| 转子干摩擦阻尼器及其减振机理 |
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| 引用本文： | 范天宇,廖明夫. 转子干摩擦阻尼器及其减振机理[J]. 机械科学与技术, 2003, 22(5): 743-745,760 |
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| 作者姓名： | 范天宇 廖明夫 |
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| 作者单位： | 西北工业大学旋转机械与风能装置测控研究所 西安710072(范天宇)，西北工业大学旋转机械与风能装置测控研究所 西安710072(廖明夫) |
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| 摘 要： | 建立了用于转子系统的干摩擦阻尼器的结构模型和力学模型 ,分析了带干摩擦阻尼器转子的运动 ,探明了干摩擦阻尼器的阻尼效果和镇定机理 ,给出了确定干摩擦阻尼器镇定边界的能量平衡方法。分析结果表明 ,干摩擦阻尼器可用于转子系统减振和失稳振动的镇定
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| 关 键 词： | 干摩擦阻尼器 转子 失稳振动 镇定边界 |
| 文章编号： | 1003-8728(2003)05-0743-03 |
Dynamic Behavior of a Rotor with Dry Friction Dampers |
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| FAN Tian-yu,LIAO Ming-fu. Dynamic Behavior of a Rotor with Dry Friction Dampers[J]. Mechanical Science and Technology for Aerospace Engineering, 2003, 22(5): 743-745,760 |
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| Authors: | FAN Tian-yu LIAO Ming-fu |
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| Abstract: | A model of a dry friction damper is suggested and incorporated into a Jeffcott rotor. Its advantages of damping and stabilizing the vibration of the rotor are revealed by an investigation on the motion of the rotor with dry friction dampers. A boundary limit of the stabilization provided by the dry friction dampers is obtained, which is A lim=2Fμπ|D|s (F-the normal force acting on the friction plane; μ-the friction coefficient; D-the inherent negative damping of the rotor; s-the stiffness of the rotor). It follows that the dry friction damper may be a promising replacement of the squeeze film damper in some circumstances. |
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| Keywords: | Dry friction damper Rotor Stabilization of unstable motion Boundary limit of stabilization |
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