CAJ | 학술논문

为研究大型柔性飞艇及其悬挂屏结构体系力学性能，以25 m验证飞艇（ ZY-1）放大3倍的模型为对象，分析了仅考虑内外压差自平衡体系和考虑浮力、重力的平衡体系结构性能。基于柔性飞艇主气囊初始形状，通过充气压力静力非线性分析得到充气平衡形态位形和应力。利用兰索斯法分析了含悬挂屏飞艇结构在2种平衡体系中不同气压下的自振特性；探讨了悬挂屏悬索制作误差对自振特性影响。分析表明：悬挂屏悬索与囊体连接部位是飞艇的薄弱部位，囊体的内外压差和压力梯度的大小对悬挂屏力学性能影响显著；悬挂屏悬索制作误差导致囊体局部形变，从而改变悬挂屏力学性能。
위연구대형유성비정급기현괘병결구체계역학성능，이25 m험증비정（ ZY-1）방대3배적모형위대상，분석료부고필내외압차자평형체계화고필부력、중력적평형체계결구성능。기우유성비정주기낭초시형상，통과충기압력정력비선성분석득도충기평형형태위형화응력。이용란색사법분석료함현괘병비정결구재2충평형체계중불동기압하적자진특성；탐토료현괘병현색제작오차대자진특성영향。분석표명：현괘병현색여낭체련접부위시비정적박약부위，낭체적내외압차화압력제도적대소대현괘병역학성능영향현저；현괘병현색제작오차도치낭체국부형변，종이개변현괘병역학성능。
In order to investigate the structural performance of a large flexible airship and its suspended curtain structure , the 1 ∶ 3 scaled ZY-1 demonstration airship was used to simulate the structural performance of the self-e-quilibrium system which was subjected to only pressure differences and an equilibrium system under weight and buoyancy. Based on the initial geometry configuration of the flexible airship envelop, the deformed equilibrium shape and stress are obtained by nonlinear structural analysis under inner pressure. Based on the block Lanczos method, the natural vibration performance was analyzed for the flexible airship with a suspended curtain of two e-quilibrium systems. The effects of the manufacturing errors of the suspended cable length on the structural behavior were analyzed. The results indicate that the local area of the airship envelope connected to the suspended cable is the weak part. Various pressure differences and pressure gradients have significant influence on the mechanical properties of the suspended curtain. The mechanical properties of the suspended curtain may be altered because of manufacturing errors with the suspended cable length which could result in deformation of the local airship enve-lope.