Path: Airships/Modeling
% Compute the added mass/inertia factors for an airship hull.
A double ellipsoid geometry is assumed.
For a single ellipsoid, a1 = a2.
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Form:
[k1, k2, kp] = AirshipInertiaFactors( a1, a2, b );
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Inputs
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a1 (1) Semi-major axis of front ellipsoid [m]
a2 (1) Semi-major axis of rear ellipsoid [m]
b (1) Semi-minor axis of each ellipsoid [m]
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Outputs
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k1 (1) Coefficient of added mass, axial
k2 (1) Coefficient of added mass, normal
kp (1) Coefficient of added inertia, rotational
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Reference: "Inertia Factors of Ellipsoids for use in Airship Design",
NACA Report No. 210 by L.B. Tuckerman.
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Copyright (c) 2003 Princeton Satellite Systems, Inc.
All rights reserved.
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