Sunday, 11 August 2013

MECHANISM

DEFINITION:- mechanism is obtained, when one of the link of a kinematic chain is fixed. or simply when we fix a link of kinematic chain is called as mechanism.Mechanism is used to transmit the motion to various parts of the machine.
By changing the type of pairs and fixing another link may vairy or change the output by a significant value. so mechanism is very important to study.

Mechanisms are of two types:-
1.Simple
2.Compound

Mechanism is not a machine. it is just like a skeleton of a machine
A mechanism example.
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INVERSION OF MECHANISM:-
    By fixing one of the  link of a kinematic chain at one time, a mechanism is formed.For example, a kinematic chain have four different mechanisms by fixing its different links one at a time. Thus a no. of  mechanisms, as the no. of links in a kinematic chain can be obtained. this process is known as INVERSION OF MECHANISM.                                    

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