基于ANSYS Workbench的超声振动系统设计与优化

发布时间：2018-03-17 03:23

本文选题：ANSYS　切入点：Workbench　出处：《锻压技术》2015年11期 　论文类型：期刊论文

【摘要】：超声振动系统传统的设计方法普遍存在计算量大且精度不高的缺陷。在设计过程中引用有限元分析软件ANSYS Workbench对换能器、变幅杆和工具头等进行静力、模态、谐响应的模拟分析,得出了各部分最大、最小的位移和应力值出现的部位以及谐振频率的大小,对不合理的设计尺寸进行优化和修正。最终确定了换能器的尺寸和预紧力大小,变幅杆放大系数为2.36,阻抗为8Ω;工具头放大系数为1.27,端面最大振幅为5.5μm。将设计的超声振动系统应用到超声辅助振动拉伸、压缩试验中,当载荷为10 k N时,振幅为5.4μm,仅衰减1.8%。
[Abstract]:The traditional design methods of ultrasonic vibration system generally have the defects of large calculation and low precision. In the design process, the finite element analysis software ANSYS Workbench is used to simulate the static, modal and harmonic response of transducer, amplitude lever and tool head. The maximum and minimum displacement and stress values of each part and the magnitude of resonance frequency are obtained, and the unreasonable design dimensions are optimized and corrected. Finally, the size and pretightening force of the transducer are determined. The magnification factor of the horn is 2.36, the impedance is 8 惟, the magnification factor of the tool head is 1.27, and the maximum amplitude of the end face is 5.5 渭 m. The designed ultrasonic vibration system is applied to the ultrasonic assisted vibration tension. When the load is 10 KN, the amplitude is 5.4 渭 m and the attenuation is only 1.8 渭 m.
【作者单位】：山东大学材料科学与工程学院;
【基金】：国家自然科学基金资助项目(51375269)
【分类号】：TH87;TB559

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