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| 基于粒子群-最小二乘法的岩石流变模型参数反演 | |
| 引用本文： | 罗润林,阮怀宁,朱昌星.基于粒子群-最小二乘法的岩石流变模型参数反演[J].辽宁工程技术大学学报(自然科学版),2009,28(5). |
| 作者姓名： | 罗润林 阮怀宁 朱昌星 |
| 作者单位： | 1. 桂林理工大学,地球科学学院,广西,桂林,541004 2. 河海大学,岩土工程研究所,南京,210098 3. 可南理工大学,土木工程学院,河南,焦作,454000 |
| 基金项目： | 国家自然科学重点基金资助项目(50539090):国家自然科学基金资助项目 |
| 摘 要： | 为解决参数数量随加载级数增加而成倍增加,对参数反演带来困难这一问题,在分级加载蠕变模型中,根据粒子群算法和最小二乘法对参数反演的特点,先采用粒子群算法(PSO)对模型参数进行反演得到一个全局次优粒子,再将其作为初始值对模型参数进行最小二乘法反演.工程实例表明,粒子群-最小二乘法反演可以很好地应用于分级加载蠕变模型的参数反演. |
| 关 键 词： | 粒子群算法 最小二乘法 参数反演 蠕变模型 |
Parameter inversion of rock creep model based on PSO-least square method |
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| LUO Runlin,RUAN Huaining,ZHU Changxing.Parameter inversion of rock creep model based on PSO-least square method[J].Journal of Liaoning Technical University (Natural Science Edition),2009,28(5). | |
| Authors: | LUO Runlin RUAN Huaining ZHU Changxing |
| Institution: | LUO Runlin1,RUAN Huaining2,ZHU Changxing3(1.School of Earth Science,Guilin University of Technology,Guilin,Guangxi 541004,China,2.Institute of Geotechnical Engineering,Hehai University,Nanjing 210098,3.School of Civil Engineering,Henan Polytechnic University,Jiaozuo,Henan 454000,China) |
| Abstract: | It is very important to invert the parameter of rock creep model based on the experimental results for understanding the behavior of rock mechanics.The step-load creep model is adopted to describe rock creep behavior under step load.It becomes difficult to invert parameter values as the number of parameters increases with the load steps.Based on the characteristics of PSO and Least Square,a new parameter inversion method is proposed,which proceeds as 1) the model parameters are inverted using PSO;2) Least S... |
| Keywords: | PSO least square parameter inversion creep model |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |