10

11

12

13

14

a)
b)

a)

b)

E192003 Pages:3

Obtain the relations to find calculate the pitch angles of bevel gears
What do you mean by interference? What are its effects?

PART C
Answer any four full questions, each carries 10marks.
An epicyclic gear consists of a pinion, a wheel of 40 teeth and an annulus with 84

internal teeth concentric with the wheel. The pinion gears with the wheel and the
annulus. The arm that carries the axis of the pinion rotates at 100 rpm. If the
annulus is fixed, find the speed of the wheel; if the wheel is fixed, find the speed of
the annulus.

Explain the working of a differential with the help of a diagram and show that the
speed of crown gear is the arithmetic mean of the sun gears

A function varies from 0 to 10. Find the Chebychev spacing for six precision
points.

Explain the overlay method of synthesis.

Design a four bar linkage to generate the function y = e*-x for 0precision points

Design a four bar crank rocker to give 60° of rocker rotation with equal time
forward and backward from a constant speed motor input

Synthesize a four bar mechanism to guide a rod AB through three consecutive

positions A,B;, 0232 and A3B; as shown in figure

Y

(tt (5,6) (9,6)
81 42 43

بد ید ید ‎मैप‏

Page 3 of 3

(5)
(5)

(10 )

(10)

(5)

(5)
(10)

(10)

(10)