1. Modelling & analysis of engine mount system for vibration reduction
Authors : Vishal Kadam
Pages : 53-60
DOI : http://dx.doi.org/10.21172/1.73.008
Keywords : DSR, DEGREE OF FREEDOM(DOF),NATURAL FREQUENCY ,VIBRATION,KINETIC ENERGY FRACTION. Abstract :Vehicle engine mounting system consists of an engine and three to four mounts connected to the vehicle structure. The behaviour of mounting system depends on configuration of the vehicle. In this paper complete 16 Degrees Of Freedom mathematical model of vehicle is considered for analysis which consists of powertrain(engine), chassis, four wheels as mass and engine mounts, suspensions and tyres as stiffness. This 16DOF mathematical model is solved using Wolfram Mathematica to find Natural frequencies and Mount displacements. The results obtained are validated with experimental results on actual system.There are limitations on changing the mount locations frequently so, it becomes necessary to change rubber stiffness to meet desired NVH targets. Engine mount stiffness optimization is always a trade off between NVH performance and durability performance. Softer mounts are required to achieve NVH performance while harder mounts give more durability. In this work a optimization programme is developed which gives engine vibration and mount displacement from softer stiffness to harder one and find optimum value of engine mount stiffness using Wolfram Mathematica.These learning’s are useful for design of various subsystem or components to refine the full vehicle Noise Vibration Harshness (NVH) at the robust design level
Citing this Journal Article :Vishal Kadam, "Modelling & analysis of engine mount system for vibration reduction", Summer Special Issue - - June 2016, 53-60
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