Maximum permissible stress in belt, Mechanical Engineering

Assignment Help:

Maximum permissible stress in belt:

Q: A belt 100mm wide and 8.0mm thick are transmitting power at belt speed of 160m/minute. The angle of lap for smaller pulley is 165º and the friction coefficient is 0.3. The maximum permissible stress in belt is 2MN/m2 and mass of belt is 0.9Kg/m. find power transmitted and initial tension in belt.

Sol.: Given

Width of belt(b)         = 100mm

Thickness of belt(t)    = 8mm

Velocity of belt(V)      = 160m/min = 2.66m/sec

Angle of contact(?)     = 165° = 165° X  Π/180 = 2.88rad

Coefficient of friction(µ) = 0.3

Maximum permissible stress(f) = 2 X 106 N/m2    = 2N/mm2

Mass of the belt material(m) = 0.9 Kg/m

Power = ?

Initial tension (To) = ?

We know that, Tmax  = σ.b.t = 2  X 100 X 8 = 1600N                                                                      ...(i)

As m and velocity (V) is given, then

Using formula, TC  = mV2, For finding TC

1386_Maximum permissible stress in belt.png


Related Discussions:- Maximum permissible stress in belt

Determine minimum value of weigh to cause motion, Determine minimum value o...

Determine minimum value of weigh to cause motion: Determine minimum value of weight W required to cause motion of block, which rests on a horizontal plane. The block weighs 3

Typical joint designs used in electron beam welding, TYPICAL JOINT DESIGNS ...

TYPICAL JOINT DESIGNS THAT ARE USED IN ELECTRON BEAM WELDING Butt joint : Butt joint is the preferred joint as it involves only a small amount of machining prior to wel

What are the rules important when designing castings, What are the rules wh...

What are the rules which must be kept in mind when designing castings? Some of the points which should be kept in mind during the process of cast designing are as follows: >

Aggregate production planning, Aggregate Production Planning: This uni...

Aggregate Production Planning: This unit provides the definition and physical significance of aggregate production planning. Further, this is illustrated that how the internal

Mass balances on systems, To make strawberry jam, a two-stage process is us...

To make strawberry jam, a two-stage process is used as shown in the figure.  First, crushed strawberries and sugar are mixed in a 45:55 ratio by mass. Then the mixture is heated to

Surveying.., what is the two purposes of surveying

what is the two purposes of surveying

Opportunities, what is the positive opportunities for this major

what is the positive opportunities for this major

Determine the actual average pressure, A multiple disc clutch, steel on bro...

A multiple disc clutch, steel on bronze, is to transmit 4.5 kW at 750 r.p.m. The inner radius of contact is 40mm and outer radius of the contact is 70 mm. The clutch operates in oi

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