Vibration in car seat- occupant system: Overview and proposal of a novel simulation method

Abstract

In the modern automotive industries, vibration levels inside the human body and the car seat are mainly validated using the on-road vehicle testing or laboratory experiment. This paper aims to propose a novel bio-dynamic simulation technique which will provide the level of vibration in terms of acceleration, displacement or velocity inside the car seated human body and the car seat itself. There are many existing simulation technologies in the market to provide vibration related solution for a specific portion or sub-portion of the human-car seat system, but this proposed novel simulation method will give a complete solution for the entire human body and car seat assembly inside an automotive structure under real life operating condition without conducting any real experiment and testing. Accomplishment of this project will take the existing technology to an advanced level to assess the dynamic interaction between the automotive seat and human mass and help to understand the effect of vibration in a clearer way by judging the three directional stiffness and damping values, mode shapes, random vibration, power spectrum, resonance frequencies and vibration transmission. This research will help to predict the final vibration data at different locations of the human and automotive seat, thus will try to fill up the gap in the latest technologies and omit the necessity of the expensive and robust experimental methods. A cutting-edge technology will be achieved by this unique bio-dynamic simulation technique to understand the effects and estimation of level of vibration inside the car seat and its occupant.