【摘要】 用试验数据确定刚度矩阵中的模型误差位置已有所研究。本文解决的是对处于已确定误差区域中的刚度元素进行修正的问题。首先，与误差元素有关的一个模型被导出，该模型称为局部误差模型，与总刚度阵相比，它降低了阶数，减少了修正量。其次，成功地采用了一种逆特征值方法修正模型误差，数值结果证明该方法具有很好的效果。更多还原

【Abstract】 The location of model errors in a stiffness matrix by using test data has been investigated by the others.The present paper deals with the problem of updating stiffness elements in the erroneous areas. Firstly,a model that bears relation to erroneous elements only is derived.This model is termed local errors model,which reduces orders and computational loads compared with global stiffness matrix. Secondly,an inverse eigenvalue method is used to update model errors. The results of a numerical experiment demonstrate that the method is quite effective.更多还原