The displacement diagram of a radial plate cam with a knife edge follower is shown in Fig. 1. If the cam rotates at 6 rev per min, determine the time that it takes to Rise bDwell after the rise ar Return Dwell after the return Make one complete rotation C b B Out stroke-Del-Return stroke-Duel G H C D E F A12345 120 30 K Fig. 1 NP B 123456 120 20 mm

Table 1. Geometry of the cam. Point x (in.) | y (in.) 1 2.20 0.00 1.28 0.88 3 0.66 1.14 4 0.00 1.20 -0.60 1.04 6. -1.04 0.60 7 -1.20 0.00 e 1. Schematic of cam profile. If the cam follows a straight line profile from x=1.28 to x= 0.66, what is the value of y at x=1.10 using Newton's divided difference method of interpolation and a first order polynomial. If the cam follows a quadratic profile from x=2.20 to x=1.28 to x=0.66, what is the value of y at x=1.10 using Lagrange method of interpolation and a second order polynomial. Find the cam profile using all seven points in Table 1, Newton's divided difference method of interpolation and a sixth order polynomial. Find the cam profile using all seven points in Table 1, Least-Squares method of regression and a sixth order polynomial.

The cam rotates at the angular velocity of @ = 10rad / s . R= 50mm , 140 = 20mm . Calculate the velocity V2 of link 2, when ø = 45° , and 90°, respectively. %3D B R

A cam is to give the following motion to a knife-edged follower: 1. Outstroke during 75° of cam rotation; 2. Dwell for the next 60° of cam rotation; 3. Return stroke during the next 80° of cam rotation, and 4. Dwell for the remaining 145° of cam rotation. The stroke of the follower is 30 mm and the minimum radius of the cam is 40 mm. The follower moves with uniform velocity during both the outstroke and return strokes. Draw the profile of the cam when (a) the axis of the follower passes through the axis of the camshaft, and (b) the axis of the follower is offset by 25 mm from the axis of the camshaft. Determine the maximum velocity and acceleration of the follower during its ascent and descent, if the cam rotates at 250 r.p.m. Draw the displacement, velocity and acceleration diagrams for one complete revolution of the cam

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