APPLICATION OF FDI TO A NONLINEAR BOEING-747 AIRCRAFT

This paper presents a fault detection and isolation (FDI) filter design for a linearized longitudinal dynamics of a Boeing 747 series 100/200. The FDI filter design is based on fundamental problem of residual generation (FPRG). In our case the fault detection filter is sensitive to elevator and stabilizer faults. Three types of actuator failures are considered in this paper: lock failure, loss in effectiveness and a float failure. The FDI filter design is based on open loop linearized model and applied in the closed loop to a high fidelity nonlinear model of the aircraft.

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