Model: A03 Prismatic or Sliding Kinematic Pair
This model shows the surface constraint between two bodies that permits only relative axial sliding motion. Sliding motion takes place between pistons and cylinders in more than a billion internal combustion engines. Reuleaux called the kinematic constraint between the surfaces of two solids 'lower pairs' as illustrated in the 'A series of Voigt models. An early application of a sliding pair by the ancient engineers was the use of the inclined plane to move heavy stones as in the construction of the pyramids. Modern use of the prismatic or sliding joint can be found in hydraulic acuators used in construction machines and heavy lift robots.

Francis Moon 2001-00-00

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