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工程设计学报  2013, Vol. 20 Issue (1): 27-30    
工程设计理论、方法与技术     
基于ESO的夹层阻尼圆锯片减振降噪拓扑优化设计
 王婷, 姚涛, 段国林, 蔡瑾
河北工业大学 机械工程学院,天津 300130
Topological optimization design on vibration and noise reduction of laminated damping circular saw based on ESO
 WANG  Ting, YAO  Tao, DUAN  Guo-Lin, CAI  Jin
School of Mechanical Engineering,Hebei University of Technology,Tianjin 300130,China
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摘要: 针对夹层阻尼圆锯片的减振降噪拓扑优化设计,基于渐进拓扑ESO(evolutionary structural optimization)算法,寻求阻尼材料最佳布局. 导出了单元删除方法和损耗因子灵敏度计算方法,建立了拓扑优化流程,将损耗因子灵敏度作为衡量单元对结构损耗因子贡献量大小的标准,通过判断阻尼材料各单元对整体结构的减振效果,删除无效单元,得到满足刚度条件下的夹层阻尼圆锯片结构最优配置,使其在减振降噪的同时达到一定的刚度要求. 通过3种圆锯片模型的阻尼损耗因子对比,验证了优化后的圆锯片具有最佳的减振降噪效果.
关键词: 拓扑优化损耗因子灵敏度单元删除减振降噪圆锯片    
Abstract: In view of the topology optimization design method on vibration and noise reduction of damping material structure and based on evolutionary topology ESO (evolutionary structural optimization) algorithm, the optimal layout of damping material was sought. Elements deleting method and calculation method of modal loss factor sensitivity were obtained. Topological optimization process for the circular saw was built. Modal loss factor sensitivity was used as a standard to weigh the contribution of elements to modal loss factor. Ineffective damping elements were deleted by judging the effect on vibration and noise resistance. The optimal structure of laminated damping circular saw under the condition of stiffness was obtained, which reduced the vibration and noise and reached a certain stiffness requirement at the same time. By contrast the damping loss factor of three kinds of circular saws, the vibration and noise reduction effect of optimized circular saw structure is validated.
Key words: topology optimization    loss factor sensitivity    element deleting    vibration and noise reduction    circular saw
出版日期: 2013-02-28
基金资助:

河北省自然科学基金资助项目(E2011202114);天津市自然科学基金资助项目(11JCZDJC23100).

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王婷
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引用本文:

王婷, 姚涛, 段国林, 蔡瑾. 基于ESO的夹层阻尼圆锯片减振降噪拓扑优化设计[J]. 工程设计学报, 2013, 20(1): 27-30.

WANG Ting, YAO Tao, DUAN Guo-Lin, CAI Jin. Topological optimization design on vibration and noise reduction of laminated damping circular saw based on ESO. Chinese Journal of Engineering Design, 2013, 20(1): 27-30.

链接本文:

https://www.zjujournals.com/gcsjxb/CN/        https://www.zjujournals.com/gcsjxb/CN/Y2013/V20/I1/27

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