| 单词 | centre of percussion |
| 释义 | > as lemmascentre of percussion centre of percussion n. the point on a pivoting object at which an obstacle to its motion would be struck with the maximum possible force; the point on a pivoting object at which an impact produces no reaction force at the pivot point. ΘΚΠ the world > matter > physics > mechanics > dynamics > [noun] > kinetics > point of greatest percussion in moving body centre of percussion1704 1704 C. Hayes Treat. Fluxions 282 (heading) To find the Center of Percussion of a Line, suspended by one Extremity, about which as a Center it is suppos'd to move. 1839 H. Moseley Illustr. Mech. v. 271 If the ball strike the mass against which it is fired at any other point than its centre of percussion, the blow will tend to tear away the axis. 1943 Pop. Sci. Monthly Oct. (Home & Workshop section) 503 A swinging bat is a compound pendulum, and its center of oscillation is also its center of percussion. This is the point of most effective drive, and the one which imparts the least jar. 2003 O. Shine Lang. Tennis 21 The most powerful spot in a racket's hitting area is the heart of the sweetspot, known as the centre of percussion. < as lemmas |
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