| 基于非线性输出频率响应函数的转子系统碰摩故障的定位方法研究 |
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| 引用本文： | 韩清凯,杨英,郎志强,闻邦椿.基于非线性输出频率响应函数的转子系统碰摩故障的定位方法研究[J].科技导报(北京),2009,27(2). |
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| 作者姓名： | 韩清凯 杨英 郎志强 闻邦椿 |
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| 作者单位： | 韩清凯,郎志强,闻邦椿,HAN Qingkai,LANG Zhiqiang,WEN Bangchun(东北大学机械工程与自动化学院,沈阳,110004);杨英,YANG Ying(英国谢菲尔德大学自动控制与系统工程系,Sheffield,S1 3JD,英国)
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| 基金项目： | 国家自然科学基金，国家高技术研究发展计划(863计划) |
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| 摘 要： | 提出采用一种新的基于非线性输出频率响应函数(NOFRFs)的方法,进行转子系统碰摩故障的定位识别.NOFRFs由非线性系统的Volterra级数理论发展起来.对多自由度振动系统中的非线性环节具有定量的检测能力.对不同碰摩位置的转轴横向振动进行有限元仿真,进而计算NOFRF函数的值,用于对碰摩所处的区间位置进行判定.
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| 关 键 词： | 转子系统 碰摩 故障定位 |
A Novel Method for Locating Rub-Impacts in Rotor Systems Using a Nonlinear Output Frequency Response Functions |
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| HAN Qingkai,YANG Ying,LANG Zhiqiang,WEN Bangchun . School of Mechanical Engineering , Automation,Northeastern University,Shenyang ,China.A Novel Method for Locating Rub-Impacts in Rotor Systems Using a Nonlinear Output Frequency Response Functions[J].Science & Technology Review,2009,27(2). |
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| Authors: | HAN Qingkai YANG Ying LANG Zhiqiang WEN Bangchun School of Mechanical Engineering Automation Northeastern University Shenyang China |
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| Institution: | HAN Qingkai1,YANG Ying1,LANG Zhiqiang2,WEN Bangchun1 1. School of Mechanical Engineering , Automation,Northeastern University,Shenyang 110004,China 2. Department of Automatic Control , Systems Engineering,University of Sheffield,Sheffield,S1 3JD,UK |
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| Abstract: | A novel method for locating rub-impacts along a rotor shaft is proposed based on the concept of Nonlinear Output Frequency Response Functions (NOFRFs). As one of the most common damaging malfunctions of rotating machineries, the rub - impacts in a rotor system are often modeled as a nonlinear problem and the identification of their locations is important in industrial applications. The NOFRFs were developed based on the Volterra series theory of nonlinear systems and found to be effective in detecting nonli... |
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| Keywords: | NOFRF |
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