Automotive Buzz, Squeak and Rattle - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Automotive Buzz, Squeak and Rattle write by Martin Trapp. This book was released on 2012. Automotive Buzz, Squeak and Rattle available in PDF, EPUB and Kindle. 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.
Squeak and Rattle Detection
Squeak and Rattle Detection - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Squeak and Rattle Detection write by . This book was released on 2008. Squeak and Rattle Detection available in PDF, EPUB and Kindle. 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.
Noise and Vibration Control in Automotive Bodies
Noise and Vibration Control in Automotive Bodies - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Noise and Vibration Control in Automotive Bodies write by Jian Pang. This book was released on 2018-11-12. Noise and Vibration Control in Automotive Bodies available in PDF, EPUB and Kindle. 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.
Proceedings of the FISITA 2012 World Automotive Congress
Proceedings of the FISITA 2012 World Automotive Congress - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Proceedings of the FISITA 2012 World Automotive Congress write by SAE-China. This book was released on 2012-11-06. Proceedings of the FISITA 2012 World Automotive Congress available in PDF, EPUB and Kindle. 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.
Advances in Industrial Machines and Mechanisms
Advances in Industrial Machines and Mechanisms - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Advances in Industrial Machines and Mechanisms write by Y. V. D. Rao. This book was released on 2021-07-20. Advances in Industrial Machines and Mechanisms available in PDF, EPUB and Kindle. 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.
