Abstract:In this paper, the displacement and speed response of the structure as the state variable. In order to solve the state equation, the Lypaunov artificial small parameter method is used, and a new series form of analytical solution is presented. The series solution can also be used to solve nonlinear dynamics equations. Hornor's scheme is applied to the calculation of series solution, and the computation efficiency and stability are greatly increased. At the same time, the corresponding computation format and steps for linear dynamics equations are established. The algorithm need only repetitious matrix-vector multiplication without inversion of H matrix,so the computation stability is good. The precise is only controlled by the series convergence number, so the algorithm can easily reach arbitrary-order accuracy in theory, and fit for parallel calculating and compression storage. At last, a numerical example is given to demonstrate the validity and efficiency of the method.
李秀梅;吴 锋;黄哲华. 结构动力方程一种新的级数形式的解析解[J]. , 2010, 29(6): 219-222.
LI Xiu-mei;WU Feng;HUANG Zhe-hua. A NEW SERIES FORM OF ANALYTICAL SOLUTION FOR THE STRUCTURAL DYNAMIC EQUATIONS . , 2010, 29(6): 219-222.