A cam driving a lumped inertia through an elastic slider-crank follower linkage with its actuator, a D. C. motor, has been considered in this work. An iterative procedure utilizing the finite element method developed by Midha et al. (1978) is used to synthesize the cam profile to produce a desired output motion at a given design speed and damping ratio. The elastic deflections induced by the large inertia of the linkage operating at a fluctuated high speed of the driving cam are taken into account in synthesizing the cam profile. Responses of the synthesized linkages are simulated and found to be satisfactory at the design conditions.
Issue Section:
Research Papers
1.
Chen
F. Y.
1973
, “Analyses and Design of Cam-Driven Mechanisms with Nonlinearities
,” ASME Journal of Engineering for Industry
, Vol. 95
, pp. 685
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.2.
Chew
M.
Freudenstein
F.
Longman
R. W.
1983
, “Application of Optimal Control Theory to the Synthesis of High-Speed Cam-Follower Systems, Part 1: Optimality Criterion; Part 2: System Optimization
,” ASME JOURNAL OF MECHANISMS, TRANSMISSIONS, AND AUTOMATION IN DESIGN
, Vol. 105
, pp. 576
–591
.3.
Gupta
K. C.
Wiederrich
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1983
, “Development of Cam Profiles Using the Convolution Operator
,” ASME JOURNAL OF MECHANISMS, TRANSMISSIONS, AND AUTOMATION IN DESIGN
, Vol. 105
, pp. 654
–657
.4.
Johnson
R. C.
1959
, “Dynamic Analysis and Design of Relatively Flexible Cam Mechanisms Having More Than One Degree of Freedom
,” ASME Journal of Engineering for Industry
, Vol. 81
, pp. 323
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.5.
Liou
F. W.
Erdman
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1991
, “Dynamic Analysis of a Motor-gear-mechanism System
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, Vol. 26
, pp: 239
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.6.
Liu
H. J.
Flugrad
D. R.
1993
, “Synthesis and Steady State Analysis of High-Speed Elastic Cam-actuated Mechanisms by a Finite Element Method
,” ASME JOURNAL OF MECHANICAL DESIGN
, Vol. 115
, pp. 800
–807
.7.
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
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.8.
Matthew
G. K.
Tesar
D.
1976
, “Cam System Design: The Dynamic Synthesis and Analysis of the One Degree of Freedom Model
,” Mechanism and Machine Theory
, Vol. 11
, pp. 247
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.9.
Midha
A.
Erdman
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Frohrib
D. A.
1978
, “Finite Element Approach to Mathematical Modelling of High-Speed Elastic Linkages
,” Mechanism and Machine Theory
, Vol. 13
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.10.
Midha
A.
Erdman
A. G.
Frohrib
D. A.
1979
, “A Closed-Form Numerical Algorithm for the Periodic Response of High-Speed Elastic Linkages
,” ASME JOURNAL OF MECHANICAL DESIGN
, Vol. 101
, pp. 154
–162
.11.
Midha
A.
Turcic
D. A.
1980
, “On the Periodic Response of Cam Mechanism with Flexible Follower and Camshaft
,” ASME Journal of Dynamic Systems, Measurement, and Control
, Vol. 102
, pp. 255
–264
.12.
Nagarajan
S.
Turcic
D.
1990
, “General Methods of Determining Stability and Critical Speeds for Elastic Mechanism Systems
,” Mechanism and Machine Theory
, Vol. 25
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.13.
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14.
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15.
Sandor
G.
Zhuang
X.
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,” Mechanism and Machine Theory
, Vol. 20
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.16.
Tsay, D. M., and Huey, C. O., Jr., 1989, “Synthesis and Analysis of Cam-Follower Systems with Two Degrees of Freedom,” ASME Advances in Design Automation - 1989, Vol. 3, pp. 281–288.
17.
Wiederrich
J. L.
Roth
B.
1975
, “Dynamic Synthesis of Cams Using Finite Trigonometric Series
,” ASME Journal of Engineering for Industry
, Vol. 97
, pp. 603
–618
.
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