| 罗茨鼓风机壳体振动模态分析 |
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| 引用本文： | 王孚懋,何敬玉,赵丽芳,李志敏,丁鸿昌. 罗茨鼓风机壳体振动模态分析[J]. 噪声与振动控制, 2010, 30(1): 15-17. DOI: 10.3969/j.issn.1006-1355.2010.01.015 |
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| 作者姓名： | 王孚懋 何敬玉 赵丽芳 李志敏 丁鸿昌 |
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| 作者单位： | （1．山东科技大学机械电子工程学院，山东青岛266510；2．济南第二机床集团有限公司，济南250000） |
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| 基金项目： | 山东省自然科学基金项目资助 |
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| 摘 要： | 应用有限元ANSYS软件对罗茨鼓风机壳体进行动态特性分析,计算风机壳体振动的固有频率与振型,给出振型图。分析结果表明,风机壳体的固有频率高于转子系统的旋转基频,结构振动主要表现为弯曲、扭转和弯扭组合形态。通过风机壳体动态特性分析,能够预知结构设计的薄弱环节,为减振降噪与结构改型提供参考。
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| 关 键 词： | 振动与波 风机 壳体 模态分析 有限元 ANSYS |
| 收稿时间： | 2009-04-27 |
Vibration Mode Analysis of Roots Blower's Shell |
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| WANG Fu-mao,HE Jing-yu,ZHAO Li-fang,LI Zhi-min,DING Hong-chang. Vibration Mode Analysis of Roots Blower's Shell[J]. Noise and Vibration Control, 2010, 30(1): 15-17. DOI: 10.3969/j.issn.1006-1355.2010.01.015 |
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| Authors: | WANG Fu-mao HE Jing-yu ZHAO Li-fang LI Zhi-min DING Hong-chang |
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| Affiliation: | (1. College of Mechanical and Electronic Engineering, Shandong University of Science and Technology, Qingdao Shandong266510, China; 2. The Second Machine Tool Group Co. Ltd, Jinan250000, China) |
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| Abstract: | In this paper, the dynamic characteristic of Roots blower's shell is analyzed by the ANSYS code. The natural frequencies and the vibration modes of the shell are given. The output of computation shows that the natural frequency of the shell is higher than the fundamental frequency of the rotor system, and the vibration modes of the shell structure are mainly bending, twisting, and their combination. The dynamic analysis of the shell may predict the faults in structural design, and provide some scientific basis for reducing the structural vibration and the noise of the Roots blower. |
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| Keywords: | vibration and wave Roots blower shell modal analysis finite element ANSYS |
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