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Two LQ-based MIMO controllers (LQG and LQI architectures) for lateral inner loop flight control for a large BlendedWing Body (BWB) passenger aircraft pre-design model are presented. The main control goals are Dutch roll mode damping, coordinated turn, and roll response shaping. An open loop analysis shows that traditional SISO design faces fundamental limitations, so both controller variants are designed...
Robust control design for complex flexible structures involves many consecutive essential steps. Additionally, many design parameters arise, which turn design optimization into a cumbersome and difficult task. This paper presents a comprehensive robust ℋ∞-optimal control design methodology for this class of systems. It relies on a pragmatic approach: The control engineer produces an initial design...
One essential task in control system design is the optimal selection of inputs and outputs (I/O). In this paper a new concept for solving the I/O selection problem is proposed. It is based on normalized comparison of LQG closed loops, which are designed for each potential actuator/sensor separately. The LQG controller is iteratively tuned to obtain a prescribed and fixed value of a suitable system...
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