论文部分内容阅读
提出结构动力模型物理参数的模态识别方法，它利用递归算法对结构进行解耦，只用实测的１个或２个模态数据即可识别结构物理参数．利用这种方法所识别的物理参数考虑了结构各杆件、各楼层之间的动态耦合效应及柱轴向变形的影响，使简化模型更接近原始模型，从而提高了动力反应的计算精度．给出了具体工程应用实例．
A modal identification method for the physical parameters of the structural dynamic model is proposed. It uses a recursive algorithm to decouple the structure. Only one or two measured modal data can be used to identify the structural physical parameters. The physical parameters identified by this method take into account the effects of the dynamic coupling between the structural members and each floor and the axial deformation of the column, which makes the simplified model closer to the original model, thereby improving the calculation accuracy of the dynamic response. Specific engineering application examples are given.