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首页> 美国政府科技报告 >A system identification technique based on the random decrement signatures. Part 2: Experimental results
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A system identification technique based on the random decrement signatures. Part 2: Experimental results

机译：一种基于随机减量签名的系统识别技术。第2部分：实验结果

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摘要

Identification of the system parameters of a randomly excited structure may be treated using a variety of statistical techniques. Of all these techniques, the Random Decrement is unique in that it provides the homogeneous component of the system response. Using this quality, a system identification technique was developed based on a least-squares fit of the signatures to estimate the mass, damping, and stiffness matrices of a linear randomly excited system. The results of an experiment conducted on an offshore platform scale model to verify the validity of the technique and to demonstrate its application in damage detection are presented.

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