Int. J. Vehicle Noise and Vibration, Vol. , No. ,
Copyright © 20 Inderscience Enterprises Ltd.
Modelling neutral gear rattle for a light commercial
vehicle
Mrunal Kshirsagar, Satyajit R. Patil*
and Ansar A. Mulla
Automobile Engineering Department,
Rajarambapu Institute of Technology, Sakharale,
Shivaji University,
Kolhapur, Maharashtra, 415414, India
Email: mrunalkshirsagar19@gmail.com
Email: satyajit.patil@ritindia.edu
Email: ansar.mulla@ritindia.edu
*Corresponding author
Sudhir P. Takalkar
MSL Driveline Systems Ltd.,
Nasik, Maharashtra, 422007, Inda
Email: spt@msldriveline.com
Abstract: Acoustic levels have a significant influence on the ride comfort of
road vehicles. Among the others, gear rattling noise is a significant problem
faced by the car industry. Automotive powertrains are to
andisolatethetorsionalvibrationsresponsibleforgearrattling.This
work addresses problem of reducing gear rattle while the engine is idling.
The by introducing the pre-damper clutch
plate instead of a conventional clutch plate that uses torsional vibration springs.
A M/Simulink model is developed to estimate the effect of spring
stiffness on the rattle index of the system. The output of the model is validated
experimentally and the accuracy of the Simulink model is reported. The rattle
index was successfully decreased with the help of a pre-damped clutch plate,
and the model is found to be accurate enough to estimate the rattle index.
Keywords: neutral gear rattle; torsional vibrations; pre-damper spring; rattle
index.
Reference to this paper should be made as follows: Kshirsagar, M., Patil, S.R.,
Mulla, A.A. and Takalkar, S.P. () ‘Modelling neutral gear rattle for a light
commercial vehicle’, Int. J. Vehicle Noise and Vibration, Vol. , No. ,
pp.–.
Biographical notes: Mrunal Kshirsagar is a post-graduate in Automotive
Engineering and currently pursuing her PhD from VJTI, Mumbai University,
Mumbai, India. Her research areas are automotive brakes, contact mechanics,
NVH and friction.