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Types of mechanical forces

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A force exerted on a body can cause a change in either the shape or the motion of the body.The unit of force in SI system is the Newton(N) and CGS system is dyne.No solid body is perfectly rigid and when force are applied to it,changes in dimension occur.such changes are not always perceptible to the human eye since they are negligible. For the example,The span of a bridge will sag under the weight of a vehicle and a spanner will bend slightly when tightening a nut. It is also important for civil engineers and designers to appreciate the effects of forces on materials.Together with their mechanical properties of the materials. There three main types of mechanical forces that can act on a body.They are 1)Tensile force 2) compressive force and 3) shear force
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Hydraulic machines

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Hydraulic Machines Points : Hydraulic Machines The hydraulic machines, transmitted forces from point to point through a liquid; Most hydraulic machines use some sort of incompressible fluid, a fluid that is at its maximum density. Oil is the most commonly used in compressible fluid for hydraulic machines. In a simple hydraulic system, when a piston pushes down on the oil, the oil transmits all of the original force to another piston, which is driven up. A hydraulic pump creates the pressure that moves the pistons.

There are number of machines working on the principle of hydrostatics and hydraulics, but the following are in common use:
(i) Hydraulic press
(ii) Hydraulic accumulator
(iii) Hydraulic intensifier
(iv) Hydraulic crane.
(v) Hydraulic lift

Comments

  1. Unknown5 October 2017 at 06:26

    In the hydraulic machines category, the broaching machines are known for their accuracy and superior finish. Broaching Machine is a highly innovative metal cutting process, wherein the metal is detached by successive actions of the cutting teeth number incorporated in the tool called Broach.

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