Dissertations / Theses: 'Mechatronics'

1

Grimheden, Martin. "Mechatronics Engineering Education." Doctoral thesis, Stockholm, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-569.

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2

Bačkys, Gediminas. "Mechatroninių sistemų modelių sudarymas ir tyrimas." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2004. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2004~D_20040909_142812-53796.

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Modeling process of mechatronics systems. Software used with PLC and simulate real equipment. System has few samples of models with pneumatics elements and model with analog device. There are education materials for students too. Software has been used for education goal at university and kolege.

3

Rogers, Adam Gregory. "Precision mechatronics lab robot development." Texas A&M University, 2007. http://hdl.handle.net/1969.1/85854.

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This thesis presents the results from a modification of a previously existing research project titled the Intelligent Pothole Repair Vehicle (IPRV). The direction of the research in this thesis was changed toward the development of an industrially based mobile robot. The principal goal of this work was the demonstration of the Precision Mechatronics Lab (PML) robot. This robot should be capable of traversing any known distance while maintaining a minimal position error. An optical correction capability has been added with the addition of a webcam and the appropriate image processing software. The primary development goal was the ability to maintain the accuracy and performance of the robot with inexpensive and low-resolution hardware. Combining the two abilities of dead-reckoning and optical correction on a single platform will yield a robot with the ability to accurately travel any distance. As shown in this thesis, the additional capability of off-loading its visual processing tasks to a remote computer allows the PML robot to be developed with less expensive hardware. The majority of the literature research presented in this paper is in the area of visual processing. Various methods used in industry to accomplish robotic mobility, optical processing, image enhancement, and target interception have been presented. This background material is important in understanding the complexity of this field of research and the potential application of the work conducted in this thesis. The methods shown in this research can be extended to other small robotic vehicles, with two separate drive wheels. An empirical method based upon system identification was used to develop the motion controllers. This research demonstrates a successful combination of a dead-reckoning capability, an optical correction method, and a simplified controller methodology capable of accurate path following. Implementation of this procedure could be extended to multiple and inexpensive robots used in a manufacturing setting.

4

Erdener, Onur Alper. "Development Of A Mechatronics Education Desk." Master's thesis, METU, 2003. http://etd.lib.metu.edu.tr/upload/1095066/index.pdf.

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In this thesis a mechatronics education desk is developed. The system developed is a low cost, versatile mechatronics education and teaching environment that aims to facilitate hands-on education of undergradutate level mechatronics students. The desk is formed of three main modules that address the needs of mechatronics education: The WorkDesk, Mechatronic Building Blocks and Experimental Setups. These parts are well designed and presented to form a complete and coordinated solution for mechatronics education. The WorkDesk is a platform devoted to the mechatronics engineering trainee, which provides mechanical, electrical and software prototyping that enables studying, testing and parts integration for mechatronic projects. The components building up the WorkDesk are selected or developed to facilitate mechatronics design and prototyping. Mechatronic building blocks necessary for mechatronics teaching are identified and selected to be a part of the system. In order to support these modules, low cost custom building blocks are also developed. These include, an autonomous mobile robot kit and a versatile interface board called ready2go. Demonstrative experiments with custom developed building blocks are also presented. Two experimental setups are developed and presented in the scope of the thesis. The setups, Intelligent Money Selector and Heater/Cooler, address and demonstrate many aspects of mechatronic systems as well as aid introducing systems approach in mechatronics education. As a consequence, a mechatronics education desk is developed and presented with many hands-on educational case studies. The system developed forms an extensible and flexible software and hardware architecture and platform that enables integration of additional mechatronics education modules.

5

White, A. S. "Mechatronics of systems with undetermined configurations." Thesis, Middlesex University, 1999. http://eprints.mdx.ac.uk/13478/.

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This work is submitted for the award of a PhD by published works. It deals with some of the efforts of the author over the last ten years in the field of Mechatronics. Mechatronics is a new area invented by the Japanese in the late 1970's, it consists of a synthesis of computers and electronics to improve mechanical systems. To control any mechanical event three fundamental features must be brought together: the sensors used to observe the process, the control software, including the control algorithm used and thirdly the actuator that provides the stimulus to achieve the end result. Simulation, which plays such an important part in the Mechatronics process, is used in both in continuous and discrete forms. The author has spent some considerable time developing skills in all these areas. The author was certainly the first at Middlesex to appreciate the new developments in Mechatronics and their significance for manufacturing. The author was one of the first mechanical engineers to recognise the significance of the new transputer chip. This was applied to the LQG optimal control of a cinefilm copying process. A 300% improvement in operating speed was achieved, together with tension control. To make more efficient use of robots they have to be made both faster and cheaper. The author found extremely low natural frequencies of vibration, ranging from 3 to 25 Hz. This limits the speed of response of existing robots. The vibration data was some of the earliest available in this field, certainly in the UK. Several schemes have been devised to control the flexible robot and maintain the required precision. Actuator technology is one area where mechatronic systems have been the subject of intense development. At Middlesex we have improved on the Aexator pneumatic muscle actuator, enabling it to be used with a precision of about 2 mm. New control challenges have been undertaken now in the field of machine tool chatter and the prevention of slip. A variety of novel and traditional control algorithms have been investigated in order to find out the best approach to solve this problem.

6

Vento, T. (Teemu). "NX Mechatronics Concept Designer -ohjelman käyttöönotto." Bachelor's thesis, University of Oulu, 2018. http://urn.fi/URN:NBN:fi:oulu-201809142793.

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Mekatronisen laitteen suunnitteluprojektin alku on kriittinen vaihe. Siinä määritellään laitteen vaatimukset ja suunnitellaan toiminnallisuudet. Seuraava vaihe on käyttöönotto, jossa testataan laitteen todellinen toiminta. Käyttöönotossa ilmenevät odottamattomat virheet johtavat suuriin kustannuksiin ja muutokseen lopullisessa toteutuksessa. Näin ollen mekaniikka-, elektroniikka- ja ohjelmistosuunnittelun vaatimukset ja rajoitteet tulee ottaa huomioon jo varhaisessa suunnitteluvaiheessa. Virtuaalisella käyttöönotolla ja simuloinnilla voidaan vähentää epäselvyyksiä ja ennaltaehkäistä virheitä ja niiden aiheuttamia kustannuksia. Siemens NX Mechatronics Concept Designer -ohjelmisto (MCD) tuo sähkö, mekaniikka- ja automaattisuunnittelun yhdelle yhteiselle alustalle. Tällöin eri osastojen insinöörit pääsevät kommunikoimaan keskenään ja näkemään ratkaisujen toimivuuden normaalia aiemmin. MCD vähentää suunnitteluprosessiin kuluvaa aikaa sekä mahdollistaa monitieteellisen yhteistyön, että virtaviivaistaa päätöksentekoa suunnittelun konseptivaiheessa. Ohjelmistolla on mahdollista simuloida mekatronisen laitteen todellista toimintaa ja suorittaa virtuaalinen käyttöönotto. Tässä työssä esitellään mainittu MCD-ohjelmisto ja kerrotaan sen yleisimmät toiminnallisuudet. Tutkintotyön sisältöä käytetään mahdollisesti koulutusmateriaalina
The beginning phase of a mechatronics design project is critical. All requirements and functionalities for the product are defined and a prototype design is built. Next phase is commissioning, where the actual operations and functionalities of the product are found. This is where unexpected errors are often detected, and the costs are multiplied compared to an earlier detection of errors. It is cost-effective and crucial to emphasize the importance of earlier phases and virtual commissioning in the mechatronics design project. This way all errors can be found as early as possible. Siemens NX Mechatronics Concept Designer (MCD) software enables multi-discipline collaboration for electrical, mechanical and automation design. This way different disciplines can deliver faster designing with fewer integration issues in the process. The software reduces product’s time-to-market and provides better decision making through concept evaluation. It’s also possible to implement a virtual commissioning of a functional model. The objective of this thesis was to present basic functionalities of the MCD software. The document presents all basic functions and can also be used as educational material in the future

7

GAUFFIN, HENRIK, and LUNDQVIST ISIDOR SÖDERMAN. "Claw Machine : Bachelors thesis in mechatronics." Thesis, KTH, Skolan för industriell teknik och management (ITM), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-279793.

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A simple idea can have many different construction solutions and a claw machine is a good machine to try different solutions on. The goal of this thesis was to find out how a claw machine could be created as simple as possible and finding out which parts that were essential in constructing the machine. The claw machine’s shell was built using a laser cutter and details were 3D-printed. With 4 metal rods and two stepper motors the claw machine gantry worked properly. Finally a 3D-printed claw was made and attached to a servo motor and a stepper motor, a functional claw machine had been constructed. The conclusions of this thesis was that stop-sensors were not necessary in the making of the machine as the motors can’t move the claw further than to the edges and risk damaging the machine, step counting with proper belts is an alternative. Further conclusions was that 3D-printed bearings creates too much friction and therefore the gantry can’t operate, and using a fixed timing belt instead of a movable one is to prefer.
En enkel idé kan ha många olika konstruktionslösningar, en klomaskin är ett exempel på en sådan idé som kan fungera som ett exempel att pröva olika konstruktionslösningar på. Målet med det här kandidatexamensarbetet var att undersöka hur en klomaskin kan uppnå sin funktion genom att ta reda på vilka komponenter som är viktigast för att konstruera maskinen. Klomaskinens skal laserskärdes och detaljdelar 3D-printades. Med 4 metallstänger och stegmotorer så fungerade klomaskinens ställning. Slutligen så var klomaskinen konstruerad. Slutsatser av det här kandidatexamensarbetet var att stoppsensorer inte var nödvändiga eftersom motorerna inte kunde föra klon längre än i det begränsade området och riskera att skada maskinen, stegräkning är ett alternativ med kuggremmar som inte slirar. Andra slutsatser var att 3D-utskrivna lager resulterade i mycket friktion och därmed en mekanism som inte fungerade och att använda en fix kuggrem är att föredra över en rörlig.

8

Fridrichovský, Jan. "Modelování a řízení mechatronických soustav v SolidWorks a NI LabVIEW." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2009. http://www.nusl.cz/ntk/nusl-228817.

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When designing a Mechatronics system should be the management implemented into the mechanism of technological products. It is therefore necessary to create a connection tool for the management design and tools for the CAD of the management mechanism. The company responded that the need for the issuance of National Instruments toolkit to connect the NI LabVIEW with SolidWorks CAD tool. This link allows the NI LabVIEW environment to control the simulation on the virtual model in the SolidWorks/COSMOS Motion and back to obtain the results of dynamic analysis. The aim of this work is to evaluate the possibility of linking development tools and CAD system and evaluate its use in the design of Mechatronics system.

9

How, Peter H. J. (Peter Hsiang Jen) 1978. "Development of a portable educational mechatronics toolkit." Thesis, Massachusetts Institute of Technology, 2003. http://hdl.handle.net/1721.1/89375.

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10

Morris, David T. "Mechatronics for sophomore-level mechanical engineering students." Morgantown, W. Va. : [West Virginia University Libraries], 2000. http://etd.wvu.edu/templates/showETD.cfm?recnum=1525.

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Thesis (M.S.)--West Virginia University, 2000.
Title from document title page. Document formatted into pages; contains ix, 147 p. : ill. (some col.) Includes abstract. Includes bibliographical references (p. 130-133).

11

Grimheden, Martin. "Learning Mechatronics : In Collaborative, Experimental and International settings." Licentiate thesis, KTH, Machine Design, 2002. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-1515.

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The academic subject of mechatronics has been definedpreviously in numerous publications. This study aims atanalyzing mechatronics by using categories developed within theeducational science of Didactics. The result of the analysis,that relies on data from mechatronics education at KTH andother universities, shows that the identity of mechatronics canbe described as thematic, and the legitimacy as functional,which gives implications for the questions of communication andselection: what should be taught, and how. This is combinedwith a study of the evolution of the subject of mechatronics,where it is possible to see the gradually changing identity,from a combination of a number of disciplinary subjects to onethematic subject.

The first part of the thesis concludes that mechatronics isautonomous, thematic and functional. Teaching and learningmechatronics according to the identity and legitimacy of thesubject benefits from collaborative, experimental andinternational settings. The functional legitimacy todayrequires the collaborative and the international setting,meaning that the mechatronics employer requires these skillswhen employing a mechatronic engineer. Further, an exemplifyingselection requires the experimental setting, in particular whencomparing a representative selection with the reproduction ofknowledge, and an exemplifying selection with the creation ofknowledge.

To conclude, there are a number of important aspects to takeinto account when teaching and learning mechatronics. Three ofthese aspects, collaborative, experimental and internationalare suggested as important, and also a direct consequence ofthe identity of mechatronics. This thesis shows that thesethree aspects are indeed possible to integrate intomechatronics education, which will benefit greatly fromthis.

QC 20100609

12

Adamsson, Niklas. "Mechatronics engineering : New requirements on cross-functional integration." Licentiate thesis, Stockholm, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-152.

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13

Plante, Jean-Sébastien Ph D. Massachusetts Institute of Technology. "Dielectric elastomer actuators for binary robotics and mechatronics." Thesis, Massachusetts Institute of Technology, 2006. http://hdl.handle.net/1721.1/35305.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2006.
This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.
"February 2006."
Includes bibliographical references (p. 145-153).
Future robotics and mechatronics applications will require systems that are simple, robust, lightweight and inexpensive. A suggested solution for future systems is binary actuation. Binary actuation is the mechanical analogy to digital electronics, where actuators "flip" between two discrete states. Systems can be simple since low-level feedback control, sensors, wiring and electronics are virtually eliminated. However, conventional actuators, such as DC motors and gearbox are not appropriate for binary robotics because they are complex, heavy, and expensive. This thesis proposes a new actuation technology for binary robotics and mechatronics based on dielectric elastomer (DE) technology. DE actuators are a novel class of polymer actuators that have shown promising low-cost performance. These actuators were not well understood and, as a result, faced major reliability problems. Fundamental studies conducted in this thesis reveal that reliable, high performance DE actuation based on highly viscoelastic polymers can be obtained at high deformation rates, when used under fast, intermittent motion.
(cont.) Also, analytical models revealed that viscoelasticity and current leakage through the film govern performance. These results are verified by an in-depth experimental characterizion of DE actuation. A new DE actuator concept using multi-layered diamond-shaped films is proposed. Essential design tools such as reliability/performance trade-offs maps, scaling laws, and design optimization metrics are proposed. A unit binary module is created by combining DE actuators with bistable structures to provide intermittent motion in applications requiring long-duration stateholding. An application example of binary robots for medical interventions inside Magnetic Resonance Imaging (MRI) systems illustrates the technology's potential.
by Jean-Sébastien Plante.
Ph.D.

14

Xie, Yi 1980. "Mechatronics examples for teaching modeling, dynamics, and control." Thesis, Massachusetts Institute of Technology, 2003. http://hdl.handle.net/1721.1/29730.

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Thesis (M.Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2003.
Includes bibliographical references (leaves 109-110).
This thesis presents the development of a single-axis magnetic suspension. The intention is to use this system as a classroom demo for an introductory course on modeling, dynamics, and control. We solve this classic nonlinear controls problem with feedback linearization; the main advantage with this technique is operating point independency. However, it is highly sensitive to modeling errors and unpredicted plant behavior. We overcome these barriers by using a model based on both theory and experimentally determined behavior. This paper details the theory, modeling, and implementation, concluding with performance analysis.
by Yi Xie.
M.Eng.

15

Vasylenko, O. V., G. V. Snizhnoi, and Yu S. Yamnenko. "Mechatronics as a basis for cyber-physical systems." Thesis, Київський національний університет технологій та дизайну, 2021. https://er.knutd.edu.ua/handle/123456789/19185.

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Grove, Donald E. "The Vertical Integration of Mechatronics at Virginia Tech." Thesis, Virginia Tech, 2001. http://hdl.handle.net/10919/31554.

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The focus of this thesis is on the vertical integration of mechatronics in the mechanical engineering curriculum at Virginia Tech. It reports the details of an experimental strategy to integrate mechatronics at an early level in the education of engineers. A proposal was submitted to and accepted by the NSF/SUCCEED coalition to fund this experiment. Through this assistance, the experiment of vertically integrating mechatronics was initiated. The methodology in which it was integrated is presented -- through optional participation in a sophomore design class and a required design project in a junior system dynamics course. The material developed for the vertical integration of mechatronics is in the appendices. This material is appropriate for other institutions to use to vertically integrate mechatronics into their curriculums, which is part of the NSF/SUCCEED coalitionâ s initiative. For the sophomore class, ME 2024, Introduction to Engineering Design and Economics, selected sections were exposed to the concepts of mechatronic design, along with the normal course material. Students in the mechatronic sections were given an opportunity to incorporate the use of a custom-built VT Project Box and the PIC Visual Development (PVD) software, both of which were created specifically for the task of vertical integration of mechatronics. Throughout the semester, the students were given several demonstrations of mechatronic systems through the use of the project box and software. Many students decided to implement mechatronic concepts in their final design projects. A smaller number of students made a decision to use the project box and software to develop a prototype of their final design project. Candid remarks about the students experiences, obtained from a survey at the semesterâ s end, indicated that the vertical integration of mechatronics was a motivational feature in the second-year curriculum. For the junior class, ME 3514, System Dynamics, all sections were exposed to the concepts of mechatronics, along with the normal course material. The students were required to acquire steady-state velocity data from a DC motor and create an analytical model of the motor to predict the steady-state velocity for a given duty cycle of a pulse-width modulated controller. After the collection of the data and the creation of the analytical model, the students compared the results of simulations to the actual data collected, and report the comparison to the instructor in a memorandum. The collection of the steady-state velocity data was accomplished using the PVD software and the VT Project Box. The essentials of mechatronics was communicated to the students in two lectures, and the students gained hands-on experience with mechatronics through the use of the project box and the software. The lecture material covered the basics of mechatronics, the Mechatronics course at Virginia Tech, and detailed information about the design project. The assessment of the vertical integration of mechatronics into this junior course was accomplished by surveying all of the students in the course. The results of the survey indicated that the inclusion of mechatronics material increased the students understanding of the course material and also increased their interest in mechatronics.
Master of Science

17

Oh, HyunJoo. "Computational Design Tools and Techniques for Paper Mechatronics." Thesis, University of Colorado at Boulder, 2019. http://pqdtopen.proquest.com/#viewpdf?dispub=10973750.

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Paper Mechatronics is a new design medium that integrates traditional papercrafting with mechanical, electrical, and computational components. This multidisciplinary medium adds layers to the creative possibilities of traditional papercrafting. This dissertation presents computational design tools and techniques that I designed and developed to enable novices to build their own Paper Mechatronics. I begin with an overview to describe Paper Mechatronics as a new medium for learning by making. Then I illustrate the design considerations and development of tools and associated prototyping techniques to support novice designers. Finally, I report on Paper Mechatronics workshops as user studies, where I assess the tools and techniques and discuss findings and lessons learned from working with a group of children, educators, and fellow researchers.

These investigations show that Paper Mechatronics can be a compelling means for exploratory construction that promotes powerful ideas. Consciously designed tools and techniques can lower the entry bar for novice designers to actively explore their ideas through design and engineering. This work establishes a foundation for Paper Mechatronics as a medium to enable creative learning and open a further discourse on developing tools and techniques to widen access to exploratory construction, thus promoting creativity.

18

Roos, Fredrik. "On design methods for mechatronics : servo motor and gearhead." Licentiate thesis, Stockholm, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-167.

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19

Zhang, Liwei. "Mechatronics and machine vision for contaminant removal from wool." Thesis, University of Leeds, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.400842.

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Bleakley, Graham John. "A methodology for the design of safety critical mechatronics." Thesis, City University London, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.310448.

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Trabasso, Luis Gonzaga. "Mechatronics approach to computer integrated decoration of scale models." Thesis, Loughborough University, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.303174.

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Schmitt, Peter (Peter Alfons). "originalMachines : developing tools and methods for object-oriented mechatronics." Thesis, Massachusetts Institute of Technology, 2011. http://hdl.handle.net/1721.1/67761.

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Thesis (Ph. D.)--Massachusetts Institute of Technology, School of Architecture and Planning, Program in Media Arts and Sciences, 2011.
Cataloged from PDF version of thesis.
Includes bibliographical references (p. [161]-166).
The digital revolution has fundamentally changed our lives by giving us new ways to express ourselves through digital media. For example, accessible multimedia content creation tools allow people to instantiate their ideas and share them easily. However, most of these outcomes only exist on-screen and online. Despite the growing accessibility of digital design and fabrication tools the physical world and everyday objects surrounding us have been largely excluded from a parallel explosion of possibilities to express ourselves. Increasingly, webbased services allow professional and non-professional audiences to access computer-aided manufacturing (CAM) tools like 3D-printing and laser-cutting. Nonetheless, there are few (if any) design tools and methods for creating complex mechanical assemblies that take full advantage of CAM systems. Creating unique mechatronic artifacts or "originalMachines" requires more specific and sophisticated design tools than exist today. "Object-Oriented Mechatronics" is a parametric design approach that connects knowledge about mechanical assemblies and electronics with the requirements of digital manufacturing processes. Parametric instances like gears, bearing and servos are made available as objects within a CAD environment which can then be implemented into specific projects. The approach addresses the missing link between accessible rapid-manufacturing services and currently available design tools thereby creating new opportunities for self-expression through mechatronic objects and machines. The dissertation matches mechanical components and assemblies with rapid manufacturing methods by exploring transferability of conventional manufacturing techniques to appropriate rapid manufacturing tools. I rebuild various gearing and bearing principles like four-contact point bearings, cross roller bearings, spur and helical gears, planetary gears, cycloidal and harmonic gear reducers using the laser cutter, the CNC-mill and the 3D-printer. These explorations lead to more complex assemblies such as the PlywoodServo, 3DprintedClock and 3-DoF (Degree of Freedom) Head. The lessons from these explorations are summarized in a detailed "cook book" of novel mechatronic assemblies enabled by new fabrication tools. Furthermore, I use the results to develop a CAD tool that brings together several existing software packages and plug-ins including Rhino, Grasshopper and the Firefly experiments for Arduino, which will allow animation, fabrication and control of original machines. The tool is an example of an object-oriented design approach to mechatronic assemblies. A user calls a DoF (Degree of Freedom) object (parametric servo) with specific parameters like gearing and bearing types, motor options and control and communication capabilities. The DoF object then creates the corresponding geometry which can be connected and integrated with other actuators and forms. A group of roboticists and designers participated in a workshop to test the tool and make proposals for original machines using the tool. The dissertation has contributions on multiple levels. First, the actuator assembly examples and parametric design tool present a body of novel work that illustrates the benefits of going beyond off-the-shelf actuator assemblies and kit-of-parts for robotic objects. Second, this tool and the accompanying examples enable the design of more original machines with custom actuator assemblies using the latest digital fabrication tools. Finally, these explorations illustrate how new CAD/ CAM tools can facilitate an exchange between more design-oriented users and more engineering-oriented users.
by Peter Schmitt.
Ph.D.

23

Zhang, Ruoyu. "An Evaluation of Mixed Criticality Metric for Mechatronics Systems." Thesis, KTH, Maskinkonstruktion (Inst.), 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-201092.

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In the thesis, we studied mechatronics systems which integrate tasks (applications) with different level of criticality on a common embedded system. The integration aims to reduce hardware cost (less processors and other components) and the weight and volume of the system. The power consumption of the system would be also reduced. The integration gives a lot of advantages but also creates new challenges. The main challenge of the system development is how to separate (isolate/protect) tasks with different criticality levels. Separation can be classified in two types, temporal separation and spatial separation. Temporal separation ensures that high criticality tasks can access resources with higher priority than low criticality tasks. Spatial separation is about preventing fault propagation from low criticality tasks to high criticality tasks. Many techniques that can make separation of tasks are studied in the thesis, and can be grouped into four categories: scheduling, power management, memory protection and communication protection. To select proper techniques that can improve the system the most, fault tree analysis and mixed criticality metric are employed. Fault tree analysis helps us to find courses of hazards that the system has to deal with. Then, we identify some techniques that can solve the problem of tasks separation. Mixed criticality metric is employed to evaluate these techniques. The evaluation result will help developers to select techniques. A self-balancing robot, which is simulated by SimScape (SimMechanics and SimElectronics) and TrueTime toolbox, was developed for experiments. Such techniques as scheduling, power management and communication protection were examined on the platform. Pros and cons ofthese techniques were evaluated. Finally, a number of recommendations for engineers with regards to the techniques for mixed criticality systems, based on our research, were provided. (Source code are shared in Matlab community).

24

黃俊祺 and Chun-kay Edward Wong. "Electrorheological fluid interfaces in mechatronic devices." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1998. http://hub.hku.hk/bib/B31237848.

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Wong, Chun-kay Edward. "Electrorheological fluid interfaces in mechatronic devices /." Hong Kong : University of Hong Kong, 1998. http://sunzi.lib.hku.hk/hkuto/record.jsp?B1965733X.

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Snyman, Christo Johannes. "Development of a navigation system for an autonomous guided vehicle using android technology." Thesis, Nelson Mandela Metropolitan University, 2012. http://hdl.handle.net/10948/d1020025.

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27

Wabner, Markus. "Funktionalitätsverbesserung von spanenden Werkzeugmaschinen durch additive mechatronische Systeme." Verlag Wissenschaftliche Scripten, 2019. https://monarch.qucosa.de/id/qucosa%3A72440.

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Additive mechatronische Systeme (AMS) sind geeignet, die Funktionalität von Werkzeugmaschinen (WZM) zu verbessern. Die Vielfalt und Redundanz der entwickelten Lösungen erschwert jedoch die optimale Berücksichtigung von AMS im frühzeitigen Entwicklungsprozess von WZM. In der vorliegenden Arbeit wird eine Vorgehensweise aufgezeigt, den möglichen Lösungsraum schon frühzeitig einzugrenzen und damit zielführende Lösungen effektiv zu kanalisieren. Hierfür werden im ersten Schritt Funktionalitätsgrenzen von WZM bewertet. Danach erfolgt die Definition von AMS-Funktionsprinzipien und eines geeigneten Beschreibungsansatzes, um daraus allgemeine Eingriffsstrategien für AMS in WZM abzuleiten und vergleichend zu bewerten. Abschließend werden die Auswirkungen der vorgeschlagenen Vorgehensweise auf den Entwicklungsprozess von WZM diskutiert. Anhand dreier Anwendungsbeispiele werden die erarbeiteten Vorgehensweisen und Werkzeuge validiert und Grenzen aufgezeigt.
Additive mechatronic systems (AMS) are suitable for improving the functionality of machine tools. However, the variety and redundancy of the solutions developed make it difficult to optimally take AMS into account in the early development process of machine tools. In the present work a procedure is shown to limit the possible solution space and thus to identify effective solutions at an early stage. For this purpose, the functional limits of machine tools are assessed in the first step. This is followed by the definition of AMS functional principles and a suitable description approach in order to derive general intervention strategies for AMS in machine tools and to evaluate them comparatively. Finally, the effects of the proposed procedure on the development process of machine tools are discussed. Using three application examples, the developed procedures and tools are validated and limits are shown.

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Kříž, Pavel. "Studie řízení životního cyklu produktu v podniku." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2018. http://www.nusl.cz/ntk/nusl-382270.

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The thesis explores sustainable development of a company focusing on PLM system in the environment of an industrial company. In the theoretical part the lifecycle of a product (PLM) is described as well as its demands and benefits focusing on the area of mechatronics. The following analysis of current IT environment gives information which is used as the basis for adjustments of the current system in a way to eliminate narrow places of the slim production of the company, avoid wasting and achieve sustainable development of the company while using current technologies.

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Madill, Daniel Richard. "Modelling and control of a haptic interface, a mechatronics approach." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/nq38253.pdf.

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El-Khoury, Jad. "A Model Management and Integration Platform for Mechatronics Product Development." Doctoral thesis, Stockholm, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-3859.

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31

Vermaak, H. J., and G. D. Jordaan. "Automated component-handling system for education and research in Mechatronics." Journal for New Generation Sciences, Vol 6, Issue 1: Central University of Technology, Free State, Bloemfontein, 2008. http://hdl.handle.net/11462/501.

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Published Article
Mechatronic practitioners are engaged in the assembly and maintenance of complex machines, plants and systems in the engineering sector or in organisations which purchase and operate such mechatronic systems. Mechatronics, often described as the synergy of mechanical and computer systems together with electronic technologies, is increasingly being singled out as a core focus by both the education and business sectors. This international trend is also evident in South Africa and Engineering Faculties now have to provide students with the opportunity not only to acquire theoretical knowledge in Mechatronics but also to develop skills in implementing and designing mechatronics systems.

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PASQUALOTTO, DARIO. "Towards more autonomous and intelligent industrial AC drives for Mechatronics." Doctoral thesis, Università degli studi di Padova, 2022. http://hdl.handle.net/11577/3443504.

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The modern industrial world calls for efficient, reliable and safe systems. A contribution to the solution to all these problems is the predictive maintenance. According to this trend and tailoring the analysis to the electric drives field, this thesis performs a step forward for the realization of more reliable drives through their condition monitoring. Different AC motors have been considered in the dissertation: Permanent Magnet Synchronous Motors, Induction Motors and Synchronous Reluctance Motors, covering the actual and also the next future industrial drives scenario. Some of the more relevant faults that can occur on these machines have been taken into account: interturn short circuits, demagnetization and damage at the rotor bars. The development of adequate observation indexes for the recognition of these failures has been researched deeply in the past. Nowadays, the prompt recognition of the incoming failure condition is the issue that modern research in this field has to face. In the following chapters, some innovative Artificial Intelligence-based tools will be applied for the condition monitoring of electric motors. Artificial Neural Networks and Convolutional Neural Networks are used here in different ways: for an effective modelling of the machine behaviour and for the knowledge-based recognition of the motor state of health. The main bottleneck in developing Neural Networks is the availability of a proper training dataset for the efficient tuning of their weights. In case of electric motors, the problem is even more relevant. A huge amount of healthy and damaged motors are needed, an unaffordable condition for this industry-oriented context. As an innovative and never-used-before approach, very precise models of the motors have been used in the thesis to generate artificially the training dataset. When these models were not available, the Data Augmentation theory was used instead as a keen and innovative approach for the artificial enhancing of the available training datasets. Very relevant results have been obtained and the principal and more significant ones are reported in this dissertation. Three different Convolutional Neural Network designs are reported. The first, trained only on a simulative accurate model of the motor, was able to efficiently recognize demagnetization and the interturn fault on Permanent Magnet Synchronous Motors. The second one, oriented to Induction Motors, the model was not available and so Data Augmentation was used to train the network that recognizes broken bars in the rotor. The third network was used again for Induction Motors but it made use of a model which definition was still based on a built-in Neural Network. Finally, this same Artificial Intelligence-based modelling methodology was used for the effective implementation of the Extended Kalman Filter for the sensorless control of Synchronous Reluctance Motors, thus further enhancing the reliability of the drive, since the position sensor is avoided. The motor non linearities have been managed through a custom Artificial Neural Network and new approaches to the original Extended Kalman Filter implementations have been studied. As common root of all the treated topics, Neural Networks applicability on the electric drives field has been investigated. In the development of these tools, a special and careful eye was taken to maintain the solution feasible and attractive from an industrial point of view. Therefore, each of the arguments was fully validated through an intensive simulation and experimental stages, as reported in the thesis.
The modern industrial world calls for efficient, reliable and safe systems. A contribution to the solution to all these problems is the predictive maintenance. According to this trend and tailoring the analysis to the electric drives field, this thesis performs a step forward for the realization of more reliable drives through their condition monitoring. Different AC motors have been considered in the dissertation: Permanent Magnet Synchronous Motors, Induction Motors and Synchronous Reluctance Motors, covering the actual and also the next future industrial drives scenario. Some of the more relevant faults that can occur on these machines have been taken into account: interturn short circuits, demagnetization and damage at the rotor bars. The development of adequate observation indexes for the recognition of these failures has been researched deeply in the past. Nowadays, the prompt recognition of the incoming failure condition is the issue that modern research in this field has to face. In the following chapters, some innovative Artificial Intelligence-based tools will be applied for the condition monitoring of electric motors. Artificial Neural Networks and Convolutional Neural Networks are used here in different ways: for an effective modelling of the machine behaviour and for the knowledge-based recognition of the motor state of health. The main bottleneck in developing Neural Networks is the availability of a proper training dataset for the efficient tuning of their weights. In case of electric motors, the problem is even more relevant. A huge amount of healthy and damaged motors are needed, an unaffordable condition for this industry-oriented context. As an innovative and never-used-before approach, very precise models of the motors have been used in the thesis to generate artificially the training dataset. When these models were not available, the Data Augmentation theory was used instead as a keen and innovative approach for the artificial enhancing of the available training datasets. Very relevant results have been obtained and the principal and more significant ones are reported in this dissertation. Three different Convolutional Neural Network designs are reported. The first, trained only on a simulative accurate model of the motor, was able to efficiently recognize demagnetization and the interturn fault on Permanent Magnet Synchronous Motors. The second one, oriented to Induction Motors, the model was not available and so Data Augmentation was used to train the network that recognizes broken bars in the rotor. The third network was used again for Induction Motors but it made use of a model which definition was still based on a built-in Neural Network. Finally, this same Artificial Intelligence-based modelling methodology was used for the effective implementation of the Extended Kalman Filter for the sensorless control of Synchronous Reluctance Motors, thus further enhancing the reliability of the drive, since the position sensor is avoided. The motor non linearities have been managed through a custom Artificial Neural Network and new approaches to the original Extended Kalman Filter implementations have been studied. As common root of all the treated topics, Neural Networks applicability on the electric drives field has been investigated. In the development of these tools, a special and careful eye was taken to maintain the solution feasible and attractive from an industrial point of view. Therefore, each of the arguments was fully validated through an intensive simulation and experimental stages, as reported in the thesis.

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Bertram, Torsten, Burkhard Corves, and Klaus Janschek. "Tagungsband Mechatronik 2011: Dresden 31. März – 1. April 2011." Technische Universität Dresden, 2011. https://tud.qucosa.de/id/qucosa%3A25556.

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Mit dieser sechsten Auflage der Tagung MECHATRONIK 2011 verbindet sich neben dem 10-jährigen Tagungsjubiläum (die erste Tagung fand im Jahre 2001 statt) auch gleichzeitig eine Premiere. Nachdem die ersten fünf Tagungen erfolgreich unter den Fittichen des VDI bzw. des VDI-Wissensforums stattgefunden hatten, beginnt das zweite MECHATRONIK-Dezennium in einem geänderten Format und mit neuen Verantwortlichkeiten und wird dennoch die bewährten Traditionen der deutschsprachigen Mechatronik-Fachgemeinde weiter pflegen. Academia trifft Industrie — Mechatronik und mechatronische Produkte sind seit jeher geprägt durch die Verknüpfung von interdisziplinärem methodenorientierten Wissen und nutzerorientierter Produktgestaltung. Diese Verknüpfung bildet sich höchst erfolgreich speziell in der deutschsprachigen Mechatronik-Fachgemeinde ab, nicht zuletzt deshalb haben deutsche Mechatronikprodukte weltweit eine exzellente Marktpräsenz. Diese enge Verzahnung ist aber ebenso im Tagungsgeschehen etabliert, wo seit vielen Jahren, im Gegensatz zu vielen anderen Ländern und internationalen Tagungen, eine gute Balance zwischen Teilnehmern aus Hochschulen und Industrie gegeben ist. Dies trifft auch auf die MECHATRONIK 2011 zu, mit 47 (70 %) Beiträgen aus Hochschulen und 20 (30 %) Beiträgen aus der Industrie bzw. Industriebeteiligung. Academia trifft Industrie — Dieser Sachverhalt wird zukünftig auch ganz transparent an den Tagungsorten und dem Tagungsumfeld sichtbar sein. Ab diesem Jahr 2011 wird die Organisation und Ausrichtung durch akademische Tagungsveranstalter durchgeführt werden. Die bisherigen wissenschaftlichen Tagungsleiter Prof. Burkhard Corves (Rheinisch- Westfälische Technische Hochschule - RWTH Aachen) und Prof. Klaus Janschek (Technische Universität Dresden) werden zukünftig gemeinsam mit Prof. Torsten Bertram (Technische Universität Dortmund) für die Ausrichtung und Durchführung verantwortlich zeichnen. Als Veranstaltungsort sind entsprechende Räumlichkeiten an den beteiligten Universitäten geplant (2011 in Dresden, 2013 in Aachen, 2015 in Dortmund). Neben einer Kostenersparnis erwarten sich die Veranstalter durch das gegenüber Kongresszentren doch intimere Umfeld einen lebendigen Gedankenaustausch zwischen Wissenschaftlern, Industrievertretern und nicht zuletzt mit dem wissenschaftlichen Nachwuchs. Speziell Studierenden soll damit ein einfacherer Zugang in die Welt des wissenschaftlichen Diskurses mit Experten aus der Industrie und Praxis ermöglicht werden. Academia trifft Industrie — Eine Stärke der bisherigen MECHATRONIK-Tagungen war immer die breite fachliche Verankerung durch die verantwortliche Trägerschaft der VDI-Gesellschaft Produkt- und Prozessgestaltung (VDI-GPP) und VDI/VDE-Gesellschaft Mess- und Automatisierungstechnik (VDI/VDEGMA). Im Selbstverständnis dieser Fachgesellschaften spielt die Bereitstellung von Kommunikationsplattformen zwischen Hochschulen und Industrie eine zentrale Rolle. In den verschiedenen Fachausschüssen von VDI-GPP und VDI/VDE-GMA findet dieser Meinungs- und Informationsaustausch regelmäßig statt. Um eine breitere Fachöffentlichkeit in diese Diskussionen einzubeziehen, ist eine gemeinsame Tagung zum Thema Mechatronik eine logische und fruchtbare Konsequenz. Auch zukünftig wird der enge fachliche und institutionelle Kontakt der Tagung MECAHTRONIK zu den Fachgesellschaften aufgrund der personellen Verankerung der Tagungsveranstalter in den Fachgesellschaften VDI-GPP und VDI/VDE-GMA erhalten bleiben. Das Tagungsprogramm 2011 bietet ein breit gefächertes Angebot an aktuellen und innovativen Fragestellungen zur Mechatronik: mechatronische Produkte, Serienfertigung mechatronischer Produkte, Ressourceneffizienz, Nutzerfreundlichkeit und Akzeptanz, Entwicklungsmethoden und -werkzeuge sowie innovative Konzepte.

34

Lucas, Michael. "On the nature of modularity in mechatronic prototyping /." St. Lucia, Qld, 2000. http://www.library.uq.edu.au/pdfserve.php?image=thesisabs/absthe16580.pdf.

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35

Kumile, CM, and G. Bright. "Sensor fusion control system for computer integrated manufacturing." South African Journal of Industrial Engineering, 2008. http://encore.tut.ac.za/iii/cpro/DigitalItemViewPage.external?sp=1000669.

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Manufacturing companies of today face unpredictable, high frequency market changes driven by global competition. To stay competitive, these companies must have the characteristics of cost-effective rapid response to the market needs. As an engineering discipline, mechatronics strives to integrate mechanical, electronic, and computer systems optimally in order to create high precision products and manufacturing processes. This paper presents a methodology of increasing flexibility and reusability of a generic computer integrated manufacturing (CIM) cell-control system using simulation and modelling of mechatronic sensory system (MSS) concepts. The utilisation of sensors within the CIM cell is highlighted specifically for data acquisition, analysis, and multi-sensor data fusion. Thus the designed reference architecture provides comprehensive insight for the functions and methodologies of a generic shop-floor control system (SFCS), which consequently enables the rapid deployment of a flexible system.

36

Wells, Bruce. "Autonomous Prototype of a Full Dimension Continuous Haulage System." Thesis, Virginia Tech, 1999. http://hdl.handle.net/10919/9774.

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Design and development of a 1/10 scale prototype of a Full Dimension Continuous Haulage System manufactured by the Long-Airdox Company. The prototype, which will allow development and testing of path-planning and control algorithms for autonomous navigation and operation in underground coal mines, has been completed. The prototype system, though not an identical copy, clones all full-scale model degrees of freedom and functions necessary for navigation. In addition to the physical structure, a microcontroller-based system was developed for providing the necessary low-level motor controls, data gathering and multiple processor communications. High level software running on a laptop PC with the windows operating system is used for analyzing all measurement data, execution of path-planning and control algorithms and issuing the command data.
Master of Science

37

Pikula, Jiří. "Návrh absolutních snímačů polohy s Hallovými sondami." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2009. http://www.nusl.cz/ntk/nusl-228690.

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This work deals with possibilities of use of linear Hall sensors which are made as integrated circuit for construction of absolute sensors of position and rotary position. Hall sensors with permanent magnets allow a smaller construction. In this work there is described a design and solution of absolute linear sensor of position for linear drive of Stewart's platform and absolute sensors of rotary position for robotic manipulator Mini-swing. Use of these sensors adds many advantages, primary minimal size and high resolution.

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Hancock, Darryl Lyndon. "The application of mechatronics to investigations of the pressure filter cycle." Thesis, Loughborough University, 1998. https://dspace.lboro.ac.uk/2134/28140.

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Mechatronics involves the combination of the disciplines of Mechanical Engineering and Electrical Engineering with computer technology. The purpose of this work is to incorporate mechatronics technology into a novel experimental apparatus and perform a series of experiments to generate data on the filter cycle using this novel technique. The experimental data generated are compared with results obtained from a selection of existing theoretical models which successfully demonstrates the advantages of the novel technology used.

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Kanjanapas, Kan. "Human Mechatronics Considerations of Sensing and Actuation Systems for Rehabilitation Application." Thesis, University of California, Berkeley, 2014. http://pqdtopen.proquest.com/#viewpdf?dispub=3640496.

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With the predicted increase in worldwide elderly population in the future and already significant populations of disabled people, assistive technologies and rehabilitation devices are demanded significantly. Utilizing a human mechatronic approach results in several advantages, including capability of measuring insightful information for patient's condition and providing proper assistive torque for abnormal movement correction. This dissertation investigates several domains, including (1) human dynamics model, (2) monitoring systems, and (3) design and control of active lower extremity exoskeleton.

The dissertation begins with a study of a human dynamic model and sensing system for diagnosis and evaluation of patient's gait condition as first step of rehabilitation. A 7-DOF exoskeleton equipped with multiple position sensors and smart shoes is developed, so that this system can deliver patient's joint motion and estimated joint torque information. A human walking dynamic model is derived as it consists of multiple sub-dynamic models corresponding to each gait phase. In addition, a 3D human motion capture system is proposed as it utilizes an inertial measurement unit (IMU) sensor for 3D attitude estimation with embedded time varying complementary filter. This sensing system can deliver 3D orientations of upper extremities, and a forward kinematics animation. For the development of a rehabilitation device, an active lower extremity exoskeleton is proposed. A rotary series elastic actuator (RSEA) is utilized as a main actuator of the exoskeleton. The RSEA uses a torsion spring yielding elastic joint characteristics, which is safe for human robot interaction applications. A RSEA controller design is implemented, including a PID controller, a feedforward controller for friction compensation, and a disturbance observer for disturbance rejection. All sensing and actuation systems developed in this dissertation are verified by simulation studies and experiments.

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Hillmer, Ute. "Technology acceptance in mechatronics the influence of identity on technology acceptance." Wiesbaden Gabler, 2009. http://d-nb.info/995466742/04.

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41

Rosales, Sepulveda Juan Carlos. "A technological innovation for capsicums production in Peru: the mechatronics arms." reponame:Repositório Institucional do FGV, 2014. http://hdl.handle.net/10438/13331.

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Peru agricultural exports have increased in recent years due to (i) free trade agreements with many countries (United States, Canada, European Union, China, Thailand, Singapore, Japan, Chile, among others), (ii) an increasing international demand for healthy products, (iii) country´s economic development and (iv) more private investments in this sector (Velazco 2012). Also, if we can compare among Peru three main regions (Coast, Andean highlands and the Jungle), It is the Coast (western region) that has a developed agricultural production due to unique weather conditions, private investments, public infrastructure, transport costs and quality of land (Gomez, 2008). This country development is also related to the production of non-traditional products for export like asparagus, artichokes, capsicums, bananas, grapes, among others; produced by agro industrial companies and small farmers and that are mainly labor intensive (Gomez, 2008 and Velazco, 2012). This very successful export diversification and self-discovery process was the result of a combination of strong natural comparative advantages (mainly excellent agro climatic conditions) and a significant innovation effort. It meant the introduction and expansion of new products and markets, the entry of new firms, and experimental research and the adoption of new techniques and process technologies developed abroad (in irrigation, crop management, post-harvesting, sanitary control, storage and packing) to produce high-quality, niche (gourmet) and higher value-added products, in line with consumer trends in sophisticated food markets. In products such as asparagus, mango, organic coffee and capsicums, Peru has become a leading world exporter (OECD). For this reason one of the government main tasks for the next years is to meet urgent agriculture producer’s needs in the areas of technological Innovation and business management (MINAG). In this context, this thesis analyzes the applicability of a new technology – the mechatronic arms – specifically to capsicums production sector in Peru. We chose Capsicums production sector (paprika, chilli pepper) because is mainly labor intensive and is the sector where my family company (DIROSE SAC) operates. This innovation consists in a 40 arms mechatronic combine, and it was first created in order to improve the efficiency on the labor intensive phase of harvest for this kind of agriculture products. It is estimated that a laborer with brief training operating the machine would be equivalent to 40 people that not only would work during daytime, but also on the night shift as well. Also, using this new technology can allow a company to make additional crops that would increase their yields and annual revenues. This thesis was developed as a business plan to make this new product available for other agriculture companies that operates in the capsicums production sector in Peru; however, this new technology has the potential to be modified in order to be available to other kind of agriculture products, in Peru and other countries.

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LAN, CHUNG-JEN, and 藍崇仁. "The study of mechatronics applications on equipment automation for mechatronics modules." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/85539166093818684935.

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碩士
國立雲林科技大學
電機工程系碩士班
101
In recent decades, with the prosperous development in high-tech industries, factory automation must be able to save time and energy to enhance productivity efficiency. Thus, the system engineering technique of “Mechatronics” was developed. Mechatronics integrated mechanical devices and electronics into a single system which provided the required productive efficiency. The entire “Mechatronics” system might combine electrical, electronic, mechanical, pneumatic and computer systems as a fundamental system for the automation industry. The development and applications with Mechatronics can be seen in many aspects of the high-tech industry such as AI Robotics, HSR, Mass Transportation, factory automation equipment, electronic equipment, home appliances, and communication systems etc. Nowadays, PLC equipment had pushed their limits in size, thickness, length, and volume. Once they were integrated with human interface, the boundary of their applications was nonexistent. This study was first to integrate modules not only to complete the goal through PLC interfaces but also saved time and energy through automation. It also provided users the conveniences of manipulative modules that lead to factory automation and automation industry’s basic technology.

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Buonocore, Luca Rosario. "Mechatronics design of a robotic systems." Tesi di dottorato, 2015. http://www.fedoa.unina.it/10499/1/Buonocore_Luca_Rosario.pdf.

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The same coordination aspects are the key-points of the last proposed method about comunication: now, the robotic device have to cooperate in order to manage the object in the desired way with a good sensitivity and this can be done exploiting the torque end force sensor of the new system. A general introduction underlining the need to make a robot autonomous or at least able to operate in unstructured scenarios to cope with human end other robotic device. Project of ultralight robot arm for aerial manipulation whit simulations and experiments. Proposed robot manipulator framework in order to exploit the interaction robot-robot, redundancy management for dexterity scopes. Simulations are presented to validate the proposed hardware. And exploit the problematic of the comunication and control of the multiple platform. Simulations are presented to validate the proposed approach.

44

Chawla, B. S. "An Analysis of Strain in Chip Breaking Using Slipline Field Theory with Adhesion Friction at Chip/Tool Interface." Thesis, 2005. http://ethesis.nitrkl.ac.in/39/1/chawla-thesis.pdf.

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Despite rapid growth in the applications of metal machining in manufacturing, a comprehensive analysis of the problem of chip control has always been a di±cult task. This is because of the complex mechanism of the chip formation process and a lack of knowledge of the factors that in°uence chip form/chip breakability under a given set of input machining conditions such as work material properties, tool geometry, chip breakers and cutting conditions. Consequently, the solution to the problem has been approached empirically with a limited degree of success. In the present investigation, an attempt has been made to examine chip breaking by a step-type chip breaker using the rigid-plastic slip-line ¯eld theory. Orthogonal machining is assumed and the deformation mode is analysed using the solutions pro- posed earlier by Kudo and Dewhurst. The rake face friction is represented by the adhesion friction law suggested by Maekawa et al. The ¯elds are constructed and analysed by the m...

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Bandhu, Arpan, and Atula Kumar Panda. "Navigation and Control of Automated Guided Vehicle using Fuzzy Inference System and Neural Network Technique." Thesis, 2011. http://ethesis.nitrkl.ac.in/2478/1/thesis_abandhu_akpanda.pdf.

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Automatic motion planning and navigation is the primary task of an Automated Guided Vehicle (AGV) or mobile robot. All such navigation systems consist of a data collection system, a decision making system and a hardware control system. Artificial Intelligence based decision making systems have become increasingly more successful as they are capable of handling large complex calculations and have a good performance under unpredictable and imprecise environments. This research focuses on developing Fuzzy Logic and Neural Network based implementations for the navigation of an AGV by using heading angle and obstacle distances as inputs to generate the velocity and steering angle as output. The Gaussian, Triangular and Trapezoidal membership functions for the Fuzzy Inference System and the Feed forward back propagation were developed, modelled and simulated on MATLAB. The reserach presents an evaluation of the four different decision making systems and a study has been conducted to compare their performances. The hardware control for an AGV should be robust and precise. For practical implementation a prototype, that functions via DC servo motors and a gear systems, was constructed and installed on a commercial vehicle.

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Rohan, Kumar Sabat, and J. Behera Anshu. "Automated steering design using Neural Network." Thesis, 2012. http://ethesis.nitrkl.ac.in/3384/1/108ME006_Rohan_Kumar_Sabat_Thesis.pdf.

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If you don't move forward-you begin to move backward. Technological advancement today has brought us to a frontier where the human has become the basic constraint in our ascent towards safer and faster transportation. Human error is mostly responsible for many road traffic accidents which every year take the lives of lots of people and injure many more. Driving protection is thus a major concern leading to research in autonomous driving systems. Automatic motion planning and navigation is the primary task of an automated guided vehicle or mobile robots. All such navigation systems consist of a data collection system, a decision making system and a hardware control system. In this research our artificial intelligence system is based on neural network model for navigation of an AGV in unpredictable and imprecise environment. A five layered with gradient descent momentum back-propagation system which uses heading angle and obstacle distances as input. The networks are trained by real data obtained from vehicle tracking live test runs. Considering the high amount of risk of testing the vehicle in real space-time conditions, it would initially be tested in simulated environment with the use of MATLAB®. The hardware control for an AGV should be robust and precise. An Aerial and a Grounded prototype were developed to test our neural network model in real time situation.

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Mohanta, Dibyendu Kumar. "Use of Fuzzy Logic for Automated Steering of Unmanned Robotic Agent." Thesis, 2012. http://ethesis.nitrkl.ac.in/3396/1/pura_final.pdf.

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Application of Fuzzy Logic decision making algorithm in determining the steering angle of the vehicle to control the steering of an autonomous vehicle is analysed. It is assumed that the vehicle is equipped with passive or active sensors providing the range and heading angle information. Most of the developed automated vehicle relies on a path planning module to obtain appropriate steering commands. In this paper, the fuzzy logic scheme to emulate human driving in order to eliminate the difficulties associated with path planning is presented. Input parameters such as distance between the vehicle and the surrounding obstacle and heading angle are considered with output being the steering angle. Considering the high amount of risk of testing the vehicle in real space-time conditions, tested were first conducted in a simulated environment with the use of Fuzzy Logic Toolbox™ in MATLAB® and then implemented on ground as well as aerial automotive.

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Mishra, Pratik. "Design and fabrication of coaxial micro helicopter." Thesis, 2012. http://ethesis.nitrkl.ac.in/3432/3/Pratik_Final_Thesis.pdf.

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In this thesis the design of a coaxial micro helicopter is presented and based on the design, a model is fabricated. The thesis starts with the introduction on the previous models of micro helicopters like the Coax and the Epson. The different configurations of the micro helicopters in use are discussed and a detailed introduction on the principle of working of the coaxial configuration of helicopters is presented using the principle of conservation of angular momentum. The advantages and disadvantages of the coaxial configuration over other configurations are then given. The design process starts with the identification of the individual mechanical and electrical parts. The working of the mechanical and electrical components is individually discussed and their necessity for the fabrication process is explained. Further, the mechanical parts are designed and assembled using CATIA V5R17. Then, the model of the coaxial helicopter is fabricated and is successfully flown by remote control mechanism. The individual forces acting on the rotor blades of the fabricated model are identified and their directions are defined. By using standard equations, the values of the individual forces are calculated for the rotor blades as well as for the entire helicopter body.Using the values of the forces obtained on the rotor blades, a static analysis is presented using ANSYS. Finally, the conclusions and inferences arising in course of the work are presented and the references used in this work are mentioned.

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Sarangi, Prakash. "An Indigenous Automated GupChup Machine." Thesis, 2014. http://ethesis.nitrkl.ac.in/5566/1/110ME0329-9.pdf.

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Today automation has been an integral part of the food industry as concerns over health and safety have increased worldwide. In this paper, we take up a simple local food delight of India, The GupChup, and design a product that can automate its making process to ensure that the best taste is available to its consumers without concerns over health or safety. The product is designed to take input of Puris, boiled potatoes, spicy water and required spices and ultimately produce the GupChups. The automation ensures that the job is done faster, safer and skill independent. In addition to it, attempt has been made to ensure that standardisation of GupChup\Making process is made such that the taste of the GupChup is conserved and ensured every time for the consumer. A study of automation processes available has been made to develop an automation that fits the purpose. The final evaluation has been made afte r experimental procedures to produce the required automation

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Tibrewal, B., and T. K. Swain. "Path planning and control of mobile robot using fuzzy logic." Thesis, 2014. http://ethesis.nitrkl.ac.in/6170/1/E-43.pdf.

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In this paper study has been carried out to improve a steering technique for an self-directed bot to work in a real world atmosphere, which should be proficient of classifying and evading hindrances, precisely in a very busy a challenging atmosphere. In this paper better method is develop in circumnavigating mobile bot in afore said atmosphere. The action and reaction of the bot is addressed by fuzzy logic control scheme. The input fuzzy members are turn angle between the bot head and the target, distance of the hindrances present all around the bot (lef, rgh, and front, back).The aforesaid input members are sensed by series of infrared sensors. The obtainable FLC for steering of bot has been applied in all complex and hostile atmosphere. The outcomes hold good for all the above mention situations.

Dissertations / Theses on the topic 'Mechatronics'

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