基于Hermitian小波有限元的叶轮叶片载荷识别

New Hermitain cubic spline wavelet on interval (HCSWI) shell elements were proposed for the load identification of centrifugal compressor impeller blades. The Hermitian wavelet shell elements and the inverse Newmark algorithm were applied to construct the transfer matrix between excitation and response signals. The load identification was solved based on the transfer matrix method and response signals. The accuracy of the Hermitian wavelet shell elements was verified by comparing the load identification results with those by ANASYS elements as well as the experimental data. The Hermitian wavelet finite element method is of the advantage of high accuracy. In practical engineering, the commercial software ANSYS can be used to analyze a complex mechanical model, however, for the crucial components, the Hermitian wavelet elements might be used instead of ANSYS elements.