FY17 GRC: Magnetic Gearing - Establishing Core Competency

Metadata Updated: November 12, 2020

Gears are machine components that allow speed and torque to be scaled. In spacecraft, roving vehicles, and aircraft, they are commonly used to connect a small, efficient motor to a load that requires slower speed and higher torque (e.g. a propeller, wheel, or drill). Contact between mating gear teeth causes several problems, including energy loss, noise generation, tooth wear, and tooth cracking. Lubricant is also required to reduce friction, but it tends to evaporate in low atmosphere or solidify at low temperature. This poses engineering challenges for Space systems, where gearing often needs to be protected in an atmospheric chamber. It was recognized over 100 years ago that magnets could be used to prevent gear tooth contact, thereby eliminating all of the aforementioned issues. Magnetic gearing technology evolved slowly, because magnets were relatively weak and their magnetic energy was not efficiently utilized. In the last 10 years, however, this technology has advanced exponentially. Although wind turbines have been the primary application, the lightest weight designs have been developed for automotive and robotic applications. The overarching goal for this project is to establish competency in magnetic gearing technology for US aerospace applications.

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Metadata Created Date November 12, 2020
Metadata Updated Date November 12, 2020

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Harvested from NASA Data.json

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Resource Type Dataset
Metadata Created Date November 12, 2020
Metadata Updated Date November 12, 2020
Publisher Space Technology Mission Directorate
Unique Identifier Unknown
Identifier TECHPORT_93848
Data First Published 2018-12-01
Data Last Modified 2020-01-29
Public Access Level public
Bureau Code 026:00
Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
Metadata Catalog ID https://data.nasa.gov/data.json
Schema Version https://project-open-data.cio.gov/v1.1/schema
Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
Homepage URL https://techport.nasa.gov/view/93848
Program Code 026:027
Source Datajson Identifier True
Source Hash e9b14be56e6433b57d95077819e85a0d74520c1b
Source Schema Version 1.1

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