SEREP Integrated Control of Flexible Structures

Minimum-time Control Characteristics of Flexible Structures

The time-optimal control of exible structures is considered. We formulate the general time-optimal control problem for single-axis exible structures, and analytical results are given for the number of control switches for the one-bending-mode case, with and without damping. When there is no damping , it is shown that the time optimal control generally has 3 switches and is an odd function of ti...

Robust minimum time control of flexible structures

Ahatract-We investigate the existence and uniqueness of robust time-optimal control solutions of flexible structures for rest-torest motion. We show that several robust time-optimal control designs for flexible systems are equivalent to traditional nonrobust time-optimal controls for difirent systems. This equivalence implies that the robust time-optimal controllers must then have all the prope...

A Slewing Control Experiment for Flexible Structures

A hardware setup has been developed to study slewing control for flexible structures including a steel beam and a solar panel. The linear optimal terminal control law is used to design active controllers that are implemented in an analog computer. The objective of this experiment is to demonstrate and verify the dynamics and optimal terminal control laws as applied to flexible structures for la...

Intelligent Sliding Mode Control in Flexible Structures

Identification of parametric uncertainty for the control of flexible structures

Modern robust control techniques require a description of the uncertainty in the plant to be controlled. For lightly damped structures, the most appropriate description of the uncertainty is in terms of interval ranges for parameters such as natural frequencies and damping ratios. What is desired is an algorithm which can determine such interval ranges from noisy transfer function measurements ...