Rotary Live

Award Information
Agency:
Department of Defense
Branch
Navy
Amount:
$70,000.00
Award Year:
2003
Program:
SBIR
Phase:
Phase I
Contract:
N68335-03-C-0159
Award Id:
64803
Agency Tracking Number:
N031-0159
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
200 Boston Avenue Suite 1000, Medford, MA, 02155
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
786127522
Principal Investigator:
Marthinus van Schoor
President
(781) 306-0609
tienie@mide.com
Business Contact:
Petra Botha
Chief Financial Officer
(781) 306-0609
petra@mide.com
Research Institution:
n/a
Abstract
A rotary amplified liquid proof-mass-damper is proposed. The proposed innovation is based on Bell Helicopter's LIVE, Liquid Inertial Vibration Isolator (LIVE). LIVE is currently installed on the Bell 427 helicopter. The proposed rotary version, thushave legacy and support of a rotary wing aircraft manufacturer. The low-weight, low-cost proposed damper will reduce drive-shaft deflections. In Phase I, Mid¿ will work with Bell Helicopter to ensure that the solution can be installed on legacy aircraft.Active modification of the isolation frequency will also be investigated to allow the solution to be used in non-constant speed shaft applications. This work will build on Bell Helicopter and Mid¿'s Dynamically Tuned Airframe Structures (DTAS) Program.This program was funded by the US Army.In Phase I, Mid¿ will develop and evaluate the effectiveness of the proposed damper to minimize drive-shaft deflections. In addition to the reduction in shaft deflection, Mid¿ will also consider weight, cost, minimal aircraft modifications forinstallation, and maintainability/repairability. Phase I will also assess the effectiveness of the design on both in-use shafting and supercritical shafting.In Phase II, Mid¿ will develop a prototype and evaluate broadest range of drive-shaft design applications to demonstrate the flexibility of the proposed system. Tests will be used to quantify the effectiveness of damping systems and to improve the damperdesign. Benefits:A low-cost, low-weight rotary damper will reduce maintenance costs, increase equipment availability, increase safety and reduce structural and human fatigue.Commercial Applications:There is a current and significant interest in the automotive and power transmission industry to reduce vibrations induced by rotary components.

* information listed above is at the time of submission.

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