Applied Mathematics and Mechanics (English Edition) ›› 1999, Vol. 20 ›› Issue (6): 690-697.

• Articles • Previous Articles     Next Articles

COMPUTATION OF FREQUENCIES AND DAMPING RATIOS FOR ADAPTIVE STRUCTURES

Zhang Lianwen1, Xia Renwei2, Zeng Guangwu1   

  1. 1. Laboratory of Ship Structure Design, Faculty of Traffic Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, P. R. China;
    2. Faculty Space Navigation, Beijing University of Aeronautics and Astronautics, Beijing 100083, P. R. China
  • Received:1998-07-27 Revised:1999-02-18 Online:1999-06-18 Published:1999-06-18
  • Supported by:
    the National 863 Program Foundation of China(863-2-4-4-4)

Abstract: In this paper,a new technique of state vector approach to solving damping ratios of adaptive structures is proposed,by which the state matrix can be analytically conducted the Cholesky decomposition,providing that the mass matrix is derived by lumped method.In this case,not only the computational accuracy is raised,but also the numerical operations are reduced.Finally,some numerical results are presented to show that the solution method is simple and efficient.

2010 MSC Number: 

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