1. Spatial Structures Research Center, Beijing University of Technology, Beijing 100124, China; 2. Key Lab of Urban Security and Disaster Engineering, MOE, Beijing 100124, China; 3. Datataker China Limited, Beijing 100124, China
Abstract：The traditional power spectrum density peak method is improved according to the feathers that the mode shape of the spatial lattice structures is dense .The average regularization power spectrum of all the test points is put forward, and on the basis of the characteristics of the mode shape in theory, and the above union sets are defined as the method of the modal identification results, besides, judgment criterion is discussed in this paper. The improved power spectrum density peak method can avoid the omission and overlapping of the identification of the frequency, the numerical example afterwards shows that the effect is good. A software is made based on the above theory and has been applied to the monitoring system of the stadium for Shenzhen Universiade.
张毅刚;刘才玮;吴金志;彭天明. 适用空间网格结构模态识别的改进功率谱峰值法[J]. , 2013, 32(9): 10-15.
ZHANG Yi-gang;;LIU Cai-wei;WU Jin-zhi;PENG Tian-ming. The improved power spectrum peak method applied in the modal identification field of the spatial lattice structure. , 2013, 32(9): 10-15.
2013, Vol. 32 
