THEORY OF RANDOM ENERGY ANALYSIS FOR TRAIN DERAILMENT ON RAILWAY BRIDGE AND ITS APPLICATION
By applying system dynamics stability concepts, the mechanism of train derailment on bridge is proposed. Then the theory of energy random analysis for train derailment on bridge is put forward. The contents of the theory are as follows: (1) Establishing of vibration equation set of the train-bridge system; (2) Determining of exciting source of transverse vibration of the system; (3) Method of random energy analysis of transverse vibration of the system; (4) Geometric rules of derailment; (5) Calculation of the whole courses of train derailment on bridge; (6) Criteria of energy increment for judging train derailment on bridge. Finally, three cases concerning trains derailment on bridges are made, which coincide with the actual conditions. Meanwhile, some main conclusions are also obtained as follows: (1) Insufficient of transverse rigidity of bridge is the reason causing train derailment on bridge. (2) Enhancing transverse rigidity of bridge is the main preventive measure against train derailment on bridge.
Jun Xiang Qing-Yuan Zeng
School of Civil Engineering and Architecture, Central South University, Changsha 410075, P.R. China
国际会议
长沙
英文
1422-1433
2007-11-19（万方平台首次上网日期，不代表论文的发表时间）