Integrated Inflatable Ballute for Planetary Entry

Award Information
Agency: National Aeronautics and Space Administration
Branch: N/A
Contract: NNX10CC55P
Agency Tracking Number: 094557
Amount: $99,916.00
Phase: Phase I
Program: SBIR
Awards Year: 2010
Solicitation Year: 2009
Solicitation Topic Code: X9.02
Solicitation Number: N/A
Small Business Information
CFD Research Corporation
215 Wynn Drive, 5th Floor, Huntsville, AL, 35805-1944
DUNS: 185169620
HUBZone Owned: N
Woman Owned: Y
Socially and Economically Disadvantaged: N
Principal Investigator
 Essam Sheta
 Principal Investigator
 (256) 726-4869
Business Contact
 Silvia Harvey
Title: Document Specialist
Phone: (256) 726-4858
Research Institution
CFDRC and TRLA are proposing to develop, design, and test a mass-optimized isotensoid inflatable structure that makes maximum utilization of materials in providing tailored stiffness and rigidity for hypersonic entry vehicles. The proposed inflatable structure is a hybrid isotensoid pressure restraint employing an impervious cloth-reinforced barrier structure enveloped by an integrated array of high-tenacity tendons. The segregation of material functions provides greater design flexibility to meet stiffness and thermal protection requirements, while the external grid of cordage tendons provides mass- and load pathway-optimized containment of the structure's global pressure loads. The focus of the Phase I effort is to develop and demonstrate the isotensoid inflatable structure, complete with thermal protection hardware and load bearing attachment fittings for guidance and control hardware. The tendon materials will be evaluated for their strength at high temperatures while cloth structural materials will be evaluated for their stiffness and thermal insulation properties to produce a truly multifunctional structural enclosure. Integrated fluid-structure-thermal simulations will be conducted with CFDRC's validated tools to provide insight into the aerodynamic, material stress and localized heating effects on the model and to verify/optimize the proposed design. Phase II activities will focus on fabricating and testing a prototype of the proposed inflatable structure to validate the design robustness and capability for larger payload masses. Pre and post testing multidisciplinary simulations will be conducted to verify and optimize the design. Additional simulations will be conducted for verification under exact flight conditions.

* information listed above is at the time of submission.

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