Quasi-Elastic Force

The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Quasi-Elastic Force

 

a force F directed toward a center O whose magnitude is proportional to the distance r from the center O to the point where the force is applied; numerically F = cr, where c is a constant.

A body under the influence of a quasi-elastic force has a potential energy P equal to 1/2 cr2. The name “quasi-elastic force” is derived from the analogous property of forces produced by small deformations of elastic bodies (elastic forces). For a material point under the influence of a quasi-elastic force the center O is a position of stable equilibrium. A point removed from this position will exhibit linear harmonic oscillations or describe an ellipse (in particular, a circle) about the point O.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
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