{"project":{"acronym":"","projectId":9965,"title":"Hubless Flywheel with Null-E Magnetic Bearings, Phase I","primaryTaxonomyNodes":[{"taxonomyNodeId":10603,"taxonomyRootId":8816,"parentNodeId":10600,"level":3,"code":"TX03.2.3","title":"Advanced Concepts for Energy Storage","definition":"Advanced concepts for energy storage include solutions that could be transformational for aerospace applications, including electro-mechanical systems (e.g. flywheels) and solar-chemical systems based on in-situ resources.","exampleTechnologies":"Flywheel technologies including broad temperature range applications, advanced high-strength flywheel materials, superconducting bearing, solar energy stored as high-energy-density chemical fuels, superconducting magnetic energy storage, other non-chemical storage devices","hasChildren":false,"hasInteriorContent":true}],"description":"For space-born energy storage systems, the energy to weight ratio is extremely important. From this perspective, a hubless flywheel energy storage design is very advantageous since most of the flywheel energy is stored in its outer circumference, while the core significantly adds to the system weight. One of the problems with this design is that conventional active magnetic bearings are difficult to integrate into the overall system. We propose to utilize recently developed Null-E Magnetic Bearings instead, which appear to be better suited for the hubless topology. Their major advantages over active magnetic bearings include inherent stability at high rotational speeds, simplicity, low cost and lack of laminated components. At the same time, Null-E bearings deliver the desired combination of high load capacity, stiffness and low rotational losses. They can be designed to operate as entirely passive systems with no electronics or external power supplies, or as partially active systems, with some supplementary electronics. A combination of different modes is also possible, e.g. an active system at low speeds and passive at high. The proposed study includes electromagnetic design and analysis of Null-E bearings as well as research of composite material technologies suitable for the proposed design. ","startYear":2004,"startMonth":1,"endYear":2005,"endMonth":1,"statusDescription":"Completed","principalInvestigators":[{"contactId":366687,"canUserEdit":false,"firstName":"Patrick","lastName":"McMullen","fullName":"Patrick Mcmullen","fullNameInverted":"McMullen, Patrick","publicEmail":true,"nacontact":false}],"programDirectors":[{"contactId":206378,"canUserEdit":false,"firstName":"Jason","lastName":"Kessler","fullName":"Jason L Kessler","fullNameInverted":"Kessler, Jason L","middleInitial":"L","primaryEmail":"jason.l.kessler@nasa.gov","publicEmail":true,"nacontact":false}],"programExecutives":[{"contactId":215154,"canUserEdit":false,"firstName":"Jennifer","lastName":"Gustetic","fullName":"Jennifer L Gustetic","fullNameInverted":"Gustetic, Jennifer L","middleInitial":"L","primaryEmail":"jennifer.l.gustetic@nasa.gov","publicEmail":true,"nacontact":false}],"programManagers":[{"contactId":62051,"canUserEdit":false,"firstName":"Carlos","lastName":"Torrez","fullName":"Carlos Torrez","fullNameInverted":"Torrez, Carlos","primaryEmail":"carlos.torrez@nasa.gov","publicEmail":true,"nacontact":false}],"website":"","libraryItems":[],"transitions":[],"responsibleMd":{"acronym":"STMD","canUserEdit":false,"city":"","external":false,"linkCount":0,"organizationId":4875,"organizationName":"Space Technology Mission Directorate","organizationType":"NASA_Mission_Directorate","naorganization":false,"organizationTypePretty":"NASA Mission Directorate"},"program":{"acronym":"SBIR/STTR","active":true,"description":"
The NASA SBIR and STTR programs fund the research, development, and demonstration of innovative technologies that fulfill NASA needs as described in the annual Solicitations and have significant potential for successful commercialization. If you are a small business concern (SBC) with 500 or fewer employees or a non-profit RI such as a university or a research laboratory with ties to an SBC, then NASA encourages you to learn more about the SBIR and STTR programs as a potential source of seed funding for the development of your innovations.
The SBIR and STTR programs have 3 phases:
The SBIR and STTR Phase I contracts last for 6 months with a maximum funding of $125,000, and Phase II contracts last for 24 months with a maximum funding of $750,000 - $1.5 million.
Opportunity for Continued Technology Development Post-Phase II:
The NASA SBIR/STTR Program currently has in place two initiatives for supporting its small business partners past the basic Phase I and Phase II elements of the program that emphasize opportunities for commercialization. Specifically, the NASA SBIR/STTR Program has the Phase II Enhancement (Phase II-E) and Phase II eXpanded (Phase II-X) contract options.
Please review the links below to obtain more information on the SBIR/STTR programs.
Provides an overview of the SBIR and STTR programs as implemented by NASA
Provides access to the annual SBIR/STTR Solicitations containing detailed information on the program eligibility requirements, proposal instructions and research topics and subtopics
Schedule and links for the SBIR/STTR solicitations and selection announcements
Federal and non-Federal sources of assistance for small business
Search our complete archive of awarded project abstracts to learn about what NASA has funded
Still have questions? Visit the program FAQs
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