How does the opening / closing mechanism work on a passenger aircraft door? |
Request for Question Clarification by
aht-ga
on
11 Oct 2004 00:17 PDT
dev2106-ga:
As the comment below from guzzi-ga suggests, there are indeed many
different types of aircraft doors, and for each a different way of
operating. Can you narrow the scope of your question down to a
particular model of aircraft, or perhaps explain your need for
information in greater detail so that it is possible to point you in
the right direction?
Thanks,
aht-ga
Google Answers Researcher
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Clarification of Question by
dev2106-ga
on
11 Oct 2004 03:20 PDT
Iam an architectural student and believe that the mechanism I have
seen on passenger aircraft entrance doors would resolve a design
problem I have. From what I can tell the door is flush with the
exterior in the closed position and somehow when opened, moves
perpendicular to the fusilage and then slides to the side on a type of
roller or hinge.
Hope this is a little clearer!
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Request for Question Clarification by
aht-ga
on
11 Oct 2004 13:28 PDT
So to make sure I understand you right... you're looking for
information on how the hinging system on the passenger access door of,
say a Boeing 737, works, in that said door starts out being flush with
the outside of the fuselage, then can be opened through a complex,
three-dimension path supported by cantilevered/articulated hinges such
that the door can be swung outwards to lie parallel to the outside
surface of the aircraft.
Other points to note, though, are that this complex movement is made
necessary by the fact that the door is designed to have a tapered fit
into the doorway from the inside out, to prevent the door from being
"blown out" by the cabin pressure. So, the only way to open such a
door to to first retract it into the airplane, then tilt and turn the
door so that it can be pushed outside through the tapered opening,
then swung to the side so that it is out of the way.
Is this the type of door you are thinking of?
Regards,
aht-ga
Google Answers Researcher
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Request for Question Clarification by
aht-ga
on
11 Oct 2004 18:08 PDT
By the way, here's a picture of the door on a Boeing 777 where you can
see some of the complex door mechanism:
http://www.airliners.net/open.file/613164/L/
This may not be exactly what you're looking for, the one on the 737
and on some Airbus designs brings the door back in towards the
fuselage.
aht-ga
Google Answers Researcher
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Clarification of Question by
dev2106-ga
on
12 Oct 2004 01:27 PDT
The assumption in your first paragraph is correct. The complexity due
to tapering and wind pressure is not really necessary for because a
building is unlikely to require this degree of detailing.
It was generally to see if the 3 dimensional path opening and
principle could be used to get over my problem of doors in a curved
plane. (not areoplane).
I don't necessarily need all the details, but I would need to show
that I have researched a mechanism which could be simplfied / modified
to suit my design details.
Thanks.
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