基于动态特性回转复合压曲机模盒组件优化设计
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(1. 四川轻化工大学机械工程学院,四川 宜宾 644000;2. 四川宜宾岷江机械制造有限责任公司,四川 宜宾 644000)

作者简介:

孟遥志,男,四川轻化工大学在读硕士研究生。

通讯作者:

石艳(1971—),女,四川轻化工大学教授,博士。E-mail:sy71Email@163.com

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基金项目:

四川省科技厅重点研究项目(编号:2021YFG0056);宜宾职业技术学院校级科研项目(编号:ybzysc20-30);研究生创新基金项目(编号:y2021031)


Optimization design of die box component of rotary compound starter press machine based on dynamic characteristics
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(1. School of Mechanical Engineering, Sichuan University of Science & Engineering, Yibin, Sichuan 644000, China; 2. Sichuan Yibin Minjiang Machinery Manufacturing Co., Ltd., Yibin, Sichuan 644000, China)

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    摘要:

    目的:提高回转复合压曲机的综合性能。方法:基于有限元分析方法对模盒组件有限元模型进行模态与谐响应分析,运用变密度法对模盒组件进行拓扑优化,并对拓扑结构进行改进,将改进后的模盒组件的质量和1阶固有频率作为优化目标,基于非支配排序遗传算法对其进行多目标优化设计。结果:在第4阶振型中模盒组件整体边缘出现较大的扭振变形,不满足刚度性能要求;伺服电机最高转速与1阶临界转速比较接近,发生低频耦合共振的几率很大;同时响应峰值出现的区域与模态分析中出现变形的区域基本一致,验证了动态特性结果的准确性,经优化后模盒组件的质量减小了15.13%,前4阶固有频率分别增加了14.09%,14.14%,3.54%和10.37%。结论:压曲机的动态特性主要影响其生产效率与制曲质量,在优化后的模盒组件下,该压曲设备具有良好的动态性能并实现了轻量化设计的目标。

    Abstract:

    Objective: To improve the comprehensive performance of starter press machine. Methods: Based on the finite element analysis method for die box component modal and harmonic response analysis, and based on the finite element model by using variable density method was carried out on the die box component topology optimization, and the topology structure was also improved, which will improved the quality of the die box components and 1 order natural frequency as the optimization goal. The multi-objective optimization design was carried out based on non-dominated sorting genetic algorithm. Results: In the fourth mode, large torsional deformation appeared on the overall edge of the die box components, which did not meet the requirements of stiffness performance. The highest speed of the servo motor was close to the first-order critical speed, and the probability of low-frequency coupling resonance was very large. At the same time, the region where the response peak occurs was basically the same as the region where the deformation occurs in the modal analysis, which verified the accuracy of the dynamic characteristic results. After optimization, the mass of the die box component decreased by 15.13%, and the first four natural frequencies increasd by 14.09%, 14.14%, 3.54% and 10.37%, respectively. Conclusion: The dynamic characteristics of the starter press machine mainly affect its production efficiency and starter press quality. Under the optimized die box component, the starter press machine has good dynamic performance and achieves the goal of lightweight design.

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引用本文

孟遥志,石 艳,廖映华,等.基于动态特性回转复合压曲机模盒组件优化设计[J].食品与机械,2023,39(2):87-93,163.
MENG Yao-zhi, SHI Yan, LIAO Ying-hua, et al. Optimization design of die box component of rotary compound starter press machine based on dynamic characteristics[J]. Food & Machinery,2023,39(2):87-93,163.

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  • 收稿日期:2022-06-22
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  • 在线发布日期: 2023-04-25
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