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| Multiscale symplectic perturbation method for FPU equation |
| Received:May 13, 2014 Revised:August 19, 2014 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7511/jslx201505002 |
| KeyWord:FPU symplectic perturbation multiscale |
| Author | Institution |
| 吴锋 |
大连理工大学 工业装备结构分析国家重点实验室 工程力学系, 大连 |
| 高强 |
大连理工大学 工业装备结构分析国家重点实验室 工程力学系, 大连 |
| 钟万勰 |
大连理工大学 工业装备结构分析国家重点实验室 工程力学系, 大连 |
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| Abstract: |
| FPU equation is a classical nonlinear system,which involves the multiscale problem.Herein,a multiscale symplectic perturbation method is developed for the FPU equation.The proposed method could produce the results at different scales,calculate precisely in a long time,overcome the stiff problem,compute with a big time step,and overcome the problem of numerical resonance.The numerical examples shown the efficiency of the proposed method. |
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