NACELLE INLET LIP FUSE STRUCTURE

An inlet lip structure includes: an annular inner barrel with forward and aft ends; an annular outer barrel with forward and aft ends; an annular aft bulkhead interconnecting the aft ends of the innerand outer barrels; an annular forward bulkhead interconnecting the forward ends of the inner and outer barrels; an annular lip skin interconnecting the forward ends of the inner and outer barrels, the lip skin having a C-shaped cross-section comprising a nose with inner and outer legs extending therefrom, the lip skin having opposed inner and outer surfaces, wherein the outer leg of the lip skinincorporates a fuse element having an ultimate strength which is lower than an ultimate strength of the remainder of the lip skin. 一种入口唇部结构包括：环形内筒，该环形内筒带有前端和后端；环形外筒，该环形外筒带有前端和后端；环形后舱壁，该环形后舱壁使该内筒的后端与该外筒的后端互相连接；环形前舱壁，该环形前舱壁使该内筒的前端与该外筒的前端互相连接；环形唇部表皮，该环形唇部表皮使该内筒的前端与该外筒的前端互相连接，该唇部表皮具有C形横截面，包括具有从其延伸的内腿部和外腿部的鼻部，该唇部表皮具有相对的内表面和外表面；以及其中，该唇部表皮的该外腿部包含熔断元件，该熔断元件的极限强度比该唇部表皮的其余部分的极限强度低。