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Modeling Temporal Processes in Early Spacecraft Design: Application of Discrete-Event Simulations for Darpa's F6 ProgramWhile the ability to model the state of a space system over time is essential during spacecraft operations, the use of time-based simulations remains rare in preliminary design. The absence of the time dimension in most traditional early design tools can however become a hurdle when designing complex systems whose development and operations can be disrupted by various events, such as delays or failures. As the value delivered by a space system is highly affected by such events, exploring the trade space for designs that yield the maximum value calls for the explicit modeling of time.This paper discusses the use of discrete-event models to simulate spacecraft development schedule as well as operational scenarios and on-orbit resources in the presence of uncertainty. It illustrates how such simulations can be utilized to support trade studies, through the example of a tool developed for DARPA's F6 program to assist the design of "fractionated spacecraft".
Document ID
Document Type
Conference Paper
External Source(s)
Dubos, Gregory F. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Cornford, Steven (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Date Acquired
April 10, 2015
Publication Date
September 11, 2012
Subject Category
Spacecraft Design, Testing and Performance
Meeting Information
AIAA SPACE 2012 Conference & Exposition(Pasadena, CA)
Distribution Limits
trade space exploration
F6 program
fractionated spacecraft
discrete-event simulation
Discrete-Event Simulations (DES)