friction

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Related to Coulomb friction: Coulomb force, Coulomb energy, Viscous friction

friction

 [frik´shun]
the act of rubbing.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

fric·tion

(frik'shŭn),
1. The act of rubbing the surface of an object against that of another.
2. The force required for relative motion of two bodies that are in contact.
[L. frictio, fr. frico, to rub]
Farlex Partner Medical Dictionary © Farlex 2012

friction

A soft tissue massage technique, which entails the use of small circular pressure strokes from the fingertips, thumb pads and palms, with the intent of mobilising stiff joints and enhancing the circulation of blood to tendons and ligaments.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.

fric·tion

(frik'shŭn)
1. The act of rubbing the surface of an object against that of another; especially rubbing the limbs of the body to aid the circulation.
2. The force required for relative motion of two bodies that are in contact.
3. A group of movements in massage intended to move superficial layers over deeper structures, to reach deeper tissues, or to create heat. Includes static, cross-fiber, with-fiber, and circular frictions.
[L. frictio, fr. frico, to rub]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

fric·tion

(frik'shŭn)
1. The act of rubbing the surface of an object against that of another; especially rubbing the limbs of the body to aid the circulation.
2. The force required for relative motion of two bodies that are in contact.
[L. frictio, fr. frico, to rub]
Medical Dictionary for the Dental Professions © Farlex 2012
References in periodicals archive ?
In addition, studies indicate that the conclusions of the theoretical considerations presented in section 3 are also valid for the discrete cascade control system of servo-drive with feed drive system model which takes into account the Coulomb friction (Fig.
Number Parameter/unit Value 1 Coulomb friction coefficient 0.21 2 Static friction coefficient 0.25 3 Friction Stiffness coefficient/(N/mm) 50 4 Friction Damping coefficient/(N/(mm/s)) 0.316 5 Stribeck velocity/([micro]m/s) 190 6 Length of drill pipe/m 10 7 Outer diameter of drill pipe/m 0.127 8 Inner diameter of drill pipe/m 0.1086 9 Wellbore diameter/m 0.2156 10 Dynamic shear/Pa 15 11 Viscosity/Pa x s 0.03 12 Density of drill pipe/(kg/[m.sup.3]) 7850 13 Density of drill mud/(kg/[m.sup.3]) 2200 14 Volume rate/(L/s) 30
Almost all recent studies used the coulomb friction model to describe partial slip condition between the sheet and polymer.
* A very brief period, dt, during which Coulomb friction changes from a static to dynamic friction condition, static friction prevails, When [t.sub.1] = dt, the threshold velocity is reached when static effects yield to dynamic effects, and friction drops.
A Coulomb friction model is assumed on both the flank and rake faces, and the friction constants on both faces of the tool are predicted.
A Coulomb friction model was used with a coefficient of friction [Mu] = 0.25 between the mat and the can and [Mu] = 0.4 between the ceramic substrate and the mat.
The slip and separate only model was adopted to simulate the pile-soil interaction; the interface element of the model was characterized by the Coulomb friction model in the shear direction and by tensile strength in the normal direction.
Considering the contraction of the pile-soil interface, the contact element adopted the elastoplastic Coulomb friction model, and the contact surface friction coefficient remained unchanged [7].
The TDE error is mainly caused by the finite time delay L under nonlinearities such as Coulomb friction.
As a rule, the electric servo actuators of MM are nonlinear essentially with such types of no differentiable nonlinearities as saturation, Coulomb friction, backlash, and hysteresis [12].
Hopf bifurcation occurs as the effect of nonsmooth Coulomb friction [18].
where, v is the relative velocity between the two surfaces, [F.sub.c] is the coulomb friction level, [F.sub.s] is the level of the stiction force, [v.sub.s] is the Stribeck velocity, [[sigma].sub.0] is the stiffness, [[sigma].sub.1] is the viscous damping coefficient, and [[sigma].sub.2] is the viscous friction coefficient.