Study on EvaluatingMethods for Human Exposure to Whole-Body Vibration of Automotive Ride

The characteristics and existing problems of ISO standard 2631 and absorbed power method, which are the currently most popular methods for evaluating human exposure to whole-body vibration in automotive ride, are discussed in detail. The theoretical analysis based on an automotive mechanics model as well as experimental results shows that GB 4970-85, which is based on ISO standard 2631, cannot accurately evaluate human exposure to whole-body vibration in automotive ride. Therefore, this paper develops a new evaluating method, using the accumulated exposure times within the frequently used speeds to evaluate human exposure to whole-body vibration of automotive ride. The evaluation result obtained with this newmethod coincides with the facts well.