초록 ▼

A structural component having a curved wall, such as an aircraft fuselage or pipe, has a grid structure formed of box frames produced by winding tapes of fiber reinforced synthetic material, so-called prepregs, onto mold bodies. These mold bodies are then assembled on a mandrel for covering with a p

A structural component having a curved wall, such as an aircraft fuselage or pipe, has a grid structure formed of box frames produced by winding tapes of fiber reinforced synthetic material, so-called prepregs, onto mold bodies. These mold bodies are then assembled on a mandrel for covering with a planking and curing whereby the tapes are bonded together to form stringers intersecting with ribs in a grid structure and whereby the planking is bonded to the grid structure. The ribs are reinforced by fiber reinforced belt segments of synthetic material inserted into gaps between adjacent short ends of the mold bodies, whereby these belt segments are bonded to the ribs during curing. The belt segments have a width corresponding to a multiple of the width of the stringers and hence protrude radially inwardly. Preferably, an edge reinforcing strip of fiber reinforced material is arranged alongside the radially inner edge of the belt segments. The mandrel carries support rings which are axially displaceable along the mandrel and which carry mold body support plates by radially adjustable members for placing the support plates into a plurality of different positions for assembling, curing and mold body removal.

대표청구항 ▼

A structural component having a curved wall with a longitudinal axis, comprising longitudinal stringers (20) extending substantially in parallel to said longitudinal axis and having a given width in a direction toward said longitudinal axis and ribs (28) extending substantially perpendicularly to sa

A structural component having a curved wall with a longitudinal axis, comprising longitudinal stringers (20) extending substantially in parallel to said longitudinal axis and having a given width in a direction toward said longitudinal axis and ribs (28) extending substantially perpendicularly to said stringers (20) and circumferentially relative to said longitudinal axis for forming a grid structure, planking means covering said grid structure, said ribs, stringers and planking means being made of fiber reinforced synthetic material and bonded to one another, said ribs further comprising reinforcing belt segments (28) also made of fiber reinforced synthetic material and having a width dimension in the direction toward said longitudinal axis corresponding to a multiple of said given width dimension of said stringers for forming radially extending flanges for reinforcing the respective rib, wherein said ribs and stringers comprise preimpregnated bands of fiber reinforced synthetic material forming rectangular box frames having longitudinal sides and short ends assembled in an end to end and side by side fashion for forming said grid structure, first means bonding said longitudinal sides to each other to form said stringers, and second means bonding said short ends to each other to form said ribs.