多相材料的柔性机构拓扑优化设计
发布时间：2019-08-06 20:02
【摘要】：基于变密度法建立了多相材料的插值模型,并建立了以结构输出点位移最大为目标、材料体积为约束的多相材料柔性机构拓扑优化数学模型。运用移动渐近线方法对微型柔性夹钳设计开展拓扑优化并对结果进行分析。结果表明:基于多相材料的柔性机构拓扑优化方法能大幅降低拓扑结构的最大应力水平,但也一定程度上减小了结构输出点的位移。整体而言,该方法具有可行性,能有效解决工程中遇到的因应力过大而导致的结构失效问题。
[Abstract]:Based on the variable density method, the interpolation model of multiphase materials is established, and the mathematical model of topological optimization of flexible mechanisms of multiphase materials is established, which aims at the maximum displacement of output points and restricts the volume of materials. The topology optimization of micro flexible clamp design is carried out by using moving asymptote method and the results are analyzed. The results show that the topology optimization method based on multiphase materials can greatly reduce the maximum stress level of the topological structure, but also reduce the displacement of the output point of the structure to a certain extent. On the whole, this method is feasible and can effectively solve the structural failure problem caused by excessive stress.
【作者单位】： 西北工业大学机电学院;
【基金】：国家自然科学基金项目(51375383) 陕西省自然科学基础研究计划项目(2017JM5001) 西北工业大学青年教师国际名校访学支持计划项目资助
【分类号】：TH122
本文编号：2523720
[Abstract]:Based on the variable density method, the interpolation model of multiphase materials is established, and the mathematical model of topological optimization of flexible mechanisms of multiphase materials is established, which aims at the maximum displacement of output points and restricts the volume of materials. The topology optimization of micro flexible clamp design is carried out by using moving asymptote method and the results are analyzed. The results show that the topology optimization method based on multiphase materials can greatly reduce the maximum stress level of the topological structure, but also reduce the displacement of the output point of the structure to a certain extent. On the whole, this method is feasible and can effectively solve the structural failure problem caused by excessive stress.
【作者单位】： 西北工业大学机电学院;
【基金】：国家自然科学基金项目(51375383) 陕西省自然科学基础研究计划项目(2017JM5001) 西北工业大学青年教师国际名校访学支持计划项目资助
【分类号】：TH122
【相似文献】
相关期刊论文 前2条
1 郭景坤;关于多相材料的研究[J];材料导报;2000年07期
2 孙士平;张卫红;;多相材料微结构多目标拓扑优化设计[J];力学学报;2006年05期
，本文编号：2523720
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