基于滑块轻量化设计的减振研究  

Vibration reduction research based on lightweight design of slider

作　　者：韩经伟 丁武学[1] 孙宇[1] 王敏 刘永昕 Han Jingwei;Ding Wuxue;Sun Yu;Wang Min;Liu Yongxin(School of Mechanical Engineering,Nanjing University of Science and Technology,Nanjing 210094,China)

机构地区：[1]南京理工大学机械工程学院,江苏南京210094

出　　处：《锻压技术》2023年第3期175-179,共5页Forging & Stamping Technology

基　　金：江苏省重大科技成果转化项目(BA2021067)。

摘　　要：为了降低机械压力机的振动、提高工件质量,对压力机的曲柄滑块机构产生的惯性力特点进行分析,得出滑块质量是影响惯性力的主要因素之一。以减轻滑块质量、降低等效惯性力为目标,在不影响滑块强度和刚度的情况下,利用ANSYS Workbench的拓扑优化板块对滑块进行拓扑优化分析,通过仿真分析得出优化前后滑块的质量降低了16%,验证了该方法的可行性。同时,建立了压力机单自由度系统振动模型,以机身振动响应为目标,分析比较滑块拓扑优化前后的振动响应曲线。结果表明:滑块拓扑优化前后最大振动幅值降低了14.3%,验证了该方法的可靠性,能够为机械压力机的减振提供一定的参考。In order to reduce the vibration of mechanical press and improve the quality of workpiece,the characteristics of inertia force produced by slider crank mechanism of press were analyzed.And the result shows that the mass of slider is one of the main factors affecting the magnitude of inertia force.Then,with the goal of reducing the mass of slider and the equivalent inertia force,without affecting the strength and stiffness of slider,the topology optimization analysis of the slider was carried out by using the topology optimization module of ANSYS Workbench.And through simulation analysis,it is found that the mass of slider before and after optimization is reduced by 16%,which verifies the feasibility of this method.At the same time,the vibration model of single-degree-of-freedom system for press was established,and taking the vibration response of fuselage as the objective,the vibration response curves of slider before and after the slider topology optimization were analyzed and compared.The results show that the maximum vibration amplitude is reduced by 14.3%before and after the slider topology optimization,which verifies the reliability of the method and provides a certain reference for the vibration reduction of mechanical press.

关 键 词：曲柄滑块机构 惯性力 拓扑优化 振动响应 减振 

分 类 号：TG315.5+1[金属学及工艺—金属压力加工]