Mechanical Assembilies

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In Mechanical Assemblies: Their Design, Manufacture, and Role in Product Development , author Daniel E. Whitney draws on more than thirty years of academic and industry experience to fill this significant gap in the mechanical engineering curriculum. Assembly is the process by which parts become products that do useful things. It is therefore fundamental to the work of every mechanical engineer. Yet the design of assemblies and the process of assembling them are rarely taught in universities. The first book to develop a systematic approach to the modeling and design of assemblies, this text addresses the subject on two levels. Assembly in the Small develops a systematic theory for the design of assemblies with their functions in mind, starting from the basic principles of mechanical constraint and including methods for representing assemblies mathematically. In addition, important assembly analysis techniques such as predicting variation and generating assembly sequences are covered using a consistent mathematical formulation. Assembly in the Large deals with the role of assemblies in product development, including product architecture, design for assembly, and manufacturing strategy, as well as design and evaluation of assembly processes and systems. Key Features Places the design of assemblies in the context of product architecture and industry demand for numerous product models and versions with short delivery times. Describes methods of designing assembly workstations and systems. Includes numerous examples from the automobile, aircraft, and consumer product industries. Provides several computer programs that illustrate principles in the book Utilizes MATLAB for calculations related to assembly systems A CD packaged with the book contains appendixes to the book and software that accompanies the exercises and examples in the text.

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Daniel E. Whitney is Senior Research Scientist and Senior Lecturer in the Engineering Systems Division and Lecturer in Mechanical Engineering at the Massachusetts Institute of Technology (MIT). Table of Contents 1. What is Assembly and Why is it Important? 2. Assembly Requirements and Key Characteristics 3. Mathematical and Feature Models of Assemblies 4. Constraint in Assembly 5. Dimensioning and Tolerancing Parts and Assemblies 6. Modeling and Managing Variation Buildup in Assemblies 7. Assembly Sequence Analysis 8. The Datum Flow Chain 9. Assembly Gross and Fine Motions 10. Assembly of Compliantly Supported Rigid Parts 11. Assembly of Compliant Parts 12. Assembly in the Large: The Impact of Assembly on Product Development 13. How To Analyze Existing Products in Detail 14. Product Architecture 15. Design for Assembly and Other Ilities 16. Assembly System Design 17. Assembly Workstation Design Issues 18. Economic Analysis of Assembly Systems 19. Case Study of Aircraft Wing Manufacture