Mechanical Engineering Exam > Mechanical Engineering Questions > In case of belt drives, the effect of the cen...
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In case of belt drives, the effect of the centrifugal tension is to
- a)cause the belt to leave the pulley and increases the power to be transmitted
- b)cause the belt to stay on the pulley and increase the power to be transmitted
- c)reduce the driving power of the belt
- d)stretch the belt in longitudinal direction
Correct answer is option 'C'. Can you explain this answer?
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In case of belt drives, the effect of the centrifugal tension is toa)c...
Note that centrifugal tension reduces the power transmission capacity but it is provided to keep the belt on pulley.
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In case of belt drives, the effect of the centrifugal tension is toa)c...
Effect of Centrifugal Tension in Belt Drives
Centrifugal tension is the tension that is produced in a belt drive due to the flinging action of the belt as it rotates. This tension is dependent on the speed of rotation of the pulleys and the mass of the belt.
The effect of centrifugal tension on a belt drive is as follows:
Reduction in Driving Power
When the speed of rotation of the pulleys increases, the centrifugal tension also increases. This tension acts in the outward direction and opposes the tension that is applied to the belt by the pulleys. As a result, the effective tension in the belt reduces, leading to a reduction in the driving power of the belt.
Loss of Contact between Belt and Pulley
If the centrifugal tension becomes greater than the tension that is applied to the belt by the pulleys, the belt may lose contact with the pulleys. This can result in a loss of power transmission as the belt is no longer able to transmit the torque from the driving pulley to the driven pulley.
Conclusion
In summary, the effect of centrifugal tension in a belt drive is to reduce the driving power of the belt and, in extreme cases, to cause the belt to lose contact with the pulleys. Therefore, it is important to consider the effect of centrifugal tension when designing belt drives and to ensure that the belt is properly tensioned to prevent loss of power transmission.
Centrifugal tension is the tension that is produced in a belt drive due to the flinging action of the belt as it rotates. This tension is dependent on the speed of rotation of the pulleys and the mass of the belt.
The effect of centrifugal tension on a belt drive is as follows:
Reduction in Driving Power
When the speed of rotation of the pulleys increases, the centrifugal tension also increases. This tension acts in the outward direction and opposes the tension that is applied to the belt by the pulleys. As a result, the effective tension in the belt reduces, leading to a reduction in the driving power of the belt.
Loss of Contact between Belt and Pulley
If the centrifugal tension becomes greater than the tension that is applied to the belt by the pulleys, the belt may lose contact with the pulleys. This can result in a loss of power transmission as the belt is no longer able to transmit the torque from the driving pulley to the driven pulley.
Conclusion
In summary, the effect of centrifugal tension in a belt drive is to reduce the driving power of the belt and, in extreme cases, to cause the belt to lose contact with the pulleys. Therefore, it is important to consider the effect of centrifugal tension when designing belt drives and to ensure that the belt is properly tensioned to prevent loss of power transmission.
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In case of belt drives, the effect of the centrifugal tension is toa)cause the belt to leave the pulley and increases the power to be transmittedb)cause the belt to stay on the pulley and increase the power to be transmittedc)reduce the driving power of the beltd)stretch the belt in longitudinal directionCorrect answer is option 'C'. Can you explain this answer?
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