Mechanical Engineering - Theory of machines - Discussion

Discussion Forum : Theory of machines - Section 4 (Q.No. 39)
39.
The centrifugal tension in belts
increases power transmitted
decreases power transmitted
have no effect on power transmitted
increases power transmitted upto a certain speed and then decreases
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
21 comments Page 2 of 3.

Abc said:   7 years ago
It should decrease the power transmitted.

Robin said:   1 decade ago
It decreases the power transmitted.

Shahnawaz said:   8 years ago
Ans: C.

The centrifugal tension in belts does not Affect the power transmission.

Has no effect on the Power transmitted".

If T1= Tight side-tension, T2= slack side-tension, v= velocity of drive;.

P= (T1-T2)v.

Centrifugal tension (Tc) acts on both tight and slack sides:

P=[ (T1+Tc) - (T2+Tc) ]v.
P= (T1 - T2) we even after considering Centrifugal tension.

Fredrick said:   8 years ago
For smaller speeds it can be ignored. but for higher speeds it should be taken;

Without centrifugal tension, P= T1 (1-1/e^μθ)V
Considering centrifugal tension (Tc), P= T1-Tc (1-1/e^μθ)V. therefore power will be decreased. OPTION B is correct.

Sandeep Kumar said:   8 years ago
I agree with your answer.

Patrick said:   8 years ago
@Lone Kaisar.

Can you elaborate it?

Lone Kaisar said:   8 years ago
P=T1[1 - 1/, ^μ*β]V.

Hence power transmission is lesser when Centrifugal force is taken into account.

Prashant said:   8 years ago
Yes, C. There is no effect on power transmitted.

Liza mohanty said:   8 years ago
C is correct. I agree with the given option.

Lovy said:   9 years ago
Power transmitted = (t1-t2)v.


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