| 超声变幅杆的模态分析 |
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| 引用本文： | 万德安,刘春节. 超声变幅杆的模态分析[J]. 机械与电子, 2004, 0(4): 10-12 |
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| 作者姓名： | 万德安 刘春节 |
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| 作者单位： | 同济大学,上海,200092 |
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| 摘 要： | 根据变截面杆纵向振动的波动方程,推导了悬链形超声变幅杆的频率方程,应用有限元法对变幅杆进行了模态分析,得到了共振频率、横向振动频率、位移节点和放大系数等重要参数。与理论计算值的比较表明,有限元法获得了很高的精度。
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| 关 键 词： | 超声变幅杆 有限元法 模态分析 |
| 文章编号： | 1001-2257(2004)04-0010-02 |
| 修稿时间： | 2003-12-31 |
Modal Analysis of Ultrasonic Amplitude Amplifier Pole |
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| WAN Dean,LIU Chunjie. Modal Analysis of Ultrasonic Amplitude Amplifier Pole[J]. Machinery & Electronics, 2004, 0(4): 10-12 |
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| Authors: | WAN Dean LIU Chunjie |
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| Abstract: | Basing on the longitudinal wave equation of a pole with varying sections,the frequency equation of a catenary pole is presented.Normal modes of the pole are analyzed utilizing finite element method.Some important characteristic parameters such as resonance frequency both transversely and longitudinally,vibration node and magnifying factor are obtained.The comparison with the results in theory shows the modal analysis has obtained accurate results. |
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| Keywords: | ultrasonic amplitude amplifier pole finite element method modal analysis |
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