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논문 기본 정보

자료유형
학술대회자료
저자정보
Yimin SHAO (Chongqing University) Wenbing Tu (Chongqing University) Fengshou GU (University of Huddersfield)
저널정보
제어로봇시스템학회 제어로봇시스템학회 국제학술대회 논문집 ICCAS 2010
발행연도
2010.10
수록면
596 - 599 (4page)

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초록· 키워드

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An internal impact usually happens when there is a small defect in one part of rolling bearings. The Fault signal from this impact is always masked by different noises such as strong vibrations from other parts and the random noise of instrumentation, which makes it difficult to extract an accurate feature signal for early fault diagnosis. In this paper, a simulation study is conducted using the method of finite element analysis (FEA) to understand the vibration characteristics from the small impact. The vibration responses have been modelled based on a typical bearing assembly. Common faults including outer ring defect, inner ring defect and rolling ball defect are simulated and their vibration responses are compared between different faults and at different locations in the bearing housing. The results obtained have shown that under the same defect size, the vibration from the outer ring is the highest whereas that from the rolling ball is the smallest. In addition the vibration close to the mounting hole attenuates considerably compared to that close to outer ring. These findings provide fundamental information to place vibration sensors and to analyse vibration signals.

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Abstract
1. INTRODUCTION
2. THE FINITE ELEMENT MODEL OF BEARINGS
3. EXPLICIT DYNAMIC ALGORITHMS
3. DEFECT MODELS
4. ANALYSIS
5. CONCLUSIONS
Acknowledgements
REFERENCES

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