friction ratio

friction ratio
фрикция

English-Russian dictionary of chemistre. 2014.

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  • Friction motors — are simple mechanism to propel toy cars. The motor consists of a large flywheel which is connected to the drive wheels of the car via a very low gear ratio. The flywheel s axis is perpendicular to the direction the car is facing. When the car is… …   Wikipedia

  • Friction — For other uses, see Friction (disambiguation). Classical mechanics …   Wikipedia

  • friction — frictionless, adj. frictionlessly, adv. /frik sheuhn/, n. 1. surface resistance to relative motion, as of a body sliding or rolling. 2. the rubbing of the surface of one body against that of another. 3. dissension or conflict between persons,… …   Universalium

  • Dref Friction Spinning — Friction Spinning or Dref Spinning is a textile technology that allows very heavy count yarns and technical core wrapped yarns to be manufactured. These are most commonly used in mop yarns, flame retardants and high tech fancy yarns such as… …   Wikipedia

  • Perrin friction factors — In hydrodynamics, the Perrin friction factors are multiplicative adjustments to the translational and rotational friction of a rigid spheroid, relative to the corresponding frictions in spheres of the same volume. These friction factors were… …   Wikipedia

  • Coefficient of friction — The coefficient of friction is a dimensionless quantity symbolized by the Greek letter μ and is used to approximate the force of friction. Friction can be viewed, again as an approximation, as being of two primary types, static or kinetic . The… …   Wikipedia

  • Stroke ratio — In a reciprocating piston engine, the stroke ratio, defined by either bore/stroke ratio or stroke/bore ratio, is a term which is used to describe the ratio between the diameter of the cylinder bore and the length of the piston stroke within its… …   Wikipedia

  • Dynamical friction — is a term in astrophysics related to loss of momentum and kinetic energy of moving bodies through a gravitational interaction with surrounding matter in space. It is sometimes referred to as gravitational drag, and was first discussed in detail… …   Wikipedia

  • Aspect ratio (wing) — In aerodynamics, the aspect ratio of a wing is defined as the square of the wing span divided by the wing area.:AR = {b^2 over S}where: b is the wing span, and: S is the wing area.Informally, a high aspect ratio indicates long, narrow wings,… …   Wikipedia

  • Damping ratio — Classical mechanics Newton s Second Law History of classical mechanics  …   Wikipedia

  • Fineness ratio — is a term used in aerospace engineering to describe the overall shape of a streamlined body. Specifically, it is the ratio of the length of a body to its maximum width; shapes that are short and fat have a low fineness ratio, those that are long… …   Wikipedia


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