| 柳葆生,刘渝.成形过程数值模拟的张量时空求解策略[J].计算力学学报,1998,15(1):21~31 |
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| 成形过程数值模拟的张量时空求解策略 |
| A strategy of tensorial time space algorithm for numerical simulation of forming process |
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| DOI：10.7511/jslx19981004 |
| 中文关键词: 成形过程 数值模拟 非增量算法 张量时间函数 |
| 英文关键词:forming process, numerical simulation, non incremental algorithm, tensorial time function, |
| 基金项目:国家自然科学基金 |
| 柳葆生 刘渝 |
| 西南交通大学工程科学研究院 |
| 摘要点击次数: 1187 |
| 全文下载次数: 7 |
| 中文摘要: |
| 成形过程的数值模拟和分析涉及几何、材料、接触摩擦等高度非线性的耦合作用，采用传统的增量算法会导致巨大计算量。本文建议采用张量时间函数的非增量时空算法，在整个时间和空间域上迭代求解。由于采用新的分离变量构思，以张量表达时间函数，可提高问题求解的速度和精度。但对问题的列式和数值求解方法提出了更高的要求。文中讨论其方法与数值实施。 |
| 英文摘要: |
| Contrast to the incremental schema, an algorithm which has the high efficiency is proposed for numerical simulation of forming process with the inclusion of geometrical, material, contact frictional non linearities. Its non incremental scheme features an iterative solution procedure on entire time and space domain. Because of tensorial time functions is used for the newer variable separation, a higher requirement for formulation of the problem and numerical resolution methods is applied. On the other hand, the achievement presents as a higher resolution speed and accuracy. A discussion of its applied methods and numerical realization is made in this paper. |
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