摘要
针对工程实际情况 ,从实测响应间的互相关函数入手 ,推导出适用于工作状态下的频域多参考点模态识别法 ,然后采用一飞机模型对该方法进行了试验验证。
It is difficult to measure the input forces of some operating structures. Only the operating response data can be used to identify modal parameters. A frequency domain poly reference modal identification method under operational conditions was presented on the basis of the cross correlation function of measured responses to solve the only output problem. The proposed method in this paper was applied to an airplane model.
出处
《航空学报》
EI
CAS
CSCD
北大核心
2002年第4期294-297,共4页
Acta Aeronautica et Astronautica Sinica
基金
航空工业总公司九五规划 (62 .2 .2 .1)资助项目
