R. Kelm, M. Läpple, M. Grabietz

Accurate weight prognosis without powerful software tools is becoming an almost hopeless task. In the pre-development phase of modern transport aircraft the geometry is not fixed and many parameter studies have to be performed. The wing of the plane has to be optimized to minimize the operating costs. The wing weight is directly influenced by geometrical changes and the materials used. A precise and reliable wing weight prognosis method is the basis for the assessment of the viability of a plane. The software tool FAME-W (Fast and Advanced Mass Estimation of Wings) is described with emphasis on the multidisciplinary character of the computer approach. In the pre-development phase of an aircraft only limited knowledge of the design is available. For a qualified wing weight estimation the dimensioning load cases, the structural layout and other essential information must be quantified. To consider all important physical effects in an acceptable time, an analytical/numerical algorithm based on the classical theory of multicellular shells, beam and structural instability theory extended by the calculation of special effects like warping was chosen. The aerodynamics are taken into account by an integrated software module. A module for the calculation of the structural deformation allows the dimensioning of the elastic structure including the recalculation of the aerodynamic loads.

Workshop - Entwicklungswerkzeuge zur Flugzeugauslegung; Hamburg-Finkenwerder; 1995

Book Chapter

englisch

21,0 x 29,7 cm, 11 Seiten

DGLR-Publikationen, 1995, Workshop - Entwicklungswerkzeuge zur Flugzeugauslegung; 1995; Deutsche Gesellschaft für Luft- und Raumfahrt - Lilienthal-Oberth e.V., Bonn

NA

Mit eigener Zählung

Bibliothek - Inhalt

1995