S型小半径曲线有轨电车车辆悬挂参数优化研究
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中图分类号：U211.5 文献标志码：A
Study on Vehicle Suspension Parameters Optimization of Tram Running on S-shaped Curve Lines with Small Radius
DangHongling'，Zhang Shuo²，Zhao Chen³，Lai Chenxiang³，Lou Ping （1.Guangzhou Metro Construction Management Co.，Ltd， Guangzhou 510330，China; 2.School ofCivil Engineering，Central South University，Changsha 41oo75，China; 3.Guangzhou Metro Design andResearch Institute Co.，Ltd， Guangzhou 51oo10，China
Abstract： In order to improve the driving safety and stability of trams passing through the S-shaped curve lines with small radius，the rational optimization of vehicle suspension parameters is proposed. Taking a tram line in Guangzhou as the engineering background， the dynamic model of vehicle-track coupling system was established by using the multi-body dynamics and finite element methods and the influence laws of vehicle suspension parameters onthe operational evaluation indicators such as vehicle stability index，wheel-rail force，derailment coefficient，and whel load reduction rate，were explored.By combining the optimal Latin hypercube sampling technique，BPneural network，and multi-objective genetic algorithm，theoptimized suggestions for the tram suspension parameters were obtained.The results show thatthe operational evaluation indicators of the vehicle are significantly improved after the optimization.Compared with before optimization，the derailment coefficentof the vehicle has decreased by more than 10% . The research results provide theoretical support for the optimization design of suspension parameters for trams.
Key words： trams; vehicle suspension parameters; multi-objective optimization; dynamic response of vehicle
track;neural networks; genetic algorithm
Citation format： DANG HL，ZHANG S， ZHAO C，et al. Study on vehicle suspension parameters optimization of tramrunning on S-shaped curve lines with smallradius[J].JournalofEast China Jiaotong University，2025，42 （4）： 61-69.
现代有轨电车的结构形式多样，主要包括单车型、浮车型和铰接型，其中单车型因车体受力均匀、编组灵活、爬坡能力强等特点在国内外得到广泛应用[1-5]。（剩余13536字）
