| 铝合金超声铸造中换能系统的有限元仿真分析 |
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| 引用本文： | 李晓谦,黄运明.铝合金超声铸造中换能系统的有限元仿真分析[J].机械设计与制造,2007,27(8):156-158. |
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| 作者姓名： | 李晓谦 黄运明 |
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| 作者单位： | 中南大学,机电工程学院,长沙,410083 |
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| 基金项目： | 国家重点基础研究发展计划(973计划) |
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| 摘 要： | 根据任意变截面杆纵向振动的波动方程,推导了用于超声波铸造的换能系统各部分的频率方程,并应用有限元分析软件ANSYS对结构进行了模态分析和谐响应分析,得到了系统的共振频率、位移节点、振速分布和输出振幅等重要参数,并应用多普勒测速仪进行了实验验证.与理论计算结果和试验测试结果比较,有限元仿真分析法获得了较高的精度.
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| 关 键 词： | 超声铸造 超声换能器 变幅杆 ANSYS有限元 模态分析 谐响应分析 铝合金 超声铸造 系统 有限元仿真分析法 ultrasonic casting aluminum alloy used system transducer 精度 结果比较 试验测试 理论计算 实验验证 多普勒测速仪 参数 振幅 输出 分布 |
| 文章编号： | 1001-3997（2007）08-0156-03 |
| 修稿时间： | 2006-11-14 |
The FEM simulation analysis of the transducer system used in aluminum alloy casting treated by ultrasonic |
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| LI Xiao-qian,HUANG Yun-ming.The FEM simulation analysis of the transducer system used in aluminum alloy casting treated by ultrasonic[J].Machinery Design & Manufacture,2007,27(8):156-158. |
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| Authors: | LI Xiao-qian HUANG Yun-ming |
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| Affiliation: | College of Mechanical and Electrical Engineering, Central South University, Changsha 410083, China |
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| Abstract: | Based on the longitudinal oscillation equation of a ultrasonic horn with random variable cross-section,the frequency equation of the ultrasonic transducer system which is used for ultrasonic founding is presented Using the FEM analysis software ANSYS,the normal modes and harmonic response of the structure are analyzed,and some important characteristic parameters such as resonance frequency,vibration node,the distribution of vibration speed and the amplitude output are obtained.,then we verify these results through Doppler Velometer.Comparing with the results in theory and experiment,the FEM Simulation Analysis has obtained accurate results. |
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| Keywords: | Casting treated by ultrasonic Ultrasonic transducer Ultrasonic horn ANSYS finite element method Normal modes analysis Harmonic response analysis |
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