Methodology for Evaluating Modular Assembly of Large Space Platforms

Details Methodology for Evaluating Modular Assembly of Large Space Platforms Methodology for Evaluating Modular Assembly of Large Space Platforms

Jan 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aipc..813.1010s&link_type=abstract

SPACE TECH.& APPLIC.INT.FORUM-STAIF 2006: 10th Conf Thermophys Applic Microgravity; 23rd Symp Space Nucl Pwr & Propulsion; 4th C

Other

Spaceborne And Space Research Instruments, Apparatus, And Components, Other Structures, Engineering

Scientific paper

This paper presents a methodology for analytically comparing approaches to modular assembly of large space platforms. The methodology combines a physical model of the modules, a life-cycle cost model, and a risk model to capture influential trade-offs. The physical model includes alternative module design characteristics, assembly time scenarios, alternative work systems (human, robotic), and infrastructures. A life-cycle cost framework is defined to capture the benefits and costs of modular alternatives for single or multi-mission (programmatic) applications. A probabilistic risk model to address launch and assembly risks is employed to capture uncertainties in launch, as well as in the assembly approaches and their complexity (number of assembly steps, module connections). An illustration of the tradeoffs between these models for a single mission is described using a 448kW Solar Electric Transport Vehicle (SETV) supporting a human lunar mission. The illustration was limited to the launch and assembly phase from beginning of first element launch to completion of assembly. Results and observations are presented and discussed.

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