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科技导报
|专题论文
2009
, 27
(0902) :
29
-32
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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韩清凯1 ,杨英1 ,郎志强2 ,闻邦椿1
作者信息
1. 东北大学机械工程与自动化学院2. 英国谢非尔德大学自动控制与系统工程系
通讯作者:
韩清凯
Research on the Detection Approach for Locating Rub-Impacts in Rotor Systems Using a Nonlinear Output Frequency Response Functions
Affiliations
出版时间: 2009-01-28
文章导航
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。
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 nonlinear components in a multi-DOF vibrating system. The simulations of shaft node transverse vibrations are carried out with finite element method for different rub-impact positions along the shaft. And then the NOFRFs are calculated and their values are used to indicate the possible range where there exist rub-impacts.
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.
科技导报,
2009
, 27
(0902)
: 29
-32
.
.
Research on the Detection Approach for Locating Rub-Impacts in Rotor Systems Using a Nonlinear Output Frequency Response Functions[J].
Science & Technology Review ,
2009
, 27
(0902)
: 29
-32
.
2009年第27卷第0902期
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文章信息
接收时间：2008-11-17
首发时间：2009-01-28
出版时间：2009-01-28
收稿日期：2008-11-17
修回日期：2009-01-04
https://castjournals.cast.org.cn/joweb/kjdb/CN/1242116909571838871
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2种不同金属材料的力学参数
科 属数 种数 占总种数比例 属 种数 占总种数比例 鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78 小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39 多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39 红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87 小菇属 Mycena 11 5.26 光柄菇属 Pluteus 5 2.39 红菇属 Russula 17 8.13 栓菌属 Trametes 5 2.39
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