Multiple delay model approach applied to the AIAA 1992 controls design challenge

In this paper, the Multiple Delay Model and Multiple Design Point (MDM/MDP) approach is applied to the AIAA 1992 Controls Design Challenge. Design goals of the flight control system are presented with standard quadratic performance indices, and linear control laws of constant feedback gains are obtained numerically with parameter optimization. Robustness against uncertainties is guaranteed by giving appropriate multiple delay models, and robustness against changing dynamics is obtained by selecting multiple design points. Trade-offs between control performance and robustness are conducted with multiple delay models. Simple performance indices introduce reasonable feedback control laws. Realistic control laws are derived from the analytical results. Time responses of the two given flight missions and performances at four evaluation points demonstrate feasibility of the simple constant gain feedback control.