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英语翻译Planar motion and planar linkages If all points in a lin

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英语翻译
Planar motion and planar linkages
If all points in a linkage move in parallel planes.The System undergoes planar motion and the linkage may be described as a planar linkage.If we examine the linkage made up of the crank.Connecting rod,and piston in a piston engine,we see that it is a planar linkage,Most of the mechanisms in common use may be treated as planar linkages.
Spatial motion and spatial linkages
The more general case in which motion cannot be described as taking place in parallel planes is called spatial motion,and the linkage may be described as a spatial or three-dimensional (3d) linkage.
Inversion
The absolute motion of a linkage depends on which of the links is fixed,that is,which link is selected as the frame.If two otherwise equivalent linkages have different fixed link,then each is an inversion of the other.Relative motion will be the same in both linkages.
Planar motion and planar linkages
平面运动及平面连杆机构
If all points in a linkage move in parallel planes. The System undergoes planar motion and the linkage may be described as a planar linkage. If we examine the linkage made up of the crank. Connecting rod, and piston in a piston engine,we see that it is a planar linkage,Most of the mechanisms in common use may be treated as planar linkages.
如果连杆机构内所有的点都在平行平面内运动,那么这个系统或连杆机构就称为平面连杆机构.分析活塞发动机的曲柄、连杆及活塞,会发现它是个平面连杆机构.大多数常用机构都可以视为平面连杆机构.
Spatial motion and spatial linkages
空间运动和空间连杆机构
The more general case in which motion cannot be described as taking place in parallel planes is called spatial motion, and the linkage may be described as a spatial or three-dimensional (3d) linkage.
大多数机构上的点的运动不能描述为在平行平面内的运动,这种机构称为空间连杆机构或三维连杆机构.
Inversion
倒置
The absolute motion of a linkage depends on which of the links is fixed, that is, which link is selected as the frame. If two otherwise equivalent linkages have different fixed link, then each is an inversion of the other. Relative motion will be the same in both linkages.
连杆机构的绝对运动取决于哪个连杆是固定的,即把哪个连杆视为机架.如果两个等效连杆机构的固定连杆不同,那么它们互为倒置机构.但这两个连杆机构的相对运动是相同的.