USA flag logo/image

An Official Website of the United States Government

Quantification of Uncertainties in Integrated Spacecraft System Models

Award Information

National Aeronautics and Space Administration
Award ID:
Program Year/Program:
2011 / STTR
Agency Tracking Number:
Solicitation Year:
Solicitation Topic Code:
Solicitation Number:
Small Business Information
M4 Engineering, Inc.
4020 Long Beach Blvd 2nd Floor Long Beach, CA 90807
View profile »
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Phase 2
Fiscal Year: 2011
Title: Quantification of Uncertainties in Integrated Spacecraft System Models
Agency: NASA
Contract: NNX11CC60C
Award Amount: $599,951.00


The objective for the Phase II effort will be to develop a comprehensive, efficient, and flexible uncertainty quantification (UQ) framework implemented within a matured user-friendly software, which will enable the modeling of both inherent and epistemic uncertainties in spacecraft system models, have a general quantification of margins and uncertainties (QMU) capability for system certification and reliability assessment, and utilize advanced methods based on non-intrusive polynomial chaos (NIPC) for efficient and accurate propagation of mixed (inherent+epistemic) uncertainties as also demonstrated under the Phase I effort. In the proposed project, an adaptive uncertainty quantification methodology, which will successively utilize different NIPC methods depending on the size of the problem along with the non-linear global sensitivity information, will be implemented to address the computational expense of UQ in complex spacecraft system simulations with large number of uncertain variables. The developed UQ framework and QMU capability will be demonstrated on a large-scale spacecraft system model that is of interest to NASA. This proposed work will compliment M4 Engineering's expertise in developing simulation technologies that solve relevant demonstration applications. The researchers from MS & T (RI) will guide the implementation of UQ and QMU methodologies and contribute to the proposed effort with their UQ expertise in aerospace simulations.

Principal Investigator:

Tyler Winter
Principal Investigator

Business Contact:

Kevin M. Roughen
Vice President of Engineering
Small Business Information at Submission:

M4 Engineering, Inc.
4020 Long Beach Boulevard Long Beach, CA 90807-2683

EIN/Tax ID: 861065358
Number of Employees:
Woman-Owned: Yes
Minority-Owned: No
HUBZone-Owned: No
Research Institution Information:
Missouri University of Science&Technology
300 West 12th Street
Rolla, MO 65401-1330
Contact: Serhat Hosder