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| 岩体演化的非线性动力学模型与稳定性分析 | |
| 引用本文： | 孙瑛琳,许传华,韩绍瑛.岩体演化的非线性动力学模型与稳定性分析[J].岩土工程技术,2008,22(6):286-288. |
| 作者姓名： | 孙瑛琳 许传华 韩绍瑛 |
| 作者单位： | 1. 长春工程学院,吉林长春,130021 2. 中钢集团马鞍山矿山研究院有限公司,安徽马鞍山,243004 3. 河北中核岩土工程有限责任公司,河北石家庄,9050021 |
| 摘 要： | 以时间序列为基础，应用支持向量机建立岩体演化的非线性动力学模型，依据Lyapunov指数给出最长可预报时间，并通过函数拟合、变量代换将其化为标准的尖点突变模型，利用突变理论对其进行稳定性分析。结果表明，该模型预测效果理想，并具有良好的推广能力。 |
| 关 键 词： | 支持向量机 时间序列 非线性动力学 尖点突变 |
Nonlinear Dynamics Model of Rock Evolution and Stability Analysis |
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| Sun Yinglin,Xu Chuanhua,Han Shaoying.Nonlinear Dynamics Model of Rock Evolution and Stability Analysis[J].Geotechnical Engineering Technique,2008,22(6):286-288. | |
| Authors: | Sun Yinglin Xu Chuanhua Han Shaoying |
| Institution: | Sun Yinglin, Xu Chuanhua, Han Shaoying (1. Changchun Institute of Technology,Changchun Jilin 130021; 2. Geotechnical Department of Maanshan Institute of Mining Research, Maanshan Anhui 243004; 3. Nuclear Industry of China Geotechnical Engineering CO. , LTD, Shijiazhuang Hebei 050021 China) |
| Abstract: | On the basis of displacement-time series, a nonlinear dynamics model is set up with support vector machine. The longest forecasting time is provided according to Lyapunov exponents and a standard cusp catastrophe model can be obtained through varibte substitution and function fitting. The results shows that this model can make satisfactory prediction results. |
| Keywords: | support vector machines displacement-time series nonlinear dynamics cusp catastrophe |
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