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METHOD OF MEASURING TANGENTIAL FORCE AND WHEEL LOAD WHICH INTERACT BETWEEN RAILWAY VEHICLE WHEEL AND RAIL AND METHOD OF MEASURING AXLE TORSION
METHOD OF MEASURING TANGENTIAL FORCE AND WHEEL LOAD WHICH INTERACT BETWEEN RAILWAY VEHICLE WHEEL AND RAIL AND METHOD OF MEASURING AXLE TORSION
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机译：铁路车轮与钢轨相互作用时切向力和车轮载荷的测量方法及轴扭测量方法
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摘要
PROBLEM TO BE SOLVED: To provide a method of accurately measuring a tangential force interacting between a wheel and a rail without providing a new strain gage bridge for tangential force measurement.;SOLUTION: This invention provides a method of measuring a tangential force which interacts between a rail and a railway vehicle wheel by using a PQ wheel set. This method measures a strain of a running wheel by a wheel load measuring strain gage for detecting wheel's radial strains. A relationship of tangential forces and strains read by strain gages for measurement of tangential forces is pre-determined by comparing a strain at each strain gage position when only a wheel load is working, and a strain at each strain gage position when only a tangential force is working. The tangential force working on a running PQ wheel set is obtained from these strains and the predetermined relationship. While a railway vehicle is running, this method can actually measure tangential forces required to improve the curve running, high-speed running, and acceleration/deceleration performances from the output of existing strain gages for wheel load measurement without increasing the number of test points.;COPYRIGHT: (C)2009,JPO&INPIT
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