轻轴轮轨车辆转向架结构设计及车轮磨耗影响分析

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中图分类号：U270.2 文献标志码：A文章编号：1006-0316（2025）09-0022-06

doi：10.3969/j.issn.1006-0316.2025.09.004

Structural Design ofBogie for Light-Axle Rail Vehicles and Analysis of theImpact onWheel Wear

LEI Yue，MA Weihua，QING Longquan，LUO Shihui （State Key Laboratory of Rail Transit Vehicle System，Southwest Jiaotong University， Chengdu ， China ）

Abstract ：To adapt to the development ofrail vehicles and achieve the goal ofenergy conservation and emission reduction，anovel designof light-axle-loadrail vehicle systemis proposed.Thedesign draws onthelong-stator linear motor drive concept from normal-conductive high-speed maglev trains，and integrates the non-adhesive tractionand non-adhesive braking characteristics of maglev trains basedon traditional rail vehicles，which significantlyreduces axle loadwhile maintaining loadcapacity，therebyminimizingwheel-rail wearand extending wheel-set service life.A dynamic model isestablished using the multi-body dynamicssoftware SIMPACK to analyze the impacts of track excitation and vehicle weight on wheel-rail wear，and comparative studiesbetween thelight-axle-load vehicleand conventional metro systems is conducted.Theresults indicate that：track excitation significantly afects wheel wear only on large-radius curves; the wheel wear index under the AW3 condition is higher than that under AWo on smal-radius curves，while the opposite occurs on large-radius curves; conventional metro systems exhibit notably higher wheel wear index than light-axle-load vehicles，but the difference diminishes as the curve radius increases.

Key words ∵ rail vehicle;bogie;lightweight；dynamics；wear

减轻车辆重量可以改善车轮与轨道的接触条件。（剩余4659字）