Minimizing of Automotive Transmission Rattle Noise by Means of Gear Oils
  • Author : Axel Baumann
  • Release Date : 20 July 2022
  • Publisher : Springer Nature
  • Genre : Technology & Engineering
  • Pages : 157
  • ISBN 13 : 9783658377083
  • Total Download : 473
  • File Size : 40,8 Mb

Minimizing of Automotive Transmission Rattle Noise by Means of Gear Oils eBook PDF Summary

Book Description: 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.

Disclaimer: BookTaks does not own books pdf, neither created nor scanned. We just provide the link that is already available on the internet, public domain and in Google Drive. If any way it violates the law or has any issues, then kindly mail us via contact us page to request the removal of the link.

Automotive Transmissions

Automotive Transmissions

Author : Harald Naunheimer,Bernd Bertsche,Joachim Ryborz,Wolfgang Novak
Publisher : Springer Science & Business Media
Total Download : 589
File Size : 43,9 Mb
Automotive Systems

Automotive Systems

Author : G.K. Awari,V.S. Kumbhar,R.B. Tirpude
Publisher : CRC Press
Total Download : 191
File Size : 43,8 Mb