Minimizing Of Automotive Transmission Rattle Noise By Means Of Gear Oils

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Minimizing of Automotive Transmission Rattle Noise by Means of Gear Oils

Minimizing of Automotive Transmission Rattle Noise by Means of Gear Oils
  • Author : Axel Baumann
  • Publisher : Unknown
  • Release Date : 2022-07-20
  • Total pages : 157
  • ISBN : 9783658377083
  • File Size : 10,9 Mb
  • Total Download : 292
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Summary : Caused by downsizing of combustion engines, the torque fluctuation at the crankshaft induces torsional vibrations in the powertrain. Manual transmissions and dual clutch transmissions are particularly sensitive to gear-rattle noise. Gear-rattle noise arises from oscillations of loose parts with clearance, e.g. idler gears, synchronizer rings and gearshift sleeves. The aim of this research is the formulation of a gear oil for the application in a manual transmission to minimize gear rattling noise. Acoustic measurements on a gear-rattle noise test bench verify the noise reduction of the developed gear oils with commonly used low oil viscosity. An analysis of the transmission error proves that gear tooth impacts during rattling lead to elastic deformation of the meshing gear pairs. The main source for the intensity of gear-rattle noise is the additional presence of meshing impacts at the beginning of each gear pair meshing. Gear-rattle noise reduction can be achieved by avoiding meshing impacts, e.g. by minimizing the traction coefficient of the gear oil.

Transient Processes in Tribology

Transient Processes in Tribology
  • Author : A A Lubrecht,G. Dalmaz
  • Publisher : Unknown
  • Release Date : 2004-06-04
  • Total pages : 892
  • ISBN : 0080474640
  • File Size : 54,5 Mb
  • Total Download : 242
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Summary : The papers contained within this volume focus on the transient aspects of the preocesses in tribology highlighting the differences obtained with stationery conditions, be they experimental analytical or numerical.

Advanced Manufacturing and Automation X

Advanced Manufacturing and Automation X
  • Author : Yi Wang,Kristian Martinsen,Tao Yu,Kesheng Wang
  • Publisher : Unknown
  • Release Date : 2021-01-22
  • Total pages : 753
  • ISBN : 9789813363182
  • File Size : 43,7 Mb
  • Total Download : 685
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Summary : This book presents selected papers from the 10th International Workshop of Advanced Manufacturing and Automation (IWAMA 2020), held in Zhanjiang, Guangdong province, China, on October 12-13, 2020. Discussing topics such as novel techniques for manufacturing and automation in Industry 4.0 and smart factories, which are vital for maintaining and improving economic development and quality of life, it offers researchers and industrial engineers insights into implementing the concepts and theories of Industry 4.0, in order to effectively respond to the challenges posed by the 4th industrial revolution and smart factories.

Fundamentals of Medium/Heavy Duty Commercial Vehicle Systems

Fundamentals of Medium/Heavy Duty Commercial Vehicle Systems
  • Author : Gus Wright,Owen C. Duffy
  • Publisher : Unknown
  • Release Date : 2019-07
  • Total pages : 1912
  • ISBN : 9781284150933
  • File Size : 51,5 Mb
  • Total Download : 782
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Summary : "Thoroughly updated and expanded, 'Fundamentals of Medium/Heavy Duty Commercial Vehicle Systems, Second Edition' offers comprehensive coverage of basic concepts building up to advanced instruction on the latest technology, including distributed electronic control systems, energy-saving technologies, and automated driver-assistance systems. Now organized by outcome-based objectives to improve instructional clarity and adaptability and presented in a more readable format, all content seamlessly aligns with the latest ASE Medium-Heavy Truck Program requirements for MTST." --Back cover.

Proceedings of SAE-China Congress 2015: Selected Papers

Proceedings of SAE-China Congress 2015: Selected Papers
  • Author : China Society of Automotive Engineers
  • Publisher : Unknown
  • Release Date : 2015-11-30
  • Total pages : 638
  • ISBN : 9789812879783
  • File Size : 39,8 Mb
  • Total Download : 995
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Summary : These proceedings gather outstanding papers submitted to the 2015 SAE-China Congress, the majority of which are from China, the biggest car maker as well as most dynamic car market in the world. The book covers a wide range of automotive topics, presenting the latest technical achievements in the industry. Many of the approaches presented can help technicians to solve the practical problems that most affect their daily work.

Proceedings of the FISITA 2012 World Automotive Congress

Proceedings of the FISITA 2012 World Automotive Congress
  • Author : SAE-China,FISITA
  • Publisher : Unknown
  • Release Date : 2012-11-06
  • Total pages : 700
  • ISBN : 9783642338328
  • File Size : 44,9 Mb
  • Total Download : 911
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Summary : 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.

Automotive Transmissions

Automotive Transmissions
  • Author : Harald Naunheimer,Bernd Bertsche,Joachim Ryborz,Wolfgang Novak
  • Publisher : Unknown
  • Release Date : 2010-11-09
  • Total pages : 717
  • ISBN : 9783642162145
  • File Size : 50,7 Mb
  • Total Download : 282
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Summary : This book gives a full account of the development process for automotive transmissions. Main topics: - Overview of the traffic – vehicle – transmission system - Mediating the power flow in vehicles - Selecting the ratios - Vehicle transmission systems - basic design principles - Typical designs of vehicle transmissions - Layout and design of important components, e.g. gearshifting mechanisms, moving-off elements, pumps, retarders - Transmission control units - Product development process, Manufacturing technology of vehicle transmissions, Reliability and testing The book covers manual, automated manual and automatic transmissions as well as continuously variable transmissions and hybrid drives for passenger cars and commercial vehicles. Furthermore, final drives, power take-offs and transfer gearboxes for 4-WD-vehicles are considered. Since the release of the first edition in 1999 there have been a lot of changes in the field of vehicles and transmissions. About 40% of the second edition’s content is new or revised with new data.

Automotive Systems

Automotive Systems
  • Author : G.K. Awari,V.S. Kumbhar,R.B. Tirpude
  • Publisher : Unknown
  • Release Date : 2021-01-26
  • Total pages : 327
  • ISBN : 9781000262018
  • File Size : 46,6 Mb
  • Total Download : 820
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Summary : This book introduces the principles and practices in automotive systems, including modern automotive systems that incorporate the latest trends in the automobile industry. The fifteen chapters present new and innovative methods to master the complexities of the vehicle of the future. Topics like vehicle classification, structure and layouts, engines, transmissions, braking, suspension and steering are illustrated with modern concepts, such as battery-electric, hybrid electric and fuel cell vehicles and vehicle maintenance practices. Each chapter is supported with examples, illustrative figures, multiple-choice questions and review questions. Aimed at senior undergraduate and graduate students in automotive/automobile engineering, mechanical engineering, electronics engineering, this book covers the following: Construction and working details of all modern as well as fundamental automotive systems Complexities of operation and assembly of various parts of automotive systems in a simplified manner Handling of automotive systems and integration of various components for smooth functioning of the vehicle Modern topics such as battery-electric, hybrid electric and fuel cell vehicles Illustrative examples, figures, multiple-choice questions and review questions at the end of each chapter