NONLINEAR FREQUENCY SPECTRAL ANALYSIS OF CRACKED ROTOR BASED ON NOFRF

WU HongXia; HAN Jie; CHEN Hong; QIN DongChen

doi:10.16579/j.issn.1001.9669.2017.06.003

您当前的位置：

首页 >

文章列表页 >

NONLINEAR FREQUENCY SPECTRAL ANALYSIS OF CRACKED ROTOR BASED ON NOFRF

更新时间：2022-09-22

- NONLINEAR FREQUENCY SPECTRAL ANALYSIS OF CRACKED ROTOR BASED ON NOFRF
- Journal of Mechanical Strength Vol. 39, Issue 6, Pages: 1271-1274(2017)
- 作者机构：
  
  1. 郑州大学机械工程学院
  2. 郑州大学化工与能源学院
- 作者简介：
- 基金信息：
- DOI：10.16579/j.issn.1001.9669.2017.06.003
  CLC：
扫描看全文
WU HongXia, HAN Jie, CHEN Hong, et al. NONLINEAR FREQUENCY SPECTRAL ANALYSIS OF CRACKED ROTOR BASED ON NOFRF. [J]. 39(6):1271-1274(2017)
DOI：

WU HongXia, HAN Jie, CHEN Hong, et al. NONLINEAR FREQUENCY SPECTRAL ANALYSIS OF CRACKED ROTOR BASED ON NOFRF. [J]. 39(6):1271-1274(2017) DOI： 10.16579/j.issn.1001.9669.2017.06.003.

摘要

建立了裂纹转子非线性逼近模型,论述了非线性输出频域响应函数(NOFRF)及其非线性频谱分析理论,基于该理论对裂纹转子系统的各阶NOFRF进行了仿真分析,该分析结果说明了裂纹转子系统新频域成份是如何产生的,对裂纹转子的超谐波成份和亚共振现象进行了解释,并进行了试验分析,结果表明了高阶NOFRF比一阶对转子裂纹深度更敏感,为裂纹转子的精确故障诊断提供了理论基础。

Abstract

The nonlinear approximation model of cracked rotor,to explain the nonlinear phenomena,is constructed. The nonlinear output frequency response function（ NOFRF） and the theory of nonlinear frequency spectral analysis are illustrated.Based on this theory,the simulation analysis of cracked rotor is accomplished. The analysis provides insight into how new frequency generates. Additionally,the nonlinear phenomena of cracked rotor,including the generation of super-harmonic components and sub-resonances are explained. Experimental result shows that the higher order NOFRF is sensitive to the racked rotor with cracks of different depth. This research study establishes an important theory basis for accurate fault diagnosis of cracked rotor.

关键词

裂纹转子非线性频谱故障诊断NOFRF

Keywords

Cracked rotorNonlinear frequency spectralFault diagnosisNonlinear output frequency response functions（NOFRF）

references

Views

227

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

CRACK FAULT DIAGNOSIS OF ROTOR BASED ON VMD AND AR MODEL

FAULT DIAGNOSIS METHOD OF ROTOR SYSTEM WITH SLANT CRACK BASED ON NONLINEAR OUTPUT FREQUENCY RESPONSE FUNCTION

APPLICATION OF SEMI SUPERVISED LAPLACE SCORE IN ROLLING BEARING FAULT DIAGNOSIS (MT)

A SINGULAR INTERVAL RECONSTRUCTION LOCAL MEAN DECOMPOSITION AND ITS APPLICATION IN BEARING FAULT DIAGNOSIS OF RECIPROCATING COMPRESSOR (MT)

FAULT DIAGNOSIS OF GEARBOX BASED ON ADAPTIVE EEMD AND FAST KURTOGRAM

Related Author

No data

Related Institution

Guangxi Scientific Experiment Center of Mining,Metallurgy and Environment,Guilin University of Technology

College of Mechanical and Control Engineering,Guilin University of Technology

College of Electrical Engineering,Zhejiang University

School of Aeronautical Manufacturing Engineering,Nanchang Hangkong University

School of Mechanical Engineering, Shenyang University of Technology

⁰