Facilitating R&amp;M in spaceflight systems with MBSE

Izygon, Michel; Wagner, Howard; Okon, Shira; Wang, Lui; Sargusingh, Miriam J.; Evans, John W.

doi:10.1109/rams.2016.7448031

Cited by 27 publications

(8 citation statements)

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“…The combination of the low-level events is expressed using an AND/OR tree-like structure. The extraction of fault trees, as well as other reliability artifacts, from SysML has been demonstrated as viable means of rapidly building reliability models [11,12].…”

Section: Fault Tree Modelsmentioning

confidence: 99%

Systems engineering and assurance modeling (SEAM): A web-based solution for integrated mission assurance

et al. 2021

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We present an overview of the Systems Engineering and Assurance Modeling (SEAM) platform, a web-browser-based tool which is designed to help engineers evaluate the radiation vulnerabilities and develop an assurance approach for electronic parts in space systems. The SEAM framework consists of three interconnected modeling tools, a SysML compatible system description tool, a Goal Structuring Notation (GSN) visual argument tool, and Bayesian Net and Fault Tree extraction and export tools. The SysML and GSN sections also have a coverage check application that ensures that every radiation fault identified on the SysML side is also addressed in the assurance case in GSN. The SEAM platform works on space systems of any degree of radiation hardness but is especially helpful for assessing radiation performance in systems with commercial off-the-shelf (COTS) electronic components.

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Section: Fault Tree Modelsmentioning

confidence: 99%

Systems engineering and assurance modeling (SEAM): A web-based solution for integrated mission assurance

et al. 2021

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“…An optimization method was presented based on these examples. Reliability and maintenance activities were merged with MBSE in [24]. Associated tools were developed to automatically extract FMECA and Fault Trees from the model.…”

Section: A Mbse For Space System Architectingmentioning

confidence: 99%

MBSE for Satellite Communication System Architecting

et al. 2019

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The risk of failure for aerospace missions can be reduced if architects model the product in a systematic way and make decisions for physical implementation based on stakeholder needs. Satellite communication system architecting should take one of its dominating elements, the communication satellite, into account for consistent modeling during the whole product lifecycle. Model-based system engineering (MBSE) serves as a useful tool for system modeling activities and connections with manufacturing. In this paper, satellite communication system architecting is investigated in the preliminary design stage via MBSE methodologies and the system modeling language (SysML). Application scenarios and use cases are built up aiming at satisfying stakeholder needs. System black-box analysis and white-box logical decomposition are further realized. The logical architecture is then partitioned for physical implementation and system optimization is carried out to give architecting suggestions. Requirement traceability is examined to finish the current design stage. The models realized by the MBSE method are reusable and easily extendible to detailed system design and implementation in the whole product lifecycle.

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“…Work within NASA has shown that basic reliability models, including Reliability Block Diagrams, Failure Modes and Effects Analysis (FMEA) and Fault Tree Analysis (FTA), can be synthesized from the SysML representations of structural and behavioral models in a highly automated fashion, early in the development. This was shown be effective for a safety critical system for water purification essential to manned flight in space 23 and is further discussed below.…”

Section: Model Based Practices For Complex System Analysismentioning

confidence: 99%

Towards a framework for reliability and safety analysis of complex space missions

Evans¹,

Groen²,

Wang

et al. 2018

IJHFMS

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Long duration and complex mission scenarios are characteristics of NASA's human exploration of Mars, and will provide unprecedented challenges. Systems reliability and safety will become increasingly demanding and management of uncertainty will be increasingly important. NASA's current pioneering strategy recognizes and relies upon assurance of crew and asset safety. In this regard, flexibility to develop and innovate in the emergence of new design environments and methodologies, encompassing modeling of complex systems, is essential to meet the challenges.

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Facilitating R&M in spaceflight systems with MBSE

Cited by 27 publications

References 1 publication

Systems engineering and assurance modeling (SEAM): A web-based solution for integrated mission assurance

Systems engineering and assurance modeling (SEAM): A web-based solution for integrated mission assurance

MBSE for Satellite Communication System Architecting

Towards a framework for reliability and safety analysis of complex space missions

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