大坝渗流观测数据中的混沌现象  

Chaos Phenomena from Observed Data of Dam Seepage

作　　者：钱镜林[1] 张晔[1] 

机构地区：[1]浙江省水利河口研究院,浙江杭州310027

出　　处：《水利与建筑工程学报》2005年第4期36-38,共3页Journal of Water Resources and Architectural Engineering

摘　　要：探索性研究了大坝渗流观测数据中的混沌现象。文章首先采用互信息量法选择时间延迟τ,然后根据Takens重构相空间理论对大坝渗流观测数据进行相空间重构。作为实例研究,计算出了某水库大坝的渗流观测数据序列的最大Lyapunov指数为正,证明了在大坝渗流观测数据中存在混沌现象。The observations on dam are analyzed tentatively to show the chaos phenomena in this paper. First, the mutual information method is employed to choose the time delay（ r ）, then the phase-space is reconstructed on Takens phase - space reconstruction theory. As a case study, the largest Lyapunov exponent from the observations on a certain dam is calculated to be positive to prove that there exist the chaos phenomena in the observed data.

关 键 词：混沌 渗流 观测数据 

分 类 号：TV698.12[水利工程—水利水电工程]