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논문 기본 정보

자료유형
학술저널
저자정보
WonJong Eun (Seoul National University) JaeWon Kim (Korea Advanced Institute of Science and Technology) Oh-Joon Kwon (Korea Advanced Institute of Science and Technology) Chanhoon Chung (Korea Aerospace Industries) Sang-Joon Shin (Seoul National University) Olivier A. Bauchau (University of Maryland)
저널정보
한국항공우주학회 International Journal of Aeronautical and Space Sciences International Journal of Aeronautical and Space Sciences Volume.18 Number.1
발행연도
2017.3
수록면
70 - 81 (12page)
DOI
10.5139/IJASS.2017.18.1.70

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초록· 키워드

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Various components of an engine nozzle are modeled as flexible multi-body components that are operated under high temperature and pressure. In this paper, in order to predict complex behavior of an engine nozzle, thermo-fluid-flexible multibody dynamics coupled analysis framework was developed. Temperature and pressure on the nozzle wall were obtained by the steady-state flow analysis for a two-dimensional nozzle. The pressure and temperature-dependent material properties were delivered to the flexible multi-body dynamics analysis. Then the deflection and strain distribution for a nozzle configuration was obtained. Heat conduction and thermal analyses were done using MSC.NASTRAN. The present framework was validated for a simple nozzle configuration by using a one-way coupled analysis. A two-way coupled analysis was also performed for the simple nozzle with an arbitrary joint clearance, and an asymmetric flow was observed. Finally, the total strain result for a realistic nozzle configuration was obtained using the one-way and two-way coupled analyses.

목차

Abstract
1. Introduction
2. Theoretical Elements of the Present Analysis
3. Combined Analytical Framework
4. Validation of the Individual Element in the Present Analysis
5. Numerical Results for the Present Coupled Analysis
5. Conclusion
References

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UCI(KEPA) : I410-ECN-0101-2017-558-002392136