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mechanical efficiency |
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efficiencyor mechanical efficiencyIn mechanics, the measure of the effectiveness with which a system performs. It is stated as the ratio of a system's work output to its work input. The efficiency of a real system is always less than 1 because of friction between moving parts. A machine with an efficiency of 0.8 returns 80% of the work input as work output; the remaining 20% is used to overcome friction. In a theoretically frictionless, or ideal, machine, the work input and work output are equal, and the efficiency would be 1, or 100%. mechanical efficiency [mi′kan·ə·kəl i′fish·ən·sē] (mechanical engineering) In an engine, the ratio of brake horsepower to indicated horsepower. Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content. |
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