Multi-objective optimization of crashworthiness for double-layer thin-walled tube composite anti-climb energy-absorbing device in subway vehicles

Yuru Li, Hao Zhang, Tao Zhu, Zhiliang Wang, Liang Wang, Bo Sun, College of Vehicle and Traffic Engineering, Henan University of Science and Technology, Luoyang Rail Transit Group Co, State Key Laboratory of Rail Transit Vehicle System, Southwest Jiaotong University

Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit

Published online on January 09, 2026

Abstract

Proceedings of the Institution of Mechanical Engineers, Part F: Journal of Rail and Rapid Transit, Volume 240, Issue 5, Page 643-653, May 2026.
To enhance the crashworthiness of subway vehicles, this study presents a novel hybrid anti-climb energy-absorbing device. It integrates inner and outer double-layer thin-walled square tubes with honeycomb structures for synergistic energy absorption. To ...