MINIMAX DESIGN OF PREFILTERS FOR MANEUVERING FLEXIBLE STRUCTURES

This paper focuses on the design of prelters for ma-neuvering structures with the objective of desensitizing the controller to errors in the system model. Given information about the expected variation of the un-certain parameters, a minimax optimization problem is formulated to minimize the maximum value of the residual energy over the range of the uncertain pa-rameter. The proposed technique is illustrated on a spring-mass-dashpot system with uncertainties in both the damping and stiness constants and on a two-mass two-spring, two input system