Active Gravity Offloading System for Deployable Solar Array Structures, Phase I

Metadata Updated: May 2, 2019

Large, lightweight, deployable solar array structures have been identified as a key enabling technology for NASA with analysis and design of these structures being the top challenge in meeting the overall goals of the NASA Space Technology Roadmap. Deployment ground testing of these structures is a uniquely difficult task as the intent is to validate 0g performance and integrity in a 1g testing environment. Existing gravity offloading test support equipment use passive offloading in which offloader tracking is driven by the deployment of the array itself. This approach introduces strong coupling between the test article and the offloader equipment, which affects deployment dynamics and hence accuracy of the simulated 0g response. ATA Engineering proposes to improve existing gravity offloader equipment through the development of an actively controlled system that minimizes the mechanical coupling between the test array and the offloader system. This active system will make use of position sensors to provide data for necessary corrective action as well as analytical models of the offloader and test article to provide predictive capabilities. When paired with actuators on the offloader system, the combined predictor-corrector system will substantially improve ground test 0g simulations. Phase I of this SBIR project will demonstrate increased realism of 0g test conditions by producing demonstration hardware that incorporates the suite of sensors and actuators with an analytical model of the offloader system. In Phase II, an active offloader system will be designed, built, and used to test a state-of-the-art solar array system.

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Public: This dataset is intended for public access and use. License: U.S. Government Work

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Metadata Created Date August 1, 2018
Metadata Updated Date May 2, 2019

Metadata Source

Harvested from NASA Data.json

Additional Metadata

Resource Type Dataset
Metadata Created Date August 1, 2018
Metadata Updated Date May 2, 2019
Publisher Space Technology Mission Directorate
Unique Identifier TECHPORT_33202
Maintainer Email
Public Access Level public
Bureau Code 026:00
Metadata Context
Metadata Catalog ID
Schema Version
Catalog Describedby
Datagov Dedupe Retained 20190501230127
Harvest Object Id 131699af-ba24-4bca-b58b-71ca76eb5a52
Harvest Source Id 39e4ad2a-47ca-4507-8258-852babd0fd99
Harvest Source Title NASA Data.json
Data First Published 2015-12-01
Homepage URL
Data Last Modified 2018-07-19
Program Code 026:027
Source Datajson Identifier True
Source Hash 84c89497dc51ee7e09c551ce26cadf428dba7f1f
Source Schema Version 1.1

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