摘要
以松耦合变压器构成的非接触电能传输系统与超声波换能器负载共同组成超声加工系统,构建了旋转超声加工的频率与阻抗数值模型,并通过Matlab Simulink平台建立了阻抗模型的仿真计算。结果表明:旋转超声加工的工作频率存在分叉现象,导致超声加工系统可能工作在不同频率点。从实验角度对不同频率点的振动情况进行监测,发现不同频率点的超声能量输出是存在差异的。
The ultrasonic machining system is made up of the contactless power transfer system, which is composed of loosely coupled transformer and ultrasonic transducer load. The numerical model of frequency and impedance for rotary ultrasonic machining is built. The impedance model is simulated by Matlab Simulink platform. The results show that there is a bifurcation phenomenon near resonance frequency of the rotary ultrasonic machining, which may lead to ultrasonic machining system work at different resonance frequency. The vibration of different frequency is monitored in the experiment. It is found that the output vibration amplitude of ultrasonic energy at different resonance frequency is different.
出处
《电加工与模具》
2018年第1期51-54,共4页
Electromachining & Mould
基金
深圳基础研究项目(JCYJ20150403161923526
JCYJ20170413112645981)
深圳市创新基金项目(JCYJ20150625142543473
JSGG20150330103937411)
关键词
松耦合变压器
频率分叉
阻抗模型
超声加工
loose coupling transformer
frequency bifurcation
impedance model
ultrasonic machining
