DISPOSABLE-TETHER PAYLOAD DEPLOYMENT SYSTEM

Award Information
Agency: National Aeronautics and Space Administration
Branch: N/A
Contract: N/A
Agency Tracking Number: 639
Amount: $497,422.00
Phase: Phase II
Program: SBIR
Awards Year: 1984
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
Energy Science Laboratorys Inc
11404 Sorrento Valley Rd., San Diego, CA, 92121
DUNS: N/A
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Joseph A. Carroll
 () -
Business Contact
Phone: () -
Research Institution
N/A
Abstract
THIS PROJECT ANALYZES A NOVEL USE OF A SHUTTLE-BASED TETHER SYSTEM TO RELEASE A PAYLOAD INTO ORBIT WITH MORE ENERGY THANTHE SHUTTLE OR TO CAUSE CONTROLLED REENTRY OF AN EXTERNAL TANK. COMPARED TO CONCEPTS ANALYZED TO DATE, THIS CONCEPT RADICALLY REDUCES THE SYSTEM MASS AND VOLUME AND THE TIME REQUIRED FOR TETHER OPERATIONS BY USING LOW-TENSION DEPLOYMENT AND DISPOSABLE TETHERS. LOW DEPLOYMENT TENSION CAUSES NEAR-HORIZONTAL DEPLOYMENT FOLLOWED BY A PENDULUM SWING THROUGH THE VERTICAL. AFTER PAYLOAD RELEASE, THE TETHER IS ITSELF RELEASED. ELIMINATING RETRIEVAL (AND THE ASSOCIATED MOTORS, BATTERIES, ETC.) SIMPLIFIES THE DEPLOYERAND MAY ALLOW IT TO TRAVEL AS A "HITCH-HIKER". PHASE I WORKPURSUES SIX AREAS OF CONCEPT FEASIBILITY: (1) CONTROL STRATEGIES FOR PRECISE DEPLOYMENT AND RELEASE, (2) CHARACTERIZATION OF OPERATIONAL IMPACTS AND CONSTRAINTS, (3) INITIAL ANALYSES OF SYSTEM FAILURE MODES AND SAFETY ISSUES, (4) FEASIBILITY ANALYSES OF PROMISING EARLY APPLICATIONS, (5) IDENTIFICATION OF PAYLOAD BAY LOCATIONS FOR THE DEPLOYER, AND (6) FABRICATION, TESTING, AND ANALYSISOF A SPECIFIC DEPLOYER CONCEPT.

* information listed above is at the time of submission.

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