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| A shifted-poles and multiple modal acceleration method for computing complex mode shape derivatlves |
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| DOI：10.7511/jslx19952027 |
| KeyWord:modes of vibration/sensitivity analysis,complex mode,modal acceleration method |
| Zeng Qinghua |
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| Abstract: |
| Computing the derivatives of complex mode shapes is regarded as calculating the struc-tural response to harmonic exciting in this paper.Using multiple modal accelerations andshifted-poles,a universal method to calculate the mode shape derivatives has been devel-oped. The method possesses the clear mathematical and physical meaning,and all availablemodal superposition methods would be directly obtained from the proposed method.Numeri-cal examples show that the method is correct and efficient. |
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