结构上任意两点动态响应的传递关系分析

Transmission Relation Analysis of Dynamic Response at Any Two Points on Construction

工程实际中,由于不能获取结构所承受的外载荷而导致无法利用数值计算方法求解结构上关心位置动态响应的问题,提出了采用数值计算和试验相结合的解决问题的途径。通过对结构模态分析,提取出结构相关模态参数,并建立结构上任意两点动态响应的传递关系,然后通过其中一点动态响应的测试数据来计算其它任意点的实际动态响应。

In engineering practice, the dynamic response on concerned position can＇t be solved directly by numerical calculation method without obtaining the outer load carried on the construction. So this paper proposed the solution of combination of numerical calculation and testing. The transmission relation of dynamic response at any two points of the construction can be established throw, h model analysis of construction and the model parameters concerned, and then the actual dynamic response data at any other point can be obtained through the test data of dynamic response at any point.