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Author : Dwight DeDoncker
Publisher :
ISBN 13 :
Total Pages : 6 pages
Book Rating : 4.:/5 (456 download)
Download or read book Assembly Tolerance Analysis with Simulation and Optimization Techniques written by Dwight DeDoncker and published by . This book was released on 1987 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Sairam V. Pamulapati
Publisher :
ISBN 13 :
Total Pages : 160 pages
Book Rating : 4.:/5 (383 download)
Download or read book Computer Aided Tolerance Analysis and Process Selection for AutoCAD written by Sairam V. Pamulapati and published by . This book was released on 1997 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt: The fundamental objective of a design engineer in performing tolerance technology is to transform functional requirements into tolerances on individual parts based on existing data and algorithms for design tolerance analysis and synthesis. The transformation of functional requirements into tolerances must also consider the existing process capabilities and manufacturing costs to determine the optimal tolerances and processes. The main objective of this research is to present an integrated but modular system for Computer Aided Tolerance Allocation, Tolerance Synthesis and Process Selection. The module is implemented in AutoCAD using the ARX 1.1 (AutoCAD Runtime Extension Libraries), MFC 4.2, Visual C++ 4.2, Access 7.0, AutoCAD Development System, AutoLISP, and Other AutoCAD Customization tools. The integrated module has two functions: a. Tolerance analysis and allocation: This module uses several statistical and optimization techniques to aggregate component tolerances. Random number generators are used to simulate historical data used by most of the optimization techniques to perform tolerance analysis. Various component tolerance distributions are considered (Beta, Normal, and Uniform). The proposed analysis technique takes into consideration the distribution of each fabrication of the component, this provides designers . The proposed tolerance analysis method takes into consideration the distribution of each fabrication process of the assembly. For assemblies with non-normal natural process tolerance distributions, this method allows designers to assign assembly tolerances that are closer to actual assembly tolerances when compared to other statistical methods. This is verified by comparing the proposed tolerance analysis method to the results of Monte Carlo simulations. The method results in assembly tolerances similar to those provided by Monte Carlo simulation yet is significantly less computationally-intensive. b. Process Selection: This thesis introduces a methodology for concurrent design that considers the allocation of tolerances and manufacturing processes for minimum cost. This methodology brings manufacturing concerns into the design process. A simulated annealing technique is used to solve the optimization problem. Independent, unordered, manufacturing processes are assumed for each assembly. The optimization technique uses Monte Carlo simulation. A simulated annealing technique is used to control the Monte Carlo analysis. In this optimization technique, tolerances are allocated using the cost-tolerance curves for each of the individual components. A cost-tolerance curve is defined for each component part in the assembly. The optimization algorithm varies the tolerance for each component and searches systematically for the combination of tolerances that minimizes the cost. The proposed tolerance allocation/process selection method was found to be superior to other tolerance allocation methods based on manufacturing costs.
Author : Fred van Houten
Publisher : Springer Science & Business Media
ISBN 13 : 9401717052
Total Pages : 448 pages
Book Rating : 4.4/5 (17 download)
Download or read book Global Consistency of Tolerances written by Fred van Houten and published by Springer Science & Business Media. This book was released on 2013-04-17 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contains selected contributions from the 6th CIRP International Seminar on Computer-Aided Tolerancing, which was held on 22-24 March, 1999, at the University of Twente, Enschede, The Netherlands. This volume presents the theory and application of consistent tolerancing. Until recently CADCAM systems did not even address the issue of tolerances and focused purely on nominal geometry. Therefore, CAD data was only of limited use for the downstream processes. The latest generation of CADCAM systems incorporates functionality for tolerance specification. However, the lack of consistency in existing tolerancing standards and everyday tolerancing practice still lead to ill-defined products, excessive manufacturing costs and unexpected failures. Research and improvement of education in tolerancing are hot items today. Global Consistency of Tolerances gives an excellent overview of the recent developments in the field of Computer-Aided Tolerancing, including such topics as tolerance specification; tolerance analysis; tolerance synthesis; tolerance representation; geometric product specification; functional product analysis; statistical tolerancing; education of tolerancing; computational metrology; tolerancing standards; and industrial applications and CAT systems. This book is well suited to users of new generation CADCAM systems who want to use the available tolerancing possibilities properly. It can also be used as a starting point for research activities.
Author : Hwaiyu Geng
Publisher : McGraw Hill Professional
ISBN 13 : 0071501045
Total Pages : 1193 pages
Book Rating : 4.0/5 (715 download)
Download or read book Manufacturing Engineering Handbook written by Hwaiyu Geng and published by McGraw Hill Professional. This book was released on 2004-07-13 with total page 1193 pages. Available in PDF, EPUB and Kindle. Book excerpt: Let our teams of experts help you to stay competitive in a global marketplace. It is every company's goal to build the highest quality goods at the lowest price in the shortest time possible. With the Manufacturing Engineering Handbook you'll have access to information on conventional and modern manufacturing processes and operations management that you didn't have before. For example, if you are a manufacturing engineer responding to a request for proposal (RFP), you will find everything you need for estimating manufacturing cost, labor cost and overall production cost by turning to chapter 2, section 2.5, the manufacturing estimating section. The handbook will even outline the various manufacturing processes for you. If you are a plant engineer working in an automotive factory and find yourself in the hot working portion of the plant, you should look up section 6 on hot work and forging processing. You will find it very useful for learning the machines and processes to get the job done. Likewise, if you are a Design Engineer and need information regarding hydraulics, generators & transformers, turn to chapter 3, section 3.2.3, and you’ll find generators & transformers. Covering topics from engineering mathematics to warehouse management systems, Manufacturing Engineering Handbook is the most comprehensive single-source guide to Manufacturing Engineering ever published.
Author : Max Giordano
Publisher : John Wiley & Sons
ISBN 13 : 1118587529
Total Pages : 389 pages
Book Rating : 4.1/5 (185 download)
Download or read book Product Life-Cycle Management written by Max Giordano and published by John Wiley & Sons. This book was released on 2012-12-17 with total page 389 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book gives a comprehensive view of the most recent major international research in the field of tolerancing, and is an excellent resource for anyone interested in Computer Aided Tolerating. It is organized into 4 parts. Part 1 focuses on the more general problems of tolerance analysis and synthesis, for tolerancing in mechanical design and manufacturing processes. Part 2 specifically highlights the simulation of assembly with defects, and the influence of tolerances on the quality of the assembly. Part 3 deals with measurement aspects, and quality control throughout the life cycle. Different measurement technologies and methods for estimating uncertainty are considered. In Part 4, different aspects of tolerancing and their interactions are explored, from the definition of functional requirement to measurement processes in a PLM approach.
Author : Fumihiko Kimura
Publisher : Springer Science & Business Media
ISBN 13 : 9400915292
Total Pages : 339 pages
Book Rating : 4.4/5 (9 download)
Download or read book Computer-aided Tolerancing written by Fumihiko Kimura and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 339 pages. Available in PDF, EPUB and Kindle. Book excerpt: Theory and practice of tolerances are very important for designing and manufacturing engineering artifacts on a rational basis. Tolerance specifies a degree of "discrepancy" between an idealized object and its physical realization. Such discrepancy inevitably comes into our product realization processes because of practical cost consideration or our inability to fully control manufacturing processes. Major product and production characteristics which are affected by tolerances are product quality and cost. For achieving high precision machines tight tolerance specification is necessary, but this will normally increase product cost. In order to optimally compromise the conflicting requirements of quality and cost, it is essential to take into account of the total product life cycle throughout product planning, design, manufacturing, maintenance and recycling. For example, in order to construct durable products under severe working conditions, low sensitivity of product functionality with respect to tolerances is required. In future, re-use of components or parts will become important, and tolerance synthesis with respect to this aspect will be an interesting future research topics.
Author : Shkelzen Cakaj
Publisher : BoD – Books on Demand
ISBN 13 : 9533070560
Total Pages : 316 pages
Book Rating : 4.5/5 (33 download)
Download or read book Modeling Simulation and Optimization written by Shkelzen Cakaj and published by BoD – Books on Demand. This book was released on 2010-04-01 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt: Parametric representation of shapes, mechanical components modeling with 3D visualization techniques using object oriented programming, the well known golden ratio application on vertical and horizontal displacement investigations of the ground surface, spatial modeling and simulating of dynamic continuous fluid flow process, simulation model for waste-water treatment, an interaction of tilt and illumination conditions at flight simulation and errors in taxiing performance, plant layout optimal plot plan, atmospheric modeling for weather prediction, a stochastic search method that explores the solutions for hill climbing process, cellular automata simulations, thyristor switching characteristics simulation, and simulation framework toward bandwidth quantization and measurement, are all topics with appropriate results from different research backgrounds focused on tolerance analysis and optimal control provided in this book.
Author :
Publisher :
ISBN 13 :
Total Pages : 1028 pages
Book Rating : 4.3/5 (91 download)
Download or read book Proceedings of the ... Design Engineering Technical Conferences written by and published by . This book was released on 1995 with total page 1028 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Hoda A. ElMaraghy
Publisher : Springer Science & Business Media
ISBN 13 : 1461557976
Total Pages : 468 pages
Book Rating : 4.4/5 (615 download)
Download or read book Geometric Design Tolerancing: Theories, Standards and Applications written by Hoda A. ElMaraghy and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt: The importance of proper geometric dimensioning and tolerancing as a means of expressing the designer's functional intent and controlling the inevitable geometric and dimensional variations of mechanical parts and assemblies, is becoming well recognized. The research efforts and innovations in the field of tolerancing design, the development of supporting tools, techniques and algorithms, and the significant advances in computing software and hardware all have contributed to its recognition as a viable area of serious scholarly contributions. The field of tolerancing design is successfully making the transition to maturity where deeper insights and sound theories are being developed to offer explanations, and reliable implementations are introduced to provide solutions. Machine designers realized very early that manufacturing processes do not produce the nominal dimensions of designed parts. The notion of associating a lower and an upper limit, referred to as tolerances, with each dimen sion was introduced. Tolerances were specified to ensure the proper function of mating features. Fits of mating features included clearances, location fits, and interference fits, with various sub-grades in each category assigned a tolerance value depending on the nominal size of the mating features. During the inspection process, a part is rejected if a dimension fell outside the specified range. As the accuracy requirements in assemblies became tighter, designers had to consider other critical dimensions and allocate tolerances to them in order to ensure the assembly's functionality.
Author : Clyde M. Creveling
Publisher : Prentice Hall
ISBN 13 :
Total Pages : 456 pages
Book Rating : 4.3/5 (91 download)
Download or read book Tolerance Design written by Clyde M. Creveling and published by Prentice Hall. This book was released on 1997 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt: Tolerance Design recognizes this development process as the responsibility of the entire team and provides practical solutions that each team member can readily apply. The step-by-step details of analytical and experimental tolerance development methods are clearly explained, and as a result, you will be able to develop tolerances more economically. The book is presented in four sections: Introductory topics to position the tolerance development process, Traditional Analytical and Computer-Aided Tolerance Development, Taguchis Approach to Experimental Methods of Tolerance Development, as well as several actual industrial case studies illustrating the books concepts. This book includes a major emphasis for Tolerance Design using Taguchis Quality Loss Function in harmony with Motorolas famous methods for Six Sigma quality. The blend of practical examples with substantive case studies provides a comprehensive process approach to tolerance development. Any company interested in properly developing tolerances for their manufacturing, assembly, or service communities will find this text to be a thorough and effective training resource and reference handbook. Students of design and engine
Author : Hong-Chao Zhang
Publisher : John Wiley & Sons
ISBN 13 : 9780471145943
Total Pages : 616 pages
Book Rating : 4.1/5 (459 download)
Download or read book Advanced Tolerancing Techniques written by Hong-Chao Zhang and published by John Wiley & Sons. This book was released on 1997-09-30 with total page 616 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the first book to provide a comprehensive coverage of new developments in geometric dimensional tolerancing and statistical tolerancing, and to focus on the use of these techniques in a CAD/CAM/CMM environment. The authors explore and explain tolerancing from its history and fundamentals to state-of-the-art techniques. They also describe specialized applications of tolerancing in particular industries, inclduing automobiles, electronics and aerospace.
Author : Svetan Ratchev
Publisher : Springer Nature
ISBN 13 : 3030726320
Total Pages : 370 pages
Book Rating : 4.0/5 (37 download)
Download or read book Smart Technologies for Precision Assembly written by Svetan Ratchev and published by Springer Nature. This book was released on 2021-04-01 with total page 370 pages. Available in PDF, EPUB and Kindle. Book excerpt: This open access book constitutes the refereed post-conference proceedings of the 9th IFIP WG 5.5 International Precision Assembly Seminar, IPAS 2020, held virtually in December 2020. The 16 revised full papers and 10 revised short papers presented together with 1 keynote paper were carefully reviewed and selected from numerous submissions. The papers address topics such as assembly design and planning; assembly operations; assembly cells and systems; human centred assembly; and assistance methods in assembly.
Author : Jack A. Collins
Publisher : John Wiley & Sons
ISBN 13 : 0470413034
Total Pages : 922 pages
Book Rating : 4.4/5 (74 download)
Download or read book Mechanical Design of Machine Elements and Machines written by Jack A. Collins and published by John Wiley & Sons. This book was released on 2009-10-19 with total page 922 pages. Available in PDF, EPUB and Kindle. Book excerpt: Taking a failure prevention perspective, this book provides engineers with a balance between analysis and design. The new edition presents a more thorough treatment of stress analysis and fatigue. It integrates the use of computer tools to provide a more current view of the field. Photos or images are included next to descriptions of the types and uses of common materials. The book has been updated with the most comprehensive coverage of possible failure modes and how to design with each in mind. Engineers will also benefit from the consistent approach to problem solving that will help them apply the material on the job.
Author : Jerome Morio
Publisher : Woodhead Publishing
ISBN 13 : 0081001118
Total Pages : 217 pages
Book Rating : 4.0/5 (81 download)
Download or read book Estimation of Rare Event Probabilities in Complex Aerospace and Other Systems written by Jerome Morio and published by Woodhead Publishing. This book was released on 2015-11-16 with total page 217 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rare event probability (10-4 and less) estimation has become a large area of research in the reliability engineering and system safety domains. A significant number of methods have been proposed to reduce the computation burden for the estimation of rare events from advanced sampling approaches to extreme value theory. However, it is often difficult in practice to determine which algorithm is the most adapted to a given problem.Estimation of Rare Event Probabilities in Complex Aerospace and Other Systems: A Practical Approach provides a broad up-to-date view of the current available techniques to estimate rare event probabilities described with a unified notation, a mathematical pseudocode to ease their potential implementation and finally a large spectrum of simulation results on academic and realistic use cases. Provides a broad overview of the practical approach of rare event methods. Includes algorithms that are applied to aerospace benchmark test cases Offers insight into practical tuning issues
Author : Charles G. Glancy
Publisher :
ISBN 13 :
Total Pages : 128 pages
Book Rating : 4.:/5 (367 download)
Download or read book A Second-order Method for Assembly Tolerance Analysis written by Charles G. Glancy and published by . This book was released on 1994 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Sandro Wartzack
Publisher : Springer Nature
ISBN 13 : 3031642252
Total Pages : 280 pages
Book Rating : 4.0/5 (316 download)
Download or read book Research in Tolerancing written by Sandro Wartzack and published by Springer Nature. This book was released on with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Paolo Renna
Publisher : MDPI
ISBN 13 : 3039439618
Total Pages : 96 pages
Book Rating : 4.0/5 (394 download)
Download or read book Design and Optimization of Production Lines written by Paolo Renna and published by MDPI. This book was released on 2021-01-27 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is dedicated to the latest findings on the design and optimization of production lines. The “Fourth Industrial Revolution” (alternatively known as “Industry 4.0”) supports innovative models for energy consumption and fault tolerance in automated lines, and this drives changes in the design and optimization models of production lines. The goal is to collect a series of works that can summarize the latest trends in the field of production line optimization models in order to improve the responsiveness of automated lines to failures, reduce energy consumption and peak electricity demand, and develop other methods to support robust and sustainable production lines.
