Transcript P13675 Bike Helmet Mirror System

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Rob Fish (Industrial Designer)
Zachary Kirsch (Mechanical Engineer, PM)
Martin Savage (Mechanical Engineer)
Olivia Scheibel (Mechanical Engineer)
Henry Woltag (Industrial and Systems Engineer)
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Guide
◦ Mr. Rick Lux

Customer
◦ Dr. B. Brooks

Faculty Support
◦ Dr. M. Gomes
◦ Dr. M. Lam
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Sponsor
◦ RIT MSD Project Office
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Introduction and Project History
Customer Needs
Concept Selection
Risk Assessment
Current rear view mirrors systems for bicycles
are clumsy, unattractive, poor quality, too
expensive, or have a small viewing range.
Our solution is to create a low cost alternative
that requires no power to operate, and
attaches to any
helmet.
Marketability
Functionality
Inexpensive
Adjustable w/o Tools
Easy to Store
Aesthetically Pleasing
Colors
Holds Mirror
Orientation
Ergonomics
Customizable
Provides Wide Viewing
Angle
Light Weight
Adjustable w/o Tools
Comfortable
Shape
Detaches from Helmet
Safe to Ware
Adjustable Mirrors
Doesn’t Compromise
Helmet Integrity
Adjustable Mirrors
Green Process
Clear, Correctly
Oriented Image
Design For Disassembly
Recyclability
No Power Input
Env. Friendly Materials
Environmental
Considerations
Fog / Rain Resistant
Withstand Elements
Ability to block out Sun
Doesn't Increase Wind
Resistance
Attaches to Multiple
Types of Helmets
Durable
Minimizes Obstruction
to Forward view
Customer Needs
1. Safe to wear
Team’s
Evaluation
9
2. Provides a wide angle view behind the cyclist
9
3. Holds mirror orientation as set by user
4. Minimizes obstruction to the cyclist’s forward field of
vision
5. Attaches to a typical helmet without compromising the
helmet’s integrity
6. Is lightweight and comfortable to wear
9
7. Is durable
9
8. Provides a clear, correctly oriented image
9
9. Is adjustable to provide optimal view for the rider
9
10. Is inexpensive ($10-20) for the consumer
3
11. Detaches from the helmet
3
12. Can be adjusted without the use of tools
3
13. Requires no power input
3
14. Is aesthetically pleasing
3
15. Refrains from significantly increasing wind resistance
1
16. Is fabricated in an environmentally friendly way
1
9
9
9
Source
Specification (Metric)
S1
CN 13
Power required for operation
Watts
-
0
S2
CN 12
Number of tools required for
adjustment
Quantity
1
0
S3
CN 10
Materials cost
Dollars
30
20
S4
CN 2,5,11
Number of helmet styles system can
attach to
Market value projection, no
restriction on prototype
beyond budget
Quantity
-
3
Minimum value
S5
CN 1,5,7
Durability - survive drop from height
ft
-
6
Dropped with mirror system
attached to helmet
S6
CN 1,6
Weight
lbs
0.775
0.175
S7
CN 1,3,7,15
Survive wind speeds
mph
45
60
S8
CN 1,5,11
Breakaway force (if snagged on object)
lbs
-
45
S9
CN 2,3
Rear image angle
degrees
90
110
S10
CN 1,4,15
Projected area of main mirror in
direction of motion
in2
18
8
S11
CN 16
Recyclability of materials used
%
-
100
S12
CN 1,5,7,11,12
Mirrors and supports removable from
helmet
Yes/No
-
Yes
S13
CN 1,4
Lateral forward viewing angle
degrees
-
180
S14
CN 2,3,8,9
Distance behind at which vehicles are
visable
ft
100
200
S15
CN 1,3,8
Image oriented properly
Yes/No
-
Yes
Unit of Measure Marginal Value Ideal Value Comments/Status
No power input
Mirrors maintain desired
position and orientation up to
these speeds.
Based on NHTSA neck injury
criteria
Based on benchmarking
Exceptions: mirrors, adhesives
Interface between helmet and
supports need not be
removable
Does not block lateral vision
when looking straight ahead
Based on hand calculations
1
Improper mirror
orientations and
alignment.
Image may be
inverted, out of
focus, or the
projected image may
not line up with
target.
2
System may not be
structurally sound,
Improper
natural frequency
structural design.
may pose stability
issues.
3
Exceeding the
desired
manufacturing
cost.
System will be
unable to be
manufactured within
desired price range.
4
Unable to adhere
to NHTSA
standards
Prototype unable to
be manufactured for
retail
Cause
Lack of
optics
experience
within the
team
Lack of
vibration
experience
within the
team
Cost of
materials to
build
system
Strict
standards
conflicting
with stability
needs
3
3
3
2
3
3
2
3
Importance
Effect
Severity
Risk Item
Likelihood
ID
Action to Minimize Risk
Owner
9
Research optics, determine
faculty and other experts
who can assist with optical
design.
Martin
Savage
9
Research vibrations,
determine faculty and other
experts who can assist with
structural design.
Olivia
Scheibel
6
Research lower cost
alternatives for system
components.
Zachary
Kirsch
6
Be knowledgeable of
applicable standards.
Henry
Woltag
6
7
Cause
Prototype cannot
be completed in
time
Item lead times
not taken into
consideration
Do not meet
Customer needs
Dissatisfied
customer.
Poor needs
identification/
inability to
achieve needs in
time
Poor
documentation
Disorganization,
future project
improvement
difficult
Consistent lack of
documentation
updating
Project does not get Lack of
completed to
Communication.
8 Group Dysfunction
required
Poor
specifications.
Compromising.
Importance
5
Parts are ordered
too late
Effect
Severity
Risk Item
Likelihood
ID
2
2
4
2
2
1
2
1
1
Action to Minimize Risk
No procrastination. Parts
needed identified as early as
possible. Order well in
advance.
Owner
Henry
Woltag
4
Be sure to properly and
realistically identify
customer needs, not just
ideal needs.
Zachary
Kirsch
2
Documentation will be kept
consistent through weekly
checks of notes/files/
previous notes.
Henry
Woltag
1
Consistent communication
and project duty
management. Expected to
complete individual
responsibilities.
Zachary
Kirsch
100%
40
90%
35
80%
Rating
30
70%
25
60%
20
50%
40%
15
30%
10
20%
5
10%
0
0%
Risk Rating
Cumulative Percent
MSD-P13675: Bike Helmet Mirror System
Meet Group and Guide
Identify Team Leader
Becomer Familiar with EDGE
Prepare Code of Ethics
Identify Customer
Identify Customer Needs
Identify Engineering Specifications
Prepare Function Decomposition
Prepare Affinity Diagram
Prepare Morphological and Pough Charts
Concept Selection
Asses Risks and Mitigation
Systems Design Review
Reevaluate System Design
Select Optical System
Select Frame System
Perform optical analysis
Perform structural analysis
Perform CFD analysis
Prepare Bill of Materials
Create CAD models
Detailed Design Review
Reevaluate Detailed Design
Order Materials
Week 1
Su M T W R F
S
Week 2
Su M T W R F
S
Week 3
Su M T W R F
S
Week 4
Su M T W R F
S
MSD-P13675: Bike Helmet Mirror System
Meet Group and Guide
Identify Team Leader
Becomer Familiar with EDGE
Prepare Code of Ethics
Identify Customer
Identify Customer Needs
Identify Engineering Specifications
Prepare Function Decomposition
Prepare Affinity Diagram
Prepare Morphological and Pough Charts
Concept Selection
Asses Risks and Mitigation
Systems Design Review
Reevaluate System Design
Select Optical System
Select Frame System
Perform optical analysis
Perform structural analysis
Perform CFD analysis
Prepare Bill of Materials
Create CAD models
Detailed Design Review
Reevaluate Detailed Design
Order Materials
Week 5
Su M T W R F
S
Week 6
Su M T W R F
S
Week 7
Su M T W R F
S
Week 8
Su M T W R F
S
Week 9
Su M T W R F
S
Week 10
Su M T W R F
S
Week 11
Su M T W R F
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