| 李晨,吴雄华.微分求积区域分裂法在裂缝问题上的应用[J].计算力学学报,2006,23(4):492~495 |
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| 微分求积区域分裂法在裂缝问题上的应用 |
| Application of differential quarature domain decomposition method to the problem with crack |
| 修订日期：2004-08-21 |
| DOI：10.7511/jslx20064092 |
| 中文关键词: 微分求积法(DQM) 区域分裂法(DDM) 微分求积区域分裂法 边界归化 |
| 英文关键词:DQDDM |
| 基金项目:国家高技术研究发展计划(863计划) |
| 李晨 吴雄华 |
| 同济大学应用数学系,上海200092 |
| 摘要点击次数: 1581 |
| 全文下载次数: 7 |
| 中文摘要: |
| 微分求积法DQM在处理裂缝问题时，会产生很大的误差。因此，本文用微分求积法结合不带重叠的区域分裂法DQDDM来求解。通过本文的讨论，可以看到DQDDM在处理裂缝问题时，在节点数目不多的条件下获得比较精确的解，同时计算量又不大。 |
| 英文摘要: |
| In this paper,a new method DQDDM(Differential Quadrature Domain Decomposition Method) is presented.We divide the computational domain into several non-overlapping subdomains,and DQM is applied in each subdomains respectively.Numerical boundary reduction technique independent of the basic solution of the differential equation is used.By eliminating the interior points and combining with the block matrix technique,the differential equation is reduced to linear algebraic equations which include the boundary points only.The complexity of the computation is reduced greatly.The numerical results are satisfactory. |
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