Q: Can a hydraulic piston be used to increase and decrease force?

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It is false because the pressure increase and transmitted on the large piston

You get the force exerted by a hydraulic piston by taking the pressure times the surface area of the piston.

In a hydraulic system, the force on the applying piston is multiplied by the reciprocal of the area of the piston, to find pressure which is multiplied by the piston area.

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Double the force applied by that piston and half the speed that it moves.

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It is false because the pressure increase and transmitted on the large piston

You reduce the diameter of the small piston. Or reduce the diameter and increase the travel of the small piston if you want the large piston to maintain it's previous range of travel.

http://www.engineeringtoolbox.com/hydraulic-force-calculator-d_1369.html

You get the force exerted by a hydraulic piston by taking the pressure times the surface area of the piston.

A hydraulic system multiplies force by applying the force to a small surface are. The increase in pressure is then transmitted to another part of the confined fluid, which pushes on a larger surface area

Suppose the smaller piston was 1 square cm and the large piston was 7 square cm. If you pushed on the small piston, the force would be multiplied 7 times on the large piston. The Hydraulic System is a system that uses liquids to transmit pressure and multiply force in a confined fluid. Hope this helped. (:

In a hydraulic system, the force on the applying piston is multiplied by the reciprocal of the area of the piston, to find pressure which is multiplied by the piston area.

Hydraulic force, transmitted by the brake fluid.

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The most common actuator is a hydraulic actuator or an electro-servo actuator. These are linear actuators that move a piston rod to a set stroke and force. It is used to push and pull at a fixed length(stroke) and force. Used in conjuction with rods and cranks, the actuator can be used to move controls through variable geometry such as arcs. The Hydraulic Actuator has a piston internal to the housing. The hydraulic pressure is ported on one end and forces the piston to move to the opposite end, which pushes the rod to extend it. Reversing the hydraulic pressure(or applying it at the other side of the piston) will cause the rod to stroke back to original position. The force that is available is equal to the hydraulic pressure times the area of the piston.

Double the force applied by that piston and half the speed that it moves.

They will increase.