Based on the analytical solution of the equation of motion for a single degree-of-freedom model of a spring, the relation between the dynamic behavior and the kinematic features of input cam motions is discussed in this paper. A simple expression for the dynamic response spectrum of the vibration excited by the input motion is presented. It provides a useful tool to estimate the effect of cam motions on the dynamic behavior of springs. A method for the selection of cam motion curves based on this response spectrum is also presented in the paper. Examples are given to illustrate the method.
Issue Section:
Mechanisms and Robotics Papers
1.
Berzak, N., 1988, “Least-Square Optimization for Cam Follower System,” Trends and Development in Mechanisms, Machines, and Robotics-1988, DE-Vol. 15-2.
2.
Chen
F. Y.
1981
, “Assessment of the Dynamic Quality of a Class of Dwell-Rise-Dwell Cams
,” ASME JOURNAL OF MECHANICAL DESIGN
, Vol. 103
, pp. 793
–802
.3.
Chen, F. Y., 1982, Mechanics and Design of Cam Mechanisms, Pergamon Press, New York.
4.
Dresner, T. L., and Barkan, P., 1990, “New Method for the Dynamic Analysis of Flexible Single-input and Multi-input Cam Follower Systems,” ASME Publication DE-Vol. 26, Cams, Gears, Robot and Mechanism Design, pp. 33–39.
5.
Grewal
P. S.
Newcombe
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1988
, “Comparative Study of Cam Motions for High-speed Semi-rigid Follower Cam Systems
,” Transactions of the Canadian Society for Mechanical Engineers
, Vol. 12
, pp. 121
–128
.6.
Mahyuddin
A. I.
Midha
A.
Bajaj
A. K.
1994
, “Evaluation of Parametric Vibration and Stability of Flexible Cam-Follower Systems
,” ASME JOURNAL OF MECHANICAL DESIGN
, Vol. 116
, pp. 291
–297
.7.
Mahyddin
A. I.
Midha
A.
1994
, “Influence of Varying Cam Profile and Follower Motion Event Types on Parametric Vibration and Stability of Flexible Cam-Follower Systems
,” ASME JOURNAL OF MECHANICAL DESIGN
, Vol. 116
, pp. 298
–305
.8.
Paranjpe
R. S.
1990
, “Dynamic Analysis of a Valve Spring with a Coulomb-Friction Damper
,” ASME JOURNAL OF MECHANICAL DESIGN
, Vol. 112
, pp. 509
–513
.9.
Tu¨mer
S. T.
U¨nlu¨soy
Y. S.
1991
, “Nondimensional Analysis of Jump Phenomenon in Force-Closed Cam Mechanisms
,” Mechanism and Machine Theory
, Vol. 26
, No. 4
, pp. 421
–432
.10.
U¨nlu¨soy
Y. S.
Tu¨mer
S. T.
1993
, “Analytical Dynamic Response of Elastic Cam-Follower Systems With Distributed Parameter Return Spring
,” ASME JOURNAL OF MECHANICAL DESIGN
, Vol. 115
, pp. 612
–620
.11.
Wiederrich
J. L.
1981
, “Residual Vibration Criteria Applied to Multiple Degree of Freedom Cam Followers
,” ASME JOURNAL OF MECHANICAL DESIGN
, Vol. 103
, pp. 702
–705
.
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