High-speed train operation kinetic parameter detection method
A technology of dynamic parameters and high-speed trains, applied in the direction of railway vehicle testing, etc., can solve the problem that the related technology of parameter identification is in its infancy, and achieve the effect of reliable technical support
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[0022] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:
[0023] Such as figure 1 As shown in Fig. 1, a method for detecting the dynamic parameters of high-speed train operation takes the dynamic state of the high-speed train as the monitoring object, mixes on-site test technology and dynamic simulation technology, and measures the dynamic response information of each test point when the high-speed train is running on the line , and the test signal is analyzed and processed by the frequency domain power spectrum to extract the dynamic response characteristics of the vehicle components, the random vibration numerical simulation power spectrum of the vehicle system is consistent with the power spectrum of the line test, and the basic equation of dynamic parameter detection is established, and then the trust region method is applied The L-M solution algorithm obtains the least squares solution of the basi...
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