The Evaluation Standards and Methods of Human Vibration Comfort in Seated and Recumbent Position

In this paper, the evaluation standards of human vibration comfort were summarized contrastively. During the standards, the ISO 2631 (Evaluation for human exposure to whole-body vibration) was widely used to evaluate the human comfort under a vibration condition. In China, the evaluation standards were established refer to the ISO 2631 and revised by own experiment. Summing up the published standards externally and internally, the general evaluation method for human vibration comfort in seated position and recumbent position were given. The method of fatigue-decreased proficiency boundary \( T_{CD} \) was used to evaluate human vibration comfort in seated position. The method of frequency-weighted acceleration at the buttock and head \( a_{xbhw} \) was used to evaluate human vibration comfort in recumbent position. On the base of the standards, students were researching the new methods.