08-16-2017, 09:45 PM
A mechanism is a simplified model, usually in the form of a line diagram, which is used to reproduce the movement occurring in a machine. The purpose of this reproduction is to allow the nature of the machine. The purpose of this reproduction is to allow the nature of the movement to be investigated without the imposition of the various solid bodies forming the machine elements. The various parts of the mechanism are called links or elements. An arbitrary set of couplings forming a Closed which is capable of relative movement, and which can be made into a rigid structure by the addition of a single bond, is known as a kinematic chain. To form a mechanism from a kinematic chain you must fix one of the links. However, since any of the links can be fixed, it follows that there are as many mechanisms as there are links in the chain. The technique that obtains a different mechanism fixing the various links in turn is known as inversion.