Stable equilibrium


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(Mech.) the kind of equilibrium of a body so placed that if disturbed it returns to its former position, as in the case when the center of gravity is below the point or axis of support; - opposed to unstable equilibrium, in which the body if disturbed does not tend to return to its former position, but to move farther away from it, as in the case of a body supported at a point below the center of gravity. Cf. Neutral equilibrium, under Neutral.

See also: Stable

References in classic literature ?
Then there were the pebbles and stones that turned under him when he trod upon them; and from them he came to know that the things not alive were not all in the same state of stable equilibrium as was his cave--also, that small things not alive were more liable than large things to fall down or turn over.
Only countries with a stable equilibrium between its centrifugal and centripetal forces stay afloat in comity of nations.
This scenario represents not a stable equilibrium, but an unstable disequilibrium, vulnerable to economic, financial, and geopolitical shocks.
Generally, behaviors of a nonlinear dynamic system may change with varying parameters; a stable equilibrium can become unstable and a periodic oscillation may occur or a new equilibrium may appear making the previous equilibrium unstable once the parameters vary.
We believe that milk prices move in cycles and will eventually return to a stable equilibrium.
In addition, the lateral stability analyses in [20-22] indicated that the stable equilibrium point disappears when the vehicle speed and steering angle increase over a certain limit.
In contrast, a system is in a state of 'unstable' equilibrium when it will not return into the original location when being displaced but instead passes into a new state of stable equilibrium such as an individual falling off a freely standing ladder (Hay, 1985).
It finally gave us"a stable equilibrium of forests, savannahs, coral reefs, grasslands, fish, mammals, bacteria, air quality, ice cover, temperature, fresh water availability and productive soils.
s ostensible inability to have positive real rates over the next decade, a Fed policymaker said "this outlook is unrealistic as it wouldn't provide a stable equilibrium.
In a general equilibrium condition we can see the standard IS-LM model is stable, and directional arrows show that we are in the presence of an asymptotically stable equilibrium.
max] there are two values for central density but only the lower value must be considered to describe stable neutron stars; the maximum mass is thus considered the maximum possible mass for a stable equilibrium configuration of neutron stars with a Fermi equation of state as obtained by Oppenheimer and Volkoff.