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mechanical advantage |
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mechanical advantage: see machine machine, arrangement of moving and stationary mechanical parts used to perform some useful work or to provide transportation. From a historical perspective, many of the first machines were the result of human efforts to improve war-making capabilities; the term ..... Click the link for more information. . mechanical advantageForce-amplifying effectiveness of a simple machine (lever, wedge, wheel and axle, pulley, or screw). The theoretical mechanical advantage of a system is the ratio of the force that performs the useful work to the force applied, assuming there is no friction in the system. In practice, the actual mechanical advantage will be less than the theoretical value by an amount determined by the amount of friction. mechanical advantage [mi′kan·ə·kəl əd′van·tij] (mechanical engineering) The ratio of the force produced by a machine such as a lever or pulley to the force applied to it. Also known as force ratio. Mechanical advantage Ratio of the force exerted by a machine (the output) to the force exerted on the machine, usually by an operator (the input). The term is useful in discussing a simple machine, where it becomes a figure of merit. It is not particularly useful, however, when applied to more complicated machines, where other considerations become more important than a simple ratio of forces. See Efficiency, Simple machine How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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| Chapter 7, "Games and Explorations III: Monkeying Around with the Voice," is about a position or posture referred to as the "monkey" in which all the parts are in dynamic balance, thus being at a mechanical advantage to the singer. I feel they are of particular relevance to triathletes, who--through their movement in water, with the mechanical advantage of a bike, and finally on land--run the gamut of vigorous exercise. While it is impossible to ideally match everyone's exact points of mechanical advantage and disadvantage along their specific strength curve, the slight variance in resistance usually provides the lifter with a more evenly distributed load throughout the exercise's range of motion. |
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