Behavior Ontology and Modeling Patterns for Spacecraft Power Analysis
No abstract available
Donahue, Kenny↗
Engineering topics
Donahue, Kenny
Publications and source records attributed to Donahue, Kenny.
Modeling Off-Nominal Behavior in SysML
Fault Management is an essential part of the system engineering process that is limited in its effectiveness by the ad hoc nature of the applied approaches and methods. Providing a rigorous way to develop and describe off-nominal behavior is a necessary step in the improvement of fault management, and as a result, will enable safe, reliable and available systems even as system complexity increases... The basic concepts described in this paper provide a foundation to build a larger set of necessary concepts and relationships for precise modeling of off-nominal behavior, and a basis for incorporating these ideas into the overall systems engineering process.. The simple FMEA example provided applies the modeling patterns we have developed and illustrates how the information in the model can be used to reason about the system and derive typical fault management artifacts.. A key insight from the FMEA work was the utility of defining failure modes as the "inverse of intent", and deriving this from the behavior models.. Additional work is planned to extend these ideas and capabilities to other types of relevant information and additional products.
Soil Moisture Active-Passive (SMAP) Mission↗
SCaN Integrated Network Monitor and Control Software Architecture SysML Model of Trade Space Options
The Problem -- Model NASA?s Space Communication and Navigation (SCaN) Integrated Network Architecture (INA) to perform System of Systems & Trade Space architecture evaluation.
Space Communication and Navigation (SCaN)↗
MBSE in Development: SMAP Pilot Project
Customer-focused objective: Provide value to a flight project using Model-Based Systems Engineering (MBSE) methodology and products. Institution-focused objective: Advance and improve our systems engineering practices, leveraging MBSE where applicable: Streamline our interfaces across JPL Divisions, to provide better cross-organization products; Streamline our interfaces across lifecycle phase boundaries; Update our SE practices to make them more competitive and able to handle systems of ever-increasing complexity.
Soil Moisture Active and Passive (SMAP)↗