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

Describe loose piece pattern, Loose piece pattern This type of pattern ...

Loose piece pattern This type of pattern is also used when the contour of the part is such that withdrawing the pattern from the mould is not possible. Hence during moulding th

Construction of boiler, CONSTRUCTIO N FEATURES : Comprises of a water ...

CONSTRUCTIO N FEATURES : Comprises of a water drum which is connected to two headers at the front and back ends. The headers are connected by large number of water tubes which

What do you mean by dilution method, Q. What do you mean by Dilution method...

Q. What do you mean by Dilution method? Dilution methods are more suited especially in hilly streams and torrents where current meter measurements are not feasible on account o

Maintenance of bridges - culverts and shoulders, Maintenance of Bridges and...

Maintenance of Bridges and Culverts: Careful inspection of bridges and culverts at periodic intervals can detect cracks, foundation settlement, scour, malfunction of bearings

Show corrosion loss, Q. Show Corrosion Loss? Additional metal thickness...

Q. Show Corrosion Loss? Additional metal thickness must be added, to compensate for anticipated loss due to metal reacting with the environments to which it is subjected, inclu

Performance of heat engine - thermodynamics , Performance of Heat engine: ...

Performance of Heat engine: Performanc e of HP:   It is measured by thermal efficiency that is the degree of useful conversion of heat received into work.

Turnning fixtures, what are the forces acting on workpiece during turning p...

what are the forces acting on workpiece during turning process. how workpiece should be clamp

Explain about hydraulic calculation, Hydraulic calculations are carried out...

Hydraulic calculations are carried out by both Process and Mechanical Engineering. Generally speaking, Process Engineering will initiate many hydraulic calculations for piping sys

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