Mechanical Advantage

Mechanical advantage is a measure of the force amplification achieved by using a tool, mechanical device or machine system. Ideally, the device preserves the input power and simply trades off forces against movement to obtain a desired amplification in the output force. The model for this is the law of the lever. Machine components designed to manage forces and movement in this way are called mechanisms.

An ideal mechanism transmits power without adding to or subtracting from it. This means the ideal mechanism does not include a power source, and is frictionless and constructed from rigid bodies that do not deflect or wear. The performance of real systems is obtained from this ideal by using efficiency factors that take into account friction, deformation and wear.

Read more about Mechanical Advantage:  Law of The Lever, Speed Ratio, Gear Trains, Chain and Belt Drives, Block and Tackle, Efficiency

Other articles related to "mechanical advantage":

Leverage - Efficiency - Actual Mechanical Advantage
... The actual mechanical advantage (AMA) is the mechanical advantage of a real machine ... Actual mechanical advantage takes into consideration real world factors such as energy lost in friction ...
Multi-jackbolt Tensioner - Mechanical Advantage
... MJTs have a high mechanical advantage for tightening large nuts ... To calculate mechanical advantage over standard hex nuts, the following formula is used Where MA = overall mechanical advantage T = main thread torque Tj = jackbolt torque n = number of ...
Crane (machine) - Mechanical Principles - Lifting Capacity
... Cranes illustrate the use of one or more simple machines to create mechanical advantage ... ratio of the lengths of the longer arm and the shorter arm, and is called the mechanical advantage ... This number is the mechanical advantage ...
Screw (simple Machine) - Actual Mechanical Advantage and Efficiency
... When friction is included, the mechanical advantage is no longer equal to the distance ratio but also depends on the screw's efficiency ... the distance moved, so and and therefore or in terms of torque So the mechanical advantage of an actual screw is reduced from what it would be in an ideal, frictionless screw by the efficiency ...
Efficiency - Actual Mechanical Advantage
... The actual mechanical advantage (AMA) is the mechanical advantage of a real machine ... Actual mechanical advantage takes into consideration real world factors such as energy lost in friction ...

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