折页机砍刀臂结构有限元分析及拓扑优化  

Finite Element Analysis and Topology Optimization of the Cutting Arm Structure of a Folding Machine

作　　者：李佳童 杜智杰 孟璐瑶 李宏峰 杜艳平 高振清 LI Jia-tong;DU Zhi-jie;MENG Lu-yao;LI Hong-feng;DU Yan-ping;GAO Zhen-qing(School of Mechanical and Electrical Engineering,Beijing Institute of Graphic Communication,Beijing 102600,China;Beiren Intelligent Equipment Technology CO.,LTD.,Beijing 102628,China)

机构地区：[1]北京印刷学院机电工程学院,北京102600 [2]北人智能装备科技有限公司,北京102628

出　　处：《印刷与数字媒体技术研究》2025年第2期135-142,共8页Printing and Digital Media Technology Study

基　　金：北京市属高等学校高水平科研创新团队建设支持计划项目(No.BPHR20220107)。

摘　　要：折页机砍刀臂在工作过程中易发生轻微形变导致折页精度下降,为提升其结构稳定性和可靠性,本研究对折页机砍刀臂结构进行有限元分析,结合静态力学和模态分析,得到最大应力与最大形变,以及前六阶的固有频率,评价砍刀臂结构设计的合理性和性能。基于拓扑优化技术,以质量和等效应力最小为目标函数,对砍刀臂梁部位进行优化。优化结果显示,静态力学性能显著改善,形变量减少13.2%;动态分析中,六阶固有频率降幅高达56.7%,减少工作过程中潜在变形。结果表明,拓扑优化有效提升了砍刀臂结构的稳定性和可靠性。During the working process,the cutting arm of the folding machine is prone to slight deformation,which leads to a decrease in folding accuracy.To improve its structural stability and reliability,the finite element analysis of the cutting arm structure of the folding machine was carried out in this study.Combining static mechanics and modal analysis,the maximum stress and maximum deformation,as well as the natural frequencies of the first six orders,were obtained to evaluate the rationality and performance of the cutting arm structural design.Based on the topology optimization technology,with the minimum mass and equivalent stress as the objective functions,the beam part of the cutting arm was optimized.The optimization results showed that the static mechanical performance is significantly improved,and the deformation is reduced by 13.2%.In the dynamic analysis,the natural frequency of the six-order decreases by up to 56.7%,which reduces the potential deformation during the working process.The results indicated that the topology optimization effectively improves the stability and reliability of the cutting arm structure.

关 键 词：有限元分析 静动态特性 拓扑优化 模态分析 

分 类 号：TS803[轻工技术与工程] TH122[机械工程—机械设计及理论]