한국소음진동공학회:학술대회논문집 (Proceedings of the Korean Society for Noise and Vibration Engineering Conference)
- 한국소음진동공학회 2008년도 추계학술대회논문집
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- Pages.175-179
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- 2008
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- 1598-2548(pISSN)
공력 Buffet 하증을 고려한 헬리콥터 탐색등의 구조진동해석
Structural Vibration Analysis of Helicopter Search Light Considering Aerodynamic Buffet Load
초록
In this study, computational structural vibration analysis of helicopter search light exposing unsteady buffet load have been conducted using combined advanced numerical methods. Unsteady CFD method based on Navier-Stokes equations is used to predict viscous buffet load due to flow separation effects. Full three-dimensional finite element model is constructed in order to conduct static and structural dynamic analyses of the search light model for two different typical flight speeds. Also, the correct performance of the search light can be physically estimated to examine the actual lighting area considering the effects of structural deformations.
키워드