1/2波长圆锥过渡复合超声变幅杆优化设计
2018-07-13
作者：许国峰，沈学会
单位：齐鲁工业大学
摘要：圆锥过渡阶梯型复合变幅杆可增大阶梯形变幅杆位移放大倍数，还可解决阶梯形变幅杆在直径突变处位置应力集中的缺点，加工方便，适用于多种工业应用场合。基于波动理论进行变幅杆设计，用ANSYS软件进行有限元分析及尺寸优化，得到复合变幅杆的最佳共振频率、节点位置和放大系数等性能参数，并用试验验证其振动情况。结果表明：设计的复合变幅杆参数与试验测试结果一致，实际加工的变幅杆振动性能良好。
关键词：有限元分析；变幅杆；模态分析；优化
中图分类号：TG663；TH612文献标志码：A
Optimal Design and Experiment of 1/2 Wave Length Cone
Transition Compound Ultrasonic Horn
Xu Guofeng，Shen Xuehui
Abstract:The cone transition stepped composite ultrasonic horn has the advantages of multiple large stepped ultrasonic horn displacement amplification，it can reduce the stress concentration of stepped ultrasonic horn caused by the change in diameter，and it is a simple processing technology，it is suitable for various industrial applications.Ultrasonic horn is designed based on wave theory，and using ANSYS software for finite element analysis and size optimization，the optimal resonance frequencies of horns，node position and magnifying coefficient are carried out，and the vibration condition is verified by experiments.The results show that the design parameters of the composite horn are consistent with the test results，and the vibration amplitude of the actual horn is good.
Keywords:finite element analysis；ultrasonic horn；modal analysis；optimization