Implementation of Digital Control Strategies for Structural Response Reduction

Abstract: In the past, implementation of active structural control strategies employing
PC-based hardware has often been problematic, and there seems to be a need to improve
the understanding of the issues associated with implementation of digital control, as well
as to reduce the excessive computational times required for I/O processes and calculation
of control forces. Recently developed hardware based on dedicated digital signal processing
(DSP) chips has oered new possibilities for control algorithm implementation. This paper
discusses digital control system concepts and speci c practical aspects of digital control imple-
mentation including the use of supervision. Details regarding active structural control using
the Texas Instruments TMS320C30 DSP chip and experimental veri cation of the hardware
performance are given.