超声变幅杆自动优化设计方法及系统  

Automatic optimization design method and system for ultrasonic horn

作　　者：程峰 刘爽 侯峰[1] CHENG Feng;LIU Shuang;HOU Feng(School of Mechanical and Power Engineering,East China University of Science and Technology,Shanghai 200237,China)

机构地区：[1]华东理工大学机械与动力工程学院,上海200237

出　　处：《现代制造工程》2022年第3期127-132,121,共7页Modern Manufacturing Engineering

基　　金：国家自然科学基金项目(51975214)。

摘　　要：超声变幅杆是超声加工装备中的重要部件,现有的优化设计方法经验依赖性强、计算量大,共振频率会因节点法兰等产生偏移。提出了一次成型的参数化自动建模方法、自适应网格划分方法、超声性能分析判别算法及以差分进化算法为核心的优化设计方法。提出了基于Python语言和APDL语言的自动化设计系统。并以细长型带节点法兰贝塞尔曲线形变幅杆为例,进行了自动设计。设计结果及试验表明,共振频率偏移的消除率达98.7%,放大系数符合设计目标。在保证了超声性能的前提下,大幅节约了人力成本,缩短了超声加工设备的设计周期。Ultrasonic horn is an important part of ultrasonic machining equipment.The existing optimization design method has strong experience dependence and large calculation amount.The resonance frequency is shifted due to node flanges.An optimization design method with one-step parametric automatic modeling method,adaptive meshing method,ultrasonic performance analysis algorithm and differential evolution algorithm as the core was proposed.An automated design system based on Python language and APDL language was built.Taking the slender horn with flanged and Bezier curve as an example,the automatic design was carried out.The results show that the elimination rate of resonance frequency offset is 98.7%,and the amplification factor meets the design target.On the premise of ensuring the ultrasonic performance,the labor cost is greatly saved and the design cycle of the ultrasonic processing equipment is shortened.

关 键 词：超声变幅杆 节点法兰 差分进化算法 系统 贝塞尔曲线 

分 类 号：TH113.1[机械工程—机械设计及理论]