ie4785 extreme environments habitat design · nasa esmd capstone design 11 sleep environment...
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Louisiana State UniversityLaura Ikuma
Extreme Environments Habitat DesignAn Engineering Senior Design Course
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NASA ESMD Capstone Design 2
Course Description: Extreme Environments Habitats Design
♦ Design of human habitats for extreme environments• Lunar, Mars, space, and deep sea• Lecture materials on NASA's system engineering process and issues of
concern in designing living and working quarters in extreme environments.
♦ Team-taught by 3 faculty• Dr. Harvey: human-computer interaction, worked at NASA• Dr. Ikuma: biomechanics, work physiology, information processing• Dr. Knapp: systems engineering, information technology
♦ 2-semester course meets senior design (capstone) course requirement for all students.• Some students take fall semester only as an elective course
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NASA ESMD Capstone Design 3
Course Objectives
♦ To apply systems design, human factors, and other engineering skills and tools to address a specific design problem in extreme environment habitat design.
♦ To use project management skills to
• Define a problem
• Plan the necessary work activities
• Develop a proposal of work to solve or alleviate the problem
♦ To complete project plans and present them through written and oral reports.
♦ To improve team building and oral and written communication skills in a real world environment
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NASA ESMD Capstone Design 4
Multidisciplinary Senior Design Concept
♦ Systems Engineering (SE): structured and methodical approach to the development of large, complex systems.• Course uses SE as the framework for developing multidisciplinary
engineering design projects
♦ Students are from several engineering disciplines• Industrial engineering (16)• Biological engineering (3)• Mechanical engineering (1)• Construction management (1)
♦ Projects• Are student-driven• Incorporate human factors, systems engineering concepts, and other
engineering fields (e.g. biological engineering)
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NASA ESMD Capstone Design 5
Linking multiple engineering disciplines through systems design
• Pre-Phase A: Concept Studies• Phase A: Concept Development. • Phase B: Preliminary Design.• Phase C: Design & Fabricate.
• Phase D: System Assembly, Integration, Test, and Launch (SAITL)
• Phase E: Operations• Phase F: Closeout
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NASA ESMD Capstone Design 6
Main topics (course coverage)
♦ Space operations overview• History of space programs,
current and future programs
♦ Systems engineering design• Design process• Major subsystem types
♦ Habitat requirements• Crew (& Payload)
Accommodations• Supporting Human Habitat• Environmental Control & Life
Support Systems (ECLSS)• Closed vs. Open Loop and
Regenerative vs. non-Regenerative Technologies
• Extravehicular Activity
♦ Habitat design (Human factors considerations)• Biomechanics, Work-related
injuries and illnesses, Anthropometry
• Environment: thermal, radiation• Cardiovascular demands• Safety• Information Processing,
Situation Awareness• Augmented Reality, Assistive
Technology
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NASA ESMD Capstone Design 7
Engineering Design Process (EDP)
♦ The iterative process of designing a subsystem, component or process to meet desired deeds.
♦ Design Phases:• Phase 1. Project Definition and Planning Phase• Phase 2. Requirements Definition and Engineering
Specifications• Phase 3. Concept Generation and Evaluation Phase
(also known as the Conceptual Design Phase)• Phase 4. Product Design Phase
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NASA ESMD Capstone Design 8
Project Requirements Report
♦ Objective and background♦ Quantitative design constraints
• Money, mass, energy, and volume budgets• Environment and associated conditions (temperature ranges, gravity,
atmosphere, light, radiation, etc.)• Length of mission• # crew members and activities
♦ Weighted user requirements• Functional and performance requirements• Interfaces• Environmental• Safety and reliability
♦ Design evaluation plan♦ Team organization and project plan
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NASA ESMD Capstone Design 9
Concept Generation and Evaluation Plan
♦ Provides complete design specifications♦ Provides statement of work for prototype generation and testing
• This work will be carried out in the spring semester
♦ Presented to class, instructors, and NASA contacts via video conference
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NASA ESMD Capstone Design 10
Radiation Reduction
Objective: To reduce human exposure to cosmic and solar radiation in a lunar base to an acceptable level for a six-month period.
http://www.nsbri.org/HumanPhysSpace/introduction/intro-environment-radiation.html
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NASA ESMD Capstone Design 11
Sleep Environment
Objective: This project will focus on the design of an efficient and effective sleeping environment that will allow astronauts to obtain a sufficient and quality amount of sleep while residing on the moon and in space.
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NASA ESMD Capstone Design 12
Modular Habitat Design
http://www.jpl.nasa.gov/news/news.cfm?release=2008-214
Objective: To find the shape, materials, and shipment and assembly processes which maximize compatibility and flexibility in a modular Martian habitat while staying within Design Reference Mission specifications
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NASA ESMD Capstone Design 13
The Lunar Dust Dilemma
Objective: The main goal of this design project is to minimize the amount of lunar dust that is tracked into the habitation module on the moon.
Currently, an estimated 227g/suit of dust reenters the module after an EVA, approximately 7% of which becomes airborne. Our objective is to decrease the amount of airborne dust to 2%.
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NASA ESMD Capstone Design 14
Bioregenerative Life-Support System (BLSS)
Objective: To design and optimize a hydroponic nutrient delivery system for phototrophic organisms, which sustain oxygen levels required for human life, utilizing available sources present on Mars.
Source: www.nasa.gov
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NASA ESMD Capstone Design 15
Course Timeline
Fall 2010
• Project Proposals
• Project Requirements
• Concept Generation & Evaluation Plan
Spring 2011
• Testing and evaluation
• Outreach to local elementary school
Summer 2011
• Course workshop
• Finalize course materials
Fall 2011
• Ready for implementation in other schools!
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NASA ESMD Capstone Design 16
Learn more, come to the workshop (FREE!)
♦ Workshop on this senior design course held July 2011♦ NASA will cover expenses♦ Course content will also be available on NASA website
• Presentation slides• Course materials