inertia ellipsoid

inertia ellipsoid

[i′nər·shə i′lip‚sȯid]
(mechanics)
An ellipsoid used in describing the motion of a rigid body; it is fixed in the body, and the distance from its center to its surface in any direction is inversely proportional to the square root of the moment of inertia about the corresponding axis. Also known as Poinsot ellipsoid.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
The unit sphere in [F.sub.n] (E) is termed the inertia ellipsoid and denoted by
The inertia ellipsoid S is defined by the equation [mathematical expression not reproducible], or equivalently [mathematical expression not reproducible] where [mathematical expression not reproducible].
We can arrange all the spaces inertia ellipsoids and the corresponding projective quotients as in diagram (2.7).