关于长大货物车振动加速度考核指标的若干思考

Thinking about Some Issues in the Evaluation Indexes for Vibration Acceleration of Long and Big Cargo Freight Cars

长大货物车因其自身结构的特殊性,在线路动力学试验中易出现振动加速度超标的现象。文章从实车线路动力学试验和理论分析2个方面出发,探讨了长大货物车振动加速度偏大的原因,并介绍了国外相关标准对车辆振动加速度的有关规定,提出了修订长大货物车动力学试验标准的迫切性和必要性,以利于进一步规范长大货物车的线路动力学试验。

Due to the special features of the structure of long and big cargo freight cars,the phenomenon that the vibration acceleration exceeds the standard is liable to appear in the dynamics test on track.In this paper,from the two aspects of dynamics test for practical cars on track and the theoretical analysis,the causes to too large vibration acceleration of long and big cargo freight cars are discussed,relevant regulations on vehicle vibration acceleration in standards abroad are introduced,the urgency and necessity to revise the dynamics test standard for long and big cargo freight cars are put forward,which is helpful in regulating the dynamics test for long and big cargo freight cars on track.