Slip of Belt:- Ans:- When driver pulley rotates firm grip between its surface and the belt. This firm grip between pulley and belt is because of friction and known as frictional grip. If this frictional grip becomes insufficient to transmit the motion of pulley to belt. Then there will be. 1) Forward motion of driver pulley without carrying belt called as slip on driving side.
ii) cam profile:
i) Velocity of crank AO:
VAO = (r X ω ) X (480 X 20)
aab = l(ab) X Scale = 4.3 X 40 X 103
aab = 172 X 10 mm/sec2
Construction and Working of Eddy current dynamometer :
Difference between Flywheel and Governor :
Elliptical trammel :
Law of Gearing
Law of gearing states that the common normal at the point of contact between a pair of teeth must always pass through the pitch point for all positions of mating gear. This law forms the basis for the gear profile design. This is a must condition for the two gears to perform properly.
Law of gearing Proof
Consider the portions of two gear teeth in mesh.o1 and o2 are centre points,
Let K= point of contact
TT = COmmon tangent at the point of contact K