| 不同直径金属杆中纵向振动声速研究 |
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| 引用本文： | 王秋萍,任金莲,牛勇,张明铎. 不同直径金属杆中纵向振动声速研究[J]. 陕西师范大学学报(自然科学版), 2005, 33(2): 49-51 |
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| 作者姓名： | 王秋萍 任金莲 牛勇 张明铎 |
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| 作者单位： | 陕西师范大学应用声学研究所,陕西西安710062 |
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| 基金项目： | 国家自然科学基金资助项目(19974022) |
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| 摘 要： | 通过理论分析和实验测量，研究了横向振动对两端自由的金属杆中纵波传播速度的影响，重点研究了直径对声速的影响．结果表明，横向振动使得振动系统中纵向振动的传播速度减小；同样长度的杆，截面增大时声速减小．这为变幅杆的设计提供了一定依据．
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| 关 键 词： | 声速 纵向振动 泊松效应 |
| 文章编号： | 1672-4291(2005)02-0049-03 |
| 修稿时间： | 2004-12-15 |
Longitudinal vibration velocity with different diameter metallic rod |
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| WANG Qiu-ping,REN Jin-lian,NIU Yong,ZHANG Ming-duo. Longitudinal vibration velocity with different diameter metallic rod[J]. Journal of Shaanxi Normal University: Nat Sci Ed, 2005, 33(2): 49-51 |
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| Authors: | WANG Qiu-ping REN Jin-lian NIU Yong ZHANG Ming-duo |
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| Abstract: | The effect of transverse vibration on longitudinal velocity of metallic rods in a state of freedom is analyzed theoretically and experimentally, especially the effect of diameter on longitudinal velocity is studied.The results show that the longitudinal velocity reduces with transverse vibration and also reduces with the dimension of the section increasing, while the length of the rod is the same. The results may be useful to the transformer design. |
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