Course Overview
• Course Overview
– Goals
– Web-based Content
– Syllabus
– Policies
– Project Content
• Group Design Project
UNIVERSITY OF
MARYLAND
© 2007 David L. Akin - All rights reserved
http://spacecraft.ssl.umd.edu
Project Definition
Space Systems Design
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Contact Information
Dr. Dave Akin
Neutral Buoyancy Research Facility/Room 2100D
301-405-1138
dakin@ssl.umd.edu http://spacecraft.ssl.umd.edu
Dr. Mary Bowden
Engineering Classroom Building/Room 3146
301-405-0011
bowden@umd.edu maryb@ssl.umd.edu
TA: Peter Gardner (contact info TBD)
UNIVERSITY OF
MARYLAND
Project Definition
Space Systems Design
2
Goals of ENAE 483/484
• Learn the basic tools and techniques of systems
analysis and space vehicle design
• Understand the open-ended and iterative nature
of the design process
• Simulate the cooperative group engineering
environment of the aerospace profession
• Develop experience and skill sets for working in
teams
• Perform and document professional-quality
systems design of focused space mission
concepts
UNIVERSITY OF
MARYLAND
3
Project Definition
Space Systems Design
Outline of Space Systems
• ENAE 483 (Fall)
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Lecture style, problem sets and quizzes
Design as a discipline
Disciplinary subjects not contained in curriculum
Engineering graphics
Engineering ethics
• ENAE 484 (Spring)
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Single group design project
Externally imposed matrix organization
Engineering presentations
Group dynamics
Peer evaluations
UNIVERSITY OF
MARYLAND
4
Project Definition
Space Systems Design
Web-based Course Content
• Data web site at http://spacecraft.ssl.umd.edu
– Course information
– Syllabus
– Lecture notes
– Problems and solutions
• Interactive web site at https://bb.eng.umd.edu/
– Communications for team projects
– Lecture videos
UNIVERSITY OF
MARYLAND
5
Project Definition
Space Systems Design
ENAE 484 Spring 2007 Project Statement
As NASA works to fully define its Vision for Space Exploration, early attention has been focused on the Crew
Exploration Vehicle to replace the shuttle, and the Ares I and Ares V launch vehicles to provide human access to
the moon. While a Lunar Architecture Team recently released its concept for a permanent outpost on the edge of
Shackelton Crater on the lunar south pole, few details have been developed for how the lunar base will be designed,
or how the system will support extended human exploration beyond the local area. Furthermore, with limited
funding and the demands of near-term challenges, little effort has been available to consider the ultimate goals of
extensive planet-wide exploration by humans of the Moon and Mars. To address these open issues, the Spring 2007 University of Maryland ENAE 484 Space Systems Design class will
focus on developing a comprehensive design for the lunar outpost, and for the systems required to support
extended human exploration of the moon. Starting with the assumption of the availability of the CEV, Ares I and V,
and Earth Departure Stage as currently envisioned by NASA, the 484 design team will develop optimal designs for
the lunar base, and for support infrastructure (rovers, habitats, and other necessary equipment) to allow the
construction of the lunar outpost, development of in-situ resource utilization, and human access to remote regions
for extended exploration and resource exploitation. While the team can start with the current NASA concept of
the Lunar Surface Access Module, the lunar surface access vehicle design will be considered part of the team's
design assignment, in order to exploit beneficial synergies between the lunar lander and the systems carried to the
surface. As a mission focus for this design effort, the goal is to develop a lunar infrastructure to support a full simulation
of a human exploration mission to Mars, in addition to accomplishing lunar exploration and science objectives. This
will entail a 500-day mission duration without crew rotation or consumables resupply. The crew will be expected to
develop and maintain the main outpost, as well as support human exploration within a 500 km radius of Shackelton
Crater. UNIVERSITY OF
MARYLAND
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Project Definition
Space Systems Design
Project Milestones
1/22
1/29
2/5
2/12
2/19
2/26
3/5
3/12
3/19
3/26 4/2
4/9
4/16
4/23
4/30
5/7
Spring
Break
First Day
of Class
ConOps
Review
Trade
Study
Review
Preliminary
Design Review
UNIVERSITY OF
MARYLAND
7
Final Report
Outline/Draft
Critical
Design Review
Final
Report
Project Definition
Space Systems Design
Critical Issues/Challenges
• Design a system for lunar surface access that
accommodates both humans (two-way) and cargo
(one-way), provides simple access to the
surface, and directly supports the
establishment of the infrastructure for the
outpost and for extended lunar exploration
UNIVERSITY OF
MARYLAND
8
Project Definition
Space Systems Design
Critical Issues/Challenges
• Address the goal of being able to safely access
essentially any terrain within a 500 km radius.
If the problem can be measured along
dimensions of distance, duration, payload (both
human and cargo), and terrain (slopes/
obstacles), what set of systems optimally
provides access throughout the 4D trade space?
UNIVERSITY OF
MARYLAND
9
Project Definition
Space Systems Design
Critical Issues/Challenges
• Given the limitations in funding, develop an
architecture with maximum use of commonality,
modularity, and reuse of existing systems to
provide maximum capability at minimum cost
UNIVERSITY OF
MARYLAND
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Project Definition
Space Systems Design
Akin’s Laws of Spacecraft Design - #1
Engineering is done with numbers.
Analysis without numbers is only an
opinion.
UNIVERSITY OF
MARYLAND
Project Definition
Space Systems Design
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