Physics-Based Pneumatic Hammer Instability Model

Award Information
Agency:
National Aeronautics and Space Administration
Branch
n/a
Amount:
$599,763.00
Award Year:
2007
Program:
SBIR
Phase:
Phase II
Contract:
NNM07AA21C
Award Id:
78010
Agency Tracking Number:
053964
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
100 Marquette Road,Suite 110, Jupiter, FL, 33458
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
Philip Pelfrey
Principal Investigator
(561) 746-3317
PPelfrey@fttinc.com
Business Contact:
Lloyd Mazer
Business Official
(561) 746-3317
lmazer@fttinc.com
Research Institution:
n/a
Abstract
The objective of this project is to develop a physics-based pneumatic hammer instability model that accurately predicts the stability of hydrostatic bearings operating in a turbulent, compressible fluid. In phase 2, the rig will be fabricated and assembled, design of experiment will be executed. The empirical data will be used to determine if a particular variable, or input parameter, was a contributor to pneumatic hammer instability. If not, the variable is eliminated. If the variable is determined to be a contributor, it is non-dimensionalized and included in the equations of motion to develop a physics-based stability criteria. The resulting criteria will then be validated using test data. If the criteria is not validated, a gap assessment will be completed and the process is repeated. Once the criteria is validated, it is implemented.

* information listed above is at the time of submission.

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