1506. Aerodynamic Effects in Mass Properties Determination


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R L Marshner: 1506. Aerodynamic Effects in Mass Properties Determination. 1983.



The atmosphere has an effect on the measurement of mass, moment-of-inertia and product-of-inertia
properties of a test object.
The effect on mass or weight measurement is due simply to air buoyancy, while the effect o moment-of-inertia and product-of-inertia measurements is more complex. Air drag and/or lift are certainly
one factor: Entrapped air, stimulated air and turbulence are other factors.
Many dynamic balance machines deduce static moments (for determination) from dynamic data. Thus,
atmospheric influence can also be experienced in the determination of CG location.


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