由实测应变响应识别结构动态载荷

Identification of structural dynamic load from measured strain response

研究基于实测应变响应的结构动载荷识别问题 ,推导出结构测点应变模态矩阵 ,在模态分解的基础上应用精细逐步积分法构造了一种高效精确的载荷识别公式。数值算例验证了本方法的识别精度是好的。

This paper studies the problem of structural dynamic load identification based on measured strain response, deduces the strain modal matrix of structure measured points, and constructs an efficient and precise equation of load identification by using the high precision integration scheme based on modal decoupling. Numerical examples show the high identification precision of the present method.