Analysis on the optimal location of mounting points at the body sides of a vehicle

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Journal of Vibration and Shock ›› 2019, Vol. 38 ›› Issue (10) : 215-220.

WANG Tianxiu1, WANG Chenguang2, YANG Jiedan1, WANG Xiaomeng1, HUANG Yu2

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Abstract

Power assembly is the main source of body vibration, and mounting system optimization is important for improving the NVH performances of vehicles.The dynamic characteristics of a vehicle with different location of mounting points at the body sides were considered and the mounting points admittance sensitivity to the transmitted power was analyzed.A simplified model was built based on these parameters.The most sensitive column in the admittance matrix and its corresponding mount was found.The admittance matrices with different mounting points were calculated by using the finite element method and the best place of mounting points was found to reduce the transfer power to the car body.The sensitivity analysis and finite element calculation show that an appropriate mounting location is effective to reduce the transmitted power to the vehicle body.Some rationalization proposals were given.

Key words

vibration and wave / engine mounting system / transmitted power / body finite element model / location optimization

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WANG Tianxiu1, WANG Chenguang2, YANG Jiedan1, WANG Xiaomeng1, HUANG Yu2. Analysis on the optimal location of mounting points at the body sides of a vehicle[J]. Journal of Vibration and Shock, 2019, 38(10): 215-220

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