Constuction of aircraft?

Question

could sombody in brief if posible explain to me what is ment by this as iam struggling with it.

"explain the construction methods used to form integral box sections of aircraft"

sorry abou the spelling.

thanks.

Answer 1

The question seems pretty vague to me, however this may help you answer it.  http://en.wikipedia.org/wiki/Monocoque

Answer 2

Actually most aircraft now are semi-moncoque.

monocoque simply means stressed skin (skin take structural loads). A beer can and egg are both examples of  pure monocoque structure. One of the problems of monocoque structures is that once broken they fail easily.  for example if you put press on the top and bottom of the egg it will take a fair bit of pressure to crack it. Once you hit it with a knife in the middle the egg's structure will fail easily.

That's why we have Semi - monocoque structure. This means that the skin is stressed to a degree but does not take all the loads. We have longerons, frames and stringers on our fuselage which take structural load. In our wings or any other large aerofoil surface such as out horizontal and vertical stabilizers we have ribs and spars and both aerofoils and the fuselage will have stringers where needed.

Answer 3

The two most common methods are space frame and semi-monocoque.  Space frame is used in most fabric covered airplanes, and consists of a welded framework of metal tubing similar to a truss bridge, which is then covered with fabric or metal.

The semi-monocoque is explained well above.  It is also called "stressed skin" construction, and consists of a shell of sheet metal enhanced with stiffening frames.  Most airliners are made that way.

It's a lot easier to explain with pictures and diagrams.  Try an internet search on "aircraft construction," and on "space frame" or "aircraft space frame," as well as "aircraft semi-monocoque."

Good luck