Optimisation of Engine Mounting System for Reduction in Lateral Shake and Drive Away Shudder on Vehicle 2017-01-1822
In this study we will be discussing two issues related to vibrations which effect car owners. The first one, called lateral shake, can be described as a lateral vibration felt by customer in low speed of around 1200rpm, when vehicle shakes severely in Y-direction. The vibration is significantly felt at the thighs of passengers. A 16DOF rigid body model is established to simulate the power train & body system. The second vibration issue, called drive away shudder (also known as clutch judder/chatter/shudder) is a vibration felt by customers at the time of marching off. The vibration is significantly felt at the time of clutch engagement as a shiver in vehicle. While the common solution of shudder is to optimize clutch friction & engagement, in this study solution has been provided by optimizing the power train mounting system. Clutch shudder is observed on a medium sized car when driven in the range of 10-20 Km/h. The design of powertrain mounting system has been modified to achieve the reduction in above mentioned vibrations. The pros & cons of the suggested change in mounting system on the overall NVH performance is also discussed.
Citation: Agarwal, K. and Hazra, S., "Optimisation of Engine Mounting System for Reduction in Lateral Shake and Drive Away Shudder on Vehicle," SAE Technical Paper 2017-01-1822, 2017, https://doi.org/10.4271/2017-01-1822. Download Citation
Author(s):
Kopal Agarwal, Sandip Hazra
Affiliated:
Tata Motors Ltd.
Pages: 7
Event:
Noise and Vibration Conference and Exhibition
ISSN:
0148-7191
e-ISSN:
2688-3627
Related Topics:
Engine mounts
Powertrains
Vibration
Clutches
Noise, vibration, and harshness standards and regulations
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