OPTIMAL DESIGN OF FUSELAGE STRUCTURES

摘要

There is an industry-wide effort to producernaircraft designs that are more competitive inrnterms of performance and cost, and to do sornwith a decrease in development time. To achievernthese goals for "Faster, Better, and Cheaper"rnsolutions, the preliminary stage of aircraftrndesign is evolving to include greater detail, andrngreater consideration for the interaction ofrnmultiple disciplines. The dream of fullyrnintegrated processes that allow for the creationrnof optimal designs is slowly, but most assuredly,rnbecoming a reality.rnThis paper introduces a methodology forrnthe optimal design of fuselage structures for usernin an MDO environment. The process integratesrna finite element package (NASTRAN or ASAS),rnin-house pre- and post- processorsrn(UPDATEPROPS and RESERVE), andrnvisualisation (PATRAN) techniques to automaternthe sizing of the fuselage skins and stringers.