Dynamic flexibility and eigenvector derivatives
  
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DOI:10.7511/jslx19993044
KeyWord:dynamic stiffness,dynamic flexibility,power series,eigenvector derivative
Zhang Dewen  Huang Xiaoming
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Abstract:
      Up to now, when all direct methods for computing eigenvector derivatives are used to solve the derivatives of many eigenvectors, they are tremendous time consuming. In order to save the computer time in the calculation of many eigenvector derivatives, an efficient method for computing eigenvector derivatives is developed in this paper. This method is based on two mathematical LEMMAs and a developed mixed power series of the dynamic flexibility presented in this paper and shows the higher computational efficiency as compared with other direct methods, especially in multiple eigenvector derivative calculation of a large design system.