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논문 기본 정보

자료유형
학술저널
저자정보
Guoqiang Hou (Northwestern Polytechnical University) Hua Su (Northwestern Polytechnical University) Shuaike Zhao (Northwestern Polytechnical University) Ke Li (Northwestern Polytechnical University)
저널정보
한국유체기계학회 International Journal of Fluid Machinery and Systems International Journal of Fluid Machinery and Systems Vol.16 No.3
발행연도
2023.9
수록면
282 - 295 (14page)
DOI
10.5293/IJFMS.2023.16.3.282

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초록· 키워드

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The paper presents a method for predicting the circumferential relative sliding between the seal ring and the outer rotor in the dual rotor aero engine intershaft seal under high temperature and high speed conditions A criterion is proposed for determining the circumferential sliding of the intershaft end face gas film seal taking into account the effects of centrifugal expansion and thermal expansion. The mechanical mechanism of the circumferential sliding between the seal ring and the outer rotor is investigated. The expansion of the seal ring and the outer rotor is simplified to a plane thermoelastic mechanical problem, and the expansion and deformation of the two parts are calculated. The influence of material characteristics, temperature difference, and initial interference on the expansion deformation and connection relationship of the seal ring and outer rotor is analyzed Moreover, the critical sliding speed region between the seal ring and the outer rotor is determined. The analysis method provides theoretical guidance for predicting the circumferential sliding of the seal ring in practical engineering applications.

목차

Abstract
1. Introduction
2. Seal structure and operating principle
3. Analysis of the relative sliding of the seal ring and the outer rotor in the circumferential direction
4. Verification
5. Results and discussions
6. Conclusion
References

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