A LABORATORY TOOL FOR THE STUDY OF VEHICLE VIBRATION PERFORMANCE
The International Conference on Applied Mechanics and Mechanical Engineering
The study of the vibration characteristics in machines has taken a front :seat in engineering effort. This is particularly true in the automotive industry, where marketing a vibrating vehicle is unacceptable. Today's automobiles are a complex spring-mass-damper system which is excited into :various modes of vibration. The vibrational modes falling in 16-2(,0 Hz are 'termed "structure shake", and produce distrubances seen and felt by the vehicle occupant. The knowledge of an objectionable
... bjectionable vibration in development programs. Therefore, the aim of this work is to introduce a method by which the vehicle vibration performance can be investigated in the laboratory. 'chassis dynamometer was used to simulate the road-going conditions. The measurement and analysis techniques are presented herein. Samples from the results obtained for van and small saloon vehicles are included to illust-: • rate the suitability of the measuring technique and the instrumentation • system used.