All Questions
Tagged with aerospace-engineering structures
7
questions
0
votes
0
answers
25
views
I'm Missing Something on Problem 3 in Section A5.4 of Bruhn's Analysis and Design of Airplane Structures
I've been working through the 1943 edition of Bruhn's Analysis and Design of Airplane Structures. I found an archive.org pdf version of the 1948 edition that includes answers to select problems, as ...
0
votes
1
answer
67
views
Does the weight of a pilot exponentially affect the necessary weight of human-powered aircraft?
The MIT Daedalus, a human-powered craft, weighed about 31 kg. This was significantly lighter than its pilot during its record setting trip, though I can't confirm the pilot's exact weight. Still, this ...
- 3
-1
votes
1
answer
477
views
Flexure Deflection - Both ends fixed (one translation free)
I have a flexure problem. One of its ends is fixed to a frame (say F1) which is stationary (no rotation & no translation) and the other end is also fixed to another frame (say F2) which can move ...
1
vote
0
answers
37
views
What does 'Analysis Model Value' in NASTRAN optimization mean?
I am new to MSC NASTRAN and PATRAN.
I am running a simulation on composite laminate optimization. While creating the design variables for the study, I noticed that there is a parameter called '...
- 11
1
vote
0
answers
564
views
Beam element stiffness matrix for variable area cross section with mass and shear center not coinciding
I would like to find the full (12 by 12) Timoshenko beam element stiffness matrix for a variable cross section with mass center axis and elastic center does not coincide. I have the full stiffness ...
- 111
3
votes
1
answer
2k
views
Torsional Constant of Thin-Walled Multi-Cell Structures
I'm asked to analytically calculate the composite torsional constant of the following structure.
No other information is given, such as the applied torque.
I know how to calculate the torsional ...
- 357
5
votes
1
answer
3k
views
Logic behind location of shear centre
When we apply a vertical shear force Sy and the structure is symmetric about x axis, then why is it logical to have the position of shear center at the location of intersection of line of action of ...
- 247