Download or read book An Experimental Methodology for Evaluating Root Stresses of Rattling Gear Pairs written by Colton W. Thomas and published by . This book was released on 2021 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Gear rattle is a major noise problem in certain powertrains where an internal combustion engine drives a timing gear drive or a manual transmission. It is primarily a result of gear teeth losing contact intermittently and committing impacts along the drive and coast sides of the gear pair having a certain amount of backlash. Most of the studies on gear rattle focused on the noise and vibration aspects of the problem, with a very little attention given to adverse durability consequences. In this study, an experimental investigation is performed to measure root stresses while a pair of spur gears are in various types of rattling motions. A test setup is employed to operate a pair of high-accuracy spur gears under the influence of a periodically time varying input torque to produce periodic and non-periodic rattling motions. A multi-channel strain measurement system is incorporated in a methodology to measure root stresses in the instances of impact events. Changes to root stress time histories due to drive and coast-side impacts are documented to show that impacts significantly increase the root stress amplitudes and frequencies. The resultant experimental database generated under tightly-controlled conditions is suitable for validating future modeling studies that are required to predict statistical distributions for root stress duty cycles of gear teeth.
Download or read book An Investigation Into the Impact of Random Spacing Errors on Static Transmission Error and Root Stresses of Spur Gear Pairs written by Michael James Handschuh and published by . This book was released on 2013 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: In this study, theoretical and experimental investigations of the effect of tooth spacing errors on the motion transmission error and root stresses of spur gear pairs are performed. A test setup with dedicated instrumentation for the measurement of the static transmission error and root stresses is devised. A number of experiments are performed with gears having deterministic spacing errors (at one or two teeth only) and random spacing errors (all teeth having a random distribution of errors as in a typical production gear). A test matrix defined by a range of torque at a very low speed is executed with each error configuration to experimentally quantify the influence of spacing errors on the static transmission error and the gear tooth root stresses. The results of these experiments form an extensive database on the impact of spacing errors on the static transmission error (a typical noise metric) and the root stresses (a durability metric). These experiments are simulated by using two existing gear contact models to demonstrate their accuracy and describe the empirical trends physically. A methodology is proposed at the end to relate increases in root stresses to the spacing error magnitudes directly. Closed-form expressions resulting from this methodology allow determination of the stress amplification factors due to a certain range of spacing error tolerances as well as quantifying how much spacing error can be tolerated within a user defined stress limit.
Download or read book Topics in Modal Analysis Parameter Identification Volume 9 written by Brandon J. Dilworth and published by Springer Nature. This book was released on 2023-12-08 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt: Topics in Modal Analysis, Testing & Parameter Identification, Volume 9: Proceedings of the 41st IMAC, A Conference and Exposition on Structural Dynamics, 2023, the ninth volume of ten from the Conference brings together contributions to this important area of research and engineering. The collection presents early findings and case studies on fundamental and applied aspects of Modal Analysis, Modal Testing and Modal Parameter Identification including papers on: Analytical Methods Modal Applications Basics of Modal Analysis Experimental Techniques Operational Modal Analysis Modal Parameter Identification Novel Techniques Rotating Machinery Additive Manufacturing Applications Biomedical Applications
Download or read book The Engineering Index Annual written by and published by . This book was released on 1992 with total page 2264 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since its creation in 1884, Engineering Index has covered virtually every major engineering innovation from around the world. It serves as the historical record of virtually every major engineering innovation of the 20th century. Recent content is a vital resource for current awareness, new production information, technological forecasting and competitive intelligence. The world?s most comprehensive interdisciplinary engineering database, Engineering Index contains over 10.7 million records. Each year, over 500,000 new abstracts are added from over 5,000 scholarly journals, trade magazines, and conference proceedings. Coverage spans over 175 engineering disciplines from over 80 countries. Updated weekly.
Download or read book Gear Noise and Vibration written by J. Derek Smith and published by CRC Press. This book was released on 2003-04-08 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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
Download or read book Multi Body Dynamics written by Homer Rahnejat and published by Wiley. This book was released on 2000-07-26 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Leading developments in analysis and testing Multi-Body Dynamics: Monitoring and Simulation Techniques II provides a comprehensive update on the latest developments in the field. Presented at the 2nd International Symposium of Multi-Body Dynamics, this book details the newest work surrounding monitoring and simulation from leading researchers in industry and academia. Applicable to a wide variety of applications, the ideas and techniques presented here provide useful insight for anyone working in dynamics analysis and experimentation.
Download or read book Applied Mechanics Reviews written by and published by . This book was released on 1989 with total page 410 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Feedback Systems written by Karl Johan Åström and published by Princeton University Press. This book was released on 2021-02-02 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The essential introduction to the principles and applications of feedback systems—now fully revised and expanded This textbook covers the mathematics needed to model, analyze, and design feedback systems. Now more user-friendly than ever, this revised and expanded edition of Feedback Systems is a one-volume resource for students and researchers in mathematics and engineering. It has applications across a range of disciplines that utilize feedback in physical, biological, information, and economic systems. Karl Åström and Richard Murray use techniques from physics, computer science, and operations research to introduce control-oriented modeling. They begin with state space tools for analysis and design, including stability of solutions, Lyapunov functions, reachability, state feedback observability, and estimators. The matrix exponential plays a central role in the analysis of linear control systems, allowing a concise development of many of the key concepts for this class of models. Åström and Murray then develop and explain tools in the frequency domain, including transfer functions, Nyquist analysis, PID control, frequency domain design, and robustness. Features a new chapter on design principles and tools, illustrating the types of problems that can be solved using feedback Includes a new chapter on fundamental limits and new material on the Routh-Hurwitz criterion and root locus plots Provides exercises at the end of every chapter Comes with an electronic solutions manual An ideal textbook for undergraduate and graduate students Indispensable for researchers seeking a self-contained resource on control theory
Download or read book Encyclopedia of Tribology written by Q. Jane Wang and published by Springer. This book was released on 2013-09-26 with total page 4139 pages. Available in PDF, EPUB and Kindle. Book excerpt: TRIBOLOGY – the study of friction, wear and lubrication – impacts almost every aspect of our daily lives. The Springer Encyclopedia of Tribology is an authoritative and comprehensive reference covering all major aspects of the science and engineering of tribology that are relevant to researchers across all engineering industries and related scientific disciplines. This is the first major reference that brings together the science, engineering and technological aspects of tribology of this breadth and scope in a single work. Developed and written by leading experts in the field, the Springer Encyclopedia of Tribology covers the fundamentals as well as advanced applications across material types, different length and time scales, and encompassing various engineering applications and technologies. Exciting new areas such as nanotribology, tribochemistry and biotribology have also been included. As a six-volume set, the Springer Encyclopedia of Tribology comprises 1630 entries written by authoritative experts in each subject area, under the guidance of an international panel of key researchers from academia, national laboratories and industry. With alphabetically-arranged entries, concept diagrams and cross-linking features, this comprehensive work provides easy access to essential information for both researchers and practicing engineers in the fields of engineering (aerospace, automotive, biomedical, chemical, electrical, and mechanical) as well as materials science, physics, and chemistry.
Download or read book Automotive Buzz Squeak and Rattle written by Martin Trapp and published by Elsevier. This book was released on 2012 with total page 295 pages. Available in PDF, EPUB and Kindle. Book excerpt: Buzz, Squeak and Rattle (BSR) is the industry term for the audible engineering challenges faced by all vehicle and component engineers. This book provides a self-contained reference to the background theory, testing, analysis and elimination of BSR.
Download or read book Proceedings of the 1994 International Gearing Conference written by J. N. Fawcett and published by . This book was released on 1994 with total page 566 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume contains reports to the International Gearing Conference 1994. Key note addresses covered an overview of a five-year research development and test programme, and thoughts on the philosophy of gear inspection.
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1986 with total page 1358 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Managing to Learn written by John Shook and published by Lean Enterprise Institute. This book was released on 2008 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The process by which a company identifies, frames, acts and reviews progress on problems, projects and proposals can be found in the structure of the A3 process ... follow the story of a manager ... and his report ... which will reveal how the A3 can be used as a management process to create a standard method for innovating, planning, problem-solving, and building structures for a broader and deeper form of thinking - a practical and repeatable approach to organizational learning"--Publisher's description.
Download or read book The Automotive Transmission Book written by Robert Fischer and published by Springer. This book was released on 2015-05-11 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents essential information on systems and interactions in automotive transmission technology and outlines the methodologies used to analyze and develop transmission concepts and designs. Functions of and interactions between components and subassemblies of transmissions are introduced, providing a basis for designing transmission systems and for determining their potentials and properties in vehicle-specific applications: passenger cars, trucks, buses, tractors and motorcycles. With these fundamentals the presentation provides universal resources for both state-of-the-art and future transmission technologies, including systems for electric and hybrid electric vehicles.
Download or read book Current Environmental Engineering Summaries written by Engineering Information, Inc and published by . This book was released on 1993 with total page 1136 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Automotive Transmissions written by Yong Chen and published by Springer Nature. This book was released on 2020-07-30 with total page 577 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book introduces readers to the theory, design and applications of automotive transmissions. It covers multiple categories, e.g. AT, AMT, CVT, DCT and transmissions for electric vehicles, each of which has its own configuration and characteristics. In turn, the book addresses the effective design of transmission gear ratios, structures and control strategies, and other topics that will be of particular interest to graduate students, researchers and engineers. Moreover, it includes real-world solutions, simulation methods and testing procedures. Based on the author’s extensive first-hand experience in the field, the book allows readers to gain a deeper understanding of vehicle transmissions.
Download or read book The Tribology Handbook written by Michael J Neale and published by Elsevier. This book was released on 1995-12-15 with total page 577 pages. Available in PDF, EPUB and Kindle. Book excerpt: The renowned reference work is a practical guide to the selection and design of the components of machines and to their lubrication. It has been completely revised for this second edition by leading experts in the area.
