Hostname: page-component-cd9895bd7-gxg78 Total loading time: 0 Render date: 2024-12-23T20:08:27.810Z Has data issue: false hasContentIssue false

Fourier-based optimal design of a flexible manipulator path to reduce residual vibration of the endpoint

Published online by Cambridge University Press:  09 March 2009

Kyung-Jo Park
Affiliation:
Center for Noise and Vibration ControlDepartment of Mechanical EngineeringKorea Advanced Institute of Science and TechnologyScience TownTaejon305–701 (Korea)
Youn-Sik Park
Affiliation:
Center for Noise and Vibration ControlDepartment of Mechanical EngineeringKorea Advanced Institute of Science and TechnologyScience TownTaejon305–701 (Korea)

Summary

A method is presented for generating the path which significantly reduces residual vibration. The desired path is optimally designed so that the system completes the required move with minimum residual vibration. The dynamic model and optimal path are effectively formulated and computed by using special moving coordinates, called virtual rigid link coordinates, to represent the link flexibilities. Also joint compliances are included in the model. Characteristics of residual vibration are identified from the linearized equations of motion. From these results, the performance index is selected to reduce residual vibration effectively. The path to be designed is developed by a combined Fourier series and polynomial function to satisfy both the convergence and boundary condition matching problems. The concept of correlation coefficients is used to select the minimum number of design variables, i.e. Fourier coefficients, the only ones which have a considerable effect on the reduction of residual vibration. A two-link manipulator is used to evaluate this method. Results show that residual vibration can be drastically reduced by selecting an appropriate manipulator path.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1993

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1.Aspinwall, D.M., “Acceleration Profiles for Minimizing Residual ResponseTransactions of the ASME, JDSMC 102, 36 (03., 1980).Google Scholar
2.Makino, H., Furuya, N., Soma, K. and Chin, E., “Research and Development of the SCARA RobotProc. 4th Int. Conf. on Production Engineering 885890 (1980).Google Scholar
3.Sehitoglu, H. and Aristizabal, J.H., “Design of a Trajectory Controller for Industrial Robots Using Bang-Bang and Cycloidal Motion ProfilesASME Winter Annual Meeting 169175 (12, 1986).Google Scholar
4.Swigert, C.J., “Shaped Torque TechniquesAlAA J. Guidance and Control 3, 460467 (09., 1980).CrossRefGoogle Scholar
5.Farrenkopf, R.L., “Optimal Open-Loop Maneuver Profiles for Flexible SpacecraftAlAA J. Guidance and Control 2, 491498 (11., 1979).CrossRefGoogle Scholar
6.Turner, J.D. and Junkins, J.L., “Optimal Large-Angle Single-Axis Rotational Maneuvers of Flexible SpacecraftAlAA J. Guidance and Control 3, 578585 (11., 1980).CrossRefGoogle Scholar
7.Turner, J.D. and Chun, H.M., “Optimal Distributed Control of a Flexible Spacecraft During a Large-Angle ManeuverAlAA J. Guidance, Control and Dynamics 7, 257264 (05, 1984).CrossRefGoogle Scholar
8.Hanafi, A. and Wright, F.W., “Optimal Trajectory Control of Robotic ManipulatorsMechanism and Machine Theory 19, No. 2, 267273 (1984).CrossRefGoogle Scholar
9.Breakwell, J.A., “Optimal Feedback Slewing of Flexible SpacecraftAlAA J. Guidance and Control 4, 472479 (09., 1981).CrossRefGoogle Scholar
10.Juang, J.N., Turner, J.D. and Chun, H.M., “Closed-Form Solutions for Feedback Control with Terminal Con- straintsAlAA J. Guidance, Control and Dynamics 8, 307320 (01., 1985).Google Scholar
11.Alberts, T.E., Hastings, G.G., Book, W.J. and Dickerson, S.L., “Experiments in Optimal Control of a Flexible Arm with Passive DampingProc. Fifth VPl & SU/AIAA Sym. on Dynamics and Control of Large Structures 423435 (06, 1985).Google Scholar
12.Sliverberg, L.M., “Uniform Damping Control of Space- craftAlAA J. Guidance, Control and Dynamics 9, 221227 (05, 1986).CrossRefGoogle Scholar
13.Dougherty, H., Tompetrini, K., Levinthal, J. and Nurre, G., “Space Telescope Pointing Control SystemAlAA J. Guidance, Control and Dynamics 5, 403409 (07, 1982).CrossRefGoogle Scholar
14.Cannon, R.H. and Schmitz, E., “Initial Experiments on the End-Point Control of a Flexible One-Link RobotInt. J. Robotics Research 3, 6275 (Fall, 1984).CrossRefGoogle Scholar
15.Meckl, P.H. and Seering, W.P., “Minimizing Residual Vibration for Point-to-Point MotionTransactions of the ASME J. Vibration, Acoustics, Stress, and Reliability in Design 107, 3846 (10., 1985).CrossRefGoogle Scholar
16.Onsay, T. and Akay, A., “Vibration Reduction of a Flexible Arm by Time-Optimal Open-loop ControlJ. Sound and Vibration 147, No. 2, 283300 (1991).CrossRefGoogle Scholar
17.Singer, N.C. and Seering, W.P., “Preshaping Command Inputs to Reduce System VibrationTransactions of the ASME, JDSMC 112, 7682 (03., 1990).Google Scholar
18.Jayasuriya, S. and Choura, S., “On the Finite Settling Time and Residual Vibration Control of Flexible StructuresJ. Sound and Vibration 148, No. 1, 117136 (1991).CrossRefGoogle Scholar
19.Asada, H., Ma, Z.D. and Tokumaru, H., “Inverse Dynamics of Flexible Robot Arms: Modeling and Computation for Trajectory ControlTransactions of the ASME, JDSMC 112, 177185 (06, 1990).Google Scholar
20.Fu, K.S., Gonzalez, R.C. and Lee, C.S.G., Robotics: Control, Sensing, Vision, and Intelligence (McGraw-Hill, New York, USA, 1987).Google Scholar