Independent modal space control with positive position feedbackAn independent modal space control (IMSC) algorithm is presented, whose modal control forces are generated from a positive position feedback (PPF) strategy. The proposed algorithm combines the attributes of both the IMSC and the PPF, and maintains the simplicity of the IMSC as it designs the controller of a complex structure at the uncoupled modal level. The effectiveness of the algorithm in damping out the vibration of flexible structures is validated experimentally. A simple cantilevered beam is employed as an example of a flexible structure whose multimodes of vibration are controlled by a single actuator. Performance of the active control system is determined in the frequency and the time domains. The experimental results indicate the potential of the proposed methodology as a viable method for controlling the vibration of large flexible structures.
Document ID
19910039133
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Baz, A. (Catholic Univ. of America Washington, DC, United States)
Poh, S. (Catholic University of America, Washington, DC, United States)
Fedor, J. (NASA Goddard Space Flight Center Greenbelt, MD, United States)