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简谐力激励下结构拓扑优化与频率影响分析

刘虎 张卫红 朱继宏

刘虎, 张卫红, 朱继宏. 简谐力激励下结构拓扑优化与频率影响分析[J]. 力学学报, 2013, 45(4): 588-597. doi: 10.6052/0459-1879-12-253
引用本文: 刘虎, 张卫红, 朱继宏. 简谐力激励下结构拓扑优化与频率影响分析[J]. 力学学报, 2013, 45(4): 588-597. doi: 10.6052/0459-1879-12-253
Liu Hu, Zhang Weihong, Zhu Jihong. STRUCTURAL TOPOLOGY OPTIMIZATION AND FREQUENCY INFLUENCE ANALYSIS UNDER HARMONIC FORCE EXCITATIONS[J]. Chinese Journal of Theoretical and Applied Mechanics, 2013, 45(4): 588-597. doi: 10.6052/0459-1879-12-253
Citation: Liu Hu, Zhang Weihong, Zhu Jihong. STRUCTURAL TOPOLOGY OPTIMIZATION AND FREQUENCY INFLUENCE ANALYSIS UNDER HARMONIC FORCE EXCITATIONS[J]. Chinese Journal of Theoretical and Applied Mechanics, 2013, 45(4): 588-597. doi: 10.6052/0459-1879-12-253

简谐力激励下结构拓扑优化与频率影响分析

doi: 10.6052/0459-1879-12-253
基金项目: 国家自然科学基金(90916027, 51275424, 11002113, 11172236); 国家重点基础研究发展计划(2011CB610304); 西北工业大学基础研究基金(JC20120229)和爆炸科学与技术国家重点实验室(北京理工大学)开放课题(KFJJ13-6M)资助项目.
详细信息
    通讯作者:

    张卫红,教授,主要研究方向:结构优化设计.E-mail:zhangwh@nwpu.edu.cn

  • 中图分类号: O327

STRUCTURAL TOPOLOGY OPTIMIZATION AND FREQUENCY INFLUENCE ANALYSIS UNDER HARMONIC FORCE EXCITATIONS

Funds: The project was supported by the National Natural Science Foundation of China (90916027, 51275424, 11002113, 11172236), the National Basic Research Program of China (2011CB610304), NPU Foundation for Fundamental Research (JC20120229) and the opening project (KFJJ13-6M) of State Key Laboratory of Explosion Science and Technology (Beijing Institute of Technology).
  • 摘要: 研究了简谐力激励下以结构指定位置稳态阶段位移响应幅值为目标函数、结构体积为约束的拓扑优化设计问题. 通过在频域上使用模态叠加法求解简谐力激励下的位移响应, 分析了激励频率和作用方向对位移响应幅值及其优化结果的影响.引入材料属性的多项式插值惩罚模型, 有效消除了动力学拓扑优化局部模态现象.分析了高频激励下位移响应幅值拓扑优化存在的稳定性差、结构不连续等问题, 并通过引入附加静位移约束, 获得了清晰合理的结构形式.理论分析和算例结果揭示了位移响应幅值优化过程中结构模态的变化规律, 验证了该拓扑优化模型的有效性.

     

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出版历程
  • 收稿日期:  2012-09-19
  • 修回日期:  2013-04-25
  • 刊出日期:  2013-07-18

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