摘要
为了设计小孔超声振动挤压加工用变幅杆,提出了一种复合型变幅杆的优化设计方法。采用多项式响应面法、克里金法和支持向量回归法构建了根据变幅杆的结构参数预测其性能参数的代理模型,评价了代理模型的精度。结合精度较高的代理模型,基于遗传算法对该复合型变幅杆进行了优化设计。经仿真实验验证了该优化方法的有效性。加工试验结果表明:所设计的变幅杆满足使用要求,加工效果理想。
In order to design a horn for small hole extrusion machining with ultrasonic vibration,an optimization method of composite horn was proposed.Three surrogate models,Polynomial Response Surface,Kriging and Support Vector Regression,were employed to predict the performance parameters of the horn according to its dimension parameters.The accuracy of the surrogate models were compared.Based on genetic algorithm and the model with the higher accuracy,the optimization of the composite horn was investigated.The simulation results confirm the validity of the optimization method.The experimental results show that the horn meets the requirements of use and the machining effect is ideal.
作者
赵仕杰
梁延德
王硕
张志强
ZHAO ShiJie;LIANG YanDe;WANG Shuo;ZHANG ZhiQiang(School of Mechanical Engineering,Dalian University of Technology,Dalian 116024,China)
出处
《机械强度》
CAS
CSCD
北大核心
2020年第5期1112-1118,共7页
Journal of Mechanical Strength
关键词
小孔超声振动挤压加工
超声变幅杆
代理模型
遗传算法
优化方法
Small hole extrusion machining with ultrasonic vibration
Ultrasonic horn
Surrogate model
Genetic algorithm
Optimization method
