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| Author | : Martin Trapp |
| Publisher | : Elsevier |
| Total Pages | : 295 |
| Release | : 2012 |
| Genre | : Technology & Engineering |
| ISBN | : 0750684968 |
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.
| Author | : |
| Publisher | : |
| Total Pages | : 134 |
| Release | : 2008 |
| Genre | : |
| ISBN | : |
Squeak and rattle evaluation is a common problem faced by automotive OEM's. With increased importance to driving comfort and quality perception, squeak and rattle detection and elimination in modern automotive systems has become much more important in recent years. Many techniques involving time-frequency analysis, acoustics, digital signal processing, etc. are used to understand and control this unpredictable and undesirable vibro-acoustic phenomenon. An extensive literature survey was performed to gain understanding of the current state of the art. Detailed progression from the Fourier transform to the modern wavelet transform is also documented. This thesis is an attempt to perform a comparative analysis on experimental acoustic data collected on four, completely trimmed vehicles. These cars were tested on the four-axis, hydraulic road simulator at the Non-linear Testing Facility at the University of Cincinnati, Structural Dynamics Research Lab (UC-SDRL). The data was then analyzed using time-frequency techniques such as short time Fourier transform (STFT) and also with the advanced, complex Morlet wavelet technique. Both energy and amplitude normalization was performed on the Morlet wavelet and effects studied on data. The objective of the analysis was to detect and localize (in time and frequency) squeaks and rattles in automobiles from digital data recorded on the microphones when the hydraulic actuators were exciting the vehicle with certain signals. Understanding the applicability of the Morlet wavelets to the study of random bursts of acoustic energy and to observe their effectiveness in comparison to the standard STFT was also an important part of the study. Analysis of the data resulted in the conclusion that Morlet wavelets might not offer great advantage over the standard STFT in the process of detection of squeaks and rattles for automotive systems.
| Author | : Jian Pang |
| Publisher | : John Wiley & Sons |
| Total Pages | : 528 |
| Release | : 2018-11-12 |
| Genre | : Technology & Engineering |
| ISBN | : 1119515491 |
A comprehensive and versatile treatment of an important and complex topic in vehicle design Written by an expert in the field with over 30 years of NVH experience, Noise and Vibration Control of Automotive Body offers nine informative chapters on all of the core knowledge required for noise, vibration, and harshness engineers to do their job properly. It starts with an introduction to noise and vibration problems; transfer of structural-borne noise and airborne noise to interior body; key techniques for body noise and vibration control; and noise and vibration control during vehicle development. The book then goes on to cover all the noise and vibration issues relating to the automotive body, including: overall body structure; local body structure; sound package; excitations exerted on the body and transfer functions; wind noise; body sound quality; body squeak and rattle; and the vehicle development process for an automotive body. Vehicle noise and vibration is one of the most important attributes for modern vehicles, and it is extremely important to understand and solve NVH problems. Noise and Vibration Control of Automotive Body offers comprehensive coverage of automotive body noise and vibration analysis and control, making it an excellent guide for body design engineers and testing engineers. Covers all the noise and vibration issues relating to the automotive body Features a thorough set of tables, illustrations, photographs, and examples Introduces automotive body structure and noise and vibration problems Pulls together the diverse topics of body structure, sound package, sound quality, squeak and rattle, and target setting Noise and Vibration Control of Automotive Body is a valuable reference for engineers, designers, researchers, and graduate students in the fields of automotive body design and NVH.
| Author | : SAE-China |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 671 |
| Release | : 2012-11-06 |
| Genre | : Technology & Engineering |
| ISBN | : 3642338321 |
Proceedings of the FISITA 2012 World Automotive Congress are selected from nearly 2,000 papers submitted to the 34th FISITA World Automotive Congress, which is held by Society of Automotive Engineers of China (SAE-China ) and the International Federation of Automotive Engineering Societies (FISITA). This proceedings focus on solutions for sustainable mobility in all areas of passenger car, truck and bus transportation. Volume 13: Noise, Vibration and Harshness (NVH) focuses on: •Chassis Vibration and Noise Control •Transmission Vibration and Noise Control •Engine Vibration and Noise Control •Body Vibration and Noise Control •Vehicle Vibration and Noise Control •Analysis and Evaluation of In-Car Vibration & Noise •Wind Noise Control Technology •Vibration and Noise Testing Technology Above all researchers, professional engineers and graduates in fields of automotive engineering, mechanical engineering and electronic engineering will benefit from this book. SAE-China is a national academic organization composed of enterprises and professionals who focus on research, design and education in the fields of automotive and related industries. FISITA is the umbrella organization for the national automotive societies in 37 countries around the world. It was founded in Paris in 1948 with the purpose of bringing engineers from around the world together in a spirit of cooperation to share ideas and advance the technological development of the automobile.
| Author | : Y. V. D. Rao |
| Publisher | : Springer Nature |
| Total Pages | : 719 |
| Release | : 2021-07-20 |
| Genre | : Technology & Engineering |
| ISBN | : 9811617694 |
This book presents the select proceedings of the 1st International 13th National Conference on Industrial Problems on Machines and Mechanism (IPRoMM 2020) and examines issues in the design, manufacture, and performance of mechanical and mechatronic elements and systems that are employed in modern machines and devices. The topics covered include robotics, industrial CAD/CAM systems, mechatronics, machinery associated with conventional and unconventional manufacturing systems, material handling and automated assembly, mechanical and electro-mechanical systems of modern machinery and equipment, micro-devices, compliant mechanisms, hybrid electric vehicle and electric vehicle mechanisms, acoustic and noise control. This book also discusses the recent advances in the integration of IoT and Industry 4.0 in mechanism and machines. The book will be a valuable reference for academicians, researchers, and professionals interested in the design and development of industrial machines.
| Author | : Reza N. Jazar |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 326 |
| Release | : 2013-09-10 |
| Genre | : Technology & Engineering |
| ISBN | : 1461468779 |
Nonlinear Approaches in Engineering Applications 2 focuses on the application of nonlinear approaches to different engineering and science problems. The selection of the topics for this book is based on the best papers presented in the ASME 2010 and 2011 in the tracks of Dynamic Systems and Control, Optimal Approaches in Nonlinear Dynamics and Acoustics, both of which were organized by the editors. For each selected topic, detailed concept development, derivations and relevant knowledge are provided for the convenience of the readers. The topics that have been selected are of great interest in the fields of engineering and physics and this book is designed to appeal to engineers and researchers working in a broad range of practical topics and approaches.
| Author | : Xu Wang |
| Publisher | : Elsevier |
| Total Pages | : 448 |
| Release | : 2010-03-12 |
| Genre | : Technology & Engineering |
| ISBN | : 1845698045 |
High standards of noise, vibration and harshness (NVH) performance are expected in vehicle design. Refinement is therefore one of the main engineering/design attributes to be addressed when developing new vehicle models and components.Vehicle noise and vibration refinement provides a review of noise and vibration refinement principles, methods, advanced experimental and modelling techniques and palliative treatments necessary in the process of vehicle design, development and integration in order to meet noise and vibration standards. Case studies from the collective experience of specialists working for major automotive companies are included to form an important reference for engineers practising in the motor industry who seek to overcome the technological challenges faced in developing quieter, more comfortable cars.The reader will be able to develop an in-depth knowledge of the source and transmission mechanisms of noise and vibration in motor vehicles, and a clear understanding of vehicle refinement issues that directly influence a customer’s purchasing decision. Reviews noise and vibration refinement principles, methods and modelling techniques necessary in vehicle design, development and integration in order to meet noise and vibration standards Outlines objectives driving development and the significance of vehicle noise and vibration refinement whilst documenting definitions of key terms for use in practice Case studies demonstrate measurement and modelling in industry and illustrate key testing methods including hand sensing and environmental testing
| Author | : He Tang |
| Publisher | : SAE International |
| Total Pages | : 296 |
| Release | : 2017-01-30 |
| Genre | : Technology & Engineering |
| ISBN | : 0768083389 |
Proven technologies and processes are explored in this examination of modern automotive manufacturing. Fundamentals and applications, as well as new advances are discussed as the author bridges the gap between academic research and industrial practice. Having held positions as both a University Professor and as a Lead Engineering Specialist in industry, the author presents a concise understanding that reflects both technical and managerial perspectives with the aim of providing improvement through practical methods. Each chapter includes review questions and research topics, and, in addition, analysis problems are often included that comprehensively address: • Automotive Industry and Competition • Manufacturing Operations • Joining and Paint Processes • Production Operations and Quality Management • Performance Improvement Directly extracted and summarized from automotive manufacturing practices, this book serves as a fundamental manual. The subject is complemented by the author’s second book, Manufacturing System and Process Development for Vehicle Assembly, which provides even greater depth to the subject of modern automotive manufacturing.
| Author | : Ilkyeong Moon |
| Publisher | : Springer |
| Total Pages | : 502 |
| Release | : 2018-08-24 |
| Genre | : Computers |
| ISBN | : 3319997076 |
The two-volume set IFIP AICT 535 and 536 constitutes the refereed proceedings of the International IFIP WG 5.7 Conference on Advances in Production Management Systems, APMS 2018, held in Seoul, South Korea, in August 2018. The 129 revised full papers presented were carefully reviewed and selected from 149 submissions. They are organized in the following topical sections: lean and green manufacturing; operations management in engineer-to-order manufacturing; product-service systems, customer-driven innovation and value co-creation; collaborative networks; smart production for mass customization; global supply chain management; knowledge based production planning and control; knowledge based engineering; intelligent diagnostics and maintenance solutions for smart manufacturing; service engineering based on smart manufacturing capabilities; smart city interoperability and cross-platform implementation; manufacturing performance management in smart factories; industry 4.0 - digital twin; industry 4.0 - smart factory; and industry 4.0 - collaborative cyber-physical production and human systems.
| Author | : Xu Wang |
| Publisher | : Butterworth-Heinemann |
| Total Pages | : 400 |
| Release | : 2020-07-29 |
| Genre | : Technology & Engineering |
| ISBN | : 0128184108 |
Automotive Tire Noise and Vibrations: Analysis, Measurement and Simulation presents the latest generation mechanisms of tire/road noise. The book focuses not only on tire/road noise issues from the tire/road structures, materials and dynamics, but also from a whole vehicle system. The analyses cover finite element modeling, mathematical simulations and experimental tests, including works done to mitigate noise. This book provides a summary of tire noise and vibration research, with a focus on new simulation and measurement techniques. Covers new measurements techniques and simulation strategies that are critical in accurately assessing tire noise and vibration Provides recent simulation progress and findings of CAE on analysis of generation mechanisms of the tire/road noise Features a Statistical Energy Analysis (SEA) and model of a multilayer trim to enhance the sound absorption of tire/road noise
