위그선 복합재료 구조물의 응력 해석 및 실험 평가에 관한 연구

Abstract

A structural analysis and semi-structural experimental evaluation of all composite WIG vehicle structure in order to verify major load path and structural stability were studied and presented in this paper. Semi-experimental evaluation was conducted to confirm the stress analysis result. As a result of comparison between analysis and test results, it was verified that these results were coincided with well. Stress and stiffness analyses on the maneuvering load case were conducted to confirm the structural healthiness of all composite WIG vehicle by using the verified applicable FE model on the basis of this comparison result. The healthiness of this WIG vehicle structure on the maneuvering load was good in global without local skin buckling. WIG structure is safe for the Tsai-Wu failure criterion and wing skin design change is proposed to improve the stiffness to avoid the skin buckling found in this study.