Relevant bibliographies by topics / Computer assisted assembly

Contents

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

Academic literature on the topic 'Computer assisted assembly'

Author: Grafiati
Published: 4 June 2021
Last updated: 14 February 2022

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Journal articles on the topic "Computer assisted assembly"

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Rodríguez, Santiago, José L. Pedraza, Antonio García, Francisco Rosales, and Rafael Méndez. "Computer-Assisted Assembly Language Programming Laboratory." International Journal of Electrical Engineering & Education 44, no. 3 (July 2007): 216–29. http://dx.doi.org/10.7227/ijeee.44.3.2.

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This paper presents a new approach for managing laboratory work mini-projects that is used in the Computer Architecture Department of the Technical University of Madrid (UPM). The approach is based on a chain of tools (a Delivery Agent; an Automatic Project Evaluator; and a Plagiarism Detection Assistant) that a small number of teachers can use to efficiently manage a course with a large number of students (400 each year). Students use this tool chain to complete the Assembly Language Programming laboratory assignments using an MC88110 simulator built in our department. Jointly, these tools have demonstrated over the last decade what important benefits can be gained from the exploitation of a global laboratory work management system. Some of the benefits may have a continuation in an area of growing importance that we have not yet explored, such as distance learning environments for technical subjects.
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Goos, Jan, Pieter Lietaert, and Robbe Cools. "Computer assisted ergonomic assembly cell design." Procedia CIRP 97 (2021): 87–91. http://dx.doi.org/10.1016/j.procir.2020.05.208.

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Luecht, Richard M. "Computer-Assisted Test Assembly Using Optimization Heuristics." Applied Psychological Measurement 22, no. 3 (September 1998): 224–36. http://dx.doi.org/10.1177/01466216980223003.

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Sarraipa, F. M., D. V. Macedo, and E. Galembeck. "PATHWAY ASSEMBLY ASSISTED BY COMPUTER: TEACHING ANAEROBIC GLYCOLYSIS." Revista de Ensino de Bioquímica 6, no. 1 (May 20, 2008): 15. http://dx.doi.org/10.16923/reb.v6i1.87.

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Lye, Sun‐Woh, and Nan‐Shing Ong. "Computer Assisted Geometric Analysis of Components for Automatic Assembly." Integrated Manufacturing Systems 4, no. 2 (February 1993): 4–14. http://dx.doi.org/10.1108/09576069310037446.

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Rahnejat, H. "Simulating for ‘Resource Optimization’ in Robot-Assisted Automatic Assembly." Proceedings of the Institution of Mechanical Engineers, Part B: Management and engineering manufacture 200, no. 3 (August 1986): 181–86. http://dx.doi.org/10.1243/pime_proc_1986_200_069_02.

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In most manufacturing systems emphasis is now given to resource flexibility in operation. The aim is to respond swiftly to changes in product mix and/or market demands. Discrete event computer simulation is seen as a tool in defining a suitable system configuration at the preliminary design stage. Furthermore, simulation in dynamic form can represent the interactions between the system components and provide a detailed prediction of its performance. Although many existing computer simulation packages have reached a good level of general purpose modelling, by and large they lack the required versatility to deal with some specific features of manufacturing systems. One such important area is the robot-assisted automatic assembly where minimization of non-productive activities in the product assembly cycle is of vital interest. This paper introduces a flexible modelling technique which identifies the resource utilization and optimization levels during the individual processes of a product assembly cycle. Within the working constraints of an assembly system, an ‘optimal’ robot sequential cycle is obtained by implementing this modelling technique in GPSL (general purpose simulation language).
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Xu, Meng, Travis A. Jarrell, Yi Wang, Steven J. Cook, David H. Hall, and Scott W. Emmons. "Computer Assisted Assembly of Connectomes from Electron Micrographs: Application to Caenorhabditis elegans." PLoS ONE 8, no. 1 (January 16, 2013): e54050. http://dx.doi.org/10.1371/journal.pone.0054050.

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Bußmann, J. "Rechnerunterstutzte Montagesteuerung im Werkzeugmaschinenbau / Computer-assisted assembly control in machine-tool engineering." Zeitschrift für wirtschaftlichen Fabrikbetrieb 89, no. 4 (April 1, 1994): 188–90. http://dx.doi.org/10.1515/zwf-1994-890425.

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Jin, Zhangjun, Cijun Yu, Jiangxiong Li, and Yinglin Ke. "A robot assisted assembly system for small components in aircraft assembly." Industrial Robot: An International Journal 41, no. 5 (August 12, 2014): 413–20. http://dx.doi.org/10.1108/ir-03-2014-0310.

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Purpose – The purpose of this paper is to propose a robot-assisted assembly system (RAAS) for the installation of a variety of small components in the aircraft assembly system. The RAAS is designed to improve the assembly accuracy and increase the productive efficiency. Design/methodology/approach – The RAAS is a closed-loop feedback system, which is integrated with a laser tracking system and an industrial robot system. The laser tracking system is used to evaluate the deviations of the position and orientation of the small component and the industrial robot system is used to locate and re-align the small component according to the deviations. Findings – The RAAS has exhibited considerable accuracy improvement and acceptable assembly efficiency in aircraft assembly project. With the RAAS, the maximum position deviation of the component is reduced to 0.069 mm and the maximum orientation deviation is reduced to 0.013°. Social implications – The RAAS is applied successfully in one of the aircraft final assembly projects in southwest China. Originality/value – By integrating the laser tracking system, the RAAS is constructed as a closed-loop feedback system of both the position and orientation of the component. With the RAAS, the installation a variety of small components can be dealt with by a single industrial robot.
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Berto Nadeak and Sony Bahagia Sinaga. "Perancangan Perangkat Lunak Pembelajaran Mikroprosesor Dengan Menggunakan Metode Computer Assisted Instruction." JUKI : Jurnal Komputer dan Informatika 2, no. 2 (May 7, 2021): 85–88. http://dx.doi.org/10.53842/juki.v2i2.31.

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The microprocessor that became the machine for the IBM PC / XT microcomputers and their compatible. This processor is often referred to as simply "8088" or "8086". Although the hardware of the 8088 is slightly different from the 8086, they can be viewed as the same from a programming perspective. The Intel 8088/8086 is a 16 bit processor, meaning that the data path and registers are 16 bits in size. The addressing mode is divided into several types, among others, register addressing, immediate addressing, direct addressing and indirect addressing. In addition, in learning Assembly language, we must memorize all registers and understand their use. Computer Aided Instruction (CAI) is a variety of information in the way of learning. Computers as a medium will help students find new things that are more interesting than conventional teacher-centered ways. Although it is known that the ways of learning and teaching, as well as the acquisition of learning information for each individual are different.
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Dissertations / Theses on the topic "Computer assisted assembly"

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Cheng, Diana I. "Magnetic assisted statistical assembly." Thesis, Massachusetts Institute of Technology, 2008. http://hdl.handle.net/1721.1/45999.

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Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2008.
Includes bibliographical references (p. 87).
The objective of this thesis is to develop a process using magnetic forces to assemble micro-components into recesses on silicon based integrated circuits. Patterned SmCo magnetic thin films at the bottom of recesses are used to provide forces to orient, align and retain micro-devices on silicon. The overall objective is to obtain functionalities not readily available from silicon device structures alone. This thesis was done in the context of assembling optoelectronic devices, specifically integrating vertical cavity surface emitting lasers (VCSELs), edge-emitting lasers (EELs), and light emitting diodes(LEDs) onto commercially processed Si-CMOS circuits. This method, magnetically assisted statistical assembly (MASA), incorporates past methods such as Fluidic Assisted Self- Assembly (FASA) and Recess Mounting with Monolithic Metalization (RM3). Specifically, MASA addresses the main limitation to the FASA method by adding a magnetic layer as a restraint to keep assembled components correctly positioned in recesses until the time bonding may occur. Thus, all components may be permanently bonded into place simultaneously saving both time and money. This thesis will present simulations using Ansoft's Maxwell 3d providing general behavioral intuition for the behavior of a device over a target magnetic substrate. These results include using a rectangle instead of a circular disc and making recess depths greater than 2pm to overcome gravitational forces when inverting the substrate. Patterns of SmCo magnetic material, based on results from the simulations, included 50x100[mu]m recesses containing either a solid rectangle, thirty 5x10[mu]m rectangular pads, eighteen 5x10m rectangular pads or four 5x10m rectangular pads.
(cont.) Patterns of SmCo material also were experimented with using 50x50 [mu]m square recesses containing either a solid square or nine 5x5[mu]m square pads. Experiments with various rectangular patterns showed evidence that upside down devices do not retain as well as right side up devices. It was also seen that four 5xl0[mu]m rectangular pads did not have enough magnetic material to retain even right side up devices. Solid rectangular patterns were also determined to have too much magnetic material to align and orient the device without recesses. Once recesses were added to the experiments, the pattern with thirty 5x10m rectangles proved to assemble the most devices with an assembly ratio of 90%. However problems occurred with fabricating perfect device shapes and thus mis-shapened devices were counted in the assembly ratio. Results from experimenting with square patterns with recesses show a 88% assembly ratio with a solid square pattern. This may be due to the symmetry of the square devices and therefore has higher probability of assembly than that of the rectangular devices.
by Diana I. Cheng.
M.Eng.
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Perkins, James Michael 1978. "Magnetically assisted statistical assembly of III-V heterostructures on silicon : initial process and technology development." Thesis, Massachusetts Institute of Technology, 2002. http://hdl.handle.net/1721.1/32712.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2002.
Includes bibliographical references (leaf 75).
This work is the initial investigation of magnetically assisted statistical assembly (MASA), a novel silicon I-v integration technique developed at M.I.T. Initially procedures for processing optoelectronic devices into magnetically sensitive 40 micron discs were performed and refined. Cobalt palladium thin films were obtained and their magnetic properties were studied. An initial procedure was developed to easily integrate these patterned, magnetized films with 60-micron diameter, 5-micron deep recesses. Pill devices were then integrated into these magnetically attractive recesses. The studied showed optoelectronic pills with magnetic layers could be successfully produced and collected. Assembly using these pills was performed and showed improved recess filling yields over the non-magnetic assembly, though more investigation needs to be done. MASA was shown to offer promise as a viable and promising technique for mixed device integration.
by James Michael Perkins.
S.M.
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Rumpler, Joseph John 1976. "Optoelectronic integration using the magnetically assisted statistical assembly technique : initial magnetic characterization and process development." Thesis, Massachusetts Institute of Technology, 2002. http://hdl.handle.net/1721.1/32714.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2002.
Includes bibliographical references (p. 99-101).
The commercial integration of optoelectronic devices heavily relies on hybrid techniques such as wire bonding and flip-chip bonding. These methods are limited in the scale and flexibility in integration. Research focused on optoelectronic integration is performed using numerous techniques such as direct epitaxy, full-scale wafer bonding, and self-assembly. Magnetically Assisted Statistical Assembly (MASA) is an example of the latter technique and improves scale and flexibility by enabling the simultaneous integration of large numbers of individual devices. This thesis work is focused on the demonstration of the MASA concept through characterization of the magnetic materials forming the foundation for this technique and development of an adequate process technology. Both, the magnetic characteristics and the process technology required to integrate the technology are presented along with results of the integration.
by Joseph John Rumpler, II.
S.M.
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Heinz, Adrian. "Algorithms and software systems for learning and research." CardinalScholar 1.0, 2009. http://liblink.bsu.edu/uhtbin/catkey/1536758.

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Software systems have experienced an impressive growth in the last few decades and have impacted a wide variety of areas. In this respect, two elds bene t greatly. Learning and research. In this work, we present several software systems that we have created to assist in the process of learning and to help researchers by performing complex computations and generating data. We demonstrate three web-based educational video games that we developed to teach science to middle school students. We also describe several software systems that we created for research in graph theory and model checking. Finally, we discuss our results, contributions and future directions.
Educational perspectives -- Graph algorithms and their applications -- E-learning -- Model checking.
Educational perspectives -- Graph algorithms and their applications -- E-learning -- Model checking.
Department of Computer Science
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Hedayati, Mohammad Hadi. "Visualization of microprocessor execution in computer architecture courses: a case study at Kabul University." Thesis, University of the Western Cape, 2010. http://etd.uwc.ac.za/index.php?module=etd&action=viewtitle&id=gen8Srv25Nme4_4960_1362394106.

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Computer architecture and assembly language programming microprocessor execution are basic courses taught in every computer science department. Generally, however, students have 
difficulties in mastering many of the concepts in the courses, particularly students whose first language is not English. In addition to their difficulties in understanding the purpose of given 
instructions, students struggle to mentally visualize the data movement, control and processing operations. To address this problem, this research proposed a graphical visualization approach 
and investigated the visual illustrations of such concepts and instruction execution by implementing a graphical visualization simulator as a teaching aid. The graphical simulator developed during the course of this research was applied in a computer architecture course at Kabul University, Afghanistan. Results obtained from student evaluation of the simulator show significant 
levels of success using the visual simulation teaching aid. The results showed that improved learning was achieved, suggesting that this approach could be useful in other computer science departments in Afghanistan, and elsewhere where similar challenges are experienced.

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Cojocaru, Vlad. "Molecular motions at the 5 stem-loop of U4 snRNA: Implications for U4/U6 snRNP assembly." Doctoral thesis, [S.l.] : [s.n.], 2005. http://webdoc.sub.gwdg.de/diss/2005/cojocaru.

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Mattsson, Gustav, and Marcus Hogler. "An explorative study in the user experience of augmented reality enhanced manuals." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-230125.

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Augmented reality has been shown to increase the effectiveness of assembly tasks in several studies related to industrial applications, throughout the existence of the technology. With the availability of smartphones and the recent release of mobile applications utilizing augmented reality, the concept of augmented reality assisted assembly can be applied to domestic use as well. This study aims to examine the user experience of such an application to better understand the its future potential. The application was made specifically for this study with 3D animations showing each step on how to assemble a drawer for the Ikea Hemnes 8 drawer dresser. The results consists of qualitative measurements of user experience and quantitative data of task success in the form of a time measurement and a count of the number of mistakes each participant did. Additional feedback was received from a post test interview. An experimental group of eight people used the application together with the printed manual and their results were compared to an equally sized control group using only the printed manual. The participants were generally positive to the looks, functionality and usability of the application which was reflected in their experience, but no significant improvement in Task Success could be obtained. There is however no observed negative consequences of the introduction of augmented reality to the domestic assembly task, and the future potential based on user experience is deemed satisfactory.
Förstärkt verklighet (AR) har visat sig öka effektiviteten av monteringsuppgifter i flera studier relaterade till industriella applikationer, ända sedan tekniken var helt ny. Med dagens tillgång till smartphones och de nyligen lanserade mobila applikationerna som utnyttjar AR kan konceptet med AR-assisterad montering även tillämpas för hemmabruk. Denna studie syftar till att undersöka användarupplevelsen av en sådan applikation för att bättre förstå dess framtida potential. Appen utvecklades specifikt för denna studie med 3D-animationer som visar varje steg på hur man monterar en låda för en Ikea Hemnes byrå med 8 lådor. Resultaten består av kvalitativa mätningar av användarupplevelse och kvantitativ data om effektivitet i form av en tidsmätning och antal misstag som varje deltagare gjorde. Ytterligare återkoppling mottogs från en intervju som hölls efter experimentet. En experimentell grupp bestående av åtta personer använde applikationen tillsammans med den tryckta manualen och deras resultat jämfördes med en lika stor kontrollgrupp med endast den tryckta manualen. Deltagarna var generellt positiva till applikationens utseende, funktionalitet och användbarhet, vilket återspeglades i deras användarupplevelse, men ingen signifikant förbättring av effektivitet kunde erhållas. Det finns emellertid inga observerade negativa följder av införandet av AR i monteringsuppgifter för hemmabruk, och den framtida potentialen baserad på användarupplevelse anses vara tillfredsställande.
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陳志雄 and Chi-hown Johnny Chan. "Implementation of computer simulation software in learning low-level computer language: a case study." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2001. http://hub.hku.hk/bib/B31256120.

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Shoaib, Rao Mohammad 1960. "Meta assembler and emulator for the Intel 8086 microprocessor." Thesis, The University of Arizona, 1989. http://hdl.handle.net/10150/276966.

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The thesis describes a Universal meta cross assembler and an emulator for the Intel 8086 microprocessor. The utility is designed to be used as an instructional tool to teach assembly language programming to students. One implementation is available to allow students to run Intel 8086 programs on the university's vax mainframe, so that students can test their programs at their convenience. This setup also results in low operating costs with no additional equipment requirements. Several options are provided in the emulator to debug the 8086 assembly language programs composed by students. The assembler, besides generating Intel 8086 machine code, has the capability to generate machine code for a number of microprocessors or microcontrollers. The machine code file generated by the assembler is the input to the emulator. Both the assembler and the emulator are completely portable and can be recompiled to run on any system with a standard C compiler.
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Nishihara, Anderson. "Montagem assistida por realidade aumentada (A3R)." Universidade de São Paulo, 2016. http://www.teses.usp.br/teses/disponiveis/3/3152/tde-28092016-105248/.

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Processos de montagem em geral necessitam de instruções para serem executados, desde a montagem de simples brinquedos até máquinas complexas. Tradicionalmente, essas instruções vem na forma de manuais em papel ou meio digital. Seja qual for o modo, os manuais de instruções utilizam desenhos, diagramas ou fotos, além de instruções textuais para indicar a sequência de montagem do início até o estado final. Procurando mudar esse paradigma, esse trabalho propõe um sistema para auxílio à montagem que utiliza realidade aumentada para guiar o usuário no processo. Através de processamento de imagens capturadas por uma câmera o sistema reconhece cada peça e por meio de sinais gráficos é indicado ao usuário qual a peça a ser manipulada e onde deve ser posicionada. Em seguida é feito a verificação do posicionamento das peças e o usuário é alertado quando a tarefa de montagem atinge o estado final. Muitos trabalhos na área utilizam algum tipo de dispositivo customizado como \"head mounted display\" (HMD) e marcadores para auxiliar o rastreamento da câmera e identificação das peças, limitando a popularização dessa tecnologia. Tendo esse último ponto em vista, propõe-se um sistema que não utiliza qualquer dispositivo customizado ou marcadores para rastreamento. Além disso, todos os processos do sistema são executados em software embarcado, não necessitando de comunicação com outros computadores para o processamento de imagens. Como o sistema não faz uso de marcadores para a identificação das peças, inicialmente é proposto a implementação do sistema para guiar o usuário na resolução de um quebra-cabeças plano. O sistema proposto é denominado como MARA (Montagem Assistida por Realidade Aumentada).
Assembly processes for simple toys or complex machines usually requires instructions to be executed. Traditionally, these instructions are written in the form of paper or digital manuals. These manuals contains descriptive text, photos or diagrams to guide the assembly sequence from the beginning to the final state. To change this paradigm, it is proposed in this work an augmented reality system to guide assembly tasks. The system recognizes each assembly piece through image processing techniques and guides the piece placement with graphic signals. Later, the system checks if the pieces are properly assembled and warns the user when the assembly have been finished. In the field of assembly assisted by augmented reality systems, many works use some kind of customized device, like head mounted displays (HMD). Furthermore, markers have been used to track camera position and identify assembly parts. These two features restrict the spread of the technology, thus in the proposed work customized devices and markers to track and identify parts shall not be used. Besides, all the processing are executed on embedded software without the need of communication with other computers to help image processing. The first implementation of the proposed system assists the user on the assembly of a planar puzzle, as the proposed system do not use markers to recognize assembly pieces. This system is being called A3R (Assembly Assisted by Augmented Reality).
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Books on the topic "Computer assisted assembly"

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Germany) HGTB-Fachtagung (11th 1999 Rostock. Mensch-Maschine-Interaktion: Arbeiten und Lernen in rechnergestützten Arbeitssystemen in Industrie, Handwerk und Dienstleistung : Beiträge und Ergebnisse der 11. HGBT-Fachtagung. Baden-Baden: Nomos, 2001.

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Overbeek, Ross A. Assembler language with ASSIST and ASSIST/I. 4th ed. New York: Macmillan, 1991.

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Overbeek, Ross A. Assembler language with ASSIST and ASSIST/I. 3rd ed. Chicago: Science Research Associates, 1986.

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IBM 370 assembly language with ASSIST, structured concepts, and advanced topics. Englewood Cliffs, N.J: Prentice-Hall, 1988.

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Office, General Accounting. International trade: Export of wood products under federally assisted export programs : report to the chairman, Subcommittee on Regulation, Business Opportunity, and Energy, Committee on Small Business, House of Representatives. Washington, D.C: The Office, 1990.

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Overbeek and Singletary. Assembler Language with Assist and Assist 1, Fourth Edition. 4th ed. Prentice Hall, 1990.

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Overbeek and Singletary. Assembler Language with Assist and Assist 1, Fourth Edition. Prentice Hall, 1990.

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Delchambre, A. CAD Method for Industrial Assembly: Concurrent Design of Products, Equipment and Control Systems. Wiley, 1997.

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A, Delchambre, ed. CAD method for industrial assembly: Concurrent design of products, equipment, and control systems. Chichester: Wiley, 1996.

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Office, General Accounting. International trade: Export of wood products under federally assisted export programs : report to the chairman, Subcommittee on Regulation, Business Opportunity, and Energy, Committee on Small Business, House of Representatives. Washington, D.C: The Office, 1990.

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Book chapters on the topic "Computer assisted assembly"

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Petruck, Henning, and Alexander Mertens. "Using Convolutional Neural Networks for Assembly Activity Recognition in Robot Assisted Manual Production." In Lecture Notes in Computer Science, 381–97. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-91244-8_31.

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Jalendra, Chetan, B. K. Rout, and A. M. Marathe. "Residual Vibration Suppression of Non-deformable Object for Robot-Assisted Assembly Operation Using Vision Sensor." In Intelligent Learning for Computer Vision, 539–51. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-33-4582-9_42.

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Boston, Brett, Samuel Breese, Joey Dodds, Mike Dodds, Brian Huffman, Adam Petcher, and Andrei Stefanescu. "Verified Cryptographic Code for Everybody." In Computer Aided Verification, 645–68. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-81685-8_31.

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Abstract We have completed machine-assisted proofs of two highly-optimized cryptographic primitives, AES-256-GCM and SHA-384. We have verified that the implementations of these primitives, written in a mix of C and x86 assembly, are memory safe and functionally correct, by which we mean input-output equivalent to their algorithmic specifications. Our proofs were completed using SAW, a bounded cryptographic verification tool which we have extended to handle embedded x86. The code we have verified comes from AWS LibCrypto. This code is identical to BoringSSL and very similar to OpenSSL, from which it ultimately derives. We believe we are the first to formally verify these implementations, which protect the security of nearly everybody on the internet.
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Ilnytskyi, Jaroslav. "Self-Assembly of Nanoparticles Decorated by Liquid Crystalline Groups: Computer Simulations." In Self-Assembly of Nanostructures and Patchy Nanoparticles. IntechOpen, 2020. http://dx.doi.org/10.5772/intechopen.89682.

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We present the results of the computer simulations for the self-assembly of decorated nanoparticles. The models are rather generic and comprise a central core and a shell of ligands containing terminal liquid crystalline group, including the case of the azobenzene chromophores. The simulations are performed using the coarse-grained molecular dynamics with the effective soft-core interparticle interaction potentials obtained from the atomistic simulations. The discussion is centred around the set of the self-assembled morphologies in a melt of 100–200 of such decorated nanoparticles obtained upon the change of the temperature, surface density of ligands, the type of the terminal group attachment, as well as the prediction of the possibility of photo-assisted self-assembly of the nanoparticles decorated by the azobenzene chromophores.
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Xu, Xun. "Computer-Aided Process Planning and Manufacturing." In Integrating Advanced Computer-Aided Design, Manufacturing, and Numerical Control, 54–74. IGI Global, 2009. http://dx.doi.org/10.4018/978-1-59904-714-0.ch003.

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Products and their components are designed to perform certain functions. Design specifi- cations ensure the functionality aspects. The task in manufacturing is then to produce the components that meet the design specifications. The components are in turn assembled into the final products. When computers are used to assist the process planning and manufacturing activities, multiple benefits can be had. The related technologies are known as computer-aided process planning and computer-aided manufacturing. Often, they are not separable and are therefore discussed in tandem in this chapter. It should be emphasized that process planning is not only for metal-cutting processes. We need process planning for many other manufacturing processes such as casting, forging, sheet metal forming, compositesz and ceramic fabrication. In this chapter, the basic steps of developing a process plan are explained. There are two approaches to carrying out process planning tasks—manual experience-based method and computer-aided process planning method. The focus is on two computer-aided process planning methods, the variant approach, and generative approach. These discussions on process planning have been limited to machining processes. The topic of computer-aided manufacturing, on the other hand, is discussed with a more general point of view. A fictitious CAM plant is presented and some of the key aspects of CAM in a manufacturing system are discussed. A more specific version of CAM (i.e. computer numerical control) will be covered in Chapters VIII and IX.
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Conference papers on the topic "Computer assisted assembly"

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Miller, M. D., C. P. Kosta, and P. D. Krolak. "Computer assisted robotic assembly." In the first international conference. New York, New York, USA: ACM Press, 1988. http://dx.doi.org/10.1145/55674.55731.

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Thondavadi, Nandu N., Todd Ferguson, Howard J. Lucas, and Robert Benson. "An Interactive Animated Simulation of an AGV Assisted Assembly System." In Computer Graphics Conference and Exposition. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 1987. http://dx.doi.org/10.4271/870900.

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Mueller, Rainer, Matthias Vette-Steinkamp, Leenhard Hoerauf, Christoph Speicher, and Attique Bashir. "Intelligent and Flexible Worker Assistance Systems - Assembly Assistance Platform for Planning Assisted Assembly and Rework as Well as Execution of a Worker-Centered Assistance." In International Conference on Human Computer Interaction Theory and Applications. SCITEPRESS - Science and Technology Publications, 2018. http://dx.doi.org/10.5220/0006613900770085.

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Piya, Cecil, and Karthik Ramani. "Proto-TAI: Quick Design Prototyping Using Tangible Assisted Interfaces." In ASME 2014 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/detc2014-35442.

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In the real world, we use our innate manual dexterity to create and manipulate 3D objects. Conventional virtual design tools largely neglect this skill by imposing non-intuitive 2D control mechanisms for interacting with 3D design models. Their usage is thus cumbersome, time consuming and requires training. We propose a novel design paradigm that combines users’ manual dexterity with the physical affordances of non-instrumented and ordinary objects to support virtual 3D design constructions. We demonstrate this paradigm through Proto-TAI, a quick prototyping application where 2D shapes are assembled into 3D representations of ideated design concepts. Here, users can create 2D shapes in a pen-based sketch medium and use expressive handheld movements of a planar proxy to configure the shapes in 3D space. The proxy provides a metaphorical means for possessing and controlling the shapes. Here, a depth sensor and computer vision algorithms track the proxy’s spatial movement. The 3D design prototype constructed in our system can be fabricated using a laser cutter and physically assembled on-the-fly. Our system has vast implications in many design and assembly contexts, and we demonstrate its usability and efficacy through user studies and evaluations.
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Sundaram Karibeeran, Shanmuga, M. Prakash, Ramachandiran Alaguraja, and Muruganandhan Radhakrishnan. "Computer Assisted Design and Analysis of Shedding Mechanism of Powerloom Machineries." In ASME 2015 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/imece2015-51277.

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Cloth has always been the most worldwide of all imported and exported commodities. It is an enlightening example of the movement of knowledge, skills, goods and investment across wide geographic seats. South Asia has been dominant for making of these worldwide interactions over period. This capacity grants advanced research that discovers the dynamic ways in which various textile production and trade regions generated the ‘first globalization’. A series of specialists connect this worldwide commodity with the dramatic political and economic alterations that characterised the India in the recent centuries. Together, the papers transform our understanding of the contribution of South Asian cloth, specifically Indian cloth to make the modern world economy. India is the largest share of its exports being textiles and apparels to the world. Also weaving is second only to agriculture sector in terms of providing employment in India. This paper a simple spreadsheet program method of calculations for the complete kinematics and dynamic analysis of the shedding mechanism of the classical powerloom is presented. Shedding is one of the important processes used in weaving technology of textile machineries. Most of the powerlooms of India uses staubli’s M5 module for shedding. These modules are activated through the traditional slider-crank mechanism. The source energy for these modules is through electric motor coupled with clutch and resulting output is shedding action of warp threads of cloth. Objective of this work is to address the kinematics and Dynamics simulation of linkage assembly of shedding mechanism of textile machinery considering all the links of the model as rigid one. Also this paper examines the effect of dynamic forces on various joints of conventional kinematic model. Subsequently the optimisation of mechanism is carried out by varying the design factor ratio of the slider crank mechanism. Length of connecting rod to radius of the crank shaft has been taken into account for defining design factor ratio for the analysis. Altered varieties of models having various design factors are modeled using 3D modeling package Solidworks. Simulation test results and force analysis of these models were carried out using ADAMS. Being a single degree of freedom mechanism as defined by its crank angle, the spreadsheet program can be used to answer what - if? situation queries through tables and graphical plots to evaluate variations of key motion and loading parameters with changes in the design factor. Thus, it allows for the conduct of parameter studies in selecting optimum crank-and-connecting-rod linkage dimensions and speeds. Thus, this work provides an alternative solution and scope for further research in shedding mechanism’s simulation analysis.
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Beach, D. A., and D. C. Anderson. "A Computer Environment for Realistic Assembly Design." 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/cie-1336.

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Abstract Described is an object-oriented assembly model that is formulated based on the needs of 3D graphical interaction, information needed for assemblability analysis, and principles of kinematics. The user interface provides real-time interaction with dual part representations, consisting of both feature and solid models, for building and modifying an assembly. Parts are moved and assembled in a realistic 3D environment. The system assists the user in creating attachments between parts in a “drag and drop” manner by dynamically displaying potential mating conditions based on location and alignment proximity.
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Behandish, Morad, and Horea T. Ilieş. "Haptic Assembly Using Skeletal Densities and Fourier Transforms." In ASME 2015 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/detc2015-47923.

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Haptic-assisted virtual assembly and prototyping has seen significant attention over the past two decades. However, in spite of the appealing prospects, its adoption has been slower than expected. We identify the main roadblocks as the inherent geometric complexities faced when assembling objects of arbitrary shape, and the computation time limitation imposed by the notorious 1 kHz haptic refresh rate. We solved the first problem in a recent work by introducing a generic energy model for geometric guidance and constraints between features of arbitrary shape. In the present work, we address the second challenge by leveraging Fourier transforms to compute the constraint forces and torques. Our new concept of ‘geometric energy’ field is computed automatically from a cross-correlation of ‘skeletal densities’ in the frequency domain, and serves as a generalization of the manually specified virtual fixtures or heuristically identified mating constraints proposed in the literature. The formulation of the energy field as a convolution enables efficient computation using GPU-accelerated Fast Fourier Transforms (FFT). We show that our method is effective for low-clearance assembly of objects of arbitrary geometric and syntactic complexity.
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Zhang, Yahui, Howard Chen, and Ibrahim T. Ozbolat. "Characterization of Printable Micro-Fluidic Channels for Organ Printing." In ASME 2012 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/imece2012-85622.

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Organ printing is a complex and challenging process in execution due to the lack of fundamental understanding of tissue and organ formation, and problems associated with giving the organ-conforming 3D shapes. One of the major challenges is the inclusion of blood vessel-like channels between layers to support cell viability in terms of nutrients and oxygen transport. Tissue scaffolds have been widely used in generation of replacement tissue by providing mechanical support and fluid nutrients, but complications with scaffold degradation and the corresponding adverse effects on extra cellular matrix still present major challenges. This paper introduces a new approach in tissue scaffolding for cellular assembly to minimize these problems. This research investigates the manufacturability of novel printable micro-fluidic channels, where the micro-fluidic channels support mechanical integrity as well as enable fluid transport in 3D. A pressure-assisted solid freeform fabrication platform is developed with co-axial needle dispenser unit to print hollow hydrogel filaments, which will later be used to support nutrients and oxygen transport through the printed cell assembly. The dispensing rheology is studied and the effect of material property on structural formation of hollow filaments is analyzed in this paper. Sample structures are printed through the computer-controlled system. In experiments with sodium alginate, 4% CaCI2-4% alginate solution combination results in the smallest core and filament diameter. In experiments with chitosan on the other hand, 3% chitosan-1% NaOH combination brings the smallest core and filament diameter.
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Wang, Eric, and Yong Se Kim. "Feature-Based Assembly Mating Reasoning." 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/cie-1341.

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Abstract It is desirable to provide computer-based tools to assist designers and manufacturing engineers in the difficult task of geometric reasoning to achieve fast product development and flexible manufacturing. In the domain of assembly reasoning and planning, numerous methods have been developed to analyze a user-specified assembly configuration of parts. Fewer efforts have been made to systematically obtain the assembly configuration itself from underlying information. As a step in this direction, we present an assembly mating reasoning method that determines feasible assembly configurations directly from part geometry. Our method recognizes form features from the boundary representations of the components, then treats the form features as assembly features and identifies mating relations between them. Assembly configurations are constructed by using Boolean operations on the components to simulate the assembly process. A heuristic backtracking search is used to traverse the space of feasible component assembly operations. The result of the search is an enumeration of feasible assembly configurations.
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Miller, Alec R., and Raymond J. Cipra. "Simulation of Automated Robotic Assembly." In ASME 1995 Design Engineering Technical Conferences collocated with the ASME 1995 15th International Computers in Engineering Conference and the ASME 1995 9th Annual Engineering Database Symposium. American Society of Mechanical Engineers, 1995. http://dx.doi.org/10.1115/detc1995-0090.

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Abstract This paper examines the development of a networked simulation system. The Automated Robotic Manipulation (ARM) simulator is a central part of the network. This simulation tool currently assists with research and education into automated assembly. Robots, fixtures, conveyors, and parts create an automated assembly cell which is used to test advanced manufacturing software. ARM animates models of these physical components and enhances them with additional forms of three-dimensional graphical visualization. The feasibility of automated assembly can rapidly be assessed from the visual content presented by the simulator. Input formats for ARM are flexible enough to support a wide range of assembly cells and activities. Files and network transmissions customize the simulator to a particular assembly cell and its activities. The emerging assembly data protocol promotes the development of a truly integrated manufacturing system. A graphical interface complete with multiple views assists assembly cell layout and activity review, and networked operations significantly expand its role to areas such as interactive robot control and assembly preview.
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