00:01
In the question we are already given that d by d would be equal to that is the diameter would be equals to 3 by 8 the ratio is already given to us.
00:11
Now first we would be finding the value of mean torque to find the value of v mean torque we would be using the formula p is equals to 2 pi n p mean divided by 60.
00:30
Now applying the formula we have p p is already given to us as 650 into 10 to the power 3 which is equals to 2 pi into n that is 120 into p mean divided by 60.
00:53
After dividing it we have p mean is equals to 650 into 10 to the power 3 divided by 2 pi into 2.
01:08
Now solving this further we would be getting the value of p mean.
01:12
So, p mean is equals to 51 ,725 .35 newton meter this is the value of p mean.
01:29
Now we have the value of p mean we need to find maximum torque that is p max maximum torque.
01:40
Alright, the t max is equals to 1 .2 t mean which would be 1 .2 into 51 ,725 .35 which would give us the value as 62 ,070 .42 newton meter as the value of t max.
02:09
Now we have the value of t mean we have the value of t max.
02:15
So, maximum shear stress is equals to 16 t max that is the maximum torque into d divided by pi d4 minus d raised to power 4 again.
02:34
We have shear stress ratio is equals to 16 we have 16 t max we can write here the value of t max too adding those d4 minus d raised to power 4.
02:51
Now put the values 16 into what is the value of t max that is 62 ,070 .42 into 10 to the power 3 into d then pi that is 3 .14...