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Active-member control of precision structures
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1989
Year
Closed Loop ExperimentsEngineeringMechanical EngineeringPrecision Truss StructureStructural OptimizationStructural EngineeringSoft RoboticsFlexible MotionSystems EngineeringNonlinear Vibration ControlStructural DynamicStructural VibrationMechatronicsComputer EngineeringActive Vibration ControlControl DesignActive-member ControlControl StructureMechanical SystemsStructural MechanicsVibration ControlFeed Forward (Control)
This paper presents the results of closed loop experiments that use piezoelectric active-members to control the flexible motion of a precision truss structure. These experiments are directed toward the development of high performance structural systems as part of the Control/Structure Interaction program at JPL. Order of magnitude reductions in dynamic response are achieved with relatively simple control techniques. The practical implementation of high stiffness, high bandwidth active-members in a precision structure highlights specific issues of importance relating to the modelling and implementation of active-member control.