Transcript MEEN 5330 Continuum Mechanics, all references from

MEEN 4263/64 Senior Design
Fall 2014 – Spring 2015
Design Concepts
What will we be doing?
1 Lecture each week, 1 hr
Lab session, up to 3 hours or speakers
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Dean says 3-5 team members, I have allowed a few
with 6, no more than 6 students per team.
Status Reports of Projects
Conceptual Design Review – middle of October
Preliminary Design Review – end of Fall Semester
(last regular class day or “Finals” day)
Mid-Semester Design Review–after Spring Break.
Senior Design Conference/ Critical Design Review –
May 1, 2015
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What is Engineering Design?
The use of math, science, and
engineering knowledge, skills,
techniques to create or modify an item
such that the new or modified item
meets or exceeds desired criteria in the
most efficient manner. Poor design is
“just getting by, or doing the
minimum.”
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What positions do you need?
Outside Mentor/Advisor
Project Leader
Chief Financial Officer (also may be chief
weight/ load/ space officer)
Manufacturing Lead
Documentation Lead
Analyst Lead
Communications / Report Lead
Prof. Peel will be your Program Manager
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The Design Process
Get Project Notebook (Required!)
Develop Objectives
Brainstorm ideas based on objectives, trying not to
be critical.
Conduct a literature search, continually refine.
Select best ideas and make a decision matrix.
Presentations from Industry… ask questions!!!
Discussion on next pages……
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Brainstorming
Don’t be critical of ideas, lots of great
products were “pooh-poohed” at first.
Use your objectives as your guides.
Get in a room with a chalk/white board,
appoint a scribe, take an hour or two.
If a good idea comes, perhaps you change
your objective?
Ask or try to explain your project to a nontechnical person (mother, brother, wife,
friend?)
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Literature Search
Google, Google Image
Bing, Bing Image
Jernigan Library – Online Resources,
Interlibrary Loan, Books, Journals
SCIRUS.COM (technical search)
Patent Searches (uspto.gov, see notes
from Dr. Murphy)
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Decision Matrices – Project
(Cribbing Group)
Project Selection Decision Matrix
Point Value Scale: Best & Easiest = 3 , Worst & Hardest = 1
Project
Design
Manufacturing
Analysis
Consulting
Impeller for
Pump
3
2
3
1
1
10.00
Spinning Wash
Nozzle
1
1
1
2
2
7.00
Cribbing
Mechanism
2
3
2
3
3
13.00
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Creativity Scores
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The Design Process Cont’d
After you have some basic ideas…….
Conduct preliminary calculations
Select materials
Select configuration
Make Technical Drawings
Conduct analyses and optimization
Revise Technical Drawings
Fabricate & Test prototype
Repeat the process
Presentations from Industry… ask
questions!!!
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What is a Good Design?
It works! (Will your design work? How do you know?)
You have considered several alternative designs and
determined this is the best one. (How did you consider the
other designs or ideas? Calculations, Decision matrices,
spreadsheets, other research?)
The design has a cost suitable for its application.
(Determined through price quotes, similar projects, inclusion
of all expenses, especially labor)
The design can be reasonably manufactured. (Has
something similar been fabricated before? Equipment?
Expertise? Labor time?)
It can be completed in a realistic time. (Does your schedule
allow enough time to complete your design? Buffer time?)
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Detailed (Implemented) Design
You should have good technical drawings
now..
Preliminary & Detailed analyses?
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When simulated, does the design work?
Can you fabricate it as designed?
Is the cost reasonable?
Detailed drawings, exploded views, other?
List of needed materials,
Machine shop work?
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What is a Technical Drawing?
It is a professional-level drawing that has enough
info for a qualified machinist/ fabricator/technician to
fabricate what you have designed.
From:
www.cadster.co.uk/index.html
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Resources from the Book!
Definition of Design
Engineering Ethics
Project Management
Modeling & Simulation
Material Selection
Stress Analysis
Engineering
Economics, cost
analysis
Design Optimization
Statistics, Statistical
decisions
Reliability
Safety
Ch 1: Engineering Design
Ch 2: Product Development Process
Ch 3: Problem Definition and Need Identification
Ch 4: Team Behavior and Tools
Ch 5: Gathering Information
Ch 6: Concept Generation
Ch 7: Decision Making and Concept Selection
Ch 8: Embodiment Design
Ch 9: Detail Design
Ch 10: Design for Sustainability and the
Environment
Ch 11: Materials Selection
Ch 12: Design with Materials
Ch 13: Design for Manufacturing
Ch 14: Risk, Reliability, and Safety
Ch 15: Quality, Robust Design, and Optimization
Ch 16: Economic Decision Making
Ch 17: Cost Evaluation
Ch 18: Legal and Ethical Issues in Engineering
Design (available online)
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Weekly Status Report/Assignments
Fill in names, team roles, email, cell #
Make sure you have a valid Team Mentor/ Consultant
(technical background)
Describe current work, list problems, concerns
List next week’s objectives, list of materials needed, etc.
Team leaders should fill out status report each week, write
the tasks each person will do, follow up on each task.
Each team member should know what their tasks are each
week, and be prepared to report on them, at weekly
meetings.
Let me know of needed materials, 3D printing, etc well
before needed dates.
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Time Management Assignment
A. List 5 things you can do to improve
your time management.
B. Write about what you have done to
implement each of them.
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