UNSW - Aerospace Structures - Thin walled Structure Idealisation

[@obione6757]

awesome lecture, this from Monash student (MAE4411 Aircraft structures II). greatly appreciate this as it creates intuition for the equations.

[@tenistepic]

Any idea on how to get the moment arm and distance in the exercise of 1:48:00, I followed Megson's book but it only uses some values that I don't know where he got them, as far as I understand the moment arm has to perpendicular to the reference point, but in megsons it has something different.

[@jibeneyto91]

Regarding Boom area calculation (up and until 34:50), shouldn't each boom account for "half" of each adjacent panel? Otherwise you'll globally account for each panel twice, right?

[@1Wanoooo]

I thought of that too

[@ahmedanis9450]

Same thoughts here.. @Aerospace Structures @ UNSW any answer?

[@sonasidhu]

He used Force and Moment balance to get boom area

[@gortrun]

The teacher is pulling these numbers right from Megson (pgs 560 and 599). If you examine the fuselage analysis method, the author adds area due to both adjacent panels to each boom. This makes sense, because you need two forces to be able to counteract the moments in the panel. Think of it as half the area of the boom is needed to counteract the moments on the panel to the left, and half is needed to counteract the moments to the right (until you reach the end of the beam).

[@AerospaceStructures]

Yes, you are correct in general. The idealised case should have the same area as the original, so each boom should have half the area of the skin from each panel. In the specific case from this lecture (i.e. when pure bending moments are applied to the section), you can make a slightly better approximation to the area distribution using the formulae provided.

[@1Wanoooo]

Thank you for uploading this

[@naveenkumar-sn8oj]

Please upload fuslage frames and wing ribs from megson

[@biryanicool5383]

can you give the link of slide of this video?

[@Arkturium]

Cheers from usyd

[@georgen9755]

@UNSW

[@gildorgjunior]

Such a sluggish lecture I almost killed myself halfway through.

[@georgen9755]

use Russian interpreters for rapid lecture