Calculate tension in limbs, Mechanical Engineering

Assignment Help:

Calculate tension in limbs:

Q : A horizontal drum of belt drive carries the belt over semicircle around it. It is rotated counter clockwise to transmit a torque of 300N-m. If coefficient of friction between the belt and rope is 0.3, calculate tension in limbs 1 and 2 of belt shown in figure, and reaction on bearing. The drum is having mass of 20Kg and the belt is assumed to be mass less.

 

1841_Calculate tension in limbs1.png

Sol: Given: Torque(t) = 300N-m

Coff. of friction(µ) = 0.3

Diameter of Drum (D) = 1m, R = 0.5m

Mass of drum(m) = 20Kg.

Since angle of contact = p rad Torque = (T1  - T2).R

300 = (T1  - T2) X 0.5

T1- T2  = 600N                                                                                                                              ...(i)

And,     T1/T2  = eµθ

T1/T2  = e(0.3)p

T= 2.566T2                                                                                                                               ...(ii)

Solve (i) and (ii)

We get,

T1  = 983.14N                                                                .......ANS

T2  = 383.14N   .......ANS

Now reaction on bearing is opposite to mass of body, and it is equal to

R = T1  + T2  + mg

R = 983.14 + 383.14 + 20 X 9.81

R = 1562.484N                                                            .......ANS


Related Discussions:- Calculate tension in limbs

Wire feeding unit-co2 welding, WIRE FEEDING UNIT The wire electrodes ar...

WIRE FEEDING UNIT The wire electrodes are supplied as continues coils in wire spools. The solid wires are available in the following sizes 0.8, 1.0, 1.2, 1.6, 2.0 and 2.4 mm di

Friction, What are the laws of sold friction

What are the laws of sold friction

Determine a static feedforward controller, By operation of the distillation...

By operation of the distillation columns you are often interested to maintain output despite fluctuations in the composition, ex. feed composition and feed flow. One possible actua

Critical euler axial compression stress, Determine the minimum critical Eul...

Determine the minimum critical Euler axial compression force,  Pcr and the minimum critical Euler axial compression stress, cru, for the column below which is pinned at the top and

What are the objectives of bearing capacity, What are the objectives of bea...

What are the objectives of bearing capacity? The objectives of bearing capacity: a. identify the possible modes of failure that a shallow foundation can undergo, b. under

Classification-plastics-reinforced plastics and adhesives, Classification ...

Classification Two categories of plastics are identified. Those are: thermosetting plastics and thermoplastics. Plastics generally cannot stand higher temperatures. They becom

Heat transfer, Write down the expressions for the physical laws that govern...

Write down the expressions for the physical laws that govern each mode of heat transfer, and identify the variables involved in each relation.

Control of the guide vanes, Control of the guide vanes shall be by means of...

Control of the guide vanes shall be by means of an external linkage connected to the internal control ring Steam Generator piping. Inlet guide vanes shall be furnished with the

Constant mesh type gear box, Constant Mesh Type Gear Box : Most of the ge...

Constant Mesh Type Gear Box : Most of the gearboxes on motorcycles are "constant mesh". That means all the gears are constantly meshed with one another and are always spinning. T

Evaluate hydraulic efficiency, A pelton wheel works at the foot of a dam be...

A pelton wheel works at the foot of a dam because of which the head available at the nozzle is 400m. The nozzle diameter is 160mm and the coefficient of velocity is 0.98. The diame

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd