Study on Permitted Height of Gravity Center of Railway Loaded Vehicle Based on Safety Criteria of Derailment Coefficient
Permitted height of gravity center of loaded vehicle is one of basic railway technical standards. The permitted height is 2000ram which originated from Manchuria railway in 1930s and lack of theoretical basis. The paper analyzes the forces acting on vehicle under critical derailment condition and presents the model of derailment coefficient and height of gravity center of loaded vehicle. Also the most unfavorable combination of directions of lateral forces on straight lines and on curves which can give rise to vehicle derailment is determined. Relation between derailment coefficient and height of gravity center of loaded vehicle is calculated under four loading conditions and three running conditions. According the calculation results, permitted height of gravity center of loaded vehicle can be enhanced to 2207mm, which is important both to guaranteeing safety of railway freight transportation and to fully utilizing railway transportation capacity.
derailment coefficient permitted height gravity center of loaded vehicle railway transportation
HAN Mei HAN Boling WANG Yanling PANG Liang CHEN Chao
School of Traffic and Transportation,Beijing Jiaotong University,Beijing 100044,China Bureau of Transport,Ministry of Railways,Beijing 100844,China China National Materials Storage & Transportation Corporation,Beijing 100070,China
国际会议
The 2008 International Symposium on Safety Science and Technology(2008年安全科学技术国际会议)
北京
英文
2064-2068
2008-09-24（万方平台首次上网日期，不代表论文的发表时间）