Composites Research

  • 제28권4호
  • /
  • Pages.204-211
  • /
  • 2015
  • /
  • 2288-2103(pISSN)
  • /
  • 2288-2111(eISSN)
한국복합재료학회 (The Korean Society for Composite Materials)
권호 표지
DOI QR코드

DOI QR Code

VABS를 이용한 임의의 단면과 재료 분포를 가진 비균일 복합재료 보의 변형률 복원 해석

Strain Recovery Analysis of Non-uniform Composite Beam with Arbitrary Cross-section and Material Distribution Using VABS

  • Jang, Jun Hwan (Koreanair. Military Aero-structure Group) ;
  • Ahn, Sang Ho (Department of Automobile Engineering, Shinhan University)
  • 투고 : 2015.06.28
  • 심사 : 2015.08.27
  • 발행 : 2015.08.31
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

본 논문에서는 블레이드와 같이 세장비가 크고 초기 비틀림이 존재하는 복합재료로 구성된 날개 구조물에 대한 이차원 단면의 차원축소와 복원관계를 이론적으로 기술하고 이를 이용한 복합재료 로터 블레이드의 효율적인 설계 과정을 기술하였다. 차원축소와 복원해석 수치해석 프로그램인 VABS를 이용하여 단면해석을 수행하고 연성이 고려된 강성행렬과 질량행렬을 중립점에 연결하여 블레이드의 특성을 포함한 1차원 보 모델링을 구성하였다. 1차원 보 모델을 통해 블레이드의 거동을 확인하고 내부하중을 계산하여 단면위치에서 변형률 복원을 수치적으로 계산하고 이산화 된 단면에 수치적으로 매칭하여 시각적으로 형상화하였다.

This paper presents a theory related to a two-dimensional linear cross-sectional analysis, recovery relationship and a one-dimensional nonlinear beam analysis for composite wing structure with initial twist. Using VABS including a related theory, the design process of the composite rotor blade has been described. Cross-sectional analysis was performed at cutting point including all the details of geometry and material. Stiffness matrix and mass matrix were linked to each section to make 1D beam model. The 3D strain distributions within the structure were recovered based on the global behavior of the 1D beam analysis and visualize numerical results.

키워드

참고문헌

  1. (International Journal) Hodges, D.H. and Popescu, B., "On Asymptotically Correct Timoshenko-like Anisotropic Beam Theory", International Journal of Solids and Structures, pp. 37, 1999, 535-558.
  2. (International Journal) Cesnik, C.E.S. and Hodges, D.H., "Variational-Asymptotical Analysis of Initially Twisted and Curved Composite Beams", International Journal for Engineering Analysis and Design, Vol. 1, 1994, pp. 177-187.
  3. (International Journal) Hodges, D.H. and Yu, W., "A Rigorous, Engineer-friendly Approach for Modelling Realistic, Composite Rotor Blades", Wind Energy, Vol. 10, 2007, pp. 179-193. https://doi.org/10.1002/we.215
  4. (International Journal) Volovoi, V.V., Hodges, D.H., Cesnik, C.E.S., and Popescu, B., "Assessment of Beam Modeling Methods for Rotor Blade Applications, Mathematical and Computer Modelling", Vol. 33, 2001, pp. 1099-1112. https://doi.org/10.1016/S0895-7177(00)00302-2
  5. (International Journal) Hodges, D.H., Atilgan, A.R., Cesnik, C.E.S., and Fulton, M.V., "On a Simplified Strain Energy Function for Geometrically Nonlinear Behavior of Anisotropic Beams", Composite Engineering, Vol. 2, 1992, pp. 513-526. https://doi.org/10.1016/0961-9526(92)90040-D
  6. (International Journal) Cesnik, C.E.S. and Hodges, D.H., "VABS: A New Concept for Composite Rotor Blade Cross-Sectional Modeling", Journal of the American Helicopter Society, Vol. 42, 1997, pp. 27-38.. https://doi.org/10.4050/JAHS.42.27
  7. (International Journal) Yu, W., Hodges, D.H., Volovoi, V.V., and Cesnik, C.E.S., "On Timoshenko-like Modeling of Initially Curved and Twisted Composite Beams", International Journal of Non-Linear Mechanics, Vol. 39, 2002c, pp. 5101-5121.
  8. (International Journal) Cesnik, C.E.S. and Hodges, D.H., "Stiffness Constants for Initially Twisted and Curved Composite Beams," Applied Mechanics Review, Vol. 46, 1993, pp. 211-220. https://doi.org/10.1115/1.3120338
  9. (Manual) W. Johnson, CAMRAD II Comprehensive Analytical Model of Rotorcraft Aerodynamics and Dynamics, Johnson Aeronautics, 2008.
  10. (International Journal) Cesnik, C.E.S. and Hodges, D.H., "Stiffness Constants for Composite Beams Including Large Initial Twist and Curvature Effects", Applied Mechanics Review, Vol. 48, 1995, pp. 61-67. https://doi.org/10.1115/1.3005084
  11. (International Journal) Cesnik, C.E.S. and Shin, S., "On the Modeling of Integrally Actuated Helicopter Blades", Mathematical and Computer Modelling, Vol. 33, 2001, pp. 1765-1789.
  12. (International Journal) Popescu, B., Hodges, D.H., and Cesnik, C.E.S., "Obliqueness Effects in Asymptotic Cross-Sectional Anlaysis of Composite Beams", Computers and Structures, Vol. 76, 2000, pp. 533-543. https://doi.org/10.1016/S0045-7949(99)00120-0
  13. (International Journal) Cesnik, C.E.S. and Shin, S.-J., "On the Modeling of Active Helicopter Blades", International Journal of Solids and Structures, Vol. 38, 2001, pp. 1765-1789. https://doi.org/10.1016/S0020-7683(00)00135-9
  14. (Manual) Yu, W., "VABS Manual for Users", 2010.
  15. (International Journal) Reddy, J.N., "On Laminated Composite Plate with Integrated Sensors and Actuators", Engineering Structures, 1999, pp. 568-593.
  16. (International Journal) Yu, W. and Blair M., "GEBT A General-Purpose Implementation of the Mixed Formulation of the Geometrical Exact Beam Theory", Composite Structure, Vol. 94, 2012, pp. 2677-2689. https://doi.org/10.1016/j.compstruct.2012.04.007
  17. (International Journal) Hodges, D.H., "Geometrically-Exact, Intrinsic Theory for Dynamics of Curved and Twisted Anisotropic Beams", AIAA Journal, Vol. 41, 2003, pp. 1131-1137. https://doi.org/10.2514/2.2054