{"project":{"acronym":"","projectId":10328,"title":"Integrated Component and System Analyses of Instabilities in Test Stands","primaryTaxonomyNodes":[{"taxonomyNodeId":10534,"taxonomyRootId":8816,"parentNodeId":10533,"level":3,"code":"TX01.1.1","title":"Integrated Systems and Ancillary Technologies","definition":"This area covers systems and technologies that provide additional launch vehicle and in-space propulsion functions, other than primary ascent or propulsion. These systems include both mechanical and propulsive systems.","exampleTechnologies":"For launch vehicles: Thrust vector control (TVC), main propulsion systems, reaction control systems (RCS), roll control systems (RoCS), separation motors, ullage settling motors, abort propulsion systems, propellant storage and transfer, nanocomposites, green propellants. For in-space propulsion: CubeSat propulsion, propellant management devices (PMDs), pressure regulation mechanisms, propellant thermal control systems, propellant vapor control systems, long-duration propellant-compatible materials, high-performance main engines, low-impulse attitude-control systems, propellant slosh control, deep-throttling precision lander engines","hasChildren":false,"hasInteriorContent":true}],"startTrl":4,"currentTrl":5,"endTrl":5,"benefits":"The commercial market for our product is very large and includes plants and industrial facilities such as nuclear power generation, chemical process plants etc. Recently, commercial space ventures ranging from space transportation systems (COTS) for the international space station (ISS), to low-cost satellite launch systems are getting interested in simulation tools capable of providing risk assessment of propulsion systems. The primary market for this product will be in the design and analysis of high-performance, high-reliability systems used for inherently transient operations in the nuclear and chemical process industry. Here characterizing the transient performance of the system is a critical safety issue and the availability of a well-validated, reliable predictive software tool can play an integral role in reducing costs and managing risk.
The integrated multi-level (system and component) simulation software resulting from this proposal would predict performance of liquid rocket propulsion systems and test facilities for rocket engines. The salient features of the framework include diagnosis of system anomalies/transients and prediction of system feedback and response to the transients. Our product addresses core needs of NASA in the Constellation program, and the mission to the moon, in reliably predicting instability modes, resonance and structural vibrations in propulsion systems such as the J-2X and RS-68 engines as well as test facilities with complex networks of valves, venturis, control elements etc. The software technology developed here can also be deployed by engine health monitoring systems and/or by control algorithms that require rapid response models of systems that consist of vast array of fluid dynamic components.","description":"Instabilities associated with the operation of liquid rocket propulsion systems and test facilities usually manifest themselves as structural vibrations and may cause structural damage. While the source of the instability is directly related to the performance of a component such as a turbopump, the associated pressure fluctuations as they propagate through the system have the potential to amplify and resonate with natural modes of the system. In this proposal, a novel multi-level (system and component) instability analysis tool is proposed to identify these resonant modes. In Phase I of this program, a Transfer Matrix based approach was developed to analyze the propagation of an instability through a limited range of components such as ducts, bends, orifices and diffusers. The initiation of an instability was resolved with the help of high-fidelity CFD simulations. Demonstration of the tool was successfully carried out for the propagation of an instability in a scaled down system. In Phase II, the tool will be expanded to include a wider array of components such as turbopumps, valve systems etc. This will permit analysis of a greater range of instabilities from multi-phase instabilities involving cavitation based events in turbopumps to valve based instabilities such as water hammer.","startYear":2010,"startMonth":8,"endYear":2013,"endMonth":2,"statusDescription":"Completed","principalInvestigators":[{"contactId":484426,"canUserEdit":false,"firstName":"Vineet","lastName":"Ahuja","fullName":"Vineet Ahuja","fullNameInverted":"Ahuja, Vineet","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}],"projectManagers":[{"contactId":3164534,"canUserEdit":false,"firstName":"Daniel","lastName":"Allgood","fullName":"Daniel Allgood","fullNameInverted":"Allgood, Daniel","primaryEmail":"Daniel.C.Allgood@nasa.gov","publicEmail":true,"nacontact":false},{"contactId":461333,"canUserEdit":false,"firstName":"Theresa","lastName":"Stanley","fullName":"Theresa M Stanley","fullNameInverted":"Stanley, Theresa M","middleInitial":"M","primaryEmail":"theresa.m.stanley@nasa.gov","publicEmail":true,"nacontact":false}],"website":"","libraryItems":[],"transitions":[{"transitionId":66431,"projectId":10328,"transitionDate":"2013-02-01","path":"Closed Out","closeoutDocuments":[{"title":"Final Summary Chart","file":{"fileExtension":"pdf","fileId":306325,"fileName":"STTR_2008_2_FSC_T10.01-9945","fileSize":85542,"objectId":66431,"objectType":{"lkuCodeId":1841,"code":"TRANSITION_FILES","description":"Transition Files","lkuCodeTypeId":182,"lkuCodeType":{"codeType":"OBJECT_TYPE","description":"Object Type"}},"fileSizeString":"83.5 KB"},"transitionId":66431,"fileId":306325}],"infoText":"Closed out","infoTextExtra":"","dateText":"February 2013"}],"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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