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Integrated software toolbox for aeroelastic modeling and dynamic stability…

Award Information

National Aeronautics and Space Administration
Award ID:
Program Year/Program:
2001 / STTR
Agency Tracking Number:
Solicitation Year:
Solicitation Topic Code:
Solicitation Number:
Small Business Information
Scientific Systems Company, Inc
500 West Cummings Park - Ste 3000 Woburn, MA 01801-
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Woman-Owned: No
Minority-Owned: Yes
HUBZone-Owned: No
Phase 1
Fiscal Year: 2001
Title: Integrated software toolbox for aeroelastic modeling and dynamic stability analysis of a Generic Hypersonic Vehicle
Agency: NASA
Contract: N/A
Award Amount: $100,000.00


Aeroservoelastic (ASE) modeling and vehicle stability analysis are twomajor concerns in the accurate prediction of flight characteristics ofgeneric hypersonic vehicles (GHVs). We propose to develop an ASE modelingand vehicle stability analysis toolkit. System Identification (SI)-basedblack box models of CFD solvers is the primary focus in Phase I.Bifurcation and Chaos Theory Methodology (BACTM) is the main tool fornonlinear stability analysis. The proposed software consists of a libraryof ASE model structures, SI routines, and BACTM modules. The software willenhance the capabilities of STARS code currently in use at NASA Dryden.Phase I work involves: (1) acquisition of GHV models, STARS training dataand code, (2) development of ASE modeling toolkit for GHV, (3) nonlinearanalysis of ASE, (4) trajectory optimization and GHV flight stabilityanalysis, (5) integration of software modules into STARS, and (6) finalreport and software delivery. Specific problems addressed include nonlinearflutter analysis, effect of modeling uncertainties, nonlinear flightdynamics in the presence of inertia coupling and unsteady effects. Prof.Lutze of VPI and Prof. Klein of JIAFS/GWU will serve as subcontractors inthis project. ~000063 ~

Principal Investigator:

Ravi Prasanth

Business Contact:

Raman Mehra
Small Business Information at Submission:

Scientific Systems Company, Inc.
500 West Cummings Park, Suite 3000 Woburn, MA 01801

Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Research Institution Information:
Virginia Tech
Virginia Poly. Tech & State Univ
Blacksburg, VA 24061
Contact: H. T. Hurd
Contact Phone: (540) 231-5283
RI Type: Nonprofit college or university