S. J. Dyke 1,2 , A. Bobet 1 , J. Ramirez 1 , H. J. Melosh 3 , D. Gomez 1 , A. Maghareh 1 , A. Modiriasari 1 , and A. Theinat 1 1,* Lyles School of Civil Eng., Purdue University, 2 School of Mechanical Eng., Purdue University, and 3 Department of Earth, Atmospheric, and Planetary Sciences, Purdue University The 49 th Lunar and Planetary Science Conference March 19-23, 2018 (No. 2882) RESILIENT EXTRATERRESTRIAL HABITAT ENGINEERING Introduction • The design, construction and operation of safe and comfortable habitations is one of humankind’s oldest activities. • Humankind is now faced with new challenges as we begin to move beyond Earth into Space. • The design of sustainable, long-term human settlements represents a multidisciplinary engineering and scientific grand challenge for humanity. • Providing livable conditions in Space will require the highest applications of engineering and technology to design and construct habitats that are resilient to disturbances, such as: Extreme threat environment: ➢ Air pressure ➢ Oxygen ➢ Temperature fluctuations Environmental hazards: ➢ Meteorite impacts ➢ Radiation ➢ Seismic motions • A new interdisciplinary effort at Purdue University is in place to perform the science and establish the know- how to build resilient extraterrestrial habitats. In addition, interdependencies between structures are modeled based on Systems Operational Dependency Analysis [6]. Each dependency is represented with three parameters: strength of dependency (SOD), criticality of dependency (COD), and impact of dependency [6], see Figure 3. SOD accounts for how much the functionality of the structure (k) depends on the functionality of the structure (i or j). COD and IOD quantify how the functionality of the structure (k) degrades when the structure (i or j) is experiencing a failure. Here, dependencies are modeled as piecewise linear relationship, suitable to analyze various scenarios, including partial dependencies. In addition, interdependencies between structures are modeled based on Systems Operational Dependency Analysis [6]. Each dependency is represented with three parameters: strength of dependency (SOD), criticality of dependency (COD), and impact of dependency [6], see Figure 3. SOD accounts for how much the functionality of the structure (k) depends on the functionality of the structure (i or j). COD and IOD quantify how the functionality of the structure (k) degrades when the structure (i or j) is experiencing a failure. Here, dependencies are modeled as piecewise linear relationship, suitable to analyze various scenarios, including partial dependencies. STRUCTURAL DESIGN Building Knowledge Building Partnerships Settlement Concepts Building Knowledge Resilient Extraterrestrial Habitats HAZARD QUANTIFICATION Building Partnerships • Identify the science and engineering needs to achieve long-term extraterrestrial habitats. • Exchange ideas and promote discussion on research needs focused on seeking answers to key research on resilient extraterrestrial habitats. • A Workshop is planned for Fall of 2018, West Lafayette, Indiana. • Email: [email protected] www.purdue.edu/reth/ Seismic Activity Meteoroid Impacts Building Materials Power Needs RETH DESIGN HABITAT QUANTIFY HAZARDS Thermal Extremes Radiation Radiation Resilience Crew Safety Structural Stability • A resilience framework is developed to design a safe and resilient habitat where desired properties of the system are considered such as reconfigurability, robustness, scalability and rapidity. • Results from NASA’s GRAIL mission have been used to determine the existence of a network of large, empty tubes in the lunar lava flows. • Preliminary FEM simulations indicate that lava tubes with even 4 km width may remain stable with a roof as thin as ~40 m with both elliptical and circular shapes if the rock does not contain critical fractures. Settlement Concept
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S. J. Dyke1,2, A. Bobet1, J. Ramirez1, H. J. Melosh3, D. Gomez1, A. Maghareh1, A. Modiriasari1, and A. Theinat1
1,*Lyles School of Civil Eng., Purdue University, 2School of Mechanical Eng., Purdue University, and 3Department of Earth, Atmospheric, and Planetary
Sciences, Purdue University
The 49th Lunar and Planetary Science Conference March 19-23, 2018 (No. 2882)
RESILIENT EXTRATERRESTRIAL
HABITAT ENGINEERING
Introduction
• The design, construction and operation of safe andcomfortable habitations is one of humankind’s oldestactivities.
• Humankind is now faced with new challenges as webegin to move beyond Earth into Space.
• The design of sustainable, long-term humansettlements represents a multidisciplinary engineeringand scientific grand challenge for humanity.
• Providing livable conditions in Space will require thehighest applications of engineering and technology todesign and construct habitats that are resilient todisturbances, such as:
Extreme threat environment:➢ Air pressure➢ Oxygen➢ Temperature fluctuations
Environmental hazards:➢ Meteorite impacts➢ Radiation➢ Seismic motions
• A new interdisciplinary effort at Purdue University is inplace to perform the science and establish the know-how to build resilient extraterrestrial habitats.
In addition, interdependencies between structures are modeled based on Systems Operational Dependency Analysis [6]. Each dependency is represented with three parameters: strength of dependency (SOD), criticality of dependency (COD), and impact of dependency [6], see Figure 3. SOD accounts for how much the functionality of the structure (k) depends on the functionality of the structure (i or j). COD and IOD quantify how the functionality of the structure (k) degrades when the structure (i or j) is experiencing a failure. Here, dependencies are modeled as piecewise linear relationship, suitable to analyze various scenarios, including partial dependencies.
In addition, interdependencies between structures are modeled based on Systems Operational Dependency Analysis [6]. Each dependency is represented with three parameters: strength of dependency (SOD), criticality of dependency (COD), and impact of dependency [6], see Figure 3. SOD accounts for how much the functionality of the structure (k) depends on the functionality of the structure (i or j). COD and IOD quantify how the functionality of the structure (k) degrades when the structure (i or j) is experiencing a failure. Here, dependencies are modeled as piecewise linear relationship, suitable to analyze various scenarios, including partial dependencies.
STRUCTURAL DESIGN
Building Knowledge
Building
Partnerships
Settlement
Concepts
Building
Knowledge
Resilient Extraterrestrial
Habitats
HAZARD QUANTIFICATION
Building Partnerships
• Identify the science and engineering needs to achievelong-term extraterrestrial habitats.
• Exchange ideas and promote discussion on researchneeds focused on seeking answers to key research onresilient extraterrestrial habitats.
• A Workshop is planned for Fall of 2018, West
Lafayette, Indiana.
• Email: [email protected]
www.purdue.edu/reth/
Seismic Activity
Meteoroid Impacts
Building Materials
Power Needs
RETH DESIGN HABITAT
QUANTIFY HAZARDS
Thermal Extremes
Radiation Radiation
Resilience
Crew Safety
StructuralStability
• A resilience framework isdeveloped to design a safe andresilient habitat where desiredproperties of the system areconsidered such asreconfigurability, robustness,scalability and rapidity.
• Results from NASA’s GRAIL mission have been used todetermine the existence of a network of large, emptytubes in the lunar lava flows.
• Preliminary FEM simulations indicate that lava tubes witheven 4 km width may remain stable with a roof as thin as~40 m with both elliptical and circular shapes if the rockdoes not contain critical fractures.
Settlement Concept
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