In a flat belt drive the belt can be subjected to a maximum tension T ...
Condition for transmission of maximum power in a flat belt drive
The condition for transmission of maximum power in a flat belt drive is when the tension T and centrifugal tension Tc are in a specific ratio.
Formula for maximum power transmission
The formula for maximum power transmission is given by P = (T-Tc) × V, where P is power, T is tension, Tc is centrifugal tension, and V is belt velocity.
Condition for maximum power transmission
To achieve maximum power transmission, the tension T and centrifugal tension Tc should be in the ratio of 3:1. Therefore, the correct option is D, T = 3Tc.
Explanation
When the tension T and centrifugal tension Tc are in the ratio of 3:1, the maximum power is transmitted through the belt. This is because the centrifugal force acting on the belt is counterbalanced by the tension T.
If the tension T is equal to Tc, the belt will slip, and no power will be transmitted. If T is less than Tc, the belt will fly off the pulley, and if T is greater than 3Tc, the belt will stretch, resulting in power loss.
Therefore, the tension ratio of 3:1 is the optimal condition for maximum power transmission in a flat belt drive.
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