摘要
针对振动摩擦焊接机在焊接过程中的外激振力幅值确定较为困难的问题,对振动摩擦焊接机中的电磁振动原理、电磁力计算、电磁力仿真分析等方面进行研究,对静态进程模式下正余弦信号与电磁力之间关系进行归纳,提出一种基于MATLAB的电磁振动仿真分析方法。结合电磁振动学和牛顿运动学方法综合建立简化的电磁力理论推导,借用MATLAB分析正弦和余弦对电磁力的影响规律,利用振动摩擦焊接试验台对所建立的电磁力理论推导方法进行实验验证。研究结果表明,当输入正弦信号,时间为0.0025s时,电磁力最大值为400N;当输入余弦信号,时间为0.0026s时,电磁力最大值为556.0800N,从而为振动摩擦焊接机的外激振力及其频率确定提供了依据。
Aiming at the problem of setting the external exciting force range of vibration friction welding machine in the welding process,we conduct research on the basic principle,the electromagnetic force calculation and the electromagnetic force simulation analysis in vibration friction welding machine.The relationship between the sine and cosine signal and the electromagnetic force is summarized in static process mode,and a simulation analysis of electromagnetic vibration based on MATLAB is proposed.Combined with the method of electromagnetic vibration and Newton kinematics,the simplified theoretical derivation of electromagnetic force is established,and the influence of sine and cosine on electromagnetic force is analyzed by MATLAB.The theoretical derivation of electromagnetic force is tested by using the vibration friction welding test bench.The results indicate that when sinusoidal signal is input and the time is 0.0025s,the maximum value of electromagnetic force is 400N;when cosine signal is input and the time is 0.0026s,the maximum value of electromagnetic force is 556.0800N,which provides a basis for the external exciting force and frequency of the vibration friction welding machine.
作者
余家敏
吴建民
YU Jia-min;WU Jian-min(School of Mechanical and Automotive Engineering,Shanghai University of Engineering Science,Shanghai 201620,China)
出处
《软件导刊》
2020年第10期116-120,共5页
Software Guide
基金
国家自然科学基金青年科学基金项目(61703268)。
关键词
电磁振动
摩擦焊接
电磁力
MATLAB
electromagnetic vibration
friction welding
electromagnetic force
MATLAB
