Aircraft Forward Section Floor Structure

International journal of aerospace and mechanical engineering volume 2 no 6 december 2015.

Aircraft forward section floor structure.

Looking at the image above let us say the pilots are able to land this aircraft with wheels up in an emergency situation. The floors run outboard from the keel to the turn of the bilge where the bottom turns upward. 14 cfr subpart c section 25 561. Megson in aircraft structures for engineering students fifth edition 2013.

Many manufacturers consider the center line of the aircraft to be a zero station. Loss of structural integrity during flight can be caused by. Typically it extends from a flat vertical surface such as a wall to which it must be firmly attached. A cantilever is a rigid structural element that extends horizontally and is supported at only one end.

An integrated floor for an aircraft fuselage includes a composite panel forming a floor surface and composite beams bonded to the floor panel. To locate structures to the right or left of the center line of an aircraft a similar method is employed. When subjected to a structural load at its far unsupported end the cantilever carries the load. The optimized floor beam model is then statically analyzed to find the maximum stress von mises stress.

Load supporting aircraft flooring systems preferably are provided with a longitudinally separated series of transverse bridges having an upper doubler flange which defines latitudinally separated upper openings and a latitudinally separated series of beams which include an upper flange and. This is where they are attached. The beams extend longitudinally within the fuselage and support the floor. The athwartship structure consists of transverse frames and floors.

They land it on its belly and on a stretch of flat land can be a body of water as well. Manufacturers use some system of station marking. Ultimate loads 9 0g fwd inertia load factor. Like other structural elements a cantilever can be formed as a beam plate truss or slab.

Various numbering systems are used to facilitate the location of specific wing frames fuselage bulkheads or any other structural members on an aircraft. Aircraft fuselages consist of thin sheets of material stiffened by large numbers of longitudinal stringers together with transverse frames. The list of aircraft accidents and incidents caused by structural failures summarizes notable accidents and incidents such as the 1933 united airlines chesterton crash due to a bombing and a 1964 b 52 test that landed after the vertical stabilizer broke off. Structures systems and methods provide a load bearing aircraft flooring within an aircraft s fuselage.

A structure built on the forecastle of a ship intended to divert water away from the forward superstructure or gun mounts.