<正>提出一种结构动力学模型的修正方法,该方法首先利用模态理论的正交关系,建立了结构初始质量和刚度矩阵的修正方程,然后利用一种数值稳定的迭代法求修正参数。通过模型修正的实例表明,修正后模态参数与实测结构的模态参数吻合较好。

A method for the modifying structural dynamical model is proposed in this paper.Based upon the orthogonal equation of model theory,updating equations about the mass and stiffness matrices of the structure are constructed at first and then,a stable iterative method is presented to solve the modified structural parameters.A numerical example is given.A better agreement between updating and experimental model parameters is obtained.