Methods for and results from the design and evaluation of a digital flight control system (DFCS) for a CH-47B helicopter are presented. The DFCS employed proportional-integral control logic to provide rapid, precise response to automatic or manual guidance commands while following conventional or spiral-descent approach paths. It contained altitude- and velocity-command modes, and it adapted to varying flight conditions through gain scheduling. Extensive use was made of linear systems analysis techniques. The DFCS was designed, using linear-optimal estimation and control theory, and the effects of gain scheduling are assessed by examination of closed-loop eigenvalues and time responses.


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    Title :

    Modern Digital Flight Control System Design for VTOL Aircraft


    Contributors:

    Publication date :

    1979


    Size :

    250 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




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