STUDY ON HUMAN SAFETY IMPROVEMENT IN BUS FRONTAL COLLISION

Abstract

It is important to study the passenger injury in vehicle design. Based on ECE R94 standard, the bus safety simulation model was established and human injury was analysed in bus frontal crash was analyed by MADYMO and HYPERMESH software. The simulation results showed that the crash acceleration of bus very high, the passenger’s head and neck were seriously injured. The main reasons were the safety system was not assured and energy absorption of bus head structure was very low. Based on the analysis results of injury mechanisms of passengers, the safety system and energy absorption structure of bus were improved. Improvement results showed that, the injury values of the passengers arcording to the requirements of European Standard ECE R94.