Page 53 - Cam Design Handbook
P. 53
THB2 8/15/03 12:48 PM Page 41
Jerk y'" = •
Displacement, y
Acceleration, y"
Dwell
y, y', y", y'" Velocity, y' h
0 Cam Angle q b
Dwell
Jerk y'" = •
FIGURE 2.7. Cubic no. 2 curve—DRD cam.
Midpoint
h
4
h
2
3
∆ Q
2
P 1
0 1 2 3 4 b
Cam Angle q
FIGURE 2.8. Simple harmonic motion curve construction.
41
