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| A chaotic search method in parameters inversion of porous media |
| Revised:February 13, 2001 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7511/jslx20024085 |
| KeyWord:porous media,parameter inversion,chaotic search,boundary element |
| Wei Peijun \ Zhang Zimao \ Wang Yuesheng |
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| Abstract: |
| By virtue of the ergodicity and no\|repeat of chaos, the chaotic search method is used in the parameters inversion problem of porous media. Firstly, the boundary element method is applied to perform the mapping from material parameters to dynamic displacement on the surface of semi\|space of the porous media. Secondly, the parameter inversion problem is reduced to the optimal problem by defining of the relation function between the dynamic displacement computed and that measured. At last, the zoom chaotic search method is designed to find the material parameters corresponding to the global maximum of relation function. The simulation example indicates the feasibility and effective of the zoom chaotic search method. |
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