Low Noise Axial Fan Optimization for the Marine Corps Expeditionary Fighting Vehicle

Award Information
Agency: Department of Defense
Branch: Navy
Contract: M67854-08-C-0031
Agency Tracking Number: N073-163-0567
Amount: $99,843.00
Phase: Phase I
Program: SBIR
Awards Year: 2008
Solicitation Year: 2007
Solicitation Topic Code: N07-163
Solicitation Number: 2007.3
Small Business Information
11 Apollo Drive, Whippany, NJ, 07981
DUNS: 015334899
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Edward Bennett
 Director of Fluids Engineering
 (973) 326-9920
Business Contact
 William Marscher
Title: President
Phone: (973) 326-9920
Email: wdm@mechsol.com
Research Institution
The Marine Corps Expeditionary Fighting Vehicle (EFV) experiences excessive air handling unit noise and the cooling fan does not meet the requirements that have been established for its operation. During the past fifteen years, substantial progress has been made in noise mitigation through the use of computational fluid mechanics (CFD). In particular, the automotive industry has invested millions of dollars in engine cooling systems in order to provide more quiet fans that will go in their automobiles. A major technique that has been applied to the rotating blades of fan systems in order to suppress noise is the technique of “sweeping” the blades. MSI proposes to use a swept rotor blade in order to suppress the noise of the EFV fan. In order to maximize prototype development, MSI will utilize new aero-acoustic software that when coupled to CFD will predict the sound levels produced by a rotating blade row. Traditionally, designs have been performed using CFD and FEA, and then been subjected to experimentation. MSI will use the aero-acoustic software to minimize fan noise along with specialized sound pressure level field testing to back up and confirm the analysis results.

* Information listed above is at the time of submission. *

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