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用超声波传播仿真对轮轴接触压力引起的回波高度变化进行了定量评定,并用研究轮轴界面法向刚度变化的方法,试验研究了全尺寸轮对循环旋转弯曲时的回波高度变化。
The variation of the echo height caused by the contact pressure of the axle was quantitatively evaluated by the ultrasonic propagation simulation. The variation of the echo height of the full-size wheel on the cyclic rotation bending was studied by the method of studying the change of the normal stiffness of the wheel-shaft interface.