| 邱卫明， 郑兵， 祝书伟， 黄小青， 蔡炳清， 李朝国， 李小芬.绷缝机橡胶垫隔振性能优化设计[J].轻工机械,2019,37(6):88-92 |
| 绷缝机橡胶垫隔振性能优化设计 |
| Optimization Design of Vibration Isolation Performance of Rubber Pad for Stretch Sewing Machine |
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| DOI：10.3969/j.issn.1005 2895.2019.06.017 |
| 中文关键词: 绷缝机 橡胶垫 正交试验法 多体动力学模型 有限元模型 |
| 英文关键词:stretch sewing machine rubber bearing orthogonal experiment method multi body dynamics model FEM（Finite Element Model） |
| 基金项目:教育部人文社科基金资助项目（14YJC630206）；台州市科技计划（1801gy23）。 |
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| 中文摘要: |
| 针对绷缝机高速运转时各运动组件产生较大的惯性力和惯性力矩，对机架及其他相关部件产生激励，带来强烈的振动以及噪声，而严重影响机器工作精度的问题，课题组对绷缝机橡胶垫隔振性能进行了优化设计。通过振动理论分析绷缝机橡胶垫对整机振动的影响，建立绷缝机橡胶垫刚度计算有限元模型，评估现有橡胶垫刚度。在此基础上，建立了绷缝机整机多体动力学模型，计算针板处振动位移并与实测结果对比，验证模型的可靠性。基于此模型选取橡胶垫的刚度作为试验因素，利用正交试验法完成橡胶垫刚度优化方案设计，通过仿真计算优化方案针板处振动位移峰值降低了11.7%，表明橡胶垫刚度优化对绷缝机振动性能改善具有一定作用。该方案不用对机器内部结构做任何改变，可实施性强，可作为整机振动性能改善辅助方案。 |
| 英文摘要: |
| Aiming at the problem of vibration noise caused by inertia force and inertia moment during the vibration process of sewing machine, the vibration isolation performance of rubber pad for stretching sewing machine was optimized. The effect of rubber pad on the vibration of sewing machine was analyzed by vibration theory, the finite element model for calculating the stiffness of rubber pad was established, and the stiffness of existing rubber pad was evaluated. On this basis, the multi body dynamic model of the whole machine was established, and the vibration displacement of the needle plate was calculated and compared with the measured results to verify the reliability of the model. Selection model based on the stiffness of the rubber mat as test factors, using the orthogonal experiment method to complete the rubber pad stiffness optimization design.Through the simulation optimization needle plate vibration displacement value was reduced by 11.7%, shows that the rubber pad stiffness optimization can improve the machine vibration performance .The scheme does not need to make any change to the internal structure for the machine. It has strong practicability and can be used as an auxiliary scheme to improve the vibration performance of the whole machine. |
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