ABSTRACT
As computers become more powerful, engineers are applying an expanding number of design approaches to increasingly more challenging controls design tasks. The continued development of more powerful design and analysis procedures motivates the creation of a number of new software tools. Digital fly-bywire flight control systems require the ability to model systems as difference equations. Future vehicles, employing such features as relaxed static stability and extensive use of composite materials resulting in greater aeroservoelastic coupling, require comprehensive analysis and evaluation of these interacting phenomena. Structural-dynamic models are processed using model reduction methods to generate low-order models appropriate for the synthesis and analysis of flight control laws.
