The finite element dynamic response analysis under wind loads for antenna of china mobile based on limited vibration signals
Liu Jing-bo1; Guo Dong1;Wang Zong-gang2; Fei Bi-gang1;Wang Qian-yuan3
1.Department of Civil Engineering , Tsinghua University, BeiJing 100084, China; 2. Key Laboratory of Structural Engineering and Vibration of China Education Ministry, Tsinghua University, BeiJing 100084, China; 3.China Mobile Communication Corporation BeiJing Branch, BeiJing 100007, China
Abstract：This paper presents a new method to combine the finite element analysis and limited vibration signals measured in the spot.The dynamic response of structures (antennae of China Mobile) under practical wind loads can be acquired by it. Firstly, the limited vibration signals of structures are measured under impulsive wind loads, such as acceleration time history and frequency spectrum. Secondly, the time history of impulsive wind loads is simulated by equation of structure motion and then it is applied to the model of finite element. By this finite element analysis, the correction factor k between simulated wind loads and practical wind loads is obtained. Finally, the correction wind loads is applied to this model again. The internal forces of structure are gained under practical impulsive wind loads. It shows that the finite element analysis gets the results in accordance with that of experiment, which provides a easy method for total process analysis of structures under impulsive wind loads.
刘晶波;郭 东;王宗纲;费毕刚;王潜渊 . 基于有限振动信号的某移动天线有限元风荷载动力反应分析[J]. , 2011, 30(9): 21-25.
Liu Jing-bo;Guo Dong;Wang Zong-gang;Fei Bi-gang;Wang Qian-yuan. The finite element dynamic response analysis under wind loads for antenna of china mobile based on limited vibration signals. , 2011, 30(9): 21-25.
2011, Vol. 30 
