| 基于实测冲击响应的转子碰摩力方向识别方法 |
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| 引用本文： | 李允公,刘杰,张金萍.基于实测冲击响应的转子碰摩力方向识别方法[J].机械与电子,2007(2):17-19. |
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| 作者姓名： | 李允公 刘杰 张金萍 |
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| 作者单位： | 1. 东北大学机械工程与自动化学院,辽宁,沈阳,110004
2. 东北大学机械工程与自动化学院,辽宁,沈阳,110004;沈阳化工学院机械工程学院,辽宁,沈阳,110142 |
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| 摘 要： | 提出了基于实测冲击响应的转子碰摩故障诊断特征提取方法.实验表明,该方法能够克服已有方法的缺点,可以准确提取信号中的冲击响应成分,且易于实际应用.在此基础上,提出了确定转子碰摩方向即静子碰摩位置的方法,该方法将转子轴心轨迹中的冲击响应成分投影到各初始相位不同的旋转坐标系中,进而以初始相位为参数,以投影能量最大化为目标进行寻优,从而确定碰摩力方向.并通过实验验证了方法的可行性.
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| 关 键 词： | 碰摩转子 冲击响应 基函数 旋转坐标 冲击响应 转子碰摩 碰摩力 方向 识别方法 Impulse Response Based Rotor Force Direction 实验验证 寻优 目标 大化 能量 参数 旋转坐标系 初始相位 投影 轴心轨迹 |
| 文章编号： | 1001-2257（2007）02-0017-03 |
| 修稿时间： | 2006-09-05 |
A Method for Identifying the Direction of Rubbing Force of Rotor Based on the Measured Impulse Response |
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| LI Yun-gong,LIU Jie,ZHANG Jin-ping.A Method for Identifying the Direction of Rubbing Force of Rotor Based on the Measured Impulse Response[J].Machinery & Electronics,2007(2):17-19. |
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| Authors: | LI Yun-gong LIU Jie ZHANG Jin-ping |
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| Affiliation: | 1. School of Mechanical Engineering and Automation. Northeastern University.Shengyang 110004, China; 2. School of Mechanical Engineering,Shenyang Institute of Chemical Technology.Shengyang 110142.China |
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| Abstract: | The new signature extracting method of rubbing rotor is put forward,which is based on the measured impulse response of rotor,and the experiment result shows that this method hasn't the shortcoming of known methods,and can exactly extract the component of impulse response.On this basis,the method of identifying the direction of rubbing force is put forward,this method projects the component of impulse response in the orbit of rubbing rotor to the rotating coordinates which is defined by initial phase,and the maximal power is used as optimal goal to determine the direction of rubbing force.And the experiment result shows that this method is effective. |
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| Keywords: | rubbing rotor impulse response basis function rotating coordinates |
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