基于多体动力学的飞剪高速振动优化  

High-Speed Vibration Optimization of Flying Shear Based on Multi-body Dynamics

作　　者：夏志昊 龚俊杰[1] 韦源源[1] 郝文峰 陈扬东 王金荣[2] XIA Zhihao;GONG Junjie;WEI Yuanyuan;HAO Wenfeng;CHEN Yangdong;WANG Jinrong(School of Mechanical Engineering,Yangzhou University,Yangzhou Jiangsu 225127,China;Jiangsu Yawei Machine-Tool Co.,Ltd.,Yangzhou Jiangsu 225200,China)

机构地区：[1]扬州大学机械工程学院,江苏扬州225127 [2]江苏亚威机床股份有限公司,江苏扬州225200

出　　处：《机床与液压》2024年第18期171-176,共6页Machine Tool & Hydraulics

基　　金：江苏省科学技术厅(BE2022137)。

摘　　要：针对回转式飞剪机的工作特性,提出采用多体动力学仿真和试验方法以提高飞剪机的剪切速率。建立基于多体动力学和瞬态动力学的飞剪仿真模型;通过仿真计算得到飞剪机运行过程中的运动轨迹,并分析不同转速下整机的动态响应;利用电测方法对飞剪机进行振动试验,验证仿真模型的可靠性;最后,引入S形加减速曲线理论对工作曲线进行优化。结果表明:优化后的工作曲线使得飞剪机的振幅减小40%,减少了冲击;同时,还使得剪切周期缩短,有效提高了剪切速率,并保证了剪切精度。In view of the working characteristics of the rotary flying shear machine,multi-body dynamic simulations and experiments were applied to improve the shear rate of flying shear machine.The simulation model of the flying shear was established based on multi-body dynamics and transient dynamics.The motion trajectory of the flying shear machine in the process of operation was obtained by simulation calculations,and the dynamic response of the whole machine at different speeds was analyzed.Then,vibration tests of the flying shear machine were carried out by using the electrical measurement method to verify the reliability of the simulation model.Finally,the S-shaped acceleration and deceleration curve theory was introduced to optimize the working curve.The results show that the amplitude of the flying shear machine is reduced by 40%by using the optimized working curve,greatly reducing impact;at the same time,the shearing cycle is shortened and the shearing rate is effectively improved,the shearing accuracy is ensured.

关 键 词：飞剪机 多体动力学 动态分析 振动优化 

分 类 号：F407.4[经济管理—产业经济]