Interface-Driven Multidisciplinary Design of Large-Scale Aircraft Structures

Period of Performance: 04/30/1997 - 04/30/1999


Phase 2 SBIR

Recipient Firm

Applied Research Assoc., Inc.
4300 San Mateo Blvd. NE, Suite A-220
Albuquerque, NM 87110
Principal Investigator

Research Topics


An Interface-Driven Design Manager (IDM) will be developed with the cornerstone features needed to greatly reduce the design cycle time for large-scale composite aircraft. The IDM will combine emerging interface element technology with a powerful new object-oriented Adaptive Modeling LanguageTM (AML) to form a fully associative design environment with the features needed to realistically apply composites to primary structures. The IDM virtual design environment will allow the user to rapidly build parametric, fully associative conceptual and preliminary design aircraft models from a hierarchical data base of 'stock' AML objects. This will significantly reduce the engineering time and enable different design concepts (generated by the designer or an optimizer) to be easily and quickly evaluated. The IDM willenable the designer to graphically identify critical regions of stress concentration, and it will automatically create new refined meshes for each region using interface elements. This will make it practical to use higher-fidelity models earlier in the design cycle so that surfaces and primary structures which are truly optimized for the application of affordable composites are achieved. The IDM will also feature a seamless interface to the commercial aerostructural optimization code ASTROS so the designer can easily optimize the aircraft structure for minimum weight.