비행 환경에 따른 극초음속 비행체의 구조 건전성에 관한 연구

국문 초록 (Abstract)

극초음속 비행체의 경우 고속으로 이동하는 유체와 구조물 표면사이의 마찰에 의해 공력 가열현상이 발생하며, 이로 인해 구조물의 강성이 저하되고 열 변형이 발생하게 된다. 이러한 물리적인 현상들은 비행체의 열공탄성학적인 불안정성을 초래할 수 있으며, 이와 더불어 구조물의 열적 안전성 감소시킬 수 있다. 이에 본 연구에서는 비행고도/비행시간/마하수를 변화시켜가며 공력열탄 성학적 연계해석을 수행하고, 해석된 결과를 이용하여 구조물의 열적 안전성과 동적 안정성에 대해 고찰을 하였다. 구조물의 동적 안전성을 판별하기 위해 계산된 변위와 자동회귀이동평균 기법을 이용하였으며, 내열 안전성은 계산된 온도와 구조물의 녹는점을 비교를 통해 판별을 하였다. 이를 통해 극초음속 비행체의 구조 건전성을 확보하기 위한 설계 방향을 제시하였다.

다국어 초록 (Multilingual Abstract)

In hypersonic regime, the complicated interaction between the air and surface of aircraft results in intensive aerodynamic heating on body. Provided this phenomenon occurs on a hypersonic vehicle, the temperature of the body extremely increases. And consequently, thermal deformation is produced and material properties are degraded. Furthermore, those affect both the aerothermoelastic stability and thermal safety of structures significantly. With the background, thermal safety and dynamic stability are studied according to the altitude, flight time and Mach number. Based on the investigation, design guideline is suggested to guarantees the structural integrity of hypersonic vehicles in terms of both of thermal safety and dynamic stability.

목차 (Table of Contents)

• ABSTRACT
• 초록
• Ⅰ. 서론
• Ⅱ. 본론
• Ⅲ. 결론
• References

참고문헌 (Reference)

1 강연철, "극초음속 비행체의 구조설계를 위한 공력 열하중 요소 개발" 한국항공우주학회 46 (46): 892-901, 2018

2 Meijer, M. C., "Zeroth-order flutter prediction for cantilevered plates in supersonic flow" 57 : 196-205, 2015

3 Harsha, P. T., "X-43A Vehicle Design and Manufacture" 2005

4 Wall, M., "X-37B Military Space Plane’s Latest Mystery Mission Passes 600 Days"

5 Majumdar, D., "We Now Know How Russia's New Avangard Hypersonic Boost-Glide Weapon Will Launch"

6 Culler, A. J., "Studies on Fluid-Thermal-Structural Coupling for Aerother-moelasticity in Hypersonic Flow" 48 (48): 1721-1738, 2010

7 Falkiewicz, N. J., "Reduced-Order Aerothermoelastic Framework for Hypersonic Vehicle Control Simulation" 49 (49): 1625-1646, 2011

8 Shinjo, J., "Numerical Simulation of Surface Melting Due to Aero-dynamic Heating" 47 (47): 281-286, 2005

9 Pak, C. G., "New time-domain technique for flutter boundary identifi- cation" 1992

10 Gibbs, Y., "NASA Armstrong Fact Sheet: X-15 Hypersonic Research Program"

11 Gibbs, Y., "NASA Armstrong Fact Sheet: Hyper-X Program"

12 Boyer, R., "Materials Properties Handbook: Titanium Alloys" ASM International 1994

13 "MIL-HDBK-5H: Metallic Materials and Elements for Aerospace Vehicle Structures"

14 김성룡, "KSR-III 공력가열 해석 및 비행시험" 한국항공우주학회 32 (32): 54-63, 2004

15 Panda, A, "Introducting the DF-17: China's Newly Tested Ballistic Missile Armed With a Hypersonic Glide Vehicle"

16 Yuxun Zhang, "Influence of Temperature-Dependent Properties of Aluminum Alloy on Evolution of Plastic Strain and Residual Stress during Quenching Process" MDPI AG 7 (7): 228-, 2017

17 Anderson, J. D., Jr., "Hypersonic and High- Temperature Gas Dynamics" 2006

18 Lamorte, N., "Hyper-sonic Aeroelastic and Aeorthermoelastic Studies Using Computational Fluid Dynamics" 52 (52): 2062-2078, 2014

19 Lamorte, N., "Hyper- sonic Aeroelastic Stability Boundary Computation using Radial Basis Functions for Mesh Deformation" 2012

20 McNamara, J. J., "Flutter-Boundary Identification for Time-Domain Computational Aeroelasticity" 45 (45): 1546-1555, 2007

21 Benck, R. F., "Elastic Constants of Aluminum Alloys 2024-T3510, 5083-H131 and 7039-T64 as Measured by a Sonic Technique" U.S.A. Ballistic Research Laboratories 1976

22 Gupta, K. K., "Development Fluid-Dynamics Based Aerothermoel-astic Simulation Capability with Application to Flight Vehicles" 53 (53): 360-368, 2016

23 Ellis, D. A., "Design and Fabrication of a Radiative Actively Cooled Honeycomb Sandwich Structural Panel for a Hypersonic Aircraft" NASA 1978

24 Bennett, R. M., "Curve Fitting of Aeroelastic Transient Response Data with Exponential Functions" NASA 43-58, 1975

25 Bousman, W. G., "Application of the Moving-Block Analysis" AIAA 755-763, 1981

26 Klock, R. J., "Aerothermoelastic Reduced-Order Model of a Hypersonic Vehicle" 2015

27 McNamara, J. J., "Aeroelastic and Aerothermoelastic Analysis in Hypersonic Flow: Past, Present, and Future" 49 (49): 1089-1122, 2011

28 Oh, B. S., "Aerodynamic Heating Analysis of KSR-II" 27 (27): 121-127, 1999

29 McNamara, J. J., "Aero-elastic and Aerothermoelastic Behaviors" 46 (46): 2591-2610, 2008

30 Heeg, J., "Active Control of Aerothermoelastic Effects for a Conceptual Hypersonic Aircraft" 30 (30): 453-458, 1993

31 "Abaqus Analysis User’s Manual v6.10"

32 Dowell, E. H., "A Modern Course in Aero- elasticity, 5th Revision and Enlarged Edition" Springer 2015