course syllabus/design project€¦ · course syllabus/team projects . enae 483/788d - principles...
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Course Syllabus/Team Projects ENAE 483/788D - Principles of Space Systems Design
U N I V E R S I T Y O FMARYLAND
Course Syllabus/Design Project• Lecture #01 – September 1, 2020 • Course Syllabus
– Goals – Web-based Content – Schedule – Policies
• 2020/21 Design Projects
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© 2020 David L. Akin - All rights reserved http://spacecraft.ssl.umd.edu
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Course Syllabus/Team Projects ENAE 483/788D - Principles of Space Systems Design
U N I V E R S I T Y O FMARYLAND
Up Front, a Word about Zoom• All lectures are recorded and posted on ELMS • My chat window is open - feel free to use that to
ask questions • Our goal is to maximize the flow of information
in both directions - please help with suggestions as we go through the term
• We’re still learning, too
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Course Syllabus/Team Projects ENAE 483/788D - Principles of Space Systems Design
U N I V E R S I T Y O FMARYLAND
Contact InformationDr. Dave Akin Neutral Buoyancy Research Facility/Room 2100D 301-405-1138 [email protected] http://spacecraft.ssl.umd.edu Dr. Andrew Becnel Manufacturing Building/Room 1117 301-405-1931 [email protected] Zach Lachance (TA)
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Course Syllabus/Team Projects ENAE 483/788D - Principles of Space Systems Design
U N I V E R S I T Y O FMARYLAND
Goals of ENAE 483/484 (and 788D)• Learn the basic tools and techniques of systems
analysis and space vehicle design • Develop individual skills in computer-aided design
and engineering communications • 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 missions concepts
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Course Syllabus/Team Projects ENAE 483/788D - Principles of Space Systems Design
U N I V E R S I T Y O FMARYLAND
Outline of Space Systems• ENAE 483/788D (Fall)
– Lecture style, problem sets and quizzes – Design as a discipline – Disciplinary subjects not contained in curriculum – Engineering graphics – Small design teams and projects
• ENAE 484 (Spring) – Four independent group design projects – Externally imposed matrix organization – Engineering presentations – Group dynamics – Peer evaluations
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Course Syllabus/Team Projects ENAE 483/788D - Principles of Space Systems Design
U N I V E R S I T Y O FMARYLAND
Additional Features of the Class• Emphasize project content
– Start 484 project during 483 – Build teams for spring term in the fall – Add specific lectures for project specialties – Provide opportunities for both experimentalists and
theoreticians • “Design/Build/Test/Evaluate”
– Space equivalent to “design/build/fly” for aero side – Parallels mission-level design activities – Major system(s) relevant to national programs
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Course Syllabus/Team Projects ENAE 483/788D - Principles of Space Systems Design
U N I V E R S I T Y O FMARYLAND
Web-based Course Content• Data web site at http://spacecraft.ssl.umd.edu
– Syllabus and course information – Lecture notes – Problems and solutions
• Course site on ELMS – Links to Zoom sessions, posting of lecture videos
• ENAE 483 Microsoft Teams site – Use for team communications, collaborative design
activities, alternative if Zoom goes down • Akin’s Laws of Spacecraft Design at
http://spacecraft.ssl.umd.edu/akins_laws.html
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Course Syllabus/Team Projects ENAE 483/788D - Principles of Space Systems Design
U N I V E R S I T Y O FMARYLAND
Akin’s Laws of Spacecraft Design - #1
Engineering is done with numbers. Analysis without numbers is only an opinion.
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http://spacecraft.ssl.umd.edu/akins_laws.html
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Course Syllabus/Team Projects ENAE 483/788D - Principles of Space Systems Design
U N I V E R S I T Y O FMARYLAND
Akin’s Laws of Spacecraft Design - #12
There is never a single right solution. There are always multiple wrong ones, though.
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Course Syllabus/Team Projects ENAE 483/788D - Principles of Space Systems Design
U N I V E R S I T Y O FMARYLAND
Akin’s Laws of Spacecraft Design - #3
Design is an iterative process. The necessary number of iterations is one more than the number you have currently done. This is true at any point in time.
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Course Syllabus/Team Projects ENAE 483/788D - Principles of Space Systems Design
U N I V E R S I T Y O FMARYLAND
Course Content Overview• Fundamentals of Spacecraft Design
- Principles and tools of Systems Engineering - Vehicle-level design - Systems-level estimation
• Component Detailed Design - Crew Systems - Loads, Structures, and Mechanisms - Power, Propulsion, and Thermal Analysis - Avionics and Software
• Team Projects
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Course Syllabus/Team Projects ENAE 483/788D - Principles of Space Systems Design
U N I V E R S I T Y O FMARYLAND
Content 1: Fundamentals of Space Systems• Systems Engineering • Space Environment • Orbital Mechanics • Engineering Graphics • Engineering Economics • Design Case Studies
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Course Syllabus/Team Projects ENAE 483/788D - Principles of Space Systems Design
U N I V E R S I T Y O FMARYLAND
Content 2: Vehicle/System-Level Design• Rocket Performance • Parametric Analysis • Cost Estimation • Reliability and Redundancy • Confidence, Risk, and Resiliency • Mass Estimating Relations • Resource Budgeting
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Course Syllabus/Team Projects ENAE 483/788D - Principles of Space Systems Design
U N I V E R S I T Y O FMARYLAND
Content 3: Component-Level Design• Crew Systems
– Space Physiology – Human Factors and Habitability – Life Support Systems Design – Radiation Effects and Mitigation
• Loads, Structures, and Mechanisms – Loads Estimation – Structural Analysis – Structures and Mechanisms Design
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Course Syllabus/Team Projects ENAE 483/788D - Principles of Space Systems Design
U N I V E R S I T Y O FMARYLAND
Content 4: Component-Level Design• Propulsion, Power, and Thermal
– Propulsion System Design – Power System Design – Thermal Design and Analysis
• Avionics Systems – Attitude Dynamics/Proximity Operations – Data Management; GN&C – Communications – Other Topics
• Case studies (e.g., last year’s project) – Special lectures for this year’s projects
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Course Syllabus/Team Projects ENAE 483/788D - Principles of Space Systems Design
U N I V E R S I T Y O FMARYLAND
Problem Sets• There is a problem set associated with most of
the lectures • These problem sets will form the knowledge
basis for the midterm and final exams • The material in the lectures will also be crucial
for successful completion of the team projects • There will be extra problems on some sets for
students in ENAE788D • Each problem set has a full solution set posted
after the submission deadline
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Course Syllabus/Team Projects ENAE 483/788D - Principles of Space Systems Design
U N I V E R S I T Y O FMARYLAND
Fall-Term Team Design Exercises• There will be two design projects over the course
of the term • These will be performed by teams of 4-5 students
- the team assignments will be given to you • The results of the design exercise will be
submitted as presentation slides (PowerPoint/Keynote/Open Office or equivalent, and PDF)
• Team grades will be assigned for each design exercise, including adherence to the principles of the engineering communications lecture
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Course Syllabus/Team Projects ENAE 483/788D - Principles of Space Systems Design
U N I V E R S I T Y O FMARYLAND
Course Schedule• Maintained on web site (follow links or
http://spacecraft.ssl.umd.edu/academics/483F20/483F20.index.html)
• Contains links to reference material, problem sets, solution sets, team project details, etc.
• Notes and announcements will also be posted at top of syllabus page as necessary
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Course Syllabus/Team Projects ENAE 483/788D - Principles of Space Systems Design
U N I V E R S I T Y O FMARYLAND
2020 Course Schedule (part 1)
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Course Syllabus/Team Projects ENAE 483/788D - Principles of Space Systems Design
U N I V E R S I T Y O FMARYLAND
2020 Course Schedule (part 2)
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Course Syllabus/Team Projects ENAE 483/788D - Principles of Space Systems Design
U N I V E R S I T Y O FMARYLAND
Lecture #01 Splash Page
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Course Syllabus/Team Projects ENAE 483/788D - Principles of Space Systems Design
U N I V E R S I T Y O FMARYLAND
Grading Policies• Grade Distribution
– 20% Homework Problems – 20% Midterm Exam – 30% Team Design Exercises* – 30% Final Exam
• Late Policy – On time: Full credit – Before solutions: 70% credit – After solutions: 20% credit
• Homework/exams will be submitted via Gradescope
* Team Grades
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Course Syllabus/Team Projects ENAE 483/788D - Principles of Space Systems Design
U N I V E R S I T Y O FMARYLAND
A Word about Homework Grading• Homework is graded via a discrete filter
– ✓ for homework problems which are essentially correct (10 pts)
– ✓- for homework with significant problems (7 pts) – ✓-- for homework with major problems (4 pts) – ✓+ for homework demonstrating extra effort (12 pts) – 0 for missing homework
• A detailed solution document is posted for each problem after the due date, which you should review to ensure you understand the techniques used
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Course Syllabus/Team Projects ENAE 483/788D - Principles of Space Systems Design
U N I V E R S I T Y O FMARYLAND
Selection of Class Projects• Criteria - needs to be
– a significant engineering challenge – of relevance to the current or future space programs – requiring the use of tools from 483 and prior classes – and of appropriate scope for this class.
• Preferable to be appropriate for entry into design competitions – External sets of requirements and deadlines – Fidelity to experience in your careers – Competition as motivation
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Course Syllabus/Team Projects ENAE 483/788D - Principles of Space Systems Design
U N I V E R S I T Y O FMARYLAND
ENAE 484 Spring Projects• ENAE 484 will be split into four sections,
working on separate design topics • Based on set of four themes for 2019 NASA
Revolutionary Aerospace Systems Concept - Academic Linkage (RASC-AL) and X-Hab competitions
• Will incorporate formal Preliminary Design Review (PDR) and Critical Design Review (CDR) with inputs from professionals in the field
• http://rascal.nianet.org
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Course Syllabus/Team Projects ENAE 483/788D - Principles of Space Systems Design
U N I V E R S I T Y O FMARYLAND
RASC-AL Competition• Revolutionary Aerospace Systems Concept –
Academic Linkage (http://rascal.nianet.org) • Sponsored by advanced programs office at NASA
Langley Research Center • Up to 18 universities performing systems analysis
on topics selected by NASA • Competition in Cocoa Beach, FL in June selects
best projects - awards trips to AIAA conferences • Past competition has included MIT, Ga Tech,
Michigan, Va Tech, USC, Penn State, WVU… • Record in 18 years:
4 Best in Theme, 7 Second Place, 8 First Place
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Course Syllabus/Team Projects ENAE 483/788D - Principles of Space Systems Design
U N I V E R S I T Y O FMARYLAND
RASC-AL 2021 Theme 1Durable Low-Mass Lunar Habitat • Support successive two-person crews for 30 days
at lunar south pole • Dry mass not to exceed 6000 kg • Funding NTE $1B/year 2022-2028 including
launch • First mission 2028 • Shall incorporate features to allow future
expansion for more ambitious missions • Shall have extensibility to Mars exploration
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Course Syllabus/Team Projects ENAE 483/788D - Principles of Space Systems Design
U N I V E R S I T Y O FMARYLAND
RASC-AL 2021 Theme 2Minimum Mars Ascent Vehicle • Launch a crew of two from Mars surface to Mars
orbit • Dry mass ≤5000 kg; gross mass ≤20,000 kg • Ready for launch by end of 2034 • Funding limit ≤$2B/yr 2025-2035 • Consider 5t landed system refueled on surface
and 20t system landed fully fueled • Incorporate method for transfer to orbital assets
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Course Syllabus/Team Projects ENAE 483/788D - Principles of Space Systems Design
U N I V E R S I T Y O FMARYLAND
RASC-AL 2021 Theme 3Venus Fly-by Mission • Crew of 4 for Venus fly-by mission to be
completed by end of 2034 • Identify science elements to be carried on mission
and deployed for Venus atmosphere/surface during fly-by
• Consider low-latency teleoperation during fly-by • Identify utility of mission to support/validate
longer-duration human missions to Mars • Budget ≤$2B/yr 2025-2034
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Course Syllabus/Team Projects ENAE 483/788D - Principles of Space Systems Design
U N I V E R S I T Y O FMARYLAND
RASC-AL 2021 Theme 4Human Mission to Ceres • Four-person mission to Ceres with landing
before end of 2049 • Design planetary surface science to be delivered
with mission and operated while in proximity • At least two crew land and perform exploration
on surface of Ceres • Total mission duration ≤5 years • Funding ≤$3B/yr 2035-end of mission (lower
cost concepts preferred)
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Course Syllabus/Team Projects ENAE 483/788D - Principles of Space Systems Design
U N I V E R S I T Y O FMARYLAND
RASC-AL 2021 Theme 5Distributed Lunar Sample Aggregation, Analysis, and Return to ISS • Design a system to collect lunar samples from
multiple locations and transport them to ISS – How can multiple samples be collected and
aggregated for retrieval? – What science can/should be performed at aggregation
site? • Budget ≤$1B/yr 2022-2028; operational in 2028 • Should not use Artemis resources
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Course Syllabus/Team Projects ENAE 483/788D - Principles of Space Systems Design
U N I V E R S I T Y O FMARYLAND
Preparation for ENAE 484• Before the end of this term, you will be sorted
into your project teams and into one of six technical specialties (matrix organization) – Systems Integration (SI) – Mission Planning and Analysis (MPA) – Crew Systems (CS) – Loads, Structures, and Mechanisms (LSM) – Power, Propulsion, and Thermal (PPT) – Avionics, Flight Software, and Simulation (AFSS)
• Sorting is based on your preferences (but no promises!)
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Course Syllabus/Team Projects ENAE 483/788D - Principles of Space Systems Design
U N I V E R S I T Y O FMARYLAND
RASC-AL Program Deadlines• Oct. 15: Notice of Intent deadline • March 4: Proposal (7 pgs. of text; 2 pgs. for
additional graphics) and video (2 min) due • March 29: Teams notified of selection status • May 27: Technical paper (15 pgs.) upload • June 13: Presentation slides due • June 14-17: RASC-AL Forum in Cocoa Beach,
including technical presentation and poster session
• All details available on http://rascal.nianet.org
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Course Syllabus/Team Projects ENAE 483/788D - Principles of Space Systems Design
U N I V E R S I T Y O FMARYLAND
2018 Poster Presentation
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Course Syllabus/Team Projects ENAE 483/788D - Principles of Space Systems Design
U N I V E R S I T Y O FMARYLAND
End Goal: RASC-AL Competition
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Course Syllabus/Team Projects ENAE 483/788D - Principles of Space Systems Design
U N I V E R S I T Y O FMARYLAND
Team Project 1 – ENAE 483/788D• You will be assigned to teams of ~5 students • The assignment is to prepare a technical
presentation detailing a human spacecraft and its launch vehicle
• The submission will be in the form of a Powerpoint slide package with technical details, exterior and interior views of the crew cabin, dimensioned three-view, and a “beauty shot” (high-resolution rendered image)
• ALL images must be produced by the team - no externally-sourced images are allowed!
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Course Syllabus/Team Projects ENAE 483/788D - Principles of Space Systems Design
U N I V E R S I T Y O FMARYLAND
Team Project 2 – ENAE 483/788D• You will be assigned to ~5-person team • Your team will be assigned a specific mission
application requiring a small crew habitat (e.g., pressurized rover, orbital habitat, ascent vehicle)
• Your assignment is to perform a detailed design of the habitat, including such issues as hull size and shape, interior layout, accommodation of hatches, airlocks, and windows, life support system details, power requirements, etc.
• Interim progress report due Nov. 17 • Final report due Dec. 10
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Course Syllabus/Team Projects ENAE 483/788D - Principles of Space Systems Design
U N I V E R S I T Y O FMARYLAND
Design/Build/Test/Evaluate• Hardware design, fabrication, and testing can be
a valuable part of the 483/484 capstone projects • A requirement for this term is to figure out
exactly what you’re building next term • Choice is based on
– Getting design data unobtainable by analysis (e.g., examine human mobility in low gravity)
– Enabling meaningful mission simulations – Providing value for competitions
• Leverage the facilities and infrastructure of SSL
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Course Syllabus/Team Projects ENAE 483/788D - Principles of Space Systems Design
U N I V E R S I T Y O FMARYLAND
Sample Hardware – Display Models
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Course Syllabus/Team Projects ENAE 483/788D - Principles of Space Systems Design
U N I V E R S I T Y O FMARYLAND
Sample Hardware: Working Models
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Course Syllabus/Team Projects ENAE 483/788D - Principles of Space Systems Design
U N I V E R S I T Y O FMARYLAND
Sample Hardware: Full-Scale Mockups
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Course Syllabus/Team Projects ENAE 483/788D - Principles of Space Systems Design
U N I V E R S I T Y O FMARYLAND
Hardware Synergy: Space Systems Lab
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Course Syllabus/Team Projects ENAE 483/788D - Principles of Space Systems Design
U N I V E R S I T Y O FMARYLAND
Hardware Development - Spring 2018
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Course Syllabus/Team Projects ENAE 483/788D - Principles of Space Systems Design
U N I V E R S I T Y O FMARYLAND
X-Hab 2019 - Inflatable Airlock @ JSC
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Course Syllabus/Team Projects ENAE 483/788D - Principles of Space Systems Design
U N I V E R S I T Y O FMARYLAND
Experimental Studies in ENAE 483/4• Traditionally, experimental studies are second-
term (484) activities • Would be ideal if experimental results were in
time to affect 484 design efforts (before PDR in early March)
• Generally get results after CDR (late April) • Intent to put significant effort into design and
(potentially) construction of experimental hardware to ensure results are in time to improve 484 design
• Of course, it’s all dependent on COVID status
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Course Syllabus/Team Projects ENAE 483/788D - Principles of Space Systems Design
U N I V E R S I T Y O FMARYLAND
A Word about CAD• Computer-aided design is an important tool for all
engineering, and an essential tool for a designer - You need to know CAD for your career!
• The best way to learn CAD is to use it - a lot! • In a project team of this size everyone must use
the same system - our preference is NX, but… • Due to remote collaboration, we are going to
specify use of Fusion 360 this year – Free to students – Works on PCs and Macs
• “Resistance is futile”
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Course Syllabus/Team Projects ENAE 483/788D - Principles of Space Systems Design
U N I V E R S I T Y O FMARYLAND
Some Thoughts on Teamwork• Your entire career will be spent doing
engineering in teams • You have had team experiences before (e.g.,
ENAE 100, ENES 100) • This is intended to be as close as possible to your
professional experience, except for a flat organizational structure (i.e., you can’t fire anyone)
• Nothing can guarantee the success of a team - but a lot of things will guarantee its failure
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Course Syllabus/Team Projects ENAE 483/788D - Principles of Space Systems Design
U N I V E R S I T Y O FMARYLAND
Some Thoughts on Professionalism• In this class, like life, you won’t like everyone
you interact with • Nevertheless, you owe everybody respect and
support where necessary • Hopefully it’s not necessary to say it, but there
will be zero tolerance for discrimination on the basis of gender/race/nationality/sexual orientation/etc.
• You also owe your team(s) your best effort and dedication to the project(s)
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Course Syllabus/Team Projects ENAE 483/788D - Principles of Space Systems Design
U N I V E R S I T Y O FMARYLAND
Closing Comments• Focus on numerical analysis and systems
engineering → this is not “hardware-bashing” • Look for your own design solutions → this is
also not “catalog shopping” • Approach everything rigorously with numbers →
this is also also not “adjective engineering” • Manage scope and risk along with cost, mass,
and other design parameters • Be innovative, while remaining real • What you get out of the process is directly
proportional to what you put in
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Course Syllabus/Team Projects ENAE 483/788D - Principles of Space Systems Design
U N I V E R S I T Y O FMARYLAND
Akin’s Laws of Spacecraft Design - #1
Engineering is done with numbers. Analysis without numbers is only an opinion.
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Course Syllabus/Team Projects ENAE 483/788D - Principles of Space Systems Design
U N I V E R S I T Y O FMARYLAND
Today’s Assignments• Go to https://ter.ps/ENAE483L01 and take the short
survey about the class and today’s lecture • Go to the RASC-AL web site (http://rascal.nianet.org)
and get familiar with the material there, particularly the descriptions of the themes and the information on their assessment criteria
• Watch the posted video clip on the design of the Apollo Lunar Module from the episode “Spider” of the HBO mini-series “From the Earth to the Moon”
• Do the rest of the assignment linked at the bottom of the Lecture #01 splash page.
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Course Syllabus/Team Projects ENAE 483/788D - Principles of Space Systems Design
U N I V E R S I T Y O FMARYLAND
Akin’s Laws of Spacecraft Design - #9
Not having all the information you need is never a satisfactory excuse for not starting the analysis.
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