Relevant bibliographies by topics / Electro-mechanical engineering

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers

Academic literature on the topic 'Electro-mechanical engineering'

Author: Grafiati
Published: 5 February 2023

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Journal articles on the topic "Electro-mechanical engineering"

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Naidu, D. Subbaram. "Electro-mechanical engineering, an introduction." Mechatronics 6, no. 6 (September 1996): 729–31. http://dx.doi.org/10.1016/0957-4158(96)00016-5.

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Altintas, Yusuf, and Elizabeth A. Croft. "Electro-Mechanical Design Engineering: A Progress Report and Future Directions for Mechatronics Education." International Journal of Mechanical Engineering Education 30, no. 4 (October 2002): 325–39. http://dx.doi.org/10.7227/ijmee.30.4.5.

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The Electro-Mechanical Design Engineering programme has been in place as a five-year combined interdisciplinary programme in mechanical and electronics engineering at the University of British Columbia since 1994. The students take almost all mechanical and most of the core electronics engineering courses during the first four years. They spend at least two four-month-long summer terms in industry as cooperative education students, where they receive training in practical design, drafting, manufacturing and instrumentation. The fifth year is dedicated to the complete design and manufacturing of a computer controlled machine in industry. Teams of students design the complete mechanical system with actuators, sensors and computer control units under the joint supervision of a faculty member and a qualified engineer designated by the sponsoring company. Upon the completion and testing of the full electro-mechanical machine and four graduate courses, the students receive a Bachelor and Master of Engineering in Electro-Mechanical Engineering. The Electro-Mechanical students receive academic and industrial training in mechanical, electronics and software engineering, and are in high demand in industry and academia upon graduation. The present status and future of this programme, including the proposed expansion of the programme to the M.A.Sc. Degree (currently under faculty review), is discussed.
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Subbaram Naidu, D. "Understanding electro-mechanical engineering, an introduction to mechatronics." Mechatronics 6, no. 5 (August 1996): 611–12. http://dx.doi.org/10.1016/0957-4158(96)00017-7.

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Sharkey, N., and A. Sharkey. "Electro-mechanical robots before the computer." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 223, no. 1 (December 1, 2008): 235–41. http://dx.doi.org/10.1243/09544062jmes1262.

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There were several electro-mechanical robots in the period leading up to the birth of the Journal of Mechanical Engineering Science in 1959. The authors examine the rise and fall of the electro-mechanical robot in the early twentieth century. After exploring the roots and uses of the term ‘robot’, a historical survey of the early landmark robots is provided. Some were controlled remotely by wireless radio signals or by selectively operating relays with whistle tones or by converting sound into light. Long before the invention of the modern digital computer, there were robots working autonomously with simple sensing and open-loop control. There were even learning machines. Many of the machines were inspired by and in turn inspired the development of mechanistic biology in the early twentieth century. The article ends with the demise of the electro-mechanical robot as the computer is developed and the new artificial intelligence takes hold.
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Samimi Gharaie, Sadaf, Amir Seyfoori, Bardia Khun Jush, Xiong Zhou, Erik Pagan, Brent Godau, and Mohsen Akbari. "Silicate-Based Electro-Conductive Inks for Printing Soft Electronics and Tissue Engineering." Gels 7, no. 4 (November 27, 2021): 240. http://dx.doi.org/10.3390/gels7040240.

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Hydrogel-based bio-inks have been extensively used for developing three-dimensional (3D) printed biomaterials for biomedical applications. However, poor mechanical performance and the inability to conduct electricity limit their application as wearable sensors. In this work, we formulate a novel, 3D printable electro-conductive hydrogel consisting of silicate nanosheets (Laponite), graphene oxide, and alginate. The result generated a stretchable, soft, but durable electro-conductive material suitable for utilization as a novel electro-conductive bio-ink for the extrusion printing of different biomedical platforms, including flexible electronics, tissue engineering, and drug delivery. A series of tensile tests were performed on the material, indicating excellent stability under significant stretching and bending without any conductive or mechanical failures. Rheological characterization revealed that the addition of Laponite enhanced the hydrogel’s mechanical properties, including stiffness, shear-thinning, and stretchability. We also illustrate the reproducibility and flexibility of our fabrication process by extrusion printing various patterns with different fiber diameters. Developing an electro-conductive bio-ink with favorable mechanical and electrical properties offers a new platform for advanced tissue engineering.
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Gai, Jiang Tao, Shou Dao Huang, Guang Ming Zhou, and Yi Yuan. "Design and Analysis of a Novel Structure Form of Electro-Mechanical Transmission." Advanced Materials Research 694-697 (May 2013): 497–502. http://dx.doi.org/10.4028/www.scientific.net/amr.694-697.497.

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In order to search after a new way of the propulsion system of tracked vehicle, a novel structure form of electro-mechanical transmission was developed in this paper, through analyzing the advantages and disadvantages of existing projects of electric drive system for tracked vehicle. It could increase the rate of power exertion obviously and synthesize the mechanical and electrical strongpoint. And based on the structure form, an electro-mechanical transmission was designed with double electromotor added planetary mechanism of steering power coupling and gearshift, considering engineering realization. And then straight-line driving and steering performances of the transmission were calculated which proved that the novel electro-mechanical transmission could meet the requirement of tracked vehicle propulsion well.
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Съянов, Сергей, Sergey Siyanov, Алина Папикян, and Alina Papikyan. "Functionally-directed technologies at electro-erosion processing." Science intensive technologies in mechanical engineering 2018, no. 2 (February 1, 2018): 35–39. http://dx.doi.org/10.12737/article_5a70c1056a7c84.65409961.

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An electro-erosion processing (EEP) is one of the efficient and economically advantageous methods of material machining in mechanical engineering. The EEP has a number of considerable advantages widening a field of practical use of this machining method at manufacturing different products of mechanical engineering. Currently used technologies of product electro-erosion processing ensure essential operational characteristics for limited working conditions only. The solution of this matter is possible on the basis for product manufacturing by electro-erosion methods of functionally-directed technology application. With the aid of this methodology still at the stage of engineering procedure design it is possible to ensure the specified operational characteristics depending on electro-erosion processing modes.
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Li, Xueliang, Xinyu Kang, Xin Ba, Zengxiong Peng, Shujun Yang, and Zhifu Zhao. "A Design Methodology for Dual-Mode Electro-Mechanical Transmission Scheme Based on Jointing Characteristics." Energies 15, no. 15 (July 28, 2022): 5482. http://dx.doi.org/10.3390/en15155482.

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Electro-mechanical transmission is the best choice for the transmission system of military, engineering and other heavy special vehicles. The scheme design is fundamental and key to realize the original innovation of the electro-mechanical transmission. Therefore, a novel design method of a planetary-gear scheme is proposed for electro-mechanical transmission. According to the distribution of mechanical points and the speed continuous condition of mode switching, the mode combination law of a dual-mode electro-mechanical transmission is obtained, i.e., the input split mode based on the scheme of three-degree-of-freedom (3-DOF) and the compound split mode based on the scheme of 2-DOF. Moreover, a design method for an electro-mechanical transmission scheme is proposed based on the mode combination law. Two single-mode schemes are combined to form a dual-mode scheme, and then mode jointing, control logic, isomorphism and other screening conditions are in turn used to screen schemes; therefore, two optimized schemes are obtained ultimately. Lastly, by analyzing the characteristics of speed, torque and the power split of the optimized schemes, the accuracy of the proposed design method in this paper is verified. The proposed design method can provide new ideas of designing multi-mode and multi-output electro-mechanical transmission schemes.
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Hsu, Hsiang Chen, Shen Wen Ju, Jie Rong Lu, and Yue Min Wan. "Electromigration Analysis and Electro-Thermo-Mechanical Design for Package-on-Package (POP)." Advanced Materials Research 126-128 (August 2010): 929–34. http://dx.doi.org/10.4028/www.scientific.net/amr.126-128.929.

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An electro-thermo coupling finite element model is developed to investigate the electromigration and electro-thermo-mechanical effects on electronic packaging. Sn4.0Ag0.6Cu (SAC405) solder ball are commonly used on POP package in this research. Current density arising in the Copper trace above SAC405 solder ball implies the hot spot where results in an electromigration along the current direction. Finite element predictions reveal the peak electro-thermo-mechanical effective stress is located at the regions where electromigration potentially occurred. Current crowding, temperature distribution and electro-thermo induced effective stress distribution are predicted. A submodel scheme is applied for evaluation of equivalent life time of solder ball. Reliability analysis on electro-thermo-mechanical for SAC405 solder ball is evaluated.
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Wang, Weiguang, Jun-Xiang Chen, Yanhao Hou, Paulo Bartolo, and Wei-Hung Chiang. "Investigations of Graphene and Nitrogen-Doped Graphene Enhanced Polycaprolactone 3D Scaffolds for Bone Tissue Engineering." Nanomaterials 11, no. 4 (April 6, 2021): 929. http://dx.doi.org/10.3390/nano11040929.

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Scaffolds play a key role in tissue engineering applications. In the case of bone tissue engineering, scaffolds are expected to provide both sufficient mechanical properties to withstand the physiological loads, and appropriate bioactivity to stimulate cell growth. In order to further enhance cell–cell signaling and cell–material interaction, electro-active scaffolds have been developed based on the use of electrically conductive biomaterials or blending electrically conductive fillers to non-conductive biomaterials. Graphene has been widely used as functioning filler for the fabrication of electro-active bone tissue engineering scaffolds, due to its high electrical conductivity and potential to enhance both mechanical and biological properties. Nitrogen-doped graphene, a unique form of graphene-derived nanomaterials, presents significantly higher electrical conductivity than pristine graphene, and better surface hydrophilicity while maintaining a similar mechanical property. This paper investigates the synthesis and use of high-performance nitrogen-doped graphene as a functional filler of poly(ɛ-caprolactone) (PCL) scaffolds enabling to develop the next generation of electro-active scaffolds. Compared to PCL scaffolds and PCL/graphene scaffolds, these novel scaffolds present improved in vitro biological performance.
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Dissertations / Theses on the topic "Electro-mechanical engineering"

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Wu, SunMan Patrick. "Modeling of micro-electro-mechanical integrated test structures." Thesis, Massachusetts Institute of Technology, 1995. http://hdl.handle.net/1721.1/36044.

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Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1995.
Includes bibliographical references (leaf 38).
by SunMan Patrick Wu.
M.Eng.
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Mohammed, Dilveen Waheed. "Mechanical and electro-mechanical reliability of transparent oxide thin films for flexible electronics applications." Thesis, University of Birmingham, 2017. http://etheses.bham.ac.uk//id/eprint/7997/.

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Flexible electronic devices such as solar cells, touch panels and wearable displays have developed industrially and commercially in recent years because they are flexible and light weight at low cost. Since such devices constitute a brittle oxide layer applied to a polymer substrate, the cracking and/or film damage of the brittle inorganic coating when the device is under different mechanical and environmental loading during processing and service is one of the most important problems in the flexible electronic industry. This can lead to degradation and reduction in electrical functionality of the entire device; therefore, it is important to assess the behaviour of such layers under different mechanical deformation and environmental loads and to develop new mechanical testing for predicting reliability. This research focusses on the investigation of the reliability of two types of flexible components; indium gallium zinc oxide (IGZO), and Ag-alloy based indium tin oxide (ITO/Ag-alloy /ITO), that are typically used as a channel layer, and as an anode in thin film transistor and solar cell applications respectively. IGZO was deposited on both polyethylene terephthalate (PET) and polyethylene naphthalate (PEN) substrates for investigation including uniaxial tensile and buckling tests coupled with in situ confocal laser scanning microscopy. Ex situ scanning electron microscopy and atomic force microscopy were performed to investigate the cracking morphology of the IGZO films after testing. Furthermore, the electro-mechanical performance and corrosion resistance of ITO/Ag-alloy /ITO were investigated using in situ twisting tests, twisting fatigue, corrosion by aggressive salt environments, bending fatigue, bending fatigue-corrosion and long term bending under different temperature and humidity conditions.
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Adsul, Raveena Dnyaneshwar. "Reliability Assessment of Electro-mechanical Linear Actuator." Thesis, KTH, Skolan för industriell teknik och management (ITM), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-301632.

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Syftet med denna avhandling var att uppskatta livslängden och tillförlitligheten för det elektromekaniska linjära ställdonet genom att använda metoder för sannolikhet och statistik, med fokus på att fastställa svagare områden som kan förbättras för att inkludera dessa förbättringar i kommande generation. Bedömningen gjordes kvantitativt och kvalitativt. FMEA valdes för den kvalitativa analysen. För den kvantitativa analysen bedömdes Weibull-distribution vara den mest lämpliga för att skatta komponenternas felfrekvens. För detta valdes form- och skalparametrar enligt B. Bertsche. [1] Övergripande systemtillförlitlighet uppskattades utifrån den Boolean-teorin, där en känslighetsanalys utfördes med utgång från systemet fortsatta funktion. Det inkluderade utvärdering av komponenternas relativa betydelse för den övergripande tillförlitligheten, och att utföra känslighetsanalys med avseende på systemkomponenternas fördelningsparametrar. Baserat på den information som erhållits från kvalitativ och kvantitativ analys, erhölls underhållsaktiviteter för det elektromekaniska ställdonet under servicetiden. För att föreslå lämpliga tillförlitlighetstester var det nödvändigt att först fastställa storlek och testlängd för kommande prov. Flera testmetoder och respektive provstorleksuppskattning och urvalstester för testlängd studerades. Resultatet från FMEA ser totalt sett lovande ut. Det finns en möjlighet att några mindre fel uppstår i smörj-, kyl- och övervakningssystemet, som kan tas om hand genom att följa föreslagna underhållsaktiviteter. Ingen komponent sticker särskilt ut i tillförlitlighetsanalysen, med tanke på att säkerhetsfaktorerna för växlar överskrider minimigränsen och axlar som är konstruerade för oändlig livslängd. Individuellt verkar de utvalda lagren inte påverka det övergripande systemets tillförlitlighet. Men eftersom komponenterna anses vara i serie verkar den kombinerade tillförlitligheten hos lagren dominera hela systemets tillförlitlighet. Eftersom de tre fallstudierna genomförs för att förstå systemets beteende när det gäller tillförlitlighet, gäller ovanstående resultat för de två första fallstudierna där redskapen var säkra. I fallstudie tre påverkades systemets tillförlitlighet av både växlar och lager. Känslighetsanalysen följde samma mönster som det ses i tillförlitlighetsanalys. För fallstudie 1 och 2 - lager är signifikanta och i fallstudie 3 - rack och kugghjul 2 var mer signifikanta än lager. För tillförlitlighetsprovning har censureringsmetoder av Typ 1 och Typ 2 visat sig vara lämpliga. För uppskattning av testprov erhölls att generaliseringen av felmetoden med hjälp av Larsens nomogram var idealisk för tidiga förutsägelser.
The purpose of this thesis was to estimate the life and reliability of an electromechanical linear actuator by using methods of probability and statistics. It was essential to determine weaker areas subject to improvement and include these improvements in the design to next generations. The assessment was carried out quantitatively and qualitatively. Failure mode effects analysis was the method opted for the qualitative analysis. For the quantitative analysis, Weibull distribution was found to be the most suitable to present the failure rate of components. For the same, the shape and scale parameters were selected as suggested by B. Bertsche. [1] Overall system reliability was estimated on the basis of Boolean theory. Sensitivity analysis was carried out by using survival signature method. It included evaluating the relative importance of the components with respect to overall reliability and carrying out sensitivity analysis with respect to the distribution parameters of the system components. Based on the information obtained from qualitative and quantitative analysis, maintenance activities were derived for the electro-mechanical actuator for the period of service time. To suggest the suitable reliability tests, it was necessary to first determine the test sample size and test duration. Several test methods and respective sample size estimation and test duration selection methods were studied. In performed failure mode and effects analysis, overall the system looks promising. There is a possibility of some minor possible failures to occur in lubrication, cooling and monitoring system, which could be taken care of by following suggested maintenance activities. No component in particular stand out in the reliability analysis, given that the safety factors of gears exceed the minimum limit and shafts designed for infinite lifetime. Individually the selected bearings seem to not affect the overall system’s reliability. However, since the components are considered to be in series, the combined reliability of the bearings seem to dominate the whole system’s reliability. As the three case studies are conducted to understand the system’s behaviour in terms of reliability, above result is applicable for the first two case studies where gears are found to be safe. In case of case study three, the system’s reliability is found to be affected by both gears and bearings. The results of sensitivity analysis followed the same pattern as reliability analysis. For case study 1 and 2 - bearings were significant and in case of case study 3 - rack and gear 2 were more significant than bearings. For reliability testing, Type 1 and Type 2 censoring methods both are found to be suitable. For test sample estimation, generalisation of failures method using Larsen’s nomogram was found ideal for early predictions.
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Arab, Hassani Faezeh. "Resonant nano-electro-mechanical sensors for molecular mass-detection." Thesis, University of Southampton, 2012. https://eprints.soton.ac.uk/336335/.

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This research is conducted as a part of EU FP7 project entitled NEMSIC (hybrid nanoelectro-mechanical/integrated circuit systems for sensing and power management applications) with project partners, EPFL, TU Delft, IMEC-NL, CEA-LETI, SCIPROM, IMEC-BE, Honeywell Romania, and HiQSCREEN. Nano-electro-mechanical (NEM) sensors are getting an increased interest because of their compatibility with “In-IC” integration, low power consumption and high sensitivity to applied force, external damping or additional mass. Today, commercial biosensors are developed based on mass-detection and electro-mechanical principles. One of the recent commercial mass-detection biosensors is a quartz crystal microbalance (QCM) biosensor which achieves the mass sensitivity of a few tens pico g/Hz. The newly developed in-plane resonant NEM (IP R-NEM) sensor in this thesis achieves the mass sensitivity less than zepto g/Hz that is over nine orders smaller than that of the commercial QCM sensor using a much smaller sensing area compared to the QCM sensor. This fact will make the IP-RNEM sensor a world-unique sensor that shows a very high sensitivity to a very small change in mass. The stated mass sensitivity is achieved by modelling the functionalization and detection processes of the suspended beam. For modelling the linker molecules in the functionalization process, a conformal coating layer in different configurations are added to the suspended beam and the sparse distribution of target molecules in the detection process is modeled by changing the density of the coating layer. I would like to clarify that the scaling rule of the mass responsivity is given by k4 regardless of the different functionalization configurations. I develop a completely new hybrid NEM-MOS simulation technology which combines three-dimensional finite element method (3D FEM) based NEM device-level simulation and circuit-level simulation for NEM-MOS hybrid circuits. The FEM device-level simulation module also includes new modelling of selfassembled monolayer for surface functionalization as well as adsorb ed molecules to be detected and facilitates quantitative evaluation of mass responsivity of designed NEM sensor devices. The basic part of the sensor, the NEM structure, includes a suspended beam and two side electrodes and that is fabricated at the Southampton Nanofabrication Centre (SNC). The fabrication at SNC includes a new sensor that uses a free-free beam that improves the quality factor up to five orders of magnitude at room temperature and atmosphere based on the numerical results. The IP R-NEM sensor consists of a suspended beam that is integrated with an in-plane MOSFET and is fabricated by CEA-LETI. The monolithically integrated NEM with the MOSFET on the same SOI layer for the sensor is a real breakthrough which makes it a potential low-cost candidate among the mass-detection based sensors. With respect to the conducted radio-frequency (RF) characterization for nano-wire devices in collaboration with the Tokyo Institute of Technology and NEM structures, the designing of an RF contact pad to reduce the effect of parasitic frequencies and doing the measurement at high vacuum to reduce the motional resistance and increase the quality factor are necessary for the characterization of devices with nano-scale dimensions. The integrated MOSFET in the IP RNEM sensor amplifies the output transmission signal from the resonating beam by its intrinsic gain. The fabricated sensors show a three orders of magnitude larger gain than that of the previously proposed resonant suspended gate FETs by biasing the MOSFET at the optimized voltage biases that are found based on the DC characterization of MOSFETs.
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Tan, Nicola. "Design and manufacture of an electro-mechanical hand position tracker." Thesis, Massachusetts Institute of Technology, 2007. http://hdl.handle.net/1721.1/40943.

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Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2007.
Includes bibliographical references (p. 47).
This thesis discusses the conceptual design, manufacture, and assembly of a device that tracks the movements and position of a user's hand. This device will be used for stroke patients undergoing rehabilitation using robotic aids, monitoring their use of their unimpaired hand, particular when performing bimanual tasks. This device uses a system of linkages and potentiometers to track the angles of the wrist, as well as the MCP and CMC joints of the index finger and the thumb. This allows a simple model of the hand to be constructed on the computer in x, y, and z dimensions. In addition, a base was designed and built to locate the absolute position of the hand in three dimensions. The potentiometers are then connected to a computer where the movements can be viewed.
by Nicola Tan.
S.B.
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Lui, Emily. "Multi-Physics Interactions for Coupled Thermo-Electro-Magneto-Mechanical Effects." The Ohio State University, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=osu1306897291.

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Karlsson, Martin. "Electro-mechanical modelling and analysis of hydroelectric rotor systems." Licentiate thesis, Luleå : Luleå University of Technology, 2006. http://epubl.luth.se/1402-1757/2006/10.

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Güler, Kenan, and Milan Andelkovic. "Shock Load Absorption of Electro-mechanical Actuators." Thesis, KTH, Skolan för industriell teknik och management (ITM), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-300158.

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När ett ställdon får som krav att kunna överföra höga krafter i relativt höga hastigheter med en dessutom väldigt hög precision är elektromekaniska ställdon oftast att föredra. En traditionell pinjong-kuggstång-uppställning uppfyller vissa av de kraven, men om kraften ska ökas behövs det fler än ett pinjongpar. Begränsningar på tillverkningsprecisionen för dessa kugghjul gör att deras ansättning på kuggstången blir omöjlig för uppsättningar med fyra eller åtta pinjongpar eftersom ett sådant ställdon blir statiskt överbestämt och på grund av tillverkningstoleranser kan det bli svårt att erhålla jämn lastfördelning mellan pinjongerna. Därför utvecklade företaget Cascade Drives innovativa kugghjul (cdGear) med s.k. Flex Units som har en självinställningsfunktion i själva kugghjulen vilken tillgodogör för tillverkningstoleranser och spelet som ska undvikas. Flex Units består av bl.a. av gummielement som förutom att tillåta enstaka pinjongers rotation för inställning även har en mycket bra dämpningsförmåga, särskilt vad det gäller plötsliga stötlaster. Stötbelastningar förekommer ofta vid drift av arbetsmaskiner där Cascade Drives-ställdonet har hittat sin största användning. Plötsliga och höga stötbelastningar, som t.ex. när en grävmaskin kör in i ett gupp eller en snöröjare kör på en kantsten kan påverka maskinkomponenternas livslängd betydligt. Ett eventuellt maskinhaveri riskerar skador på både fordonet, föraren och omgivningen. Rapporten redogör för hur en teoretisk modell byggdes upp för att matematiskt beskriva dessa stötbelastningar och metoder som användes i datorprogrammet MATLAB för att beskriva det dynamiska förloppet i ställdonet under stötbelastningens inverkan. Ytterligare redogörs avgränsningar som görs på modellen och tills slut ges förslag på möjliga förbättringar för vidare arbete med modellen. Projektets syfte är inte att utvärdera hela Cascade Drives-ställdonet utan endast skapa en modell som kan tillämpas på alla möjliga scenarion av stötmoment. Rapporten innehåller några exempel på stötbelastningar och redogör för hur de påverkar olika kugghjul som ingår i ställdonet och hur det påverkar maskinen i sin helhet. För de scenarion som MATLAB-koden testades för noteras en mycket god dämpningsförmåga även vid förhållandevis höga laster (flera ton av last). Detta tack vore de patenterade flexenheterna och gummikutsarna, som kan dimensioneras och väljas för material beroende på tillämpningsområde och det tillåtna monteringsutrymmet i ställdonet. Denna modell baseras på dimensioner och materialdata tillförda av uppdragsgivaren för det aktuella ställdonet. Mer noggranna värden och en bättre kännedom om tillämpningsområdet skulle ge möjligheter för omdimensionering av flexenheterna och en mer optimal dämpnings- och momentöverföringsfunktion i ställdonet.
When requirements for an actuator include big momentum, fast transfer of the forces with a very high positioning precision, electro-mechanical actuators are often the constructor's first choice. A traditional rack-pinion setup answers to some of the requirements, but if the goal is to increase the forces which the rack undergoes, more than one pair of pinions is necessary. Production limitations, inevitable tolerances and gaps as a result make it almost impossible to have setups of four or eight pinion-pairs on one single rack because a such actuator would be statically overdetermined and out of manufacturing costs it can be difficult to procure equal load distribution between the pinions. Overcoming this challenge helped the company called Cascade Drives based in Stockholm, Sweden, to patent a new type of gear they call cdGear. CdGear give pinion the ability to position itself to the rack automatically, due to the rubber parts inside the gear that also work as shock load-absorbers for the whole actuator. Shock loads are very frequent in the type of work where these actuators found their biggest application. Heavy-duty machines are often exposed to sudden and high loads on their moving parts, i.e. when an excavator drives over a bump or a snow-plowing machine drives into a curbstone. The sudden impact on the working parts will cause a greater stress on the equipment, shorten its lifespan and a machine part's failure can even cause serious damage on workers, machine, and the environment. This thesis describes a theoretical model created for the purpose of calculating the effects of shock loads on the actuator based on the mathematical description of gear behaviour during the impact. It also includes the methods used to create a model in MATLAB that simulates the dynamical forces, model's limitations, and suggestions on how to improve its accuracy. This project does not aim to improve the overall performance of the Cascade Drives-actuator, but rather deliver a sufficient virtual model that works for the most shock load scenarios, that in the end will give the commissioner useful data and clues on how to improve their product. The thesis does include a few different shock load scenarios that prove the code's functionality and give answers to how some shock loads affect gears inside the actuator and performance of the machine itself. For the virtual tests done Cascade Drives-actuator performs very good in damping the shock loads, even when the loads reach a corresponding force of a few tons. CdGear and elasticity inside its rubber parts are the main reason why the actuator performs so well, and the rubber parts inside the gear can be changed in respect to the application and the mounting space allowed. The model described in the report includes dimensions and material's data provided by the commissioner for the actuator in question. More exact and relevant results can be acquired if the input values are more precise, and the area of usage is described in more detail. More optimal rubber parts inside the CdGear would result in a better performing actuator that besides being able to transfer huge torque also could absorb the inevitable shock loads in a very satisfactory manner.
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Gunupudi, Bindu. "Coupled superconducting microwave resonators for studies of electro-mechanical interaction." Thesis, University of Birmingham, 2015. http://etheses.bham.ac.uk//id/eprint/5699/.

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The motivation behind the work described in this thesis is to study the coupling between a nanobar and a pair of identical, coupled, superconducting microwave resonators, where the splitting frequency at their avoided crossing is close to the nanobar resonant frequency. The splitting frequency as a function of the coupling between the microwave resonators has been thoroughly investigated by theoretical simulations in COMSOL and AIM Spice, and experimentally verified by low temperature measurements. Deviations of the measured splitting from the theoretical values and reflection measurements showed that the resonators required to be tuned in order to reach the avoided crossing. A novel tuning mechanism was devised and implemented in-situ in the experiments. Tuning of resonators was successfully achieved and there was excellent agreement of the measured splitting with the predicted values. A wide frequency tuning range of 50 MHz was obtained, more than required for our experiments, without degrading the high resonator quality factors (~10\(^5\)). This enabled the measurement of the inherent splitting of the coupled resonator frequencies at the avoided crossing, and more importantly, paves the way for studies of electro-mechanical interaction. In the absence of nanobars, an analogous experiment that varied the resonator inductance instead of its capacitance was devised. The resonant frequency of one of the resonators was perturbed using a small amplitude magnetic field using a coil placed underneath the sample, a case that has not been previously explored. The results obtained from these preliminary experiments have shown a good agreement with the theoretical predictions.
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Dutta, Indrajit. "Electro-Mechanical Behavior of Strontium Modified Lead Zirconate Titanate Ceramics." University of Cincinnati / OhioLINK, 2007. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1187036967.

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Books on the topic "Electro-mechanical engineering"

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Committee, Science and Engineering Research Council Electro Mechanical Engineering. Electro Mechanical Engineering Committee. [Swindon]: SERC, 1988.

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Micro electro mechanical system design. Boca Raton: Taylor & Francis, 2005.

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Micro electro mechanical system design. Boca Raton: Taylor & Francis, 2005.

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Understanding electro-mechanical engineering: An introduction to mechatronics. New York: Institute of Electrical and Electronics Engineers, 1996.

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IEEE Robotics and Automation Council. IEEE Micro Electro Mechanical Systems: An investigation of micro structures, sensors, actuators, machines and robots, Salt Lake City, Utah, February 20-22, 1989 ; proceedings. Piscataway, NJ: Institute of Electrical Electronics Engineers, 1989.

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Nielsen, C. V. Modeling of Thermo-Electro-Mechanical Manufacturing Processes: Applications in Metal Forming and Resistance Welding. London: Springer London, 2013.

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P, Lee Abraham, American Society of Mechanical Engineers. Fluids Engineering Division., and International Mechanical Engineering Congress and Exposition (2000 : Orlando, Fla.), eds. Micro-electro-mechanical systems (MEMS), 2000: Presented at the 2000 ASME International Mechanical Engineering Congress and Exposition : November 5-10, 2000, Orlando, Florida. New York, N.Y: American Society of Mechanical Engineers, 2000.

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ASME International Mechanical Engineering Congress and Exposition (2001 New York, N.Y.). Micro-electro-mechanical systems: MEMS -- 2001 : presented at the 2000 [i.e. 2001] ASME International Mechanical Engineering Congress and Exposition, November 11-16, 2001, New York, New York. New York, N.Y: American Society of Mechanical Engineers, 2001.

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IEEE Workshop on Micro Electro Mechanical Systems (11th 1998 Heidelberg, Germany). IEEE, the Eleventh Annual International Workshop on Micro Electro Mechanical Systems: Proceedings : an investigation of micro structures, sensors, actuators, machines and systems, January 25-29, 1998, Heidelberg, Germany. [New York, N.Y.]: Institute of Electrical and Electronics Engineers, 1998.

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Walters, R. B. Hydraulic and electro-hydraulic control systems. 2nd ed. Dordrecht: Kluwer Academic Publishers, 2000.

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Book chapters on the topic "Electro-mechanical engineering"

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Singh, Sundeep, and Roderick Melnik. "Coupled Electro-mechanical Behavior of Microtubules." In Bioinformatics and Biomedical Engineering, 75–86. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-45385-5_7.

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Kavallaris, Nikos I., and Takashi Suzuki. "Micro-Electro-Mechanical-Systems (MEMS)." In Non-Local Partial Differential Equations for Engineering and Biology, 3–63. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-67944-0_1.

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Jiang, Lingling, Zhonghu Sun, Xianjian Jia, Xiaoyan Li, and Wulong Duan. "Controller Design for Electro-mechanical Actuators." In Lecture Notes in Electrical Engineering, 466–72. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-7423-5_46.

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Yan, Shao Ze, Kai Zheng, and Jian Xun. "Mechanical Properties of Piezoelectric Stack Actuators under Electro-Mechanical Loading." In Key Engineering Materials, 331–34. Stafa: Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/0-87849-410-3.331.

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Yan, Shao Ze, Fu Xing Zhang, and Shi Zhu Wen. "Electro-Mechanical Coupling Performances of a Piezoelectric Bimorph." In Key Engineering Materials, 327–30. Stafa: Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/0-87849-410-3.327.

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Liang, Fengchao, Shuang Tan, Long Chen, and Zhe Lin. "Electro-Mechanical Co-Simulation of a 6-DOF Parallel Robot." In Mechanical Engineering and Materials, 241–49. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-68303-0_19.

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Franzone, P. Colli, L. F. Pavarino, S. Scacchi, and Stefano Zampini. "Scalable Cardiac Electro-Mechanical Solvers and Reentry Dynamics." In Lecture Notes in Computational Science and Engineering, 31–43. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-93873-8_3.

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Deb, Arighna. "Reprogrammable Optical Logic Circuit Using Opto-Electro-Mechanical Device." In Lecture Notes in Electrical Engineering, 265–89. Singapore: Springer Singapore, 2022. http://dx.doi.org/10.1007/978-981-16-9124-9_13.

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Kumar, Rajeev, and Anuj Kumar Jain. "Process Parameter Characterization of Dielectric Elastomer-Based Electro-Mechanical System." In Lecture Notes in Mechanical Engineering, 695–704. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-33-4684-0_70.

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Hew, Zhi Chin, Bee Ting Chan, Wan Naimah Wan Ab Naim, Socrates Dokos, Wah Yen Tey, and Yih Miin Liew. "Electro-Mechanical Finite Element Model of Left Ventricular Hypertrophy." In 6th Kuala Lumpur International Conference on Biomedical Engineering 2021, 113–22. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-90724-2_12.

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Conference papers on the topic "Electro-mechanical engineering"

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"Electro-mechanical energy conversion." In 2016 10th International Conference on Compatibility, Power Electronics and Power Engineering (CPE-POWERENG). IEEE, 2016. http://dx.doi.org/10.1109/cpe.2016.7544195.

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Madhusudan, T. N., Katia Sycara, and D. Navin-Chandra. "On Synthesis of Electro-Mechanical Assemblies." In ASME 1996 Design Engineering Technical Conferences and Computers in Engineering Conference. American Society of Mechanical Engineers, 1996. http://dx.doi.org/10.1115/96-detc/dfm-1631.

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Abstract Research in providing feedback to designers to modify designs of electro-mechanical systems based on assembly and process plans has focused on identifying potential assembly and manufacturing problems during the design phase and providing suggestions to designers to eliminate them. Prototypical software systems provide design suggestions primarily based on the form of the different components in an electro-mechanical assembly thus providing feedback to the designers during the embodiment (form) design phase of the product. It is necessary to extend the feedback notions to other levels of abstraction describing a product i.e. function, behavior and parametric information. Performing such a task requires an understanding of the design process so as to have a better idea of the nature of feedback information required by a designer and its usage in design. In this paper, we outline a framework to integrate design feedback information in the course of the design task. This paper provides a classification of electro-mechanical products based on design requirements and describes a prototypical computational framework for the synthesis of electro-mechanical assemblies. We illustrate how assembly design (configuration design), parametric design and concept design may be integrated in a consistent manner.
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Paasch, Robert, and Parthsarathy Durgi. "Optimal Troubleshooting for Electro-Mechanical Systems." In ASME 2003 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2003. http://dx.doi.org/10.1115/detc2003/dac-48796.

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When a complex electromechanical system fails, the troubleshooting procedure adopted is often complex and tedious. No standard methods currently exist to optimize the sequence of steps in a troubleshooting process. The ad hoc methods generally followed are less than optimal methods and can result in high maintenance costs. This paper describes the use of behavioral models and multistage decision-making models in Bayesian networks for representing the troubleshooting process. It discusses advantages in using these methods and the difficulties in implementing them. An approximate method to obtain optimal decision sequence for a troubleshooting process on a complex electromechanical system is also described.
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Chen, Xi, Shiyou Xu, and Yong Shi. "Electro-Mechanical Coupling of Piezoelectric Nanocomposites." In ASME 2010 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/detc2010-29144.

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Energy harvesting technology that can increase the operation time and decrease the device size is urgently needed in wireless electronics, portable devices, and implantable biosensors. This paper reports the experimental study of electromechanical coupling of PZT (piezoelectric) nanofiber composites which have the potential to be used for energy harvesting. The recorded voltage output was about 6 mV in the experiments. In this paper, we will describe the fabrication of the piezoelectric nanocomposites and demonstrate the characteristics of electro-mechanical coupling using a dynamic mechanical test. The piezoelectric nanocomposite assembly could produce high voltage and power output to be used as a power source, which might be used for wireless sensors, personal electronics, implantable bio-sensors, and bio-actuators.
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Madhusudan, T. N., and S. K. Gupta. "Spatial Synthesis of Electro-Mechanical Products." In ASME 1997 Design Engineering Technical Conferences. American Society of Mechanical Engineers, 1997. http://dx.doi.org/10.1115/detc97/dfm-4340.

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Abstract In automated synthesis of electro-mechanical systems, considering both behavioral and spatial information is a challenging problem. This paper describes an approach to generate first-cut spatial configurations of electro-mechanical assemblies that satisfy side-effect constraints and also adhere to the basic behavioral interconnectivity specified during conceptual design. This approach is based on the branch-and-bound search technique and tightly integrated with conceptual design of electro-mechanical systems. We believe that by integrating behavioral and spatial information, one can provide a framework for effective exploration of a large number of design alternatives and increase the effectiveness of solid modelling-based assembly tools.
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Wu, Ming C. "Micro-Opto-Electro-Mechanical Systems." In Seventh International Conference and Exposition on Engineering, Construction, Operations, and Business in Space. Reston, VA: American Society of Civil Engineers, 2000. http://dx.doi.org/10.1061/40479(204)61.

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Andoga, R., K. Draganova, and M. Lassak. "Engineering approaches in control of complex electro-mechanical systems." In 2015 16th IEEE International Symposium on Computational Intelligence and Informatics (CINTI). IEEE, 2015. http://dx.doi.org/10.1109/cinti.2015.7382896.

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Luo, Albert C. J., and F. Y. Wang. "Dynamics of a Nonlinear Mechanical Resonator in Micro-Electro-Mechanical Systems." In ASME 2001 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2001. http://dx.doi.org/10.1115/imece2001/de-23229.

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Abstract Equilibrium, natural frequency and responses of a mechanical resonator with capacitors in a simplified micro-electro-mechanical system (MEMS) are determined. Under application of alternating current (AC) voltage, the resonant conditions for such a system are obtained. The chaotic motions in the vicinity of a specified resonant-separatrix are investigated analytically and numerically. For a given AC voltage amplitude, the AC frequency bands are obtained for chaotic motion in the specific resonant layers and resonant motions, and such chaotic motions can be sensed very easily by the output transducer in MEMS.
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Janakos, C. N., F. T. Goericke, and A. P. Pisano. "Micro-Electro-Mechanical Systems (MEMS) Micro-Heater." In ASME 2012 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/imece2012-85814.

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This research addresses the problem of not having access to a localized heating device that easily integrates a variety of testing needs with MEMS packaging. This device can heat MEMS while simultaneously in vacuum, exposed to harsh gases and on a rate table. The solution is a micro-heater built directly into its packaging with the capability to test MEMS at vacuum, which can be pumped down to 1 Torr in a fraction of a second and heats the device to approximately 170 degrees Celsius to simulate the temperatures MEMS devices endure. This packaging integrated with a testing device can accommodate a broad range of MEMS devices.
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Campbell, Matthew, Jonathan Cagan, and Kenneth Kotovsky. "Agent-Based Synthesis of Electro-Mechanical Design Configurations." In ASME 1998 Design Engineering Technical Conferences. American Society of Mechanical Engineers, 1998. http://dx.doi.org/10.1115/detc98/dtm-5673.

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Abstract A new theory of engineering design known as A-Design is presented that creates design configurations through the interaction of directed software agents. By combining unique problem solving strategies, these agents are able to generate solutions to open-ended design problems. Currently, the A-Design representation and implementation is tailored to solve general electro-mechanical design problems where, given specific user goals, agents within the system reason about the desired functionality to create possible alternatives. These alternatives are subject to an iterative stochastic search algorithm in order to find improved design states. This paper presents an overview of the A-Design theory and focuses on two major aspects: a method for representing electromechanical design configurations, and the reasoning of the agents which construct these configurations.
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