99--TECHNOLOGY TRANSFER OPPORTUNITY REDUCED-ORDER MODELS FOR EFFICIENTCOMPUTATIONAL ANALYSIS OF COMPLEX SYSTEMS: LAR-17325

Synopsis: NASA Langley Research Center in Hampton, VA solicits inquiries from companies interested in obtaining license rights to commercialize, manufacture and market the following technology. License rights may be issued on an exclusive or nonexclusive basis and may include specific fields of use. NASA provides no funding in conjunction with these potential licenses. THE TECHNOLOGY: Scientists at NASA Langley Research Center have developed unsteady aerodynamic Reduced- Order Models (ROMs) that significantly improve the computational efficiency compared to traditional analyses of aeroelastic and other complex and unsteady systems. Traditional methods rely on the repetitive use of aeroelastic computational fluid dynamics (CFD) codes and the iteration between the structural and nonlinear aerodynamic models of the aeroelastic CFD code for predicting the aeroelastic response of flight vehicles. This is very time consuming and computationally expensive. The new ROMs are quite different from the traditional aeroelastic analysis tools and enable the computational aeroelastic analysis of flight vehicles at a fraction of the time and cost. Starting with an aeroelastic model consisting of a CFD grid and structural mode shapes, NASA Langleys new analysis procedure is to excite all of the modes simultaneously in just one execution of the CFD code and then computing the unsteady aerodynamic responses of all of the structural modes. These responses are then processed through a NASA Langley-developed set of algorithms, yielding a simplified mathematical model in state-space form. The state-space forms of the aeroelastic and structural models are combined, and a new method computes matched-point solutions. Another new method enables simultaneous computation of the static and dynamic responses. U.S. patent 8,060,350 To express interest in this opportunity, please respond to [email protected] with the title of this Technology Transfer Opportunity as listed in this FBO notice and your preferred contact information. Please also provide the nature of your interest in the technology along with a brief background of your company. For more information about licensing other NASA-developed technologies, please visit the NASA Technology Transfer Portal at http://technology.nasa.gov/ . These responses are provided to members of NASA Langleys Office of Strategic Analysis and Business Development OSACB for the purpose of promoting public awareness of NASA-developed technology products, and conducting preliminary market research to determine public interest in and potential for future licensing opportunities. If direct licensing interest results from this posting, OSACB will follow the required formal licensing process of posting in the Federal Register. No follow-on procurement is expected to result from responses to this Notice.