Part B

4. Find out the conjugate linkages for the given mechanism.

Dat 4 ‏مع‎
‎೦,8: 4 ‏مع‎
‎CA=AB=
‎B CB= 46

3cm

(9 Marks) 5. The minimum radius, lift and nose radius of a tangent cam are
42 mm, 14 mm and 16 mm respectively. The follower axis passes through the cam axis and
radius is 20 mm. Semi angle of cam is 70 °. Draw the displacement, velocity and acceleration
diagrams for the

following motion. (9 Marks)

6. a) Explain with appropriate diagrams the concept of Polydyne Cams. (5 Marks)

b) Explain Robert Chebychev theorm for cognate linkages. (4 Marks)
Part C

7. Derive expressions for the relationship between the moments and product of inertia ofa
body with respect to one system of coordinate axis and those with respect to another
system of coordinate axis attained by a rotation of the axis. (12 Marks)

8. Using three precision points and Chebychev spacing design a four bar mechanism to
generate the function y=e ‏مز"‎ the range 2 X 3 and input angle varies from 75 °to 1 20°and
output angle varies from 85 °to 130°. (12 Marks)

9. a) State and derive all the necessary conditions of a four wheel vehicle moving ona curved
path. (6 Marks)

b) Discuss the factors affecting the motion of rigid body about a fixed axis. (6 Marks)