NASA SBIR 2007 Solicitation


PROPOSAL NUMBER: 07-1 A2.04-9327
SUBTOPIC TITLE: Aeroelasticity
PROPOSAL TITLE: Nonlinear Aerodynamic ROM-Structural ROM Methodology for Inflatable Aeroelasticity in Hypersonic Atmospheric Entry

SMALL BUSINESS CONCERN (Firm Name, Mail Address, City/State/Zip, Phone)
ZONA Technology, Inc.
9489 E. Ironwood Square Drive
Scottsdale, AZ 85258 - 4578
(480) 945-9988

PRINCIPAL INVESTIGATOR/PROJECT MANAGER (Name, E-mail, Mail Address, City/State/Zip, Phone)
Danny D. Liu
9489 E. Ironwood Square Dr.
Scottsdale, AZ 85258 - 4578
(480) 945-9988

Expected Technology Readiness Level (TRL) upon completion of contract: 4 to 5

TECHNICAL ABSTRACT (Limit 2000 characters, approximately 200 words)
ZONA Technology proposes to develop an innovative nonlinear structural reduced order model (ROM) - nonlinear aerodynamic ROM methodology for the inflatable aeroelasticity of a clamped modeled ballute system. The proposed ROM-ROM methodology tightly couples a nonlinear-FEM based structural ROM with CFD based neural-net aerodynamic ROM to achieve a high computational efficiency. Indeed, the computing time for a typical wing flutter/LCO analysis is reduced from hours (direct) to minutes (ROM-ROM). The structural ROM enables a seamless time-integration of the ROM-ROM and could be coupled with other aerodynamic ROM methods like Volterra or POD. A time-accurate GasKinetic BGK method (BGKX) is adopted to generate the aerodynamic ROM for rarefied hypersonic unsteady aerodynamics/aeroelasticity applications to a ballute in atmospheric entry. With a natural boundary condition, BGKX is superior to continuum methods for unsteady flow simulations, and unified in transition to continuum flow regimes covering the peak dynamic pressure range in Earth/Martian entries. It can provide flow pressures and heat flux in one step. In Phase I, we will consider both a 2D membrane-on-wedge system and a modeled ballute system and investigate their static aeroelasticity as well as the feasibility/efficiency of the ROM-ROM approach for their dynamic aeroelastic responses (flutter/LCO). These capabilities are necessary for the development of inflatable aeroelasticity in NASA space program.

POTENTIAL NASA COMMERCIAL APPLICATIONS (Limit 1500 characters, approximately 150 words)
With the ROM-ROM methodology fully developed in Phases I/II, ZONA will have in place an efficient nonlinear aeroelastic tool (called NANSI) that could support NASA for its space program in entry Ballute design among the following - NASA could direct aeroelastic applications to the aeroassist/aerocapture inflatable space vehicles such as various Ballute designs, and many innovative inflatable vehicle design concepts for civilian aerospace and aeronautical purposes.
- NASA could use ROM-ROM/NANSI technology to support its nonlinear aeroelastic programs for: i) transonic transport, morphing wing and high altitude airship/airframe designs; ii) launch vehicles for aerothermoelasticity of reusable TPS; iii) compliment various flight testing programs at Dryden; iv) extend it to turbomachinery aeroelasticity methodology at Glenn.
- NASA could adopt its aerodynamic ROM methodology or the proposed one-step BKGX-based ROM for rapid ROM-ROM aerothermodynamic/aerothermoelastic applications.
- Potential NASA customers include LaRC, ARC, Dryden and Glenn.

POTENTIAL NON-NASA COMMERCIAL APPLICATIONS (Limit 1500 characters, approximately 150 words)
ZAERO is the flagship software of ZONA supporting aeroelasticity/aeroservoelasticity technology of the aerospace industry worldwide. The developed nonlinear NANSI module will be merged into ZAERO, and it should share ZAERO existing market. Potential applications of NANSI falls into the following:
- Rapid flutter/LCO analysis by ROM-ROM can support many ongoing ZONA projects with industry including HALE (Boeing), Sensorcraft /OFW (Northrop Grumman), and the Streamline Store Configurations program (LM Aero/ AFRL/ Eglin AFB).
- Support many current new designs in civil transports, inflatable airships, sensorcraft, morphing aircraft, micro aerial vehicles (MAV), etc. The unique feature of the structural ROM and ROM-ROM methodology can render NANSI a popular software for its preferred expediency in nonlinear aeroelasticity analysis.
- Aerodynamic ROM is a computationally efficient tool for CFD-based (e.g., FUN3D, BGKX) aerodynamic/aerothermodynamic simulation.
- Potential customers/users of ROM-ROM/NANSI should include engineering, design/analysis and R&D arms of AF/DoD, defense/civilian aerospace industries.

NASA's technology taxonomy has been developed by the SBIR-STTR program to disseminate awareness of proposed and awarded R/R&D in the agency. It is a listing of over 100 technologies, sorted into broad categories, of interest to NASA.

Controls-Structures Interaction (CSI)
Launch and Flight Vehicle
Simulation Modeling Environment
Structural Modeling and Tools

Form Generated on 09-18-07 17:50