Accession Number : ADA330548

Title :   Interface-Driven Multidisciplinary Design of Large-Scale Aircraft Structures.

Descriptive Note : Final rept. 2 Dec 95-1 Dec 96,

Corporate Author : APPLIED RESEARCH ASSOCIATES INC RALEIGH NC

Personal Author(s) : Oakley, David R. ; Rhodes, Graham S. ; Kruger, Lonny B.

PDF Url : ADA330548

Report Date : FEB 1997

Pagination or Media Count : 42

Abstract : This report presents Phase I research to develop an Interface-Driven Design Manager (IDM) that greatly reduces the design cycle time for affordable composite aircraft. The IDM represents a first attempt to fully integrate powerful new interface element and 3-D interactive graphics technology into a single design environment to automate the assembly and analysis of multicomponent global-local models for faster, more accurate composite airframe design. These emerging technologies have the potential for making multidisciplinary design optimization of large-scale composite structures practical and for providing new levels of design automation that are currently not possible. The IDM provides a graphical environment for rapidly assembling global-local models, as well as other complex multicomponent airframe models, from pre-meshed 'stock' components stored in a relational database, without concern for mesh compatibility. The IDM enables the designer to automatically insert components or regions with a highly refined mesh into the coarse mesh of a global model using interface elements. This provides two substantial benefits: (1) detailed local models can be used without remeshing the entire structure thereby substantially reducing the associated engineering cost; and (2) higher accuracy can be achieved in critical regions without substantial increases in computational cost. Both of these benefits make it practical to use higher-fidelity models earlier in the design cycle so that primary structures which are truly optimized for the application of affordable composites are achieved.

Descriptors :   *COMPUTER AIDED DESIGN, *INTERACTIVE GRAPHICS, *AIRCRAFT DESIGN, COMPUTATIONS, COMPATIBILITY, MESH, AIRCRAFT MODELS, AERONAUTICAL ENGINEERING, COMPOSITE AIRCRAFT.

Subject Categories : Military Aircraft Operations
      Computer Programming and Software

Distribution Statement : APPROVED FOR PUBLIC RELEASE