旋轮几何参数对变幅器模态的影响研究  

Analysis of the effect of roller size structure to tramsformer resonance

作　　者：李新和[1] 杨飞[1] 何霞辉[1] 

机构地区：[1]中南大学机械工程学院,湖南长沙410083

出　　处：《制造技术与机床》2012年第12期139-142,共4页Manufacturing Technology & Machine Tool

摘　　要：运用大型有限元软件MSC.Marc对超声旋压变幅器进行仿真分析,研究了旋轮厚度、旋轮外径、旋轮小径对纵弯变幅器模态影响。研究表明,超声旋压变幅器的纵弯固有频率随着旋轮外径与小径的增大而降低,随着旋轮的厚度的增大而提高。运用阻抗分析仪纵弯谐振系统进行检测,结果与仿真分析一致,并分析了仿真计算与实验结果的误差,对超声旋压变幅器的设计具有指导意义。The finite element analysis software MSC.Marc is used to simulate and analyze ultrasonic spinning transformer.The effect of roller thickness,roller external diameter and small diameter to the longitudinal-bending transformer resonance is studied.The research shows that,the transformer resonance frequency will decrease with roller diameter and diameter increase when other conditions remain unchanged,but increase along with the rotary wheel thickness increase.Apply the impedance analyzer to measure the frequency of the system,the result is agreed with the simulation.The simulation and experiment error is also analyzed.Guide is provided for the design of ultrasonic spinning transformer.

关 键 词：旋轮 变幅器 谐振频率 模态分析 

分 类 号：TH16[机械工程—机械制造及自动化]