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| 弯管元件机械阻抗研究 | |
| 引用本文： | 吴文伟,孙玉东,沈荣瀛.弯管元件机械阻抗研究[J].噪声与振动控制,2006,26(6):22-26. |
| 作者姓名： | 吴文伟 孙玉东 沈荣瀛 |
| 作者单位： | 1. 上海交通大学,振动、冲击、噪声国家重点实验室,上海,200030;中国船舶科学研究中心,江苏无锡,214082 2. 中国船舶科学研究中心,江苏无锡,214082 3. 上海交通大学,振动、冲击、噪声国家重点实验室,上海,200030 |
| 摘 要： | 管路元件阻抗是管路系统振动和声学特性的表征，在管路系统减振降噪设计和计算中具有重要的用途。文章从弯管的振动方程出发，推导了弯管的阻抗计算表达式，并通过给定尺寸的弯管元件阻抗数值计算，分析了弯管相对于直管的机械阻抗差异以及参数变化对机械阻抗的影响。 |
| 关 键 词： | 振动与波 弯管 噪声 机械阻抗 |
| 文章编号： | 1006-1355(2006)06-0022-05 |
| 收稿时间： | 2005-12-22 |
| 修稿时间： | 2005年12月22 |
A Study of Mechanical Impedance of Piping Elbow |
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| WU Wen-wei,SUN Yu-dong,SHEN Rong-ying.A Study of Mechanical Impedance of Piping Elbow[J].Noise and Vibration Control,2006,26(6):22-26. | |
| Authors: | WU Wen-wei SUN Yu-dong SHEN Rong-ying |
| Affiliation: | 1. State Key Laboratory of Vibration, Shock and Noise, Shanghai Jiao Tong University, Shanghai 200030, China; 2,China Ship Scientific Research Center, Jiangsu Wuxi 214082, China |
| Abstract: | Piping elbow can be inserted in piping system to change the course of pipe. And its mechanical impedance, which characterizes the dynamic property of elbow elements, always plays an important role in silent piping design and vibration and noise analysis of piping system. Based on the motion equations of the elbow element, the mechanical input impedance and transfer impedance expressions are deduced in detail and presented in this paper. Through practical examples, the effects of structural parameters of the elbow element on the mechanical impedance are investigated in this paper. |
| Keywords: | vibration and wave piping - system noise mechanical - impedance |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |