SYMBOLS

c _e = p ₀ + p _i = distance between centers of rotation, in

C = a constant

D = effective diameter of rollers, in

E = distance from cam center to circular arc center of curvature, in

h = 2E = maximum displacement of follower, in

K _i, K ₀ = constants

M = equivalent mechanism connecting rod length, in

r = instantaneous radial distance from center of cam, in

Figure 14.1. Cam-modulated linkages.

R _r = roller-follower radius, in

R _w = mean radius of pin wheel, in

T = torque transmitted, tangent to the bodies, 16/in ²

V _P/Q = velocity of contact point P on body B with respect to the ground A in the tangent direction, in/sec

V _P/A = velocity of contact point P on body C with respect to the ground A, in/sec

x, x ₁, x ₂ = input cam angular rotation, rad

y = follower displacement, in

y _? = equivalent mechanism follower displacement measured from crank-end dead center, in

Y = output follower angular rotation, rad

? = angle between tangents to cam contour

? = crank angle rotation (equivalent mechanism) for displacement y _e, rad

= angle tan ^{? 1}

= coefficient of friction position, in

? ₀ = angle...