【摘要】 提出了通过测量位移来计算正交各向异性板弯曲刚度系数的迭代方法．此方法以有限元的反分析原理和系统辨识技术为基础，以正交各向异性板的弯曲刚度系数为位移的函数，当给出弯曲刚度系数的初值和位移测量值时，通过迭代计算可以得到弯曲刚度系数．给出了差分形式的迭代计算公式，讨论了位移测量模型、实验条件以及迭代计算中的收敛性等问题．实际算例表明，本文提出的方法对直接测试正交各向异性板的整体弯曲刚度系数是实用的．更多还原

【Abstract】 An inverse method for obtaining the coefficents of bending stiffness of composite orthotropic plate by determining displacement is presented in this paper. It is based on inverse analysis of finite element method and a system identification. The coefficients of bending stiffness of plate can be obtained as a function of displacement. It is obtained by iterative calculation given initial value of stiffness and displacement. The differential iterative calculation formula is obtained and the effect on the numerical solution caused by the changes of the model used in the analysis is discussed in detail. The results of applications show that inverse method presented here is practical and efficient.更多还原