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A material's capability in absorbing vibrations. damping coefficient See resistance. damping constant See resistance.



Related Terms

COEFFICIENT

  1. A number indicating the amount of some change under certain specified conditions, often expressed as a ratio. For example, the coefficient of linear expansion of a substance is the ratio of its change in length to the original length for a unit change of temperature, from a standard. 2. A constant in an algebraic equation. 3. One of several parts which combine to make a whole, as the maximum deviation produced by each of several causes.

CB

Block coefficient - a measure of the fullness of the form of the ship and is the ratio of the volume of displacement to a given water-line, and the volume of the circumscribing solid of constant rectangular cross-section having the same length, breadth and draught as the ship. CB= (L x B x T) The LPP is normally used in calculating the value of CB which varies with the type of ship. Fast ships Ordinary ships Slow ships 0.50-0.65 (fine form) 0.65-0.75 (moderate form) 0.75-0.85 (full form)

COEFFICIENT OF CUBICAL EXPANSION

The increment in volume of a unit volume of solid, liquid, or gas for a rise of temperature of 1 at constant pressure. Also known as coefficient of expansion; coefficient of thermal expansion; coefficient of volumetric expansion; expansion coefficient; expansivity.

COEFFICIENT OF EXPANSION

A number indicating the degree of expansion or contraction of a substance. The coefficient of expansion is not constant and varies with changes in temperature. For linear expansion it is expressed as the change in length of one unit of length of a substance having one degree rise in temperature.

MONOHEDRON

From the Greek word hedron (a geometrical figure having any number of planes). The theoretical ideal shape for planing over the water surface is one of constant (mono) section. Thus monohedron describes a hull that has a running surface of constant section; in practice the sections may not be exactly the same.

D DAMPENER

A device for damping spring oscillations after abrupt removal or application of a load.

S.U.S.

Saybolt Universal Second. Unit of oils viscosity. The time required for a fixed volume of oil to flow through a tube of a definite diameter at constant temperature.

METERING SCREW

An extrusion-type screw feeder or conveyor section used to feed pulverized or doughy material at a constant rate.

ISOBARIC PROCESS

A thermodynamic process of a gas in which the heat transfer to or from the gaseous system causes a volume change at constant pressure.

NEWTONIAN REFERENCE FRAME

One of a set of reference frames with constant relative velocity and within which Newton's laws hold; the frames have a common time, and coordinates are related by the Galilean transformation rule.

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