SHELL CONSTRUCTION CONSISTING OF COMPOSITE FIBER MATERIAL

摘要

PURPOSE: To prevent a panel from being weakened upon assembly and disassembly by providing the longitudinally flexible first area of a shell structure body with an access hole having a cover and a longitudinally rigid second area which surrounds the first area in the structure of a wing of an aircraft. CONSTITUTION: Stringers 6 and 7 are longitudinally provided inside a shell structure body (called a structure body, hereinafter) 2 and an access hole which is opened and closed by a cover 5 is formed between the stringers 6 and 7. Double parts 8 and 9 are inserted between the stringers 6 and 7 and the structure body 2 to have a laminated structure. At this time, the wall thickness of the cover 5 is the same as that of the structure body. The cover 5 is connected to the stringer 7 and the double part 9 by a row of screws 12. The double parts 8 and 9 are formed within the area of longitudinal connecting parts 5c and 5d of the cover 5 to remove longitudinal forces relative to the cover 5. The proportion of fibers relative to the longitudinal direction is±45 deg. to transfer shear forces.