| 大尺寸矩形截面幂函数复合变幅杆的研究 |
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| 引用本文： | 高健,晨曦.大尺寸矩形截面幂函数复合变幅杆的研究[J].声学技术,2009,28(6):807-810. |
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| 作者姓名： | 高健 晨曦 |
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| 作者单位： | 陕西师范大学应用声学研究所,西安,710062 |
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| 摘 要： | 利用传输矩阵法,计算得到了幂函数复合变幅杆一维纵振动的频率方程,并在此基础上运用表观弹性法分析了大尺寸矩形截面幂函数复合变幅杆,得到了考虑横向耦合振动后的谐振频率方程,最后利用有限元软件ANSYS对三组变幅杆进行了模态分析。结果表明：变幅杆谐振频率的计算值与模拟值符合得很好,与一维理论相比,考虑横向耦合振动的二维理论具有更高的精确度。
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| 关 键 词： | 幂函数复合变幅杆 传输矩阵 谐振频率 耦合振动 有限元 |
| 收稿时间： | 2008/12/12 0:00:00 |
| 修稿时间： | 2009/2/12 0:00:00 |
Research on power function compound horn with large dimension rectangular section |
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| GAO Jian and CHEN Xi.Research on power function compound horn with large dimension rectangular section[J].Technical Acoustics,2009,28(6):807-810. |
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| Authors: | GAO Jian and CHEN Xi |
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| Affiliation: | (Institute of Applied Acoustics, shaanxi Normal University, Xi＇an 710062, China) |
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| Abstract: | Based on the transfer-matrix method, the frequency equation of power function compound horn is deduced. On this basis, the power function compound horn with a large dimension rectangular section is studied with the apparent elasticity method, and the resonance frequency function of coupled vibration is obtained. By finite element analysis software ANSYS, three sets of transformers are analyzed. Compared with one-dimensional theory, the results of two-dimensional theory are closer to finite element analysis solutions when the transverse coupled vibration is taken into account. |
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| Keywords: | power function compound horn transfer-matrix resonance frequency coupled vibration finite element |
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