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Related to Metacenter: metacentre, transverse metacenter


(fluid mechanics)
The intersection of a vertical line through the center of buoyancy of a floating body, slightly displaced from its equilibrium position, with a line connecting the center of gravity and the equilibrium center of buoyancy; the floating body is stable if the metacenter lies above the center of gravity.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.



the point whose position determines the stability (stability of equilibrium) of a floating body. A floating body in equilibrium is acted upon by a buoyancy force A whose line of action passes through the center of buoyancy CB (the center of gravity of the mass of liquid in the immersed part of the body) and by the force of gravity P, which is applied at the center of gravity (CG) of the body (see Figure 1). In the case of greatest practical importance, when the floating body has a longitudinal plane of symmetry, the point of intersection of this plane with the line of action of the buoyancy force is called the metacenter (A/); When the body is inclined, the position of the metacenter changes. A floating body will be stable if the lowest metacenter (which sometimes is the only metacenter) of the body lies above the center of gravity of the body.

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Figure 1. Position of the metacenter M for stable (a) and unstable (b) equilibrium of a floating body


Iablonskii, V. S. Kratkii kurs tekhnicheskoi gidromekhaniki. Moscow, 1961. Chapter 4.
The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
MetaCenter is used as the reference point for that information.
MetaCenter is also used by other customers, such as Allmerica Financial (, to store other types of metadata, such as information about who owns a database, what server is hosting that schema and how business definitions relate to data definitions stored in different systems.
Both MetaTrieve and MetaCenter offer ways of adding value through effective use of metadata to locate enterprise data, although their strategies are different.
Nonetheless, he adds, "It's important to realize that the MetaCenter is not a new institution.
MetaCenter proponents envision these initial stages evolving into an integrated system of software and computers that eventually would look to the user like a single, extremely powerful, multitalented computer.
"I don't think we're declaring the MetaCenter solves all our problems," Kalos says.