【摘要】 本文利用这特征值理论，提出了一种参数型静力模型修正方法．根据特征方程，建立起关于设计参数的非线性方程组，把模型修正问题转化为用Ｎｅｗｔｏｎ法求解非线性方程组的问题．本文给出的数值求解方法具有精度高、收敛性好、计算过程简洁的特点，数值仿真结果表明了该方法有很好的效果．更多还原

【Abstract】 In thes paper, a parameter-type method of updating the finite element model is Presented based on inverse eigenvalue problem theory. According to the eigen-equation, nonlinear equations are established in terms of design parameters. In doing so, the model updating problem is transformed into the Problem of solution for the nonlinear equations. This method, choosing the design parameters as the variables to be updated, makes the updated model keep the original physical features and has clear significance in engineering. A numerical simulated example is provided to illustrate the characteristics of this method. Good accuracy and convergency are achieved.更多还原