유한요소해석을 이용한 구면 반사경의 허니컴 구조 연구
A Study on Honeycomb Structures of a Spherical Mirror using Finite Element Analysis
3
조회
0
다운로드
3
인용
0
참고문헌
키워드
초록
Zerodur, one of the optical materials, was used for large spherical mirrors in this study. For weight reduction, several types of honeycomb structures were investigated. The finite element simulation was used for deformation and mode analysis. It was revealed that the weight reduction rate and maximum deflection due to the gravity effect vary depending on the honeycomb structures. Additionally, this study highlights the potential of spline-shaped honeycomb structures as an alternative for weight reduction, and triangular honeycomb structures demonstrated the less deformation by the gravity effect. The findings from this study provide valuable insights for designing lightweight and high-performance spherical mirrors in optical systems.
Abstract
Zerodur, one of the optical materials, was used for large spherical mirrors in this study. For weight reduction, several types of honeycomb structures were investigated. The finite element simulation was used for deformation and mode analysis. It was revealed that the weight reduction rate and maximum deflection due to the gravity effect vary depending on the honeycomb structures. Additionally, this study highlights the potential of spline-shaped honeycomb structures as an alternative for weight reduction, and triangular honeycomb structures demonstrated the less deformation by the gravity effect. The findings from this study provide valuable insights for designing lightweight and high-performance spherical mirrors in optical systems.
참고문헌 (12)
- C. J. Burrows, "The Imaging Performance of the Hubble Space Telescope", Astrophysical Journal, Part 2-Letters, 369, pp.L21~L25 (1991)
- J. Hartley, "Field Trip : NASA Goddard Space Flight Center, the James Webb Space Telescope", LessThan3ley, ~ (2016)
- 김봉호, "30 cm 급 반사경 경량화 최적 설계", 한국광학회지, 21(5), pp.214~223 (2010), 한국광학회
- H. Kihm, "Design Optimization of a 1-m Lightweight Mirror for a Space Telescope", Optical Engineering, 52(9), pp.091806~091806 (2013)
- 배종인, "SiC를 이용한 대구경 위성용 망원경 제작", 한국광학회지, 33(2), pp.74~83 (2022), 한국광학회[DOI]
- 김경환, "유한요소해석법을 이용한 자유곡면 반사경의 조립부 형상에 따른 초정밀 가공 특성", 한국기계기술학회지, 17(5), pp.1091~1097 (2015), 한국기계기술학회[DOI]
- 김경환, "지지점 두께에 따른 자유곡면 반사경의 유한요소해석", 한국기계기술학회지, 17(5), pp.978~983 (2015), 한국기계기술학회[DOI]
- 김봉환, "Finite element simulations of ballistic impact on monolithic glass", 한국기계기술학회지, 16(3), pp.1477~1482 (2014), 한국기계기술학회[DOI]