Description:
<jats:title>Abstract</jats:title>
<jats:p>Due to the complexity of aircraft interior system, some systems need to design components installed in the fuselage, which will open in the fuselage on the formation, at the same time as the aircraft aerodynamic design requirements, the system must be in the form of the opening cover is closed, so in the design of the fuselage flap design system is particularly important. This paper mainly introduces a hinged cover in common design points and design points of cap shape.</jats:p>