Abstract
A wave control is presented to suppress vibration at the distal end of a flexible robotic arm while achieving accurate tracking control. It assumes the arm with an actuator at one end and a load at the other, and interprets the arm’s dynamics with a lumped model in terms of mechanical waves entering and leaving the arm at the actuator-arm interface. Control input to the actuator is then resolved into two superposed waves, which the actuator launches and absorbs simultaneously. From the motion start-up, the launch wave is assigned to the actuator, to which the absorbing wave is added. The absorbing wave is computed with the delayed tip motion. It absorbs the vibratory energy within the arm, and prevents the wave returning from the arm tip from entering the control system again. The control system’s properties are investigated, and it works pretty well for trajectory tracking control, as demonstrated in the numerical results.
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Yang, T., Han, J., Qin, Y. (2015). Wave-Based Tracking Control of a Flexible Arm Using Lumped Model. In: Kim, JH., Yang, W., Jo, J., Sincak, P., Myung, H. (eds) Robot Intelligence Technology and Applications 3. Advances in Intelligent Systems and Computing, vol 345. Springer, Cham. https://doi.org/10.1007/978-3-319-16841-8_8
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DOI: https://doi.org/10.1007/978-3-319-16841-8_8
Publisher Name: Springer, Cham
Print ISBN: 978-3-319-16840-1
Online ISBN: 978-3-319-16841-8
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