| 模拟地震的弹簧滑块模型的混沌运动 |
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| 引用本文： | 季颖,高原,陈颙.模拟地震的弹簧滑块模型的混沌运动[J].东北地震研究,1995(1). |
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| 作者姓名： | 季颖 高原 陈颙 |
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| 作者单位： | 国家地震局分析预报中心，，国家地震局 |
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| 摘 要： | 我们构造了一种自由度为２的双弹簧滑块系统，讨论模型参数的不均匀性和滑块间的相互作用与复杂现象的关系。假定滑块在所受力小于其静摩擦力时保持静止，因此，只有发生了滑动，两滑块所受力之差才改变。如果我们以两滑块受力之差为变量，就可以构造一种一维的映射。这种映射直观地显示了系统的演化，反映了方程终态解的形态。结果表明，用混沌运动来描述地震现象可能是较为合理的。
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| 关 键 词： | 混沌理论 地震模型 弹簧滑块模型 |
CHAOTIC MOTION OF SPRING-BLOCKS SYSTEM FOR EARTHQUAKES MODELLING |
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| Ji YingGao Yuan Chen YongCenter for Analysis and Prediction,State Seismological Bureau,Beijing ,ChinaState Seislnological Bureau,Beijng ,China.CHAOTIC MOTION OF SPRING-BLOCKS SYSTEM FOR EARTHQUAKES MODELLING[J].Seismological Research of Northeast China,1995(1). |
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| Authors: | Ji YingGao Yuan Chen YongCenter for Analysis and Prediction State Seismological Bureau Beijing ChinaState Seislnological Bureau Beijng China |
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| Institution: | Ji Ying)Gao Yuan Chen Yong1)Center for Analysis and Prediction,State Seismological Bureau,Beijing 100036,China2)State Seislnological Bureau,Beijng 100036,China |
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| Abstract: | The two spring-blocks system with 2 freedom degrees in earthquakesimulation is built up in this paper. The effect of non-homogeneity of model parameters andthe interactiOn between blocks on the complicated phenomena are discussed based on our sys-tem,It is supposed that blocks keep motionless until the driving forces subjected by blocksexceeds the static friction force,so the difference of forces on two blocks will change only af-ter slip motion has begun. One-dimension mapping may be got if we put the difference of-forces on two blocks as a variable,This mapping directly shows the system evolution and theformation of ultimate solutions. The results indicate that it may be reasonable to explainearthquakes evolution using chaotic motion theory. |
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| Keywords: | Spring-block model Chaotic motion Earthquake |
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