TRAILING WIRE ANTENNA ICING

Award Information
Agency:
Department of Defense
Branch
Navy
Amount:
$49,900.00
Award Year:
1987
Program:
SBIR
Phase:
Phase I
Contract:
n/a
Agency Tracking Number:
6229
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
Pda Engineering
2975 Red Hill Ave, Costa Mesa, CA, 92626
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
DR JOSEF E WUERER
(714) 540-8900
Business Contact:
() -
Research Institution:
n/a
Abstract
ISCE ACCUMULATION ON THE TRAILING WIRE ANTENNA WILL CHANGE ITS AERODYNAMIC TOW CHARACTERISTICS. IN GENERAL, IT CAUSES INCREASED DRAG, CHANGES THE DEPLOYED WIRE SHAPE AND CAN AFFECT THE DYNAMIC STABILITY OF THE CABLE. IF ICE BUILD-UP IS NOT CONTROLLED, IT CAN LEAD TO TENSION FAILURE OF THE WIRE AND/OR ALTER THE ELECTROMAGNETIC PERFORMANCE OF THE ANTENNA. THE PROBLEM IS PARTICULARLY SEVERE IN MARINE ENVIRONMENTS AND FOR MISSIONS REQUIRING A CONTINUOUS AIRCRAFT BANKING TURN SINCE THIS POTENTIALLY PROLONGS EXPOSURE TO SUPERCOOLED CLOUDS. THE PRIMARY THRUST OF THE PROPOSED PROGRAM IS TO DEVELOP A COMPUTATIONAL FRAMEWORK THAT PROPERLY ACCOUNTS FOR THE RELATIONSHIP BETWEEN ICE ACCUMULATION ON THE TRAILING WIRE AND THE WIRE TOWING DYNAMICS. VARIOUS TECHNIQUES FOR CONTROLLING ICE FORMATION WILL BE EVALUATED. EXPERIMENTAL PLANS WILL BE DEVELOPED TO DEMONSTRATE THE VALIDITY OF THE ANALYTICAL TOOLS AND THE EFFECTIVENESS OF ICE BUILDUP CONTROL TECHNIQUES.

* information listed above is at the time of submission.

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