Journal of the Korean Society for Aeronautical & Space Sciences (한국항공우주학회지)

The Korean Society for Aeronautical and Space Sciences (한국항공우주학회)
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Nonlinear Shell Finite Element and Parallel Computing Algorithm for Aircraft Wing-box Structural Analysis

항공기 Wing-box 구조해석을 위한 비선형 쉘 유한요소 및 병렬계산 기법 개발

  • Kim, Hyejin (Department of Aerospace Engineering, Jeonbuk National University) ;
  • Kim, Seonghwan (Department of Aerospace Engineering, Jeonbuk National University) ;
  • Hong, Jiwoo (Department of Aerospace Engineering, Jeonbuk National University) ;
  • Cho, Haeseong (Department of Aerospace Engineering, Jeonbuk National University)
  • Received : 2020.03.24
  • Accepted : 2020.07.27
  • Published : 2020.08.01
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Abstract

In this paper, precision and efficient nonlinear structural analysis for the aircraft wing-box model is developed. Herein, nonlinear shell element based on the co-rotational (CR) formulation is implemented. Then, parallel computing algorithm, the element-based partitioning technique is developed to accelerate the computational efficiency of the nonlinear structural analysis. Finally, computational performance, i.e., accuracy and efficiency, of the proposed analysis is evaluated by comparing with that of the existing commercial software.

본 논문에서는 항공기 Wing-box 모델에 대한 비선형 구조해석의 계산을 정확하고 효율적으로 수행하기 위해 병렬계산 알고리즘을 개발하였다. 이를 위해 co-rotation 이론 기반 비선형 쉘 요소를 적용하였으며 요소기반 분할 병렬계산 알고리즘을 개발하였다. 기 개발 해석은 선행연구결과 및 기존 상용프로그램의 예측결과와 비교하여 정확성을 확인하였으며 병렬계산의 효율성을 분석하였다. 마지막으로 고세장비 날개 wing-box 구조에 적용하였으며 단방향 공력-구조 결합해석을 수행하였다.

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References

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