Cased Telescoped Ammunition Smart Seal Development

Award Information
Agency:
Department of Defense
Branch
Army
Amount:
$119,986.00
Award Year:
2002
Program:
SBIR
Phase:
Phase I
Contract:
DAAE30-02-C-1029
Agency Tracking Number:
A012-1736
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
Mechanical Solutions, Inc.
1719 Rt. 10 East, Suite 205, Parsippany, NJ, 07054
Hubzone Owned:
N
Socially and Economically Disadvantaged:
N
Woman Owned:
N
Duns:
015334899
Principal Investigator:
William Kelly
Senior Staff Engineer
(973) 326-9920
wjk@mechsol.com
Business Contact:
William Marscher
President
(973) 326-9920
wdm@mechsol.com
Research Institution:
n/a
Abstract
"Cased Telescoped Ammunition (CTA) has the potential to allow use of lighter ammunition-feed swing chambers, and more efficient ammunition storage, which will move the Army toward the lighter vehicles required by the Future Combat Systems (FCS) program.Technical obstacles have blocked the widespread application of CTA, particularly the sealing of propellant gases at the fore and aft of the cartridge during firing. MSI will extrapolate its experience in bioengineering applications with Nitinol shapememory alloys and other smart materials, and in design of seals for turbomachinery including aircraft gas turbine engines, using advanced computer-aided design analytical tools. In order to provide a tool for designing rings or sleeves which result inenhanced and reliable sealing, the coupled engineering problem will be attacked calculating the turbulent viscous leakage flow, acoustics, transient heat transfer, contact elasticity, and hyper-elastic (in the case of Nitinol) response. Physicalproperties required for the selected material (e.g. strain rate sensitivity of elastic modulus) will be verified by special testing by the material supplier. Three different conceptual prototypes will be manufactured to confirm their ability to take onconforming shapes, under elastic and/ or thermal loading, to enforce forward and aft sealing in a prototype 105 mm cartridge. Smart materials, particularly shape memory alloys, are applicable in many mil

* information listed above is at the time of submission.

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