Lyapunov Exponent Analysis On Real-Time Monitoring Information Of Extractive Structure Health Based On Chaos Time Sequence
Jianting Zhou, Yue Chen, Lu Yin · Intelligent Automation & Soft Computing · 2010
Abstract The article has made a maximum Lyapunov exponent analysis of ASCE Benchmark and the health monitoring data of Chongqing Masangxi Bridge using non-linear theory and chaos time sequence. The maximum Lyapunov exponents in the two kinds of structural monitored data are both over zero, indicating that in the structural system chaos phenomenon has appeared. Meanwhile, experiments have shown that the maximum Lyapunov exponent is sensitive of the amount of samples and the time delay. So, to compute the chaos index, the amount of samples and the time duration are of importance.