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Transformation method with wavelet orthogonal operator for dynamic load identification

YANG Ping 1, LI He qi 2, LI You tang 1 (1. College of Mechano Electronic Engineering, Gansu Univ. of Tech., Lanzhou 730050, China; 2. College of Materials Science and Engineering, Gansu Univ. of Tech., Lanzhou 730050, China) [WT4”HZ]  
The discrete wavelet orthogonal operator(viz. Harr wavelet orthogonal operator) is introduced to dynamics equation of dynamic load identification, so that a new method of dynamical load identification transformation method with wavelet orthogonal operator is obtained. This method can recover high order modes information and overcome the shortcomings of Fourier transform. Thereby, the precision of dynamic load identification is improved. This new method is verified by illustration of mass spring system.
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