Abstract
The loading power spectral density matrices of a cantilever beam of plastic glass subjected to stationary random excitations are identified by utilizing inverse pseudo excitation method using response measurements and structural frequency response functions. Numerical simulation is conducted for the purpose of optimal selection of sensor locations. Advantages of this method include its computational efficiency compared with other approaches and the benefit of alleviating the ill conditioning of frequency response function near some resonant frequencies. The identified loadings agree with actual ones perfectly well and this method is robust to random noise.
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