【摘要】 提出了一种基于优化算法和 GVT结果的结构质量模型修正方法。该方法利用模态正交性条件构造目标函数 ,并考虑结构总质量特性约束 ,利用 GVT结果对给定的粗糙的结构离散质量分布进行修正。数值仿真表明 ,该方法提高了结构质量模型的精度 ,使修正后的离散质量分布与真实的离散质量分布吻合更多还原

【Abstract】 A structural mass model updating technique based on optimization algorithm and GVT results was presented. Making use of modal orthogonality condition and GVT results, we can construct an object function, concerning structural mass character constraints, the offered coarse structural discrete mass distribution is modified. Numerical simulation indicates that this method improves the precision of structural mass model and it makes the modified coarse discrete mass distribution match with the really discrete mass distribution.更多还原