Vibration-Free Cooling Cycle Pump for Space Vehicles and Habitats

Award Information
Agency:
National Aeronautics and Space Administration
Branch
n/a
Amount:
$599,713.00
Award Year:
2007
Program:
SBIR
Phase:
Phase II
Contract:
NNM07AA25C
Award Id:
77787
Agency Tracking Number:
054682
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
200 Yellow Place, Rockledge, FL, 32955
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
175302579
Principal Investigator:
Daniel Mason
Principal Investigator
(321) 631-3550
dkm@mainstream-engr.com
Business Contact:
Michael Rizzo
Business Official
(321) 631-3550
mar@mainstream-engr.com
Research Institution:
n/a
Abstract
Mainstream Engineering Corporation completed the design of a high-speed pump for International Space Station (ISS) Environmental Control and Life Support Systems and future spacecraft and extraterrestrial outpost applications. Specifications for this pump were derived from an existing pump currently operating as part of the thermal control loop on the ISS. The design includes magnetic bearings so that a vibration-reducing control algorithm can be implemented. A digital controller was designed, which measured and reduced vibration-causing fluctuations in shaft displacement due to rotor unbalance in multiple axes. The controller was tested over an operating speed range of 600 to 7200 rpm with excellent results. The controller reduced mean shaft displacement by 71% over the entire operating range, and reduced it by more than 80% at higher operating speeds where synchronous vibration was dominant. In Phase II the magnetic bearing equipped cooling loop pump designed in Phase I will be fabricated and tested. Mainstream will demonstrate the added efficiency, reliability, and low vibration of the system as compared with the existing pump. The pump assembly will undergo vibration characterization testing with support from Marshall Space Flight Center.

* information listed above is at the time of submission.

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