轮轨接触力无线遥测系统的研究与开发
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中图分类号：TB9；U270.7；TP368.1 文献标志码：A 文章编号：1674-5124（2025）06-0123-09
引用格式：唐家明，方聪聪.轮轨接触力无线遥测系统的研究与开发[J].中国测试，2025，51（6）：123-131.TANGJiaming，FANG Congcong.Researchanddevelopmentofwirelesstelemetrysystemforwhel-railcontactfore[J].China Measurement&Test，025，
Research and development of wireless telemetry system for wheel-rail contact force
TANG Jiaming1 23，， FANG Congcong1 1，2，3
（1. Key Laboratory of Traffc Safety on Track，School of Traffic & Transportation Engineering， Central South
University， Changsha 410075，China; 2.Joint International Research Laboratory ofKeyTechnology for RailTraffic
Safety，Central SouthUniversityChangsha41O75，China;3.National&LocalJointEngineering Research Centerof Safety Technology for Rail Vehicle， Central South University， Changsha 41o075， China）
Abstract： The continuous，real-timeand accurate measurement of wheel-rail contact force is an important means to realize the monitoring and evaluation of vehicle running safety，stability and comfort. In this paper， basedon the finite element method，the whel-rail contact modelisestablished，and the mathematical relationship between the rim strain and the wheel-rail contact force is obtained. Based on the strain gauge Wheatstone bridge and Bluetooth wireless communication technology， a wireless telemetry system for wheelrail force is designedand developed.The system includes the hardware and software ofthe lowercomputerand the data acquisition and analysis software of the upper computer. The feasibility and accuracy of the telemetry system are verified by the whel-rail force measurement of the wheel hub strain measurement and the collision sled rim strain measurement. Compared with the commonly used force measuring whelset method， it does not need to process a special wheelset，and can realize the in-situ measurement of whee-rail force， which has the advantages of low cost and convenient implementation.
Keywords： wheel-rail contact; strain; finite element analysis; wireless communication
0 引言
轮轨接触力是影响列车动力学性能、安全与平稳性的关键因素。（剩余10497字）