Lunar human landing system architecture tradespace modeling by Latyshev, Kir, Garzaniti, Nicola, Crawley, Edward, Golkar, Alessandro

Get full text

Incorporating safety risk in early system architecture trade studies by Dulac, Nicholas, Leveson, Nancy G.

Get full text
Get full text

Technology Portfolio Planning by Weighted Graph Analysis of System Architectures by Davison, Peter, Crawley, Edward F., Cameron, Bruce Gregory

Get full text

A rule-based method for scalable and traceable evaluation of system architectures by Selva, Daniel, Crawley, Edward F., Cameron, Bruce Gregory

Get full text
Get full text

Structural Complexity Quantification for Engineered Complex Systems and Implications on System Architecture and Design by Sinha, Kaushik, de Weck, Olivier L

“…We further discuss distribution of complexity across the system architecture and its strategic implications for system development efforts. © 2013 by ASME…”
Get full text
Get full text

Structural Complexity Quantification for Engineered Complex Systems and Implications on System Architecture and Design by de Weck, Olivier L., Sinha, Kaushik, de Weck, Olivier L

“…We further discuss distribution of complexity across the system architecture and its strategic implications for system development efforts.…”
Get full text
Get full text

Algebra of systems: A metalanguage for model synthesis and evaluation by Koo, Benjamin H. Y., Simmons, Willard L., Crawley, Edward F.

Subjects: Get full text

Valuation of On-Orbit Servicing in Proliferated Low-Earth Orbit Constellations by Luu, Michael, Hastings, Daniel E.

“…This paper analyzes the benefits of OOS in proliferated LEO constellations. Several OOS system architectures are modeled; in each system architecture the model will vary qualities such as number of servicers, altitudes, and orbital maneuvers. …”
Get full text

Category-Theoretic Formulation of the Model-Based Systems Architecting Cognitive-Computational Cycle by Mordecai, Yaniv, Fairbanks, James P., Crawley, Edward F.

“…We demonstrate the CMGVC to transform a conceptual system architecture model built with the Object Process Modeling Language (OPM) into dual graphs and a stakeholder-informing matrix that stimulates system architecture insight.…”
Get full text

Integrative Complexity: An Alternative Measure for System Modularity by Suh, Eun Suk, Sinha, Kaushik, De Weck, Olivier L

“…This leads to the conclusion that the IC can be used as an alternative metric for modularity assessment of system architectures.…”
Get full text
Get full text

Review of On-Orbit Servicing Considerations for Low-Earth Orbit Constellations by Luu, Michael, Hastings, Daniel E.

“…This OOS capability enables higher flexibility, risk reduction, and new expanded system architectures. More recently, the space industry is rapidly deploying a high number of satellites in proliferated low-earth orbit (LEO) constellations at orders of magnitude not seen before. …”
Get full text

Safety Analysis in Early Concept Development and Requirements Generation by Leveson, Nancy G

“…This paper shows how a new hazard analysis technique, STPA (System Theoretic Process Analysis), can be used to generate high-level safety requirements early in the concept development phase that canthenassist in the design of the system architecture. These general, system-level requirements can be refined using STPA as decisions are made. …”
Get full text

Tradespace exploration of in-space communications network architectures by Crawley, Edward F., Davison, Peter Leslie, Cameron, Bruce Gregory

“…Additionally, there are numerous viable system architectures. In this paper, we build on existing methods to develop a graph-based decision method to assess and explore architectural flexibility in the future evolution of long lifecycle systems. …”
Get full text

Dominant Suborbital Space Tourism Architectures by Guerster, Markus, Crawley, Edward F

“…This pattern can currently be observed in the suborbital tourism industry, in which the obvious question is what system architecture will provide the best combination of cost and safety and in the long run become the dominant architecture. …”
Get full text

The Variable Vector Countermeasure Suit (V2Suit) for space habitation and exploration by Duda, Kevin R., Vasquez, Rebecca A., Middleton, Akil J., Hansberry, Mitchell L., Jacobs, Shane E., West, John J., Newman, Dava

“…This included a system architecture for identifying the key components and their interconnects, initial identification of key human-system integration challenges, development of a simulation architecture for CMG selection and parameter sizing, and the detailed mechanical design and fabrication of a module. …”
Get full text
Get full text

A technical comparison of three low earth orbit satellite constellation systems to provide global broadband by Del Portillo Barrios, Inigo, Cameron, Bruce Gregory, Crawley, Edward F

“…First, we present the system architecture of each of the constellations (as described in their respective FCC filings), highlighting the similarities and differences amongst the three systems. …”
Get full text

A Delphi-Based Framework for systems architecting of in-orbit exploration infrastructure for human exploration beyond Low Earth Orbit by Aliakbargolkar, Alessandro, Crawley, Edward F

“…Needs are subsequently converted into requirements and coupled to the system architectures of interest to analyze the correlation between exploration, science, and policy goals. …”
Get full text
Get full text

WFIRST coronagraph technology requirements: status update and systems engineering approach by Douglas, Ewan S., Carlton, Ashley K., Cahoy, Kerri, Turnbull, Margaret, Macintosh, Bruce, Kasdin, N. Jeremy

“…The SRR examines the functional requirements and performance requirements defined for the system and the preliminary program or project plan and ensures that the requirements and the selected concept will satisfy the mission, and the SDR examines the proposed system architecture and design and the flow down to all functional elements of the system.…”
Get full text

An independent assessment of the technical feasibility of the Mars One mission plan – Updated analysis by Do, Sydney, Owens, Andrew Charles, Ho, Koki, Schreiner, Samuel Steven, de Weck, Olivier L.

“…This conclusion is obtained from analyses based on mission assumptions derived from and constrained by statements made by Mars One, and is the result of the following findings: (1) several technologies including ISRU, life support, and entry, descent, and landing (EDL) are not currently “existing, validated and available” as claimed by Mars One; (2) the crop growth area described by Mars One is insufficient to feed their crew; (3) increasing the crop growth area to provide sufficient food for the crew leads to atmospheric imbalances that requires a prohibitively large ISRU atmospheric processor or a notably different system architecture to manage; and (4) at least 13 Falcon Heavy launches are needed to deliver a portion of the required equipment to the Martian surface, a value that is at least double that planned by Mars One for the same mission phase. …”
Get full text
Get full text
Get full text
Get full text