Engineering Design and Research

1
Engineering Designand Research
Welcome to ENGINEERING DESIGN AND RESEARCH. Upon
entering the class please have a seat towards
front of the class (Do not move chairs from one
table to another).
2
Course_OverviewEngineering Design offers
students the opportunity to understand and apply
knowledge / skills required to create transform
ideas concepts into a product that satisfy
specific requirements. Students will experience
design engineering in the creation, synthesis,
iteration, and presentation of design solutions.
This course will maintain a focus on the
history (and future) of engineering, how
engineers apply mathematical, scientific,
creative, and technical knowledge / skills in
creation (refinement) of technical
products/systems. A key approach will be the
employment of a sequential, and iterative design
and development process to solve authentic
engineering tasks/problems.

.
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. The following major topics or chapters
will be included to organize instruction of
appropriate standards and benchmarks and reflect
contemporary engineering industry practices
Principles of Design Engineering Resources
Engineering Design Process Project Management
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Major projects Rockets - Team America Rocket
Challenge Work in a team to develop a rocket
that can launch an uncooked egg 700 feet in air,
deploy recovering system to safely land egg as
close to 45 seconds as possible.Green Energy
Design Research design a concept Green Home
that is off the grid Develop floor plans,
Build to scale modelTopic Investigations
Research specified area of engineering to create
a presentation that includes written report,
power point presentation and informative video
.
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Portfolio/Journal To document and support
participation and progress in the class students
will submit a project portfolio/Journal
documenting the students work. Portfolio format
The portfolio should be presented in the
following format.Title Page - Include name of
challenge, team name and logo, name of student
and mod number.Table of ContentsBody Design
Brief, Class notes (Class reading, video, or
computer research lesson), data, design sheets,
and modifications.Conclusion Was solution
successful? Recommended modifications
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LAB SAFETY It is imperative students practice
proper lab safety and refrains from horseplay in
the technology lab. Students not following lab
safety will not be permitted to work in the lab
setting and will be assigned alternative
lessons.Absolutely no horseplay.Wear safety
glasses during lab activities.Do not distract
students using power tools, cutting tools, hot
glue guns, or electronic devices.Use tools /
equipment only after proper instruction from
teacher.Use tools / equipment correctly, after
receiving teacher permission, and only when
teacher is in classroom.Report all accidents
and safety concerns immediately to instructor.
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• ENGINEERING DESIGN RESEARCH
• Proposed Outline The proposed outline indicates
  one lesson (lasting more then one class period)
  per week.
• INTRODUCTION Engineering, Technology, Society
  and the Environment
• Engineering Technology Chapter 1 pp. 3
  43
• UNIT 1 Principles of Design Part 1
• Lesson 1 Design - A Formal Process Basic
  Drafting Review, CAD,
• Selected text from Mechanical Drawing Books,
  Google Sketch up,
• Lesson 2 Design Requirements and Prioritizing
  Constraints Rocket Design Challenge
  Rocket Modeler, Fundamental rocket design
  principles from Rocket Modeler Text
  Engineering Technology Chapter 2 pp 49 88

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• ENGINEERING DESIGN RESEARCH
• Proposed Outline The proposed outline indicates
  one lesson (lasting more then one class period)
  per week.
• UNIT 2 Engineering Resources
• Lesson 1 Technology Systems Unit2 Lesson1
  T-drive Advanced Tech Eng Dsgn Rsch (
  Lesson Plan) Discuss Technical Systems
  Spin-offs from NASA Construct Test first
  rocket
• Lesson 2 Mathematics Text Engineering Design
  Math Science Applications pp. 429 467
  Construct Test second rocket Text
  Eng Dsgn Chpt 3 pp.. 62-85 Dsgn Team
• Lesson 3 Material Science Text Engineering
  and Technology Chapter 4 Materials Materials
  Processing pp 131 177 Intro Team America
  Rocket Challenge Intro Rocket Sim
• Create Rocket design teams and designate
  responsibilities, Begin design process

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• ENGINEERING DESIGN RESEARCH
• Proposed Outline The proposed outline indicates
  one lesson (lasting more then one class period)
  per week.
• UNIT 1 Principles of Design part II
• Lesson 3A Human Factors Affecting Design
  Ergonomics Packet Capsule design team
  members design their rocket system/ component
• Lesson 3B Environmental and Industrial Factors
  Affecting Design - Text Engineering and
  Technology Chapter 1 Sections 4 Technology and
  Society
• and Section 5 Technology and the
  environment
• Begin construction of rocket components
• Lesson 4 Research and Market Profit Influence on
  design Engineering Your Future Chapter 5
  pp125 143 Complete construction of first TARC
  rocket
• Lesson 5 Refining Design - - Text Engineering
  Design - Chapter 8 Testing and Evaluating
• pp 206 - 220 Analyze initial TARC designs
  Begin secondary design construction of
  modified rocket components

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• ENGINEERING DESIGN RESEARCH
• Proposed Outline The proposed outline indicates
  one lesson (lasting more then one class period)
  per week.
• UNIT 1 Principles of Design
• Lesson 1 Design - A Formal Process
• Lesson 2 Design Requirements and Prioritizing
  Constraints
• Lesson 3A Human Factors Affecting Design
• Lesson 3B Environmental and Industrial Factors
  Affecting Design
• Lesson 4 Research and Market Profit Influence on
  design
• Lesson 5 Refining Design
• UNIT 2 Engineering Resources
• Lesson 1 Technology Systems - Building Blocks
  and Technology Transfer
• Lesson 2 Material Science
• Lesson 3 Mathematics
• Lesson 4 Patent Process

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• ENGINEERING DESIGN RESEARCH
• UNIT 3 Engineering Design Process
• Lesson 1 Trade Offs vs. Creativity in Design -
  Reverse Engineering Info Packet and Product to
  take apart
• Lesson 2 Design Principles and Problem
  Clarification
• Lesson 3 Modeling Techniques
• Lesson 4 Communicating Results

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• ENGINEERING DESIGN RESEARCH
• UNIT 3 Engineering Design Process
• Lesson 1 Trade Offs vs. Creativity in Design
• Lesson 2 Design Principles and Problem
  Clarification
• Lesson 3 Modeling Techniques
• Lesson 4 Communicating Results
• UNIT 4 Project Management
• Lesson 1 Managing Engineering Design
• Lesson 2 Quality Assurance and Product
  Development
• Engineering Technology Chapter 5
  Manufacturing pp 184 - 220

13

• LAB SAFETY It is imperative students practice
  proper lab safety and refrains from horseplay in
  the tech lab.
• Students not following lab safety will lose lab
  privileges and be assigned alternative lessons.
• - Absolutely no horseplay.
• - Wear safety glasses during lab activities.
• - Do not distract students using power tools,
  cutting tools, hot glue guns, or electronic
  devices.
• - Use tools / equipment only after proper
  instruction from teacher and after receiving
  teacher permission.
• Report all accidents and safety concerns
  immediately to instructor.
• Wear safety glasses when using power equipment
• -No tools or equipment to be used when instructor
  is out of class

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• Info Packet Engineering Technology
• Chapter 1 Engineering, Technology, Society, and
  the environment
• Sections 1 - 3 pp.4 25
• In your notes title a sheet Technology history
  Write and answer questions 1 5 as you read
  sections 1 - 3

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• Engineering Design Research L2
• Introduction of Topic Investigation Assignment
• DRILL Identify two historic engineers who lived
  in the 1400s and made contributions that changed
  society
• Please obtain Engineering Your Future Text and
  turn to page 15.
• Read A CASE STUDY OF TWO ENGINEERS
• pp. 15 20
• Identify two engineers discussed and
  contributions to society

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• Identify two engineers discussed and
  contributions to society
• Leonardo Da Vinci
• Envision mechanized innovations including weapon
  design , flying machines,
• Johannes Gutenberg
• First mass producing printing press

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• Go to Engineering Design and Research Topic
  Investigation power point at H\EngineeringDsgnRs
  erch\EDR TopicInvest- Inventor-Engineer.ppt

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Engineering Design Research L3 Visualization
and Graphics

• OBJECTIVE Improve visualization ability and
  become familiar with several common graphical
  communication techniques
• DRILL Explain the concept of visualization and
  how it might help an engineer
• Text Engineering your Future pp 230 - 278

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Engineering Design Research

• Please turn in your Topic Investigation Proposal
• Only two topic Investigations will be permitted
  for any one engineer or invention
• We will List the Topic Investigations
• Once two of the same have been achieved no more
  for that topic will be accepted.

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• Text Engineering your Future pp 230 278
• Complete Research packet

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Engineering Design Research L4 Drafting Review

• OBJECTIVE Identify common measuring tools to
  measure linear distance as we review text to
  prepare to set up first drafting drawing
• DRILL How has technological advancement of the
  last twenty years aided in research efficiency?
• Review Mechanical Drawing Text

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Introduction to Drafting

• Basic Drafting tools include
• T-Square
• 30/60 Triangle
• 45 triangle
• Drafting Scale

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Borders and Title BlocksDraw top of title block
1/2
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Borders and Title BlocksDraw borders to
following measurements
½ inch
¼ inch
¼ inch
1/4 inch
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Borders and Title Blocks
3 1 1 1 1
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Title Block Lettering Guides Draw two light
horizontal lines, one line 1/8 from top of title
block and one line 1/8 from bottom.
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Drafting Scoring ToolExample__/ 2 Line work
.__/ 2 Lettering . __/ 2 Dimensioning__/ 3
Accuracy .values may change according to
drawing

• Be sure to use light construction lines as you
  are laying out (constructing) the drawing.

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Refer to pages 62 -68 of Mechanical Drawing
textbook for information pertaining to
Orthographic ProjectionRefer to pages 130 - 135
of Mechanical Drawing textbook for information on
dimensioning.P. 130 Dimensioning 11.2P. 130
Lines and symbols 11.3 P. 130 Dimension lines
11.4P. 130 Arrowheads 11.5p.130 Extension
LinesP. 133 Placing dimensions 11.2
UnidirectionalP. 134 Theory of dimensioning 11.13
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For the drafting review you are to measure a
visualization block and draw it as an
orthographic, oblique, and isometric
drawing.Only the Orthographic drawing needs to
be dimensioned.
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Engineering L5 Intro to CAD Using Google
Sketch-upDrill What does the acronym CAD stand
for?

• Objective Experiment with various Sketch-up
  tools as we complete a set of tutorials in order
  to gain Fundamental understanding of CAD

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L5 Intro to CAD Using Google Sketch-upGo to
my computer -gt Student Drive -gt tech folder
-gt Sketchup_tutorial video folder. Using the
Google Sketch-up tutorial handout as a guide
complete the described activities to gain an
understanding on how to use this simple CAD
program. After completing the tutorial use
Sketch-Up to complete and orthographic and
isometric view of your drawing block
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Engineering Design and Research L6 Safety
ReviewSafety VideoSafety test

• OBJECTIVE Safety
• DRILL Identify three important safety rules to
  follow while working in the Technology Lab

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How many of the following rules did we get?

• When working around machines with moving and/or
  spinning parts be sure to secure dangling
  jewelry, long hair, loose clothing, and remove
  accessories that might get caught.
• When working with equipment focus on what you are
  doing. Do not speak to people operating machines.
• Stay out of machines Safety Zone (3 foot
  perimeter) if you are not directly involved in
  operation.
• Immediately report all accidents/ injuries to
  instructor.
• Report any unsafe conditions to instructor
• Use tools / equipment only as directed and after
  instruction
• Do not carry hand tools etc. in your pockets

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A few more important safety items

• Tools for cutting should be sharpDull tools
  cause injuries
• Wear safety glasses
• Return tools and equipment to proper location as
  soon as you are finished using it!
• Do not carry long stock by balancing it in
  center.
• Wear an apron to protect / secure clothing
• Do not put sharp tools or hot items near
  neighbors, face, or handle carelessly.
• Do not use electrical tools or items in such a
  way that is likely to cause shock.
• Always leave class with same number of body parts
  that you entered with.

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SAFETY VIDEOThe following video deals with
safety in the Tech Ed lab, as well as general
safety rules to follow outside of class. As
there is so much information presented in video
you will not be asked to take notes. You are
expected to pay attention
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SAFETY QUIZPlease be sure to immediately fill in
name, period and date.Do not write on question
sheet.
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• Consider these two images. One is a serene
  setting found throughout the globe. The other is
  an example of technological beauty. However, in
  order to have the convenience and beauty of a
  bridge, there will be considerable tradeoffs with
  respect to ethical, political, and economic
  constraints.
• Create a note sheet titled Engineering Tradeoffs
  and Constraints and
• 1) Identify Ethical, Political, Economic, and
  Ecological tradeoffs / constraints that must be
  considered in bridge design and location

38

• Engineering Design Research L8
• Design Requirements and Prioritizing Constraints
• Text Engineering Technology Chapter 2 pp 49
  88
• Objective Prioritize Design Constraints to Avoid
  Conflict Between
• Economic, Ethical, Safety and Political Issues.
• DRILL Explain how Economic, Political, and
  Ethical issues can arise in trying to create a
  car to meet the challenges of high gas prices and
  pollution concerns.
• What other issues might arise in the car design?

39

• Engineering Design Research L8
• Design Requirements and Prioritizing Constraints
• Text Engineering Technology Chapter 2 pp 49
  88
• Read pages 48 52
• As you read please answer feedback questions 1
  3 on page 53.
• Look at figure 2.3 and read the supporting text.
  How did the variations between designed and
  constructed walkways cause the failure

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• Kansas City Hyatt Regency Hotel
• Walkway Collapse
• Background
• The Hyatt Regency Hotel was built in Kansas City,
  Missouri in 1978. This hotel consisted of a
  40-story hotel tower and conference facilities,
  which were connected by an open concept atrium.
  Inside the atrium, there were three walkways that
  connected the hotel to the conference facilities
  on the second, third, and fourth floors. The
  atrium was 145 feet long, 117 feet wide and 50
  feet high.

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The Hyatt Regency Walkway Collapse

• Presented By Jonathan Foster
• 4/9/02

42
An Engineering Disaster
Kansas City, Missouri - 1981
43
July 17, 1981

• Approximately 2000 People Came for a Dance
  Competition
• At 705 pm a large crack was heard and two
  walkways collapsed
• Leaving 114 Dead and Left over 200 injured

44
Gillum-Colaco International Inc. (G.C.E. Inc.)
Proposed Design for the Walkways

• wide flange beams were to be used on either side
  of the walkway which was hung from a box beam
• a clip angle was welded to the top of the box
  beam which connected to the flange beams with
  bolts
• one end of the walkway was welded to a fixed
  plate while the other end was supported by a
  sliding bearing
• each box beam of the walkway was supported by a
  washer and nut which was threaded onto the
  supporting rod

45
Proposed Design
46
The Revised Design

• one end of each support rod was attached to the
  atriums roof cross beams
• the bottom end went through the box beam where a
  washer and nut were threaded on
• the second rod was attached to the box beam 4"
  from the first rod
• additional rods suspended down to support the
  other levels in a similar manner

47
Actual Design
48
The Fourth Floor Connection
49
Reasons For Disaster

• Lack of Communication
• Interpreting Preliminary Drawings as Finalized
  Drawing
• Insufficient Review of the Final Design

50
(No Transcript)
51

• Kansas City Hyatt Regency Hotel
• Walkway Collapse
• Timeline
• The project began in 1976 with Gillum-Colaco
  International Inc. (G.C.E. Inc.) as the
  consulting structural engineering firm. They were
  contracted in 1978. The construction on the hotel
  began in the spring of 1978. In December of 1978,
  Havens Steel Company entered the contract to
  fabricate and erect the atrium. The following
  February, Havens changed the design of the
  connection for the second and fourth floor
  walkways from a single to a double rod. During
  construction in October 1979, part of the atrium
  roof collapsed and an inspection team was brought
  in to investigate the collapse. G.C.E. vowed to
  review all the steel connections in the atrium.
  In July 1980, the hotel was open for business. On
  July 17, 1981 at 705 p.m., a loud crack was
  heard as the second and fourth floor walkways
  came crashing down to the ground level. There
  were about 2000 people gathered in the atrium for
  a dance contest. After the collapse, 114 people
  were dead and left more than 200 were injured.

52

• Kansas City Hyatt Regency Hotel
• Walkway Collapse
• Main Reasons for Collapse
• The failure of the Hyatt Regency walkway was a
  combination of things. The most important cause
  was the design in the walkways.
• The proposed design of the walkways was
• A wide flange beams that was used on either side
  of the walkway which hung from a box beam.
• A clip angle that was welded to the top of the
  box beam which connected the flange beams with
  bolts.
• One end of the walkway was welded to a fixed
  plate, whereas the other end was supported by a
  sliding bearing
• Each box beam of the walkway was supported by a
  washer and nut which was threaded onto the
  supporting rod.
• Due to disputes between G.C.E. and Havens, the
  design changed from a single to a double hanger
  rod, simply because Havens did not want to thread
  the entire rod in order to install the washer and
  nut.

53

• Kansas City Hyatt Regency Hotel
• Walkway Collapse
• The actual design consisted of
• One end of each support rod was attached to the
  atrium's roof cross beams
• The bottom end of the rod went through the box
  beam where a washer and nut were threaded on
• The second rod was attached to the box beam four
  inches from the first rod
• Additional rods were suspended down to support
  the second level in a similar manner
• Due to the addition of another rod, the load on
  the nut connecting the fourth floor segment was
  increased. The original load for each hangar rod
  was to be 90kN, but the alteration increased the
  load to 181kN. The box beams were welded
  horizontally and therefore could not hold the
  weight of two walkways. During the collapse, the
  box beam split and the bottom rod pulled through
  the box beam resulting in the collapse.
• Another problem was the lack of communication
  between G.C.E. and Havens. The drawing prepared
  by G.C.E. were only preliminary sketches that
  Havens interpreted to be the finalized drawings.
  Another large error was G.C.E.'s failure to
  review the final design which would have allowed
  them to catch the error in increasing the load on
  the connections.

54

• Kansas City Hyatt Regency Hotel
• Walkway Collapse
• Who's to Blame?
• An investigation took place to determine the
  exact cause of the accident and who was
  responsible for the accident. The investigation
  determined that the flaw was contained in the
  design and the construction techniques were not
  at fault.The construction was sound according to
  the imperfect design. G.C.E was credited with the
  complete fault of the collapse of the walkways.
• These conclusions were arrived at by conducting
  an extensive investigation of the walkways.
  First, they determined how the walkways
  collapsed. The fourth floor collapsed first,
  directly onto the second floor, which in turn
  caused it to collapse. It was also determined
  that the design prints had been changed with
  G.C.E. approval. The investigation found out that
  both designs of the walkways were well below the
  required safety stress required by the Kansas
  City Building Code.
• The engineers at G.C.E. were found of gross
  negligence, misconduct and unprofessional conduct
  in the practice of engineering. Consequently, the
  engineers lost their licenses and many supporting
  firms went bankrupt. The results proved that
  engineers are held responsible for the public's
  safety in the design of their projects and must
  be held accountable if anything goes wrong.

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• Kansas City Hyatt Regency Hotel
• Walkway Collapse
• Background
• Proposed walkway design Constructed
  Walkway

56

• Engineering Design Research L8
• Design Requirements and Prioritizing Constraints
• Text Engineering Technology Chapter 2 pp 49
  88
• Read pages 53 - 63
• As you read please answer feedback questions 1
  4 on page 63.
• Look at figure 2.3 and read the supporting text.
  How did the variations between designed and
  constructed walkways cause the failure

57

• Engineering Design Research L9
• Introduce Rocket Modeler
• http//www.grc.nasa.gov/WWW/K-12/airplane/rktsim.h
  tml

58
Scroll down the screen to the informative
reading.Read the first paragraph, then click
design variables.Answer questions as you
readClick the safe button when finished
Design variables
59
Study the illustration, read the 7 paragraphs and
answer the questions related to rocket safety.
When finished click the BACK button twice to
return to the Design screen.
60

• Engineering Design Research L10
• Design Requirements and Prioritizing Constraints
• Text Engineering Technology Chapter 2 pp 63
  88
• Objective Prioritize Design Constraints to Avoid
  Conflict Between
• Economic, Ethical, Safety and Political Issues.
• DRILL In engineering what are the differences
  between the physical system and the mathematical
  model of the system?
• (answered during section 3 reading today)
• Next slide

61

• Engineering Design Research L10
• Design Requirements and Prioritizing Constraints
• Text Engineering Technology Chapter 2 pp 63
  88
• Read pages 63 - 75
• As you read please answer feedback questions 2
  on page 74 as your drill response
• Answer question 3 page 75 as a continuation in
  notes 4
• Read pages 75 - 79
• As you read please answer (in sentence form)
  feedback questions 1 2 on page 79 as a
  continuation in notes

62

• Following are two of Newtons three Laws of
  Motion, fill in the blanks with the key words.
• NEWTONS LAWS OF MOTION
• LAW 1 AN OBJECT REMAINS AT _____ OR MOVES WITH
  CONSTANT ____ IN A STRAIGHT LINE UNLESS ACTED ON
  BY AN OUTSIDE _____.
• LAW 2 THE ACCELERATION OF AN OBJECT OF CERTAIN
  _______ IS DETERMINED BY THE _______ OF THE FORCE
  ACTING AND THE DIRECTION IN WHICH IT ACTS.

63
LAW 1 AN OBJECT REMAINS AT REST OR MOVES WITH
CONSTANT SPEED IN A STRAIGHT LINE UNLESS ACTED ON
BY AN OUTSIDE FORCE.LAW 2 THE ACCELERATION OF
AN OBJECT OF CERTAIN MASS IS DETERMINED BY THE
SIZE OF THE FORCE ACTING AND THE DIRECTION IN
WHICH IT ACTS.IN YOUR NOTES SECTION COPY THE
FOLLOWINGLAW 3 FOR EVERY THERE
IS EQUAL AND _________ REACTION.
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LAW 3 FOR EVERY ACTION THERE IS EQUAL AND
OPPOSITE REACTION.SO WHAT DOES THIS HAVE TO DO
WITH ROCKETS?A ROCKET ENGINE IS A REACTION
ENGINE. The CHEMICALS INSIDE THE ENGINE BURN WITH
THE EXHAUST BEING FORCE THROUGH A SMALL OPENING
AT THE END (ACTION). THE EXHAUST EXITING THE END
CREATE A REACTIVE FORCE THAT PROPELS THE ROCKET
UP (REACTION) ACTION
REACTION
FORWARD MOTION
EXHAUST
65
LAW 2 THE ACCELERATION OF AN OBJECT OF CERTAIN
MASS IS DETERMINED BY THE SIZE OF THE FORCE
ACTING AND THE DIRECTION IN WHICH IT ACTS.So,
which rocket do you think would travel further A
or BWhy?
B
A
ENGINE
EXHAUST
66
LAW 1 AN OBJECT REMAINS AT REST OR MOVES WITH
CONSTANT SPEED IN A STRAIGHT LINE UNLESS ACTED ON
BY AN OUTSIDE FORCE.
67

• Engineering Design Research L11
• What are some generalizations you observed
  yesterday in design characteristics of a rocket
  achieving the greatest height?
• Using the Rocket Modeler program or the info
  packet titled Rocket Principles and answer the
  two accompanying questions.
• Explain the importance of Center of pressure and
  Center of Gravity in rocket design.
• How can you determine CP and CG of your physical
  model?

68

• Engineering Design Research L11
• Design a model rocket to achieve the greatest
  height using an A8-3 Engine.
• Be sure to fill in the Rocket design specs of
  tested rockets on Design sheets.

69
ROCKET DESIGN AND MODIFICATION CHALLENGEFollowing
the specifications listed below design a rocket
that will achieve the greatest height.. As you
design better performing rockets you are to use
the Print Screen command to record your
information on a Power Point Slide.

• SPECIFICATIONS
• Body Length 16 33cm
• Body Diameter 1.8cm
• Nose Cone 4 12cm
• Fin Width 1.5 5cm
• Fin Length 2 6cm
• Fin Height 0 6cm
• Rocket Engine A8-3

70

• Engineering Design Research L12
• Design Requirements and Prioritizing Constraints
• Text Engineering Technology Chapter 2 pp 49
  88
• Challenge Rocket Modeler, Fundamental rocket
  design principles from Rocket Modeler Rocket
  Design
• Objective Prioritize Design Constraints to Avoid
  Conflict Between
• Economic, Ethical, and Political Issues.
• DRILL Explain how Economic, Political, and
  Ethical issues can arise in trying to create a
  car to meet the challenges of high gas prices and
  pollution concerns.
• What other issues might arise in the car design?

71

• Engineering Design Research L13
• Design Requirements and Prioritizing Constraints
• Power Tool Safety Band Saw, Drill Press, Lathe
  
• Objective Demonstrate correct and safe power
  tool use as we participate in Safety
  demonstration
• DRILL How can we use the construction of a
  prototype rocket to demonstrate safe tool use.

72

• How can we use the construction of a prototype
  rocket to demonstrate safe tool use.
• Use band saw to cut out silhouette of proposed
  rocket to determine center of pressure.
• Use Lathe to turn nose cone
• Use drill press in construction of Engine Lug

73

• Engineering Design Research L6
• Design Requirements and Prioritizing Constraints
• Text Engineering Technology Chapter 2 pp 49
  88

74

• Engineering Design Research L3
• Objective Prioritize Design Constraints to Avoid
  Conflict Between
• Economic, Ethical, and Political Issues.
• DRILL Explain how Economic, Political, and
  Ethical issues can arise in trying to create a
  car to meet the challenges of high gas prices and
  pollution concerns.
• What other issues might arise in the car design?

75

• Engineering Design Research L2
• Objective Identify significant events in
  evolution of human engineering as we read discuss
  technology and history.
• DRILL Identify two historic engineers who lived
  in the 1400s and made contributions that changed
  society

76

• Engineering Design Research L3
• Design is the result of a formal, sequential
  process
• Define the Problem
• Brainstorm Possible Solutions
• Research and Generate Ideas
• Identify Criteria and Constraints
• Explore Possibilities
• Select an Approach
• Develop a Design
• Construct a Prototype
• Test the Design
• Refine the Design
• Manufacture Final Product
• Communicate Results

77

• For cases dealing with design consider the
  importance of a product, its viability, its
  marketability, and its substitutability from a
  managerial as well as engineering perspective.
  The following questions should be addressed in
  these cases.
• -- Is this product essential?
• -- Is designing, manufacturing or marketing this
  product this way the only option?
• -- What are the economic, political and ethical
  side effects of this product?
• -- What are the environmental side effects of
  this product?
• -- What tradeoffs were made between economical,
  ethical, political or
• environmental issues?
• -- Is there another viable approach to this
  design that would more effectively
• address the resulting political, ethical, and
  economic issues?

78

• Engineering Design Research L2
• Complete Reverse Engineering Models assignment
  (described at bottom of chapter 13 handout).
• Be sure to re-assemble model with all parts in
  correct location.
• Accurately sketch a diagram of all of the parts
  and illustrate how they fit together to make the
  device operate (exploded view).
• List at least three ways you feel the device
  could be improved.

79

• Engineering Design Research REVERSE ENGINEERING
• Objective Analyze a common object as we
  de-construct then reconstruct the object. Propose
  modifications that might be applied to improve
  design.
• DRILL Identify three separate engineering fields
  (example structural engineer)

80

• Engineering Design Research L2
• Complete Reverse Engineering Models assignment
  (described at bottom of chapter 13 handout).
• Be sure to re-assemble model with all parts in
  correct location.
• Accurately sketch a diagram of all of the parts
  and illustrate how they fit together to make the
  device operate (exploded view).
• List at least three ways you feel the device
  could be improved.

81

• Text Engineering Your Future
• Chapter Engineering Design pp. 351 377
• Answer handout questions then complete Reverse
  Engineering Models assignment (described at
  bottom of handout).
• Be sure to take notes (sketch or written)
  documenting method of taking object apart so
  object can be re-assembled.