Mechanical Engineering - Machine Design - Discussion
Discussion Forum : Machine Design - Section 3 (Q.No. 48)
48.
When the speed of belt increases,
Discussion:
18 comments Page 1 of 2.
Vaseem said:
8 years ago
The answer is C. Because at the higher speed the belt slips on the pulley and so the power will be less as compared to desired power at corresponding speed (as in ideal condition). If the belt doesn't slip on the pulley at a higher speed then the power will increase. But it is not possible in actual practice.
Sukhendu said:
5 years ago
@Jagadbandhu.
Centrifugal tension does not affect power transmission upto 10 m/sec, But here speed is so high that we have to consider Centrifugal tension. Due to Centrifugal tension slip occurs, thus reduces power transmission.
Hence Option C.
Centrifugal tension does not affect power transmission upto 10 m/sec, But here speed is so high that we have to consider Centrifugal tension. Due to Centrifugal tension slip occurs, thus reduces power transmission.
Hence Option C.
Mech said:
7 years ago
As speed increases, the centrifugal effect also increases and therefore power decreases with increase in speed. Power is max when centrifugal tension is equal to one-third of total tension.
Pavan kumar chilakala said:
7 years ago
According to the formula, power transmission should increase but as in actual practice that is impossible without slip.
(1)
Nisar said:
6 years ago
C is correct, because when speed increases centrifugal tension increases which decreases the power (Tmax-Tc:T1).
PURUSHOTHAM said:
7 years ago
When the speed of belt increases the frictional tension decrease between pulley and belt so power decreases.
Karun said:
7 years ago
Given option C is correct. Because belt speed increases, power transmitted decrease due to slip in belt.
Rahil said:
8 years ago
When the speed got increased then the sliping also increase so the power transmission got decrease.
AZMAL MALLICK said:
7 years ago
C is correct, practically speed increases than slip increases and so power decrease.
Vinay BEL said:
5 years ago
C is correct, practically speed increases than slip increases and so power decrease.
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