friction


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Related to friction: coefficient of friction

friction

 [frik´shun]
the act of rubbing.

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]

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.

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]

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]
References in periodicals archive ?
The friction characteristics of biodiesel-diesel blends were studied by using a four-ball wear testing machine according to ASTM D4172 standard.
where T is friction torque (kg x mm), W is the appliedload amount of 40 kg, and r (3.67 mm) is the distance from the center of the contact surfaces on the lower balls to the axis of the rotation [12].
Surface-to-surface contact exists between counterpart and specimen during friction process, and friction coefficient is set as 0.54 (0 wt% Zr[B.sub.2] particles) and 0.22 (5 wt% Zr[B.sub.2] particles) respectively according to our experimental results.
Figure 9 shows the distribution friction stress of pure CE resin on worn surface during friction process.
Wood samples with varying moisture contents were tested at different normal loads (10, 20, and 40 N) to reduce the test error, and friction pairs were formed between the different microtexture specimens and wood at different locations on the same piece of wood, as shown Figure 4b.
The coefficient of friction and wear of specimens was obtained by conducting experiments as specified in the TS 555 (1992) and TS 9076 standard (1991).
The friction coefficient reflects the mechanical friction between the drill string and borehole, the sediment and the tortuosity [11];
All the work done by the friction torque is converted into irreversible heat loss, which is the primary heat source of the synchronizer [13].
The effects of the surface texture of brake discs on friction behavior have become more and more significant.
In this study, a semi-empirical index is designed based on the stick slip phenomena to represent the noise propensity of brake friction material.
Such an emergency (friction) brake could be based on a fully enclosed friction pair which has to be able to operate at the extreme high temperatures generated during the emergency braking intervention.
Due to the roughness and hardness difference between the drill string and wellbore rock by surface contact, the general elastic bristle in the dynamic friction model should be the bristles on the wellbore, which, unlike these models, was assumed on the motion body plane contact.