Logistics Reduction: Multipurpose Crew Transfer Bag

Metadata Updated: July 17, 2020

The Advanced Exploration Systems (AES) Logistics Reduction (LR) project Multipurpose Cargo Transfer Bag (MCTB) project focuses on repurposing cargo transfer bags for on-orbit outfitting. The MCTB task converts cargo transfer bags into useful crew items or life-support augmentation on-orbit after they have provided their primary logistics function. Reuse of the MCTB logistics carriers prevents the need to fly additional items. By repurposing MCTBs, dedicated crew items do not have to be launched and the overall launch mass is decreased. For non-LEO missions, the vehicle interior habitat volume[HTML_REMOVED]will be relatively fixed. MCTBs will enable this volume to be used more effectively through reuse and rearrangement of logistical components. MCTBs reduce habitation trash generation rates.The MCTB team worked with the ISS Vehicle Office and JSC Acoustics Office to determine the optimal material layup of an acoustic MCTB to absorb the sound of the ISS treadmill. Located in Node 3 on ISS, the treadmill reaches the noise hazard limit of 85 dBA when operated at high speeds. As such, the treadmill has been added to the Noise Hazard Inventory, and hearing protection has become mandatory when the treadmill is used above 10 mph per the Noise Constraint Flight Rule. An acoustic MCTB was[HTML_REMOVED]designed with a material layup specifically designed to absorb the sound generated by the treadmill.[HTML_REMOVED][HTML_REMOVED]Four Acoustic MCTBs were designed, fabricated, and delivered in the first half of 2015 and launched to ISS on Orbital[HTML_REMOVED]s fourth cargo resupply mission (Orb-4) in December 2015.[HTML_REMOVED]After serving their primary purpose of carrying logistics, the MCTBs was[HTML_REMOVED]reconfigured to flat panels and attached in a dual layer to two walls in proximity to the treadmill.[HTML_REMOVED] They reduced the treadmill noise by 2-3 dBA and the general Node acoustic levels even when the treadmill was not being used. The Acoustic MCTB ISS technology demonstration started in September 2016 and will continue until the MCTBs[HTML_REMOVED] surfaces become soiled and visually unacceptable[HTML_REMOVED]as determined by crew preference.[HTML_REMOVED] A continuation of the MCTB development is tentatively planned for FY19 for a low-mass crew quarters.

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Metadata Created Date August 1, 2018
Metadata Updated Date July 17, 2020

Metadata Source

Harvested from NASA Data.json

Additional Metadata

Resource Type Dataset
Metadata Created Date August 1, 2018
Metadata Updated Date July 17, 2020
Publisher Space Technology Mission Directorate
Unique Identifier TECHPORT_93176
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
Harvest Object Id d7eba5ec-e0eb-43bd-ac89-9bc00db16b9a
Harvest Source Id 39e4ad2a-47ca-4507-8258-852babd0fd99
Harvest Source Title NASA Data.json
Data First Published 2018-09-01
Homepage URL https://techport.nasa.gov/view/93176
Data Last Modified 2020-01-29
Program Code 026:027
Source Datajson Identifier True
Source Hash 7741c6b7cd6d1206f171d2d5418311fe4347e249
Source Schema Version 1.1

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