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目前结构动力系统的模态识别,已引起人们的重视.在算法上除利用频域法外,近来时域法已日益发展.本文利用确定性模型系统的的强迫振动响应信息对系统的刚度和阻尼结构参数进行了认别.提出两种直接算法,1.Householder递推法.2.积分法.并作了模拟计算,结果表明它们具有计算简单、存贮量小和计算稳定的特点,便于在线识别.
At present, the modal identification of structural dynamic system has attracted people’s attention. In addition to the use of frequency domain method, the time domain method has been developing recently. In this paper, the system of forced vibration response deterministic model of the stiffness and Damping structure parameters were identified.We put forward two direct algorithms, 1.Householder recursive method.2. Integral method. And made a simulation calculation, the results show that they have the characteristics of simple calculation, small storage and stable computing, easy Online recognition.