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| Single stochastic parameter identification with perturbation method for seepage problem |
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| DOI：10.7511/jslx20086146 |
| KeyWord:seepage,perturbation,stochastic,inverse problem,single parameter |
| YAO Lei-hua WANG Gui-he |
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| Abstract: |
| Stochastic inverse problem is discussed with Taylor series expansions and perturbation equation of random variable.A perturbation method for single stochastic parameter identification was put forward.The first order inverse criterion and the second order inverse criterion of the mean value are derived.Computational methods of the mean value and the variance about the single parameter are given.The improved Genetic algorithm is used for calculating the mean value and the statistical method is used for the variance.An example of stochastic hydraulic conductivity identification about Thies model is given.It is shown from calculation results that the method is simple and has good effectiveness. |
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