Ln. Srinivasan et Qj. Ge, DESIGNING DYNAMICALLY COMPENSATED AND ROBUST CAM PROFILES WITH BERNSTEIN-BEZIER-HARMONIC-CURVES, Journal of mechnical design, 120(1), 1998, pp. 40-45
This paper deals with the problem of designing dynamically compensated
cam profiles to minimize residual vibrations in high-speed cam-follow
er systems. The traditional Polydyne method is modified and extended t
o achieve significant improvement in residual vibration characteristic
s. First, cam displacement curves are represented by Bernstein-Bezier
harmonic curves as opposed to polynomial curves. These recently develo
ped harmonic curves are low in harmonic content and therefore the resu
lting cant profiles are less prone to induce resonant vibrations in th
e follower system. Second, the design procedure is expanded such that
the residual vibrations of the resulting cam-follower system is not on
ly extinguished at the design speed but also made insensitive to speed
variations. Numerical examples are given in the end.