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Adding flexibility to the links of a rigid-link dynamic model of an articulated robot

Published online by Cambridge University Press:  09 March 2009

A. Bodner
A. Bodner
Affiliation:
ACTA, Inc., Plaza de Rina, Suite 101, 24430 Hawthorne Blvd. Torrance CA 90505 (USA)
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Summary

A method was developed that takes into account flexibility of robot links in the inverse dynamics calculations. This method uses the Newton-Euler equations and is applicable for special case systems that allow for only a small degree of flexibility. Application of the method should improve the accuracy of the position of the end effector during motion of the robot.

The results of this study show that the method can be based entirely on an existing rigid-link model with only minimal changes required as additions. The computational complexity of the method is discussed briefly as well and indicates an increase of computations of slightly more than a factor of two as compared to a rigid-link model for the same robot geometry.

Keywords

Dynamic modelFlexibilityArticulated robotRigid linksComputation.
Type
Research Article
Information
Robotica , Volume 7 , Issue 2 , April 1989 , pp. 165 - 168
Copyright
Copyright © Cambridge University Press 1989

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References

1.Winfrey, R.C., “Elastic Link Mechanism Dynamics” Transactions of the ASME 268–272 (02, 1971).Google Scholar
2.Winfrey, R.C., “Dynamic Analysis of Elastic Link Mechanisms by Reduction of Coordinates” J. Engineering for Industry 577–582 (05, 1972).CrossRefGoogle Scholar
3.Shabana, A. and Wehage, R.A., “Variable Degree-of-Freedom Component Mode Analysis of Inertia Variant Flexible Mechanical Systems” J. Mechanisms, Transmissions, and Automation in Design 105, 371–377 (09, 1983).Google Scholar
4.Khulief, Y.A. and Shabana, A., “Dynamics of Multibody Systems With Variable Kinematic Structure”, J. Mechanisms, Transmissions, and Automation in Design 108, 167–175 (05, 1986).Google Scholar
5.Yoo, W.S. and Haug, E.J., “Dynamics of Flexible Mechanical Systems Using Vibration and Static Correction Modes” J. Mechanisms, Transmissions, and Automation in Design 108, 315–321 (09 1986).Google Scholar
6.Sadler, J.P. and Sandor, G.N., “A Lumped Parameter Approach to Vibration and Stress Analysis of Elastic Linkages” J. Engineering for Industry 549–557 (05, 1973).CrossRefGoogle Scholar
7.Book, W.J., “Recursive Lagrangian Dynamics of Flexible Manipulator Arms” Int. J. Robotics Research 3(3), 87–101 (Fall, 1984).CrossRefGoogle Scholar
8.Book, W.J., Alberts, T.E. and Hastings, G.G., “Design Strategy for High-Speed, Lightweight Robots” CIME 5, No. 2 (1986).Google Scholar
9.Luh, J.Y.S., Walker, M.W. and Paul, R.P.C., “On-Line Computational Scheme for Mechanical Manipulators” J. Dynamic Systems, Measurement and Control 102, No. 2, 69–76 (06, 1980).Google Scholar
10.Hollerbach, J.M. and Sahar, G., “Wrist-Partitioned Inverse Kinematic Accelerations and Manipulator Dynamics”, Int. J. Robotics Research 2(4), (Winter, 1983).CrossRefGoogle Scholar
11.Truckenbrodt, A., “REGELUNG ELASTICHER MECH-ANISCHER SYSTEM” Regelung stechnik RT 30, No. 8, 277–285 (08, 1982).Google Scholar
12.Cannon, R.H. Jr., and Schmilz, E., “Initial Experiments on the End-Point Control of a Flexible One-Link Robot” Int. J. Robotics Research 3(3), 62–75 (Fall, 1984).CrossRefGoogle Scholar
13.Balas, M.J., “Optional Quasi-Static Shape Control for Large Aerospace Antennae” J. Optim. Theory Appl 46, No. 2, 153–170 (06, 1985).CrossRefGoogle Scholar