| 释义 |
dead center
dead centern. The point at the end of each stroke of a moving crank and connecting rod at which the two lie in the same straight line and the turning force applied by the connecting rod is zero. Also called dead point.Thesaurus| Noun | 1. |  dead center - the position of a crank when it is in line with the connecting rod and not exerting torquedead centrespatial relation, position - the spatial property of a place where or way in which something is situated; "the position of the hands on the clock"; "he specified the spatial relations of every piece of furniture on the stage" |
dead center
dead centerExactly in the middle of something. If you're going to hang that painting, make sure you put it dead center—otherwise, it will just look weird. I want you dead center in this picture, so move a little to the left.See also: center, deaddead centerat the exact center of something. The arrow hit the target dead center. When you put the flowers on the table, put them dead center.See also: center, deadDead Center
dead center[¦ded ′sen·tər] (mechanical engineering) A position of a crank in which the turning force applied to it by the connecting rod is zero; occurs when the crank and rod are in a straight line. A support for the work on a lathe which does not turn with the work. Dead Center the extreme position of a piston in the cylinder of a piston engine, at which the motion of the piston changes direction. The piston position at the greatest distance from the crank is known as top dead center, and the position closest to the crank is known as bottom dead center. When the piston is at dead center, its velocity is zero, and the forces acting upon it do not generate an impulse (momentum) for displacement of the crank. In theoretical mechanics the positions of the piston at dead center are sometimes called limit positions (points). FinancialSeedb/dcdead center
Related to dead center: Top dead centerSynonyms for dead centernoun the position of a crank when it is in line with the connecting rod and not exerting torqueSynonymsRelated Words |