基于Matlab的电磁振动系统建模与仿真分析  

Modeling and simulation analysis of electromagnetic vibration system based on Matlab

作　　者：余家敏 吴建民[1] 严昊 陈宇宁 YU Jia-min;WU Jian-min;YAN Hao;CHEN Yu-ning(School of Mechanical and Automotive Engineering, Shanghai University of Engineering Science, Shanghai 201620,China)

机构地区：[1]上海工程技术大学机械与汽车工程学院

出　　处：《机电工程》2019年第10期1055-1059,1064,共6页Journal of Mechanical & Electrical Engineering

基　　金：国家自然科学基金青年科学基金资助项目(61703268)

摘　　要：针对振动摩擦焊接机在焊接过程中频率范围设定较困难的问题,对振动摩擦焊接机中电磁振动系统进行了研究,对有阻尼受迫振动系统的外激振力频率和固有频率之间的关系进行了归纳,提出了一种基于Matlab的电磁振动系统建模与仿真分析方法。建立了电磁振动系统的简化模型,基于Matlab分析了电磁振动系统的模型,利用振动摩擦焊接试验台,对所建立的电磁振动系统的振动频率、振幅以及电压之间关系进行了试验。研究结果表明:该电磁振动系统在共振点附近的振动能量最大,振幅最大约0.3 mm,对应的频率约227 Hz,为振动摩擦焊接机的频率设定提供了依据。Aiming at the problem of setting the frequency range of vibration friction welding machine in the welding process, the electromagnetic vibration system in vibration friction welding machine were studied. The relationship between the frequency of external excitation force and the natural frequency of damped forced vibration system was summarized, electromagnetic vibration system based on Matlab in modeling and simulation was proposed. The simplified model of electromagnetic vibration system was established, and the model of electromagnetic vibration system was analyzed by Matlab. The relationship between vibration frequency, amplitude and voltage of the electromagnetic vibration system was tested by using the vibration friction welding test bench. The results indicate that the vibration energy of the electromagnetic vibration system is the largest near the resonance point, the amplitude is about 0.3 mm, and the corresponding frequency is about 227 Hz, which provides a basis for the frequency setting of the vibration friction welding machine.

关 键 词：电磁振动系统 模型 频率 仿真 

分 类 号：TH113.1[机械工程—机械设计及理论] TG456[金属学及工艺—焊接]