Velocity of belt, Mechanical Engineering

velocity of belt:

velocity of belt passing over the driver pulley will decrease

1241_slip of belt1.png
Now with this velocity belt pass over driven pulley, Now

Velocity of Driven = Velocity of Belt - Velocity of belt X (S2  /100)
2327_slip of belt2.png
But velocity of driven 1710_slip of belt3.png
Equate equation (iii) and (iv)
1149_slip of belt4.png

N2D2  = N1D1(1-s1/100-s2/100 + s1.s2/10,000)

= N1D1[1-(s1+s2)/100], By neglecting s1.s2/10,000, since very small

If  s1 + s2= S = Total slip in %

N2/N1  = D1/D2[1-S/100]

This formula is used when total slip in percentage is given in problem

NOTE: If Slip and thickness are given then, Velocity ratio can be given by,

V.R = N2/N1  = 206_slip of belt5.png [1-s/100]

Posted Date: 10/17/2012 8:29:33 AM | Location : United States







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