A framework for train derailment risk analysis

来源期刊:中南大学学报(英文版)2019年第7期

论文作者:张哲豪 钟明华 张宽勇 吴玉祥 高士峰 沈哲平

文章页码:1874 - 1885

Key words:derailment; performance; flange angle; equivalent conicity; reliability; risk; earthquake

Abstract: This study aims to develop a framework based on the Nadal formula to assess train derailment risk. Monte Carlo simulation was adopted to develop 10000 sets of random parameters to assess train derailment risk subject to the curvature radius of the track, the difference between the flange angle and the equivalent conicity, and accelerations from 250 to 989.22 gal during horizontal earthquake. The results indicated that railway in Taiwan, China has no derailment risk under normal conditions. However, when earthquakes occur, the derailment risk increases with the unloading factor which is caused by seismic force. The results also show that equivalent conicity increases derailment risk; as a result, equivalent conicity should be listed as one of maintenance priorities. In addition, among all train derailment factors, flange angle, equivalent conicity and unload factors are the most significant ones.

Cite this article as: CHUNG Ming-hwa, CHANG Che-hao, CHANG Kuan-yuan, WU Yu-shiang, GAO Shih-feng, SHEN Zhe-ping. A framework for train derailment risk analysis [J]. Journal of Central South University, 2019, 26(7): 1874-1885. DOI: https://doi.org/10.1007/s11771-019-4141-4.

有色金属在线官网  |   会议  |   在线投稿  |   购买纸书  |   科技图书馆

中南大学出版社 技术支持 版权声明   电话:0731-88830515 88830516   传真:0731-88710482   Email:administrator@cnnmol.com

互联网出版许可证:(署)网出证(京)字第342号   京ICP备17050991号-6      京公网安备11010802042557号