EVALUATION AND ANALYSIS OF VIBRATION EFFECTS ON BUS USERS.

The paper deals with classification and basic characteristics of vibration that act on users during bus exploitation. Some physiological and psychological effects of vibration acting on bus drivers and passengers are presented. In addition, this paper shows the results of evaluation of vibration effects on the users' comfort (the driver and three passengers) for intercity bus IK-301. Evaluation has been carried out according to the procedure and criteria prescribed by two versions of International standard ISO 2631 (1985, 1997). For the purpose of this analysis, validated bus oscillatory model developed in multibody software packageADAMS/Viewwas used. The oscillatory model was excited by road roughness (asphalt-concrete pavement in poor condition) registered on two tracks at speed of 64 km/h. It was found that the passenger seating on the seat in the bus rear overhang has the worst comfort and the shortest allowable vibration exposure time. [ABSTRACT FROM AUTHOR]