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Engineering Design and Research

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Title: Engineering Design and Research


1
Engineering Design and 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_Overview Engineering 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.

.
3
. 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
4
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 model Topic Investigations
Research specified area of engineering to create
a presentation that includes written report,
power point presentation and informative video
.
5
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 Contents Body Design
Brief, Class notes (Class reading, video, or
computer research lesson), data, design sheets,
and modifications. Conclusion Was solution
successful? Recommended modifications
6
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.
7
  • 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

8
  • 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

9
  • 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

10
  • 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

11
  • 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

12
  • 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

14
  • 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

15
  • 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

16
  • 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

17
  • Go to Engineering Design and Research Topic
    Investigation power point at H\EngineeringDsgnRs
    erch\EDR TopicInvest- Inventor-Engineer.ppt

18
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

19
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.

20
  • Text Engineering your Future pp 230 278
  • Complete Research packet

21
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

22
Introduction to Drafting
  • Basic Drafting tools include
  • T-Square
  • 30/60 Triangle
  • 45 triangle
  • Drafting Scale

23
Borders and Title Blocks Draw top of title block
1/2
24
Borders and Title Blocks Draw borders to
following measurements
½ inch
¼ inch
¼ inch
1/4 inch
25
Borders and Title Blocks
3 1 1 1 1
26
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.
27
Drafting Scoring Tool Example __/ 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.

28
Refer to pages 62 -68 of Mechanical Drawing
textbook for information pertaining to
Orthographic Projection Refer to pages 130 - 135
of Mechanical Drawing textbook for information on
dimensioning. P. 130 Dimensioning 11.2 P. 130
Lines and symbols 11.3 P. 130 Dimension lines
11.4 P. 130 Arrowheads 11.5 p.130 Extension
Lines P. 133 Placing dimensions 11.2
Unidirectional P. 134 Theory of dimensioning 11.13
29
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.
30
Engineering L5 Intro to CAD Using Google
Sketch-up Drill 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

31
L5 Intro to CAD Using Google Sketch-up Go 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
32
Engineering Design and Research L6 Safety
Review Safety Video Safety test
  • OBJECTIVE Safety
  • DRILL Identify three important safety rules to
    follow while working in the Technology Lab

33
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

34
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.

35
SAFETY VIDEO The 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
36
SAFETY QUIZ Please be sure to immediately fill in
name, period and date. Do not write on question
sheet.
37
  • 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

40
  • 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.

41
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.

55
  • 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
FOLLOWING LAW 3 FOR EVERY THERE
IS EQUAL AND _________ REACTION.
64
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 CHALLENGE Following
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.
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