| 震前地壳的动力学过程与超熵变化 |
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| 引用本文： | 张永志.震前地壳的动力学过程与超熵变化[J].大地测量与地球动力学,1992(4). |
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| 作者姓名： | 张永志 |
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| 作者单位： | 国家地震局第二地形变监测中心 西安 |
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| 摘 要： | 本文根据一个非线性动力学模型,应用耗散结构理论和Lyapunov稳定性理论,讨论了震前地壳在与外界同时存在物质和能量交换时的动力学行为和超熵判据,并分析了拉仲试验过程中的超熵变化。对100km~3体积的弹性体,用地壳的实际参数进行了形变与震级的对应关系计算。最后,分析和讨论了青海省门源6.4级地震前地壳的超熵变化过程。
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| 关 键 词： | 耗散结构理论 Lyapunov稳定性 熵产生 超熵产生 形变 弹性位能 |
EXTRA-ENTROPY PRODUCTION CHANGE AND DYNAMICS PROCESS BEFORE EARTHQUAKE |
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| Zhang Yongzhi.EXTRA-ENTROPY PRODUCTION CHANGE AND DYNAMICS PROCESS BEFORE EARTHQUAKE[J].Journal of Geodesy and Geodynamics,1992(4). |
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| Authors: | Zhang Yongzhi |
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| Abstract: | It is well known that earthquake is energy raleasing and accumulating process in the earth, and elastic energy is main parts of them. In this paper, according to the dissipative structure theory and Lyapunov's stability theory, the extra-entropy production criterion before earthquake,which indicate the behivour in the earth's crust, is given. On the other hand, the extra-entropy production criterion in tensile test is investigated and the relationship between magnitude and strain is calculated. Finally, the extra-entropy production process before Menyuan 6.4 Ms earthquake in Qinhai province in 1986 is discussed. |
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| Keywords: | dissipative structure theory Lyapunov's stability theory entropy production extraentropy production elastic energy |
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