Systems that exhibit flexible dynamics are widespread and present a very challenging control problem when their performance is pushed to the limit. If there is some knowledge of the flexible modes, then command signals can be generated to negate the detrimental dynamics. These vibration-reducing commands are dependent on the feedback controller gains because the gains influence the flexible modes. This paper presents a method for concurrently designing a PD feedback controller and a command generator so that performance is optimized. The design method takes into account limits on allowable overshoot, residual vibration, and actuator effort. Furthermore, the structure of the method allows a wide range of performance requirements, such as disturbance rejection, to be integrated into the design. Results demonstrate that a PD controller cannot achieve the same performance as a PD controller augmented with a command generator.
Concurrent Design of Input Shaping and Proportional Plus Derivative Feedback Control
Contributed by the Dynamic Systems and Control Division for publication in the JOURNAL OF DYNAMIC SYSTEMS, MEASUREMENT, AND CONTROL. Manuscript received by the Dynamic Systems and Control Division September 2000. Associate Editor: C. Rahn.
Kenison, M., and Singhose, W. (July 23, 2002). "Concurrent Design of Input Shaping and Proportional Plus Derivative Feedback Control ." ASME. J. Dyn. Sys., Meas., Control. September 2002; 124(3): 398–405. https://doi.org/10.1115/1.1486009
Download citation file: