Simulating lunar habitats and activities to derive system requirements

David Kortenkamp, Scott Bell, Luis Rodriguez

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Simulations allow for the testing of different system configurations before hardware is built. It is important that such simulations are dynamic and that they integrate all major subsystems and activities. This paper describes a specific habitat simulation being built at NASA Johnson Space Center. It is a discrete-event simulation that is dynamic and stochastic. It simulates all major subsystem of a Lunar or Martian habitat, including the crew (with variable ages, weights and genders), biomass production (with scalable plantings of nine different crops), water recovery, air revitalization, food processing, solid waste recycling and energy production. Crew activities are modeled including: exercise, sleep and work. Extravehicular activities (EVAs) are simulated by having crew members leave the habitat taking small amounts of consumable resources with them and then returning later with fewer consumables. Habitat pressure is simulated including leak rates and losses due to airlocks and EVA. Malfunctions can be injected at any time into any subsystem. The simulation also models sensors and actuators to provide for control opportunities. The simulation is written in an object-oriented paradigm that makes it portable, extensible and reconfigurable. In addition to introducing the simulation, this paper also presents results from using the simulation to analyze five different Lunar habitat configurations.

Original languageEnglish (US)
Title of host publicationA Collection of Technical Papers - 1st Space Ecploration Conference
Subtitle of host publicationContinuing the Voyage of Discovery
Pages1002-1021
Number of pages20
StatePublished - Dec 15 2005
Externally publishedYes
Event1st Space Exploration Conference: Continuing the Voyage of Discovery - Orlando, FL, United States
Duration: Jan 30 2005Feb 1 2005

Publication series

NameA Collection of Technical Papers - 1st Space Exploration Conference: Continuing the Voyage of Discovery
Volume2

Other

Other1st Space Exploration Conference: Continuing the Voyage of Discovery
CountryUnited States
CityOrlando, FL
Period1/30/052/1/05

ASJC Scopus subject areas

  • Engineering(all)

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  • Cite this

    Kortenkamp, D., Bell, S., & Rodriguez, L. (2005). Simulating lunar habitats and activities to derive system requirements. In A Collection of Technical Papers - 1st Space Ecploration Conference: Continuing the Voyage of Discovery (pp. 1002-1021). (A Collection of Technical Papers - 1st Space Exploration Conference: Continuing the Voyage of Discovery; Vol. 2).