Minimizing of Automotive Transmission Rattle Noise by Means of Gear Oils

This book PDF is perfect for those who love Technology & Engineering genre, written by Axel Baumann and published by Springer Nature which was released on 20 July 2022 with total hardcover pages 157. You could read this book directly on your devices with pdf, epub and kindle format, check detail and related Minimizing of Automotive Transmission Rattle Noise by Means of Gear Oils books below.

Minimizing of Automotive Transmission Rattle Noise by Means of Gear Oils
Author : Axel Baumann
File Size : 53,5 Mb
Publisher : Springer Nature
Language : English
Release Date : 20 July 2022
ISBN : 9783658377083
Pages : 157 pages
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Minimizing of Automotive Transmission Rattle Noise by Means of Gear Oils by Axel Baumann Book PDF 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.

Minimizing of Automotive Transmission Rattle Noise by Means of Gear Oils

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

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