Aeroplane Mass Ratio - Gust Envelope
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Aeroplane Mass Ratio - Gust Envelope
Dear fellow PPRuNers,
Would someone be able to give me a leg up regarding the aeroplane mass ratio μ in CS 25.335 (d)(1) (see below)?
K_g = 0.88 μ / (5.3 + μ)
I fully understand that the gust load factor is based on a notional sharp-edged gust, and therefore needs correction for a more realistically shaped gust and load alleviation from the tailplane. Unfortunately, I can't get my head around the rationale behind μ, and the textbooks usually just mention K_g without further explanation.
Any hint would be greatly appreciated.
Would someone be able to give me a leg up regarding the aeroplane mass ratio μ in CS 25.335 (d)(1) (see below)?
K_g = 0.88 μ / (5.3 + μ)
I fully understand that the gust load factor is based on a notional sharp-edged gust, and therefore needs correction for a more realistically shaped gust and load alleviation from the tailplane. Unfortunately, I can't get my head around the rationale behind μ, and the textbooks usually just mention K_g without further explanation.
Any hint would be greatly appreciated.
Last edited by hvogt; 9th Apr 2021 at 04:48.
This may help https://apps.dtic.mil/dtic/tr/fulltext/u2/a380634.pdf
NACA TECHNICAL NOTE 1976 SUMMARY OF INFORMATION RELATING TO GUST LOADS ON AIRPLANES
NACA TECHNICAL NOTE 1976 SUMMARY OF INFORMATION RELATING TO GUST LOADS ON AIRPLANES
This may help https://apps.dtic.mil/dtic/tr/fulltext/u2/a380634.pdf
NACA TECHNICAL NOTE 1976 SUMMARY OF INFORMATION RELATING TO GUST LOADS ON AIRPLANES
NACA TECHNICAL NOTE 1976 SUMMARY OF INFORMATION RELATING TO GUST LOADS ON AIRPLANES
Saved on my phone for a future brain aneurysm.
Thread Starter
Join Date: Dec 2006
Location: Hamburg
Age: 46
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This may help https://apps.dtic.mil/dtic/tr/fulltext/u2/a380634.pdf
NACA TECHNICAL NOTE 1976 SUMMARY OF INFORMATION RELATING TO GUST LOADS ON AIRPLANES
NACA TECHNICAL NOTE 1976 SUMMARY OF INFORMATION RELATING TO GUST LOADS ON AIRPLANES