Friction, Mechanical Engineering

Assignment Help:

Friction:

When a body moves or tends to move over the other body, a force opposing the motion develops at the contact surfaces. This force that opposes the movement or the tendency of movement is called as frictional force or simply friction. Frictional force acts parallel to the surface of contact always, opposite to the moving direction and is dependent on the roughness of surface.

A frictional force develops when there is relative motion between body and surface on application of some external force.

A frictional force is dependent upon the coefficient of friction between the surface and the body which can be minimized up to very low value equal to zero (theoretically) by proper polishing the surface.

 


Related Discussions:- Friction

Explain concept of tapping of radial drilling machine, Explain concept of T...

Explain concept of Tapping of radial drilling machine Tapping:- Tapping is the method by which internal threads are produced. It is performed either by hand or by machine.

Meaning, What different of blow hole and pin hole

What different of blow hole and pin hole

Angle of twist is zero on the shaft, Angle of twist is zero on the shaft: ...

Angle of twist is zero on the shaft: A shaft 10 m long and 100 mm diameter during its length is fixed at the ends and is subjected to two opposite torques of 8 kN-m and 10 kN-

Area Moment of Inertia, Are a Moment of Inertia Moment of force about ...

Are a Moment of Inertia Moment of force about a point is product of the force ( F ) and perpendicular distance ( d ) between point and line of action of that is F.d. This mome

Thermal stress, how did the formula derived smax = Ed1 a ?T/d 2

how did the formula derived smax = Ed1 a ?T/d 2

Forced air cooling - type of cooling system, Forced Air Cooling: A fa...

Forced Air Cooling: A fan makes a difference between natural air cooling and forced air-cooling. The fan supplies the required air to carry away heat from the engine cylinder

Equipment for resistance welding-single phase vs three phase, EQUIPMENT FOR...

EQUIPMENT FOR RESISTANCE WELDING-Single phase vs three phase The resistance welding machines can be connected either across 440 V mains (across two lines) or three phase mains.

Evaluate the velocity ratio, (a) A geometrically similar model of spillway ...

(a) A geometrically similar model of spillway is to be laid to a scale of 1 in 50. Evaluate the velocity ratio, discharge ratio and acceleration ratio. (b) If model prototype ra

Stress, how do i determine the operational factor of safety in tension

how do i determine the operational factor of safety in tension

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd