The invention relates to the field of measurement of rail traffic, in particular to a railway vehicle wheel rail longitudinal force testing method, which comprises the following steps: when a bullet train is started, runs at a constant speed or is braked, a trailer is braked and under the action of wheel rail longitudinal force, axles near left and right wheels are in a torsion state, and torsion shear stress is generated on the axles; arranging strain gauges on the axle to form a strain bridge circuit for eliminating bending stress formed by transverse force and vertical force on the surface of the axle; and converting the shear stress and the longitudinal force of the wheel rail. According to the invention, the longitudinal force of the wheel rail can be accurately measured, a basis is provided for the traction curve and brake logic design of a vehicle, and an accurate measurement scheme is provided for researching the relationship between wheel abrasion and the longitudinal force of the wheel rail.
本发明涉及轨道交通的测量领域,尤其是涉及一种铁道车辆轮轨纵向力测试方法,在动车启动、匀速运行或制动状态,拖车的制动状态,在轮轨纵向力作用下,左右侧车轮附近的车轴是受扭状态,在车轴上产生扭转切应力,在车轴上布置应变片组成应变桥路,用于消除横向力和垂向力在车轴表面形成的弯曲应力;然后换算切应力与轮轨纵向力。本发明可以精确测量轮轨纵向力,为车辆的牵引曲线和制动逻辑设计提供依据为研究车轮磨耗与轮轨纵向力的关系,提供了精确测量方案。
Method for testing longitudinal force of wheel rail of railway vehicle
一种铁道车辆轮轨纵向力测试方法
2024-10-25
Patent
Electronic Resource
Chinese
IPC: | G01L Messen von Kraft, mechanischer Spannung, Drehmoment, Arbeit, mechanischer Leistung, mechanischem Wirkungsgrad oder des Drucks von Fluiden , MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE / B61K Andere Hilfseinrichtungen für Eisenbahnen , OTHER AUXILIARY EQUIPMENT FOR RAILWAYS |
Steel rail section for railway vehicle wheel pair conveying
European Patent Office | 2015
|RAILWAY VEHICLE WHEEL AND METHOD FOR MANUFACTURING RAILWAY VEHICLE WHEEL
European Patent Office | 2019
|Wheel-rail system and rail transit vehicle traction/braking force distribution method
European Patent Office | 2022
|RAILWAY WHEEL AND RAIL ROUGHNESS ANALYSIS
British Library Online Contents | 2009
|