Research of Model Parameter Identification ITD Method Based on Velocity Response Signals
Based on the background of a big tower structure under environment random excitation, an ITD method based on the velocity response signal is presented in this paper. Firstly, by using the random decrement technique (RDT), the velocity free response signals are separated from those velocity random responses. Secondly, it is deduced an ITD method based on the velocity response signals and then take it used on a big tower structure. In the method, there have no need to integrate velocity signals to displacement signals, but identify model parameters from the velocity response signals directly, so the integral error can be avoided. Comparing the results from this method with those from traditional ITD method which based on displacement response and peak-picking (P-P) method, it is shown that the former is effective.
model parameter identification ITD random decrement technique environment random excitation
Jiang Xiaosong Tian Guang Wu Xiaofei Wang Liwei
Department of Aeronautic Electronic Engineering,The First Aeronautic Institute of Air Force,Xinyang Department of Artillery Engineering,Ordnance Engineering College,Shijiazhuang 050003 China Department of Aeronautic Electronic Engineering,The First Aeronautic Institute of Air Force,Xinyang
国际会议
厦门
英文
685-690
2010-05-22（万方平台首次上网日期，不代表论文的发表时间）