American Doctoral Dissertations PDF Download

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Category : Dissertation abstracts
Languages : en
Pages : 896

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Book Description

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Category :
Languages : en
Pages : 30

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Book Description
Modification of geometry of spur and helical gears with parallel axes and helical gears with crossed axes is proposed. The finishing process of gear generation is shaving. The purposes of modification of the gear geometry are to localize and stabilize the bearing contact, and to reduce noise and vibration. The goals mentioned above are achieved by using profile crowning and plunging the shaver by a prescribed motion during pinion generation. The pinion becomes double crowned. The gear member is generated as a conventional involute gear. A tooth contact analysis (TCA) program for simulation of meshing and contact was developed and the analysis is illustrated with TCA results for spur and helical gears.

Author: J. Derek Smith
Publisher: CRC Press
ISBN: 1482276275
Category : Science
Languages : en
Pages : 300

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Book Description
Based on over 40 years of consultation and teaching experience, Gear Noise and Vibration demonstrates logical gear noise and vibration approaches without the use of complex mathematics or lengthy computation methods. The second edition offers new and extended discussions on high- and low-contact ratio gears, lightly loaded gears, planetary and spli

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Category : Aeronautics
Languages : en
Pages : 1282

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Book Description
Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.

Author: Alexander L. Kapelevich
Publisher: CRC Press
ISBN: 1439876185
Category : Technology & Engineering
Languages : en
Pages : 319

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Book Description
Over the last several decades, gearing development has focused on improvements in materials, manufacturing technology and tooling, thermal treatment, and coatings and lubricants. In contrast, gear design methods have remained frozen in time, as the vast majority of gears are designed with standard tooth proportions. This over-standardization significantly limits the potential performance of custom gear drives, especially in demanding aerospace or automotive applications. Direct Gear Design introduces an alternate gear design approach to maximize gear drive performance in custom gear applications. Developed by the author, the Direct Gear Design® method has been successfully implemented in a wide variety of custom gear transmissions over the past 30 years. The results are maximized gear drive performance, increased transmission load capacity and efficiency, and reduced size and weight. This book explains the method clearly, making it easy to apply to actual gear design. Describes the origin and theoretical foundations of the Direct Gear Design approach as well as some of its applications—and its limits Details the optimization techniques and the specifics of Direct Gear Design Discusses how this approach can be used with asymmetric gears to further improve performance Describes tolerance selection, manufacturing technologies, and measurement methods of custom gears Compares Direct Gear Design with traditional gear design from both an analytical and an experimental perspective Illustrates the applicability and benefits of this gear design approach with implementation examples Written by an engineer for engineers, this book presents a unique alternative to traditional gear design. It inspires readers to explore ways of improving gear transmission performance in custom gear applications, from higher transmission load capacity, efficiency, and reliability to lower size, weight, and cost.

Author: G. Broersma
Publisher:
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Category : Gear industry
Languages : en
Pages : 208

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Category : Gearing, Planetary
Languages : en
Pages : 236

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Author: Tadeusz Michalowski
Publisher: BoD – Books on Demand
ISBN: 9533077085
Category : Computers
Languages : en
Pages : 526

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Book Description
The book consists of 24 chapters illustrating a wide range of areas where MATLAB tools are applied. These areas include mathematics, physics, chemistry and chemical engineering, mechanical engineering, biological (molecular biology) and medical sciences, communication and control systems, digital signal, image and video processing, system modeling and simulation. Many interesting problems have been included throughout the book, and its contents will be beneficial for students and professionals in wide areas of interest.

Author: Lester E. Alban
Publisher: ASM International
ISBN: 9781615031771
Category : Technology & Engineering
Languages : en
Pages : 252

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Book Description
Explores the detailed steps necessary to determine the causes of failure. First, the physical characteristics of a gear are studied: where the stress points are, from what directions the forces are applied, where the movement of material progresses, and where strain patterns exist. Second, all external conditions and forces are considered. With this background information, a systematic examination is described from beginning to end, the end being a conclusion about the mode and cause of failure.

Author: Gitin M. Maitra
Publisher: McGraw-Hill Professional Publishing
ISBN: 9780074602379
Category : Gearing
Languages : en
Pages : 0

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Book Description
This new edition provides extensive information to designers on various aspects of gears and gearing systems. Very comprehensive in its coverage, the handbook contains enough tables, illustrative examples and diagrams to enable designers arrive at quick solutions for their problems. The handbook is based on ISO specifications and is a unique blend of practical as well as the theoretical aspects of gear designs. The new edition includes more on spiral bevel gears, arcoid gears, klingelnberg, and gleason systems and gear tooth checking.