The Design Synthesis Exercise
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Transcript of The Design Synthesis Exercise
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20-04-23
Challenge the future
DelftUniversity ofTechnology
The Design Synthesis Exercise
Joris Melkert, Faculty of Aerospace Engineering
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2The Design Synthesis Exercise
Overview
• The educational philosophy and program• The Design/Synthesis Exercise• Four examples
• Message: For Engineering studies it is better to focus on undergraduate design than on undergraduate research
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3The Design Synthesis Exercise
The educational philosophy and program
Bachelor (3 year)
Master (2 year)
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4The Design Synthesis Exercise
The educational philosophy and program
Aerospace Engineering
(e.g. Calculus& Physics)
General Engineering courses
year 1 year 2 year 3
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5The Design Synthesis Exercise
The educational philosophy and program
Engineering design is the process of devising a system, component, orprocess to meet desired needs. It is a decision-making process (often iterative), in which the basic science and mathematics andengineering sciences are applied to convert resources optimally to meet a stated objective. Among the fundamental elements of the design process are the establishment of objectives and criteria, synthesis, analysis, construction, testing and evaluation.
The engineering design component of a curriculum must include most of the following features: development of student creativity, use of open-ended problems, development and use of modern design theory and methodology, formulation of design problem statements and specification, consideration of alternative solutions, feasibility considerations, production processes, concurrent engineering design, and detailed system description. Further it is essential to include a variety of realistic constraints, such as economic factors, safety, reliability, aesthetics, ethics and social impact.
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6The Design Synthesis Exercise
History• Design Synthesis Exercise:
• Start in 1997 • Based on earlier aircraft design exercises• Planning: 10 weeks - full time - for all BSc students• Conclusion of the Bachelor’s Programme (Q4 of third year)
• 1997: 4 groups of 10 students• 2002: 15 groups of 10 students• 2008: 19 groups of 10 students• 2009: 24 groups of 10 students• 2010: 28 groups of 10 students
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7The Design Synthesis Exercise
The Exercise
• Synthesis of knowledge and skills of Aerospace BSc Curriculum (Student gets an idea about how far they are – w.r.t. knowledge and skills – after 2.5 year)
• Design of• objects (e.g., a 100-seater aircraft)• missions (e.g., to discover water-ice on the Moon)
• Design is much more than to• conceptualize / draw / dimension
• Design is to come up with a solution for a problem/assignment in a structured way:• Analysis of the problem• Define (and review) requirements• Come up with more than one solution• Do a trade-off based on pre-defined criteria
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8The Design Synthesis Exercise
• Each year: innovative ideas• Challenging for both students and staff• All sections in the faculty have to contribute• Very high study efficiency
• Students are extremely motivated• 15 ECTS in 10 weeks is a nominal score!• Hardly any drop-outs!
• Each year: evaluation (may) result(s) in changes• Finalized projects sometimes lead to:
• New insight• Follow-up DSE assignments• Internationally accepted papers• Actual projects (DelFly, DART, …)
The Exercise
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9The Design Synthesis Exercise
• Conclusion of DSE:• Poster• One-day symposium• Professional Jury (ESA, NLR, Dutch Space, European
Universities, …)• Award for the winner!
• DSE book• Each team provides an "executive summary"• Book contains overview of all projects• Not only a nice overview ….• High PR value: we can show “the world” what our students
can do!
The Exercise
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10The Design Synthesis Exercise
As it is now: the main players …
• Organization Committee• “Assignment-evaluation committee” – partially external• Student-assistants• Educational office – admittance to the exercise• Study counselors – handling complaints on admission• Principal tutors – in charge of a project• Coaches – helping the principal tutor (2 per project)• (External clients)• Lecturers and coaches for Project Management/ Systems
Engineering, Oral Presentations and Library Instruction• Jury during the symposium• THE STUDENTS!!
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11The Design Synthesis Exercise
As it is now: prerequisites
1. Completed first year
2. Completed second year1. no more than one course with 5 (max. 5 ECTS)2. all other courses grade 6.0 or more3. all projects completed4. all exercises and practicals completed
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12The Design Synthesis Exercise
As it is now
•No holidays•Supporting courses on project management, systems
engineering, library utilization and oral presentations•Concluded with a report, a poster presentation and a
presentation on the concluding one-day symposium.•Both group and individual performance will be judged•Peer and self evaluation•Team of three coaches (1 principal tutor and 2 additional
coaches from three different discipline groups)•Limited resources (project room, computers, small
budget)•Students as a group are responsible for the outcome
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13The Design Synthesis Exercise
Grading
Technical QualityTeam Organisation Aspects
• Commitment• Attitude• Initiative• Management of Resources• Communication
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14The Design Synthesis Exercise
Peer evaluation
Consistent thoughout project
Something happened??
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15The Design Synthesis Exercise
Geyser Hoppingon Saturn’s Moon Enceladus
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16The Design Synthesis Exercise
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17The Design Synthesis Exercise
METOPE
• Investigate geysers and determine composition• Establish existence of subsurface ocean at south pole of
Enceladus• Characterize this ocean• Investigate surface, subsurface and mantle dynamics• Repeat measurements at different location(s)
• Customer: Dr. Andrew J. Ball, ExoMars Instrument Engineer, ESA/ESTEC
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18The Design Synthesis Exercise
METOPE
• Cost Enceladus lander segment <1000M€ • No contamination of Enceladus environment during and after
mission• Use off-the-shelf technology and hardware, where possible• Operation window 2020-2030• Mission duration lander 6 months • Mass < 500 kg (TBC)
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19The Design Synthesis Exercise
METOPE
Power – Mass – Cost – Reliability???
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20The Design Synthesis Exercise
METOPE
Cost: M€ 806
Peak power: 140 W (6 hrs)
Landing mass: 335 kg
Design down to sub-system level:
• Instrumentation• Propulsion and
Repositioning• Power• Thermal Control• Guidance, Navigation and
Control• Command & Data
Handling• Communication• Structure• Mechanisms
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21The Design Synthesis Exercise
Delfly
Design a Micro Aerial Vehicle that can fly like a bird or insect and is able to do this autonomously with the use of an onboard camera.
Key technical requirements that are imposed on the design are:- Fly using flapping wing technology- Be autonomous using vision-based technology- Be structurally sound
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22The Design Synthesis Exercise
Delfly
Constraints on the design:- Weight: close to 15 g- Wingspan: less than 45 cm- Cost: within a budget of € 5000- Noise level: less than 60 dB at a distance of 15 m- Endurance: at least 5 min- Slow flight: less than 5 m/s- Use of COTS components
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23The Design Synthesis Exercise
Delfly
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24The Design Synthesis Exercise
Delfly
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25The Design Synthesis Exercise
Delfly
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26The Design Synthesis Exercise
Delfly
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27The Design Synthesis Exercise
Delfly