B1 a) Explain about horizontal shaft alignment by LASER...

B1 a) Explain about horizontal shaft alignment by LASER method. (explain 1.5.marks) b) Explain any one type of misalignment with sketch. (sketch 0.5 mark, explain 1 mark) c) Sketch & explain induced foot. (Explain 0.5 mark, sketch 0.5 mark)

Transcript

00:01 Hello students in this question a shaft is supported by a thrust bearing.

00:05 This is the shaft system with p acting downwards and q acting downwards.

00:12 This is c and d and there is a and b in here.

00:17 So these are all one meter lengths.

00:20 So the center of mass of the system will be this is totally three meters.

00:23 So center of mass will be 1 .5 meters from the either ends.

00:29 So with that in place we can find out the reaction forces.

00:32 So here the force here p is equal to 10 kilo newton and q is equal to 20 kilo newton.

00:41 So we can find out the force from the center of mass.

00:45 So we can write out the equation force will be equal to 1 .5 times 10 in the 10 kilo newton in the anti clockwise direction anti clockwise direction and we have 20 times 1 .5 in the clockwise direction.

01:04 So two rotational torques are there.

01:09 So with that in place we can calculate the balancing force.

01:13 Now what is the balancing force required to maintain this thing right.

01:18 There is one kilo newton in this direction.

01:20 So what is the balancing force towards the upside in a and b.

01:25 So a is half meter from the center.

01:29 So the balancing force the total force is 10 kilo newton and 20 kilo newton.

01:35 So to balance 10 kilo newton at 15.

01:39 So that is equal to 15 kilo newton meter for the ac part.

01:47 So or the c part anti clockwise part and for clockwise part it is 3 1 .5 times 20.

01:59 So that is 30 kilo newton meter.

02:01 So that is the torque...

Question

B1 a) Explain about horizontal shaft alignment by LASER method. (explain 1.5.marks) b) Explain any one type of misalignment with sketch. (sketch 0.5 mark, explain 1 mark) c) Sketch & explain induced foot. (Explain 0.5 mark, sketch 0.5 mark)

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