予め力学的境界条件に関する情報がない矩形複合材積層板上に作用する点衝撃荷重の荷重位置·荷重履歴の同定方法

抄録

The inverse method has been developed for identifying force locations and force histories of point impacts acting on rectangular composite laminated plates without information on mechanical boundary conditions. The values of acceleration at several points on the plates are used as the measured values. Algorithms for the identification using a finite element method are presented for single and double point impacts. Then the mechanical boundary conditions at the edge of the plates are also identified together with the force locations and force histories of point impacts. In the numerical examples, the identification for cross-ply laminated plates and balanced laminated plates is examined in the cases of the measurement values with and without measurement noise. The validity of the present method is shown by comparing the identification results with exact ones.