Force required to start the roller, Mechanical Engineering

Assignment Help:

Force required to start the roller:

A roller shown in the figure given below is of mass 150Kg. What force T is required to start the roller over block A?

Sol.: Let R be reaction given by block to the roller, and is to act at point A subtends an angle of ? as shown in the figure given below,

For finding angle θ  ,

Sin θ  = 75/175 = 0.428

= 25.37°

Apply lami's theorem at 'A', as the body is in equilibrium

T/sin(90° + 25.37°) = 150 × g/ sin(64.63° + 65°)

T = [150 × g × sin(90° + 25.37°)]/ sin(64.63° + 65°)

T = 1726.33N

 

854_Force required to start the roller.png

 


Related Discussions:- Force required to start the roller

Bending strength machine, what is bending strength machine parts of bendin...

what is bending strength machine parts of bending strength machine and description about different parts of bending strength machine description about bending srength machine and

hammers and mallet-tool and equipment , Hammer/Mallet: Hammer is used to ...

Hammer/Mallet: Hammer is used to strike a job to bring it in shape or otherwise. It is made of carbon steel. The wooden handle does not allow the shock to hand but handles made in

Design of a filament winding machine, How can I achieve a back and forth mo...

How can I achieve a back and forth movement of carriage system. How can I reverse the motor to go back and forth.

Illustrate thermal and hydrodynamic boundary layer, Define different regime...

Define different regimes of boiling and depict their ranges on a excess temperature curve us heat flux. Also distinguish between laminar film condensation and dropwise condensation

He- ne laser, constructing and working of he- ne laser

constructing and working of he- ne laser

Spot welding of different metals-nickel and monel metal, Spot welding of di...

Spot welding of different metals-Nickel and monel metal While spot welding these materials, the settings are to be properly maintained. Welding time, in this case, is only 50 %

Explain types of patterns, Types Of Patterns There are various types of...

Types Of Patterns There are various types of patterns depending upon the complexity of the job, the number of castings required and the moulding procedure adopted. Singl

Explain interference between two mating gears, What do you understand by in...

What do you understand by interference between two mating gears ? if interference between two involutes gears is to be avoided then show that the maximum length of arc of contact w

Classification of internal combustion models of engine, CLASSIFIC A TIO ...

CLASSIFIC A TIO N: 1.     In accordance to number of strokes per cycle: (a) Two stroke          (b) Four stroke. 2.     In accordance to the fuel being used: (a)

How do we adjust throttle free play?, (a) What is the function of a throttl...

(a) What is the function of a throttle valve? Where it is used? (b) How do we adjust throttle free play?

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