Optimization of Partial Authority Automatic Flight Control Systems for Hover/Low-Speed Maneuvering in Degraded Visual Environments

摘要

A ground-based piloted simulation study of a Partial Authority Flight Control Augmentation concept for the UH-60 Black Hawk helicopter was performed. Two command model gain sets were synthesized for a model-following, attitude-command attitude-hold (ACAH) control law: 1) a gain set optimized for Level 1 handling qualities with respect to the ADS-33D handling qualities specification, and 2) a gain set optimized for minimum least-squares error between the open- and closed-loop stick- to-attitude frequency response. The resulting configurations were tested at both 10 and 15 percent stability augmentation system (SAS) authority levels. The standard UH-60A SAS was also evaluated for comparison purposes.