Mechanical Design.
Başlık:
Mechanical Design.
Yazar:
Maekawa, K.
ISBN:
9780080473420
Yazar Ek Girişi:
Basım Bilgisi:
2nd ed.
Fiziksel Tanımlama:
1 online resource (373 pages)
İçerik:
front cover -- copyright -- table of contents -- front matter -- Preface -- About the author -- Acknowledgements -- body -- 1 Design -- 1.1 Introduction -- 1.2 The design process -- 1.2.1 Case study -- 1.3 Total design -- 1.4 Product design specification -- 1.5 Conceptual design -- 1.5.1 Boundary shifting -- 1.5.2 Brain-storming -- 1.5.3 Morphological analysis -- 1.5.4 Function trees -- 1.6 The technology base -- 1.7 Conclusions -- 2 Mechanical engineering -- 2.1 Introduction -- 2.2 Thermodynamics -- 2.2.1 Fluid mechanics -- 2.2.2 Heat transfer -- 2.3 Mechanics -- 2.4 Materials -- 2.4.1 Metals -- 2.4.2 Polymers and elastomers -- 2.4.3 Ceramics and glasses -- 2.4.4 Composites -- 2.5 Conclusions -- 3 Machine elements -- 3.1 Introduction -- 3.2 Tribology -- 3.3 Bearings -- 3.4 Gears, belts and chains -- 3.5 Seals -- 3.6 Clutches and brakes -- 3.7 Springs -- 3.8 Fasteners -- 3.9 Enclosures -- 3.10 Conclusions -- 4 Bearings -- 4.1 Introduction -- 4.2 Sliding bearings -- 4.2.1 Lubricants -- 4.2.2 Design of boundary lubricated bearings -- 4.2.3 Design of full film hydrodynamic bearings -- 4.2.4 Alternative method for the design of full film hydrodynamic bearings -- 4.3 Rolling contact bearings -- 4.3.1 Bearing life and selection -- 4.3.2 Bearing installation -- 4.4 Conclusions -- 5 Shafts -- 5.1 Introduction -- 5.2 Shaft-hub connection -- 5.3 Shaft-shaft connection - couplings -- 5.4 Critical speeds and shaft deflection -- 5.4.1 Macaulay's method for calculating the deflection of beams -- 5.4.2 Castigliano's theorem for calculating shaft deflections -- 5.5 ASME design code for transmission shafting -- 5.6 Conclusions -- 6 Gears -- 6.1 Introduction -- 6.2 Construction of gear tooth profiles -- 6.3 Gear trains -- 6.3.1 Manually shifted automotive transmissions -- 6.3.2 Epicyclic gear trains -- 6.4 Tooth systems -- 6.5 Force analysis.
6.5.1 Introduction to gear stresses -- 6.5.2 Bending stresses -- 6.6 Simple gear selection procedure -- 6.7 Conclusions -- 7 Detailed gear stressing -- 7.1 Introduction -- 7.2 Wear failure -- 7.3 AGMA equations for bending and contact stress -- 7.4 Gear selection procedure -- 7.5 Conclusions -- 8 Belts and chain drives -- 8.1 Introduction -- 8.2 Belt drives -- 8.2.1 Belt selection -- 8.3 Chain drives -- 8.3.1 Roller chain selection -- 8.4 Conclusions -- 9 Seals -- 9.1 Introduction -- 9.2 Static seals -- 9.2.1 Elastomeric seal rings -- 9.2.2 Gaskets -- 9.2.3 Foodstuffs containers -- 9.3 Dynamics seals -- 9.3.1 Seals for rotating machinery -- 9.3.2 Seals for reciprocating components -- 9.4 Conclusions -- 10 Clutches and brakes -- 10.1 Introduction -- 10.2 Clutches -- 10.2.1 Design of disc clutches -- 10.3 Brakes -- 10.3.1 Disc brakes -- 10.3.2 Drum brakes -- 10.3.3 Short shoe external drum brakes -- 10.3.4 Long shoe external drum brakes -- 10.3.5 Long shoe internal drum brakes -- 10.3.6 Band brakes -- 10.4 Conclusions -- 11 Springs -- 11.1 Introduction -- 11.2 Helical compression springs -- 11.3 Helical extension springs -- 11.4 Helical torsion springs -- 11.5 Leaf springs -- 11.6 Belleville spring washers -- 11.7 Conclusions -- 12 Fastening and power screws -- 12.1 Introduction to permanent and non-permanent fastening -- 12.2 Threaded fasteners -- 12.3 Power screws -- 12.4 Rivets -- 12.5 Adhesives -- 12.6 Welding -- 12.7 Snap fasteners -- 12.8 Conclusions -- 13 Frames, casings and enclosures -- 13.1 Introduction -- 13.2 Designing to resist bending -- 13.3 Designing to resist torsion -- 13.4 Designing to provide adequate ventilation -- 13.5 Safety -- 13.6 Conclusions -- 14 Sensors and actuators -- 14.1 Introduction -- 14.2 Sensors -- 14.2.1 Position -- 14.2.2 Speed -- 14.2.3 Force -- 14.2.4 Torque -- 14.2.5 Temperature measurement -- 14.2.6 Pressure.
14.2.7 Fluid flow -- 14.3 Actuators -- 14.3.1 Pneumatics and hydraulics -- 14.3.2 Electric motors -- 14.3.3 Electromagnets and solenoids -- 14.3.4 Piezoelectric actuators -- 14.4 Conclusions -- 15 Engineering tolerancing -- 15.1 Introduction -- 15.2 Component tolerances -- 15.2.1 Standard fits for holes and shafts -- 15.2.2 Interference fits -- 15.2.3 Machine capability -- 15.2.4 Geometric tolerancing -- 15.3 Statistical tolerancing -- 15.3.1 Sure-fit or extreme variability -- 15.3.2 Linear functions or tolerance chains -- 15.3.3 Several independent, uncorrelated random variables -- 15.3.4 Statistical design techniques and quality assurance -- 15.4 Conclusions -- 16 Design management and case study -- 16.1 Introduction -- 16.2 Management of design -- 16.2.1 Project management -- 16.2.2 Evaluation -- 16.3 Costing -- 16.3.1 Selling price -- 16.3.2 Allowable cost -- 16.3.3 Cost estimating -- 16.3.4 Accounts -- 16.4 A guide to design literature and sources of information -- 16.5 Case study -- 16.5.1 Brief -- 16.5.2 Specification -- 16.5.3 Conceptual solutions -- 16.5.4 Detailed design -- 16.6 Conclusions -- Index.
Özet:
This book introduces the subject of total design, and introduces the design and selection of various common mechanical engineering components and machine elements. These provide "building blocks", with which the engineer can practice his or her art. The approach adopted for defining design follows that developed by the SEED (Sharing Experience in Engineering Design) programme where design is viewed as "the total activity necessary to provide a product or process to meet a market need." Within this framework the book concentrates on developing detailed mechanical design skills in the areas of bearings, shafts, gears, seals, belt and chain drives, clutches and brakes, springs and fasteners. Where standard components are available from manufacturers, the steps necessary for their specification and selection are developed. The framework used within the text has been to provide descriptive and illustrative information to introduce principles and individual components and to expose the reader to the detailed methods and calculations necessary to specify and design or select a component. To provide the reader with sufficient information to develop the necessary skills to repeat calculations and selection processes, detailed examples and worked solutions are supplied throughout the text. This book is principally a Year/Level 1 and 2 undergraduate text. Pre-requisite skills include some year one undergraduate mathematics, fluid mechanics and heat transfer, principles of materials, statics and dynamics. However, as the subjects are introduced in a descriptive and illustrative format and as full worked solutions are provided, it is possible for readers without this formal level of education to benefit from this book. The text is specifically aimed at automotive and mechanical engineering degree programmes and would be of value for modules in design,
mechanical engineering design, design and manufacture, design studies, automotive power-train and transmission and tribology, as well as modules and project work incorporating a design element requiring knowledge about any of the content described. The aims and objectives described are achieved by a short introductory chapters on total design, mechanical engineering and machine elements followed by ten chapters on machine elements covering: bearings, shafts, gears, seals, chain and belt drives, clutches and brakes, springs, fasteners and miscellaneous mechanisms. Chapters 14 and 15 introduce casings and enclosures and sensors and actuators, key features of most forms of mechanical technology. The subject of tolerancing from a component to a process level is introduced in Chapter 16. The last chapter serves to present an integrated design using the detailed design aspects covered within the book. The design methods where appropriate are developed to national and international standards (e.g. ANSI, ASME, AGMA, BSI, DIN, ISO). The first edition of this text introduced a variety of machine elements as building blocks with which design of mechanical devices can be undertaken. The approach adopted of introducing and explaining the aspects of technology by means of text, photographs, diagrams and step-by-step procedures has been maintained. A number of important machine elements have been included in the new edition, fasteners, springs, sensors and actuators. They are included here. Chapters on total design, the scope of mechanical engineering and machine elements have been completely revised and updated. New chapters are included on casings and enclosures and miscellaneous mechanisms and the final chapter has been rewritten to provide an integrated approach. Multiple worked examples and completed solutions are included.
Notlar:
Electronic reproduction. Ann Arbor, Michigan : ProQuest Ebook Central, 2017. Available via World Wide Web. Access may be limited to ProQuest Ebook Central affiliated libraries.
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