Questions tagged [aircraft-structures]
For structural engineering questions about airframes and the mechanical structures aboard aircraft
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What drives the mechanical challenges which make trailing-edge flaps an (almost) ubiquitous solution vs leading-edge flaps?
(Apologies for the mouthful of a title.)
I was thinking about canard aircraft and how trailing edge flaps (TEF) are actually counterproductive for them. Leading edge flaps (LEF) could theoretically ...
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How to calculate wing deflection?
I can calculate deflection for a single beam, but I do not know how to calculate deflection for the whole wing section. I do not know how to calculate deflection for the two spars simultaneously.
I am ...
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Structure that holds the twin-engine on an aircraft
What is the name of that big structure (in red) that holds the engine?
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How do the landing gear support so much mass?
The first thing that one notices after seeing an aircraft, is that it's quite a heavy flying machine. And so, one would expect monumental tires on these vehicles, yet they don't exist.
How is it that ...
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fuselage structure
How can a mechanic measure the distance of underlying structural elements of fuselage skin (e.g. stringers, internal doublers around door cutouts) from a specific cracked fastener hole in the fuselage ...
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Why aren't aircraft built with carbon fiber tubes?
Though carbon fiber is more expensive than aluminum as a base material, one of its biggest costs is creating the final composite parts made of carbon fiber (molding, layering, resin, curing, baking, ...
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How can tailplane force imbalance twist a tailcone off?
http://www.rvs.uni-bielefeld.de/publications/Incidents/DOCS/ComAndRep/LaudaAir/LaudaRPT.html#2.2.3
2.2.2 In-Flight Breakup Sequence
The analysis of the major structural damage showed that the ...
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Is there a common name for ailerons, elevators and rudder?
Since ailerons, elevators and rudder are all designed in a similar way, that is, they are attached to a fixed structure from where they move in both direction on that particular axis.
For example on a ...
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Material Shape Parameter (n)
In order to calculate the plasticity reduction factor given in Michael C.Y. Niu's book a constant (n) is being multiplied which is called the material shape parameter, does anyone know the meaning of ...
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Is there a clear cut method for cutout on structural members?
I have been looking into fuselage cutouts especially, window cutouts on the skin panel for a school project. Reading Bruhn and Niu Books, both state that there are no clear cut methods for fuselage ...
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How is a turboprop engine mounted to the wing?
For a given turboprop plane such as the ATR-72, there doesn't seem to be a pylon as on turbofan driven planes. This question: How are engines mounted onto wings? has answers that detail how a pylon is ...
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Bulkhead (Forward and Rear) positions in civil aircraft
I am looking for general positions of forward and rear bulkheads in the civil aviation aircraft. Like, at what percentage of fuselage length from fuselage nose or any other reference point?
Any ...
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What is the material of the wing spar on the Mitsubishi MU-2?
I read that the spar on Twin Commanders are made of steel. Is this also the case for the MU-2?
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Anyone knows where i could find the McMaster, H. C., “FAR 23 LOADS”, Aeroscience Software, 2.02 Edition?
I am currently conducting research on wing lift distributions and came across the existence of a software tool called "FAR 23 LOADS," developed by McMaster, H. C. (Aeroscience Software, 2.02 ...
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Should composite ribs be made in the same way as metal ones?
A lot of metal ribs are made from bending or stamping sheet metals. So we see shapes which have lots of discontinuities in the flange area for ease in manufacturing. My question is - is it the most ...
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