Sparse representation method for dynamic load identification of mechanical structure
A dynamic load identification and mechanical structure technology, applied in special data processing applications, instruments, electrical digital data processing, etc., to achieve the effect of strong stability, high identification accuracy, and solving the problem of dynamic load identification
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[0021] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. It should be emphasized that the following descriptions are only exemplary, and the application objects of the present invention are not limited to the following examples.
[0022] In one embodiment, the present invention discloses a sparse characterization method for dynamic load identification of a mechanical structure, wherein the method includes the following steps:
[0023] S100, measuring the frequency response function between the dynamic load action point of the mechanical structure and the response point of the mechanical structure, and further calculating the transfer matrix;
[0024] S200. Measuring a response signal generated by a dynamic load acting on the mechanical structure;
[0025] S300. According to the dynamic load, select basis functions to construct a sparse representation dictionary;
[0026] S400. Construct a dynamic load...
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