Calculate tension in limbs, Mechanical Engineering

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

Posted Date: 10/19/2012 6:36:04 AM | Location : United States







Related Discussions:- Calculate tension in limbs, Assignment Help, Ask Question on Calculate tension in limbs, Get Answer, Expert's Help, Calculate tension in limbs Discussions

Write discussion on Calculate tension in limbs
Your posts are moderated
Related Questions
what do u you understand by steady state?

(a) What do you mean by ignition system? Write down its functions. (b) Briefly describe the working principle of ignition system. (c) How is energy generated inside the batte

Q. Design an Evaporator System? The Evaporator System is designed to produce high quality distillate. The feed water to the evaporator system is dosed with antiscalant and rece

when object is placed beyond the center of concave mirror

What is Drilling It is an operation by which holes are produced in solid metal by means of revolving tool known as „Drill?. The various operations on drilling machine.

Determine the process of modelling The process of modelling is much easier, if mathematical description of an object, or at least of part of an object may be applied. In the fi

T emperatur e Measurement by Using Thermometers: To measure temperature at temperature scale should be devised assigning arbitrary numbers to a known specific level of hotne

Problem - Newton's Third Law Newton's Third Law of Motion states that if two objects interact, the force F 12 exerted by object 1 on object 2 is equal in magnitude and oppos

Record Keeping Systematic process for collecting information on employees health, working conditions and any accident requirement be established in a company. Various differe

Necessity of Battery To obtain power for ignition system. To obtain power for lighting. To obtain power for horn. To obtain power for self-starting.