A liftable sail with a double-layer polygonal mast structure is characterized in that the bottom of a fixed mast is fixed on a sail base, a sliding mast is nested in the fixed mast, and the sliding mast slides up and down relative to the fixed mast. The cross sections of the mast walls of the sliding mast and the fixed mast are polygons with symmetrical structures, the mast walls of the sliding mast and the fixed mast are double-layer mast walls, a plurality of sliding guide rails and guide rail panels are arranged between the sliding mast and the fixed mast in the circumferential direction of the sliding mast, and the sliding guide rails are fixedly connected with the inner-layer fixed mast wall; a sliding panel is welded to the position, corresponding to the sliding guide rail, of the outer-layer sliding mast wall. According to the invention, the section characteristics are effectively utilized, the section characteristics are improved, the wind load of a large-scale sail device can be better borne, and the use of a super-thick plate is avoided. The use requirements of the multi-angle sail can be met, the load transfer between the masts is efficiently carried out, the system reliability is improved, and the structural risk caused by stress concentration is effectively reduced.
一种双层多边形桅杆结构的可升降风帆,固定桅杆底部固定在风帆基座上,固定桅杆内部嵌套有滑动桅杆,滑动桅杆相对固定桅杆上下滑动。滑动桅杆、固定桅杆的桅杆壁横截面为结构对称的多边形,滑动桅杆、固定桅杆的桅杆壁均采用双层桅杆壁,滑动桅杆与固定桅杆之间、沿滑动桅杆周向设置有多个滑动导轨和导轨面板,滑动导轨与内层固定桅杆壁固定连接,外层滑动桅杆壁在与滑动导轨相对应的位置焊接有滑动面板。本发明有效利用了截面特征提高了剖面特性,可更好的承担大尺度风帆装置的风载荷,避免了超厚板的使用。可满足多角度风帆的使用要求,高效的进行桅杆间载荷传递,提高了系统可靠性,有效减轻了应力集中带来的结构风险。
Liftable sail with double-layer polygonal mast structure
一种双层多边形桅杆结构的可升降风帆
2023-03-14
Patent
Elektronische Ressource
Chinesisch