| 基于自组织规则的热力耦合解析 |
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| 引用本文： | 王安麟,吴仁智,杨蓉. 基于自组织规则的热力耦合解析[J]. 同济大学学报(自然科学版), 2007, 35(9): 1249-1253 |
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| 作者姓名： | 王安麟 吴仁智 杨蓉 |
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| 作者单位： | 同济大学,机械工程学院,上海,200092 |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | 为解决平面微小结构设计问题中的可变边界条件、多物理场耦合效应等解析难题,利用平面微小结构连续性单元同桁架单元应变能相等的机理,提出了基于元胞自动机的热力耦合解析方法.以发光二极管(LED)基板热力耦合现象为研究对象,通过LED基板温度、位移及热应力耦合的数值结果与有限元解析结果的比较,证明了方法的有效性.适用于平面微小结构的热力耦合规则的提出,为复杂多物理场条件下的微结构工程设计提供了一个具有灵活性的性能解析途径.
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| 关 键 词： | 热力耦合 元胞自动机 自组织规则 有限元 |
| 文章编号： | 0253-374X（2007）09-1249-05 |
| 修稿时间： | 2006-01-05 |
Self-Organizing Rule Method in Thermal-Mechanical Coupling Simulation |
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| WANG Anlin,WU Renzhi,YANG Rong. Self-Organizing Rule Method in Thermal-Mechanical Coupling Simulation[J]. Journal of Tongji University(Natural Science), 2007, 35(9): 1249-1253 |
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| Authors: | WANG Anlin WU Renzhi YANG Rong |
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| Affiliation: | School of Mechanical Engineering, Tongji University, Shanghai 200092, China |
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| Abstract: | The thermal-mechanical coupling method based on cellular automata is put forward on the basis of the mechanism that the strain energy is equal between continuum unit and truss unit in plane minute structure to solve the changeable boundary problem and multi-physical fields coupled problem in the minute structure design.The thermal-mechanical coupling numerical results of temperature,displacement and thermal stress on the LED base plate are obtained by cellular automata method.Compared with finite element method,cellular automata method proves to be feasible.The thermal-mechanical coupling method applicable to plane minute structure provides a flexible analytical way for engineering design of minute structure in the condition of multi-physical fields. |
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| Keywords: | thermal-mechanical coupled cellular automata self-organizing rule finite element method |
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