文献类型：期刊文献

中文题名：纵-扭同频复合超声振动变幅杆设计

英文题名：Design of the longitudinal-torsional composite mode ultrasonic vibration horn

作者：唐军[1,2];赵波[1];陈曦[1]

第一作者：唐军

机构：[1]河南理工大学机械与动力工程学院;[2]新乡学院机电工程学院

第一机构：河南理工大学机械与动力工程学院,河南焦作454000

年份：2013

期号：6

起止页码：33-37

中文期刊名：陕西师范大学学报：自然科学版

收录：CSTPCD;;北大核心:【北大核心2011】；CSCD:【CSCD2013_2014】；

基金：国家自然科学基金资助项目(51175153;E050903)

语种：中文

中文关键词：纵-扭复合振动;同频共振;复合变幅杆;有限元分析

外文关键词：longitudinal-torsional compound vibration; co-frequency resonance; composite horn;finite element analysis （FEM）

摘要：为了在切削与焊接加工过程中获得超声变幅杆的纵-扭复合振动,本文通过对纵-扭转振动模式下的圆锥过渡阶梯形复合变幅杆进行理论分析,得出其纵-扭振动的共振频率方程以及振速放大倍数,并对复合变幅杆的三段长度进行控制,实现了纵-扭复合同频共振.利用有限元软件ANSYS对理论设计的复合变幅杆进行结构动力学仿真分析,结果表明有限元分析与理论计算结果吻合较好.
In order to realize the longitudinal-torsional vibration of the ultrasonic horn in cutting and welding process,the dual incentive longitudinal-torsional compound vibration characters of the composite stepped ultrasonic horn with a circular cone was analyzed,and the resonance frequency equations and the vibration velocity amplification coefficient for the design of longitudinal-torsional composite vibration the horn were derived.At the same time,the simultaneous resonance of the longitudinal and torsional vibrations in the horn was realized by reasonable choosing three section length of composite horn.The structural dynamic characteristics of composite horns were analyzed by the finite element software ANSYS.It is shown that the calculated resonance frequencies of the horns are in good agreement with the simulation results,and the longitudinal vibration and torsional vibration resonance frequency in the horn is almost equal to each other.