Question

Conditions for complete balancing of several masses rotating in same plane

Answer 1

In order to have a complete balance of the several revolving masses in different planes, 1. the forces in the reference plane must balance, i.e., the resultant force must be zero and 2. the couples about the reference plane must balance i.e., the resultant couple must be zero.

Answer 2

Explanation:

Balancing of rotating masses -

For a system to be in complete balance both force and couple polygons should be closed.in order to prevent the effect of centrifugal force. Balancing is important to design the machine part's so wisely, that the unbalance is reduced upto the minimum possible level or eliminated completely.