| 柯祥林， 郑 吉， 祝书伟， 位延辉， 何明金.基于OptiStruct的塑料手轮模态分析与结构再设计[J].轻工机械,2018,36(1):95-98 |
| 基于OptiStruct的塑料手轮模态分析与结构再设计 |
| Modal Analysis and Structure Design of Plastic Hand Wheel Based on OptiStruct Solve |
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| DOI：10.3969/j.issn.1005 2895.2018.01.021 |
| 中文关键词: 缝纫机手轮 有限元分析 模态分析 拓扑优化 降噪 SolidWorks软件 |
| 英文关键词:sewing machine hand wheel FEA（Finite Element Analysis） modal analysis topology optimization noise reduction SolidWorks |
| 基金项目:TS941.56；TP274 |
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| 摘要点击次数: 1231 |
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| 中文摘要: |
| 针对某缝纫机存在塑料手轮噪声普遍高于铝质手轮的问题，课题组通过对塑料手轮进行有限元建模与模态分析，求解塑料手轮结构的各阶固有频率及与其对应的模态振型，分析其结构动态响应特性；利用OptiStruct求解器，基于提升固有频率的拓扑优化法，对该塑料手轮进行结构优化，结合手轮的实际工况与相关风扇叶片设计理论，实现对该塑料手轮的结构再设计；对改进后手轮进行相关噪声测试，噪声数值明显降低。研究表明模态分析与结构拓扑优化可以有效改善塑料手轮的结构动态响应特性，降低其工作噪声。 |
| 英文摘要: |
| This paper analyzed and studied the problem that the noise of the plastic hand wheel is generally higher than aluminum hand wheel in the application of one kind sewing machine in plastic hand wheel. Through the finite element modeling and modal analysis of the plastic hand wheel, the natural frequencies and its corresponding modal shapes of the plastic hand wheel structure were analyzed, then the dynamic response characteristics of the structure were analyzed. Using the OptiStruct solver, the structure of the plastic hand wheel was optimized with the topology optimization method based on the increase of natural frequencies, and the redesign of plastic wheel structure was completed by combining the actual working conditions of the hand wheel and the related fan blade design theory. The relevant noise tests of the new designed hand wheel were carried out and the noise was significantly reduced, which showed the modal analysis and structural topology optimization could effectively improve the dynamic response characteristics of the plastic hand wheel and reduce the working noise. |
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