Input Shaping for Feedforward Control of a Flexible Polymethyl Methacrylate Beam Manipulator

Article Preview

Abstract:

The objective of this research work is to model a dynamical system that can undergo flexible deformations along with the general rigid-body motions. For the system to be able to provide precise outputs when excited by an input, the modal shapes need to be examined and a suitable control strategy is required to make the manipulator adapt to a particular use. The input shaping parameters have been analyzed for specific modes of vibrations. The model uses a Gaussian input torque and power spectral density plots are developed with suitable sampling frequency to show the variation of PSD for the modes of vibration under consideration, thereby providing an insight into the shaping parameters of the Gaussian input.

You might also be interested in these eBooks

Info:

Periodical:

Pages:

2160-2164

Citation:

Online since:

July 2014

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2014 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

* - Corresponding Author

[1] A. Bannerjee, B. Bhattacharya, and A.K. Mallik (2011), Forward and Inverse Analyses of an SMA Actuated Compliant Link, Journal of Mechanisms and Robotics, Vol. 3, 021003, pp.1-10.

DOI: 10.1115/1.4003528

Google Scholar

[2] Larry L. Howell (2001), Compliant Mechanisms, John Wiley and Sons.

Google Scholar

[3] M.O. Tokhi, A.K.M. Azad (2008), Flexible Robot Manipulators: Modelling, Simulation and Control, IET, London, UK.

Google Scholar

[4] Meirovitch, L. (1967), Analytical Methods in Vibrations, Macmillan, New York.

Google Scholar

[5] Moallem, M., Patel, R.V., and Khorasani, K., (2002), Nonlinear Tip-Position Control of a flexible-Link Manipulator. Theory and Experiments, Automatica, Vol. 37, No. 11, 1825-1834.

DOI: 10.1016/s0005-1098(01)00130-3

Google Scholar

[6] James M. Hyde and Warren P. Seering (1991), Using Input Command Pre-Shaping to suppress Multiple Mode Vibration, Proceedings of the 1991 IEEE International Conference on Robotics and Automation, Sacramento, CA- April (1991).

DOI: 10.1109/robot.1991.132020

Google Scholar

[7] Singhose, W., Banerjee, A. and Seering, W. (1997), Slewing Flexible Spacecraft with Deflection-Limiting Input Shaping, Journal of Guidance, Control, and Dynamics, Vol. 20(2), pp.291-298.

DOI: 10.2514/2.4036

Google Scholar

[8] F. Boyer, N. Glandais, and W. Khalil, (2002), Flexible Multibody Dynamics Based on a Non-Linear Euler-Bernoulli Kinematics, International Journal for Numerical Methods in Engineering, Vol. 54, No. 1, 27-59.

DOI: 10.1002/nme.414

Google Scholar

[9] Francois Axisa, Philippe Trompette (2005), Modelling of Mechanical Systems: Structural Elements, Volume 2, Butterworth –Heinemann.

Google Scholar