This is an assignment I have do to for my aircraft design class next tuesday.
The question goes like this:
The Fokker 100 was derived from the Fokker 27. Major modifications include:
1) New "glass cockpit"
2) Streched fuselage
3) Modified wing, without developping a new wingbox
4) New engines (RR Tay Mk 620)
Off course they needed the wing to generate more lift, and by keeping the same wingbox the wingspan had to increase and at the same time the wing aspect ratio increased as well, off course.
Now the question is as follows:
What are the effects of the increased aspect ratio on the wing structure and the wing aerodynamics for the Fokker 100 and eventually for any other wing?
I already figured out that increasing the aspect ratio reduces drag until a ratio of about 12 or 13. From there drag increases again.
Concerning the structure, the increased wingspan requires a stronger and there for heavier wing in order to prevent the wing from bending too much.
Could you please give me as much info and points of view on this matter? Our teacher is really a smart guy and not satisfied with a short anwer. He really wants us to get really deep into this.
Many thanks in advance to you all!