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SYSTEMS DESIGN REVIEWTeam Bass
AGENDA• PROJECT BACKGROUND AND
REVIEW
• PROJECT REQUIREMENTSo CUSTOMER REQUIREMENTSo ENGINEERING REQUIREMENTSo HOUSE OF QUALITY
• FUNCTIONAL DECOMPOSITION
• CONCEPT SELECTIONo MORPHOLOGICAL CHARTo PUGH CHART
SYSTEM ARCHITECTURE FEASIBILITY ANALYSIS RISK ASSESSMENT AND PROJECTION PROJECT PLAN
o TEST PLANo ACTION ITEMS MOVING FORWARDo CRITICAL PATH FOR OUR PROJECT
EFFICIENCY AND PHASE REVIEW
BACKGROUND• Suction feeding in telost fish.
• Particle Image Velocimetry (PIV) used to visualize flow externally.
• Can Doppler Ultrasound (DUS) be used to visualize flow internally?
PROBLEM STATEMENT
• Currently: no understanding of flow inside mouth.
• Goal: design a test rig to utilize PIV & DUS to obtain full velocity profiles.
• Use PIV as control and compare DUS for internal flow data.
CUSTOMER REQUIREMENTSNumber Reasoning Customer Requirements
Customer Weights
1 Data collection Obtain full external velocity of entire event area 3
2 Safety Safe for humans 3
3 Data collection Utilize current PIV technology and equipment 3
4 Data collection Utilize current DUS technology and equipment 3
5 Ease of use Utilize one interface for data acquisition and control 3
6 Data collection Automatic acquisition triggering 3
7 Data Collection Track target to assure sensors are within functional distances from the fish
3
8 Safety Safe to use for fish 3
9Portability Manageable test rig size for two researchers people to move
2
10 Funding Manageable budget 2
11 Ease of use Automated fish feeder 1
12 Aesthetics Professional looking product (determined by users) 1
13 Ease of use Close proximity to power 1
14 Safety Fish tank filter and pump on the tank 1
15 Safety Cleanable tank 1
16 SafetyMinimal impact on the fish from motion of rig and moving the fish
2
17 Ease of use Rig can be used on multiple species of suction feeding fish 2
18 Longevity Lasts 5 years with 20-30 tests per day 2
19 Data collection Comparable data to previous tests 3
20 Data collection Obtain full internal velocity profile 3
21 Data collection Reliable with respect to consistency of acquiring data 3
ENGINEERING REQUIREMENTS
Number Engineering RequirementsTarget
Acceptable Units
1Distance from vertical plane of data acquisition to vertical center plane along the length the of fish
0 < 5 Millimeters
2 External area captured by PIV with the center located at the lower lip of the fish
60 > 25 Centimeters²
3Maximum size of captured internal area with origin at lower lip, X pointed along the fish and the y pointed vertically up
12 X 10 > 8 X 7 X in cm by Y in cm
4 Rate of data capture 500 500 Frames/sec
5 Amount of water spilled on the user 0 < 0.25 Gallons
6 Distance from outlet 1 < 3 Meters
7 Total cost 250 < 1000 Dollars
8Space allocated on vibration isolation table
1 X .875
< 2 X 1.875
Meters x Meters
9 Customers opinions on the professional aesthetics of the rig
Yes Yes Professional Opinion
10 Repeatability of position of fish with respect to the center of the field of view
1 < 5 Centimeters
11 Number of different acceptable types of bait for automated feeding
5 > 0 different types of bait
12 Number of independent computers used for imaging
1 < 2 Number of computers
13Follow all requirements listed in New York State health and safety Law section 50 with regards to lasers
Yes Yes Binary
14 Distance between Doppler sensor and the side of the fish
0.5 < 5 Centimeters
15 Weight 23 < 45 Kilograms
NumberEngineering Requirements
TargetAccept
able Units
16Supported fish sizes
35 X 16 X 16
> 20 X 10 X 10
L in cm by H in cm by W in cm
17Dimensions of flow profile
3D 2DDimensions with
time
18 Percent of times rig triggers data acquisition during an event
100 > 90% of data collected
19 Volume of water from the tank filtered in an hour
150 > 75 Gallons / hour
20 Percent tank accessible without disassembly by the customer
100 > 70% of tank surface
area
21 Predicted allowable wear on mechanical system found with simulation
10 > 5Years of
continuous use
22 Manufactures supplied data on life of all individual electronic components
10 > 5 Years of continuous use
23Base sizes of fish tanks supported
any> .5 X
1 Meters x Meters
24Amount of time required to assemble the rig into a fully functional state by the customer
1 < 2 Hours
25Time required for cleaning tank by the customer to a state that does not harm the fish
0.5 < 1.5 Hour
26 Follows all state and national IACUC standards
Yes Yes Binary
27 Placement of bait with respect to center of field of view aligned with laser plane
0.5 2 Centimeters
28Distance between where the rig thinks the fish's mouth is respect to where it actually is
1 4 Centimeters
HOUSE OF QUALITY AND REQUIREMENTS
Customer Requirements
Engineering Requirements
Proportionality of Engineering Requirements
Strength and Correlation of CR and ER
Difficulty and Importance
ScaleImportance of CR3 = most important21 = least important
ScaleCorrelation b/t CR & ERx = strongest (3)y = medium (2) z = weakest (1)
ScaleDifficulty to Achieve3 = hardest21 = easiest
Team Importance = Σ(correlation value)(customer importance)
WHY
HOW
FUNCTIONAL DECOMPOSITION
Critically Important Aspects & Use in
Concept Selection
A) Plant Bait
B) Locate/Track Fish
C) Trigger Data
E) Aggregate Data
G) Simulate Flow
Dr. Day’s Responsibility
MORPHOLOGICAL CHART
CONCEPT SELECTION
SYSTEM ARCHITECTURE
FEASIBILITY ANALYSIS
3D Fish Model:How long will it take to create a fish model and how will we test for functionality that resembles a real fish?
- Wait time for rapid prototyping machines: Unknown- Time to print all parts (using pre-existing CAD files): 3 Days- Time to assemble components: 5 Days- Time to create and assemble “Skin”: 7 Days- Time for complete integration of pump: 5 Days- Time for testing/adjustment of flow created: 10 Days (use iterative process of comparing flow data and adjusting pump settings)
Total Time for Creation: 30+ Days
3D Fish Model:How much cost will be involved in the creation of the 3D fish model?
- CAD files: $0- 3D printing cost: $0? (Possibly no cost to create components in the Brinkman Lab)- Latex sheet (12 in. x 12 in.): $8 (per sheet)- Electric pump: $25- Various tubing and accessories: $30
Total Cost: $63+
FEASIBILITY ANALYSIS CON’T
Test Rig Scaffolding Structure: How much will the test rig structure weight and how much will all the materials cost?
- Top of tank dimensions: 0.6 m x 0.6 m- Material to use: 6061 Aluminum- Approximate size/number of pieces: 0.05 m x 0.02 m x 0.6 m (4 pieces)- Density of 6061 Aluminum: 2700 kg/m^3
Total Weight of Scaffolding Structure: 6.4 kg
Total Cost of Raw Material: $55 (Price does not include manufacturing work to create fixturing)
Fish Feeder:How do we create a fish feeder that consistently delivers the right amount of food at the right time (and be compatible with a wide range of food sources)?
- Benchmark against “fish feeders” that are on the market today (Fish Mate F14).- Brainstorm ideas on how to adapt a product meant for dry food to accommodate live bait.- Perform extensive testing to validate subsystem concept.
FEASIBILITY ANALYSIS CON’T
Data Collection:How much data will be generated during test operation?
- Hz for PIV Camera (640 x 480 Resolution): 500- Hz for DUS Probe: 120 (24 kb/sec)- Seconds captured: 6- Number of pixels per frame: 307200- Number of bits per pixel: 32- Number of bytes per bit: 8
Total Data Quantity: 4 GB/test
Doppler Ultrasound:How far from the target can we place the probe to still achieve a high enough frame rate?
- Speed of sound in water: 1497 m/sec- Line Density per frame: ~64- Desired frame rate: 500 frames/sec
Maximum Distance From Target: 2.3 cm
RISK ASSESSMENT SCALE
RISK ASSESSMENT
RISK ASSESSMENT CON’T
RISK ASSESSMENT CON’T
RISK PROJECTION
PROJECT PLAN
PROJECT PLAN
PROJECT PLAN
PROJECT PLAN
PROJECT PLAN BY PHASEEXAMPLES OF TASKS
TEST PLAN AND ACTION ITEMS FOR PHASE 3
Draft Test Plan
Simulations for mechanical components
Use 3D Model fish for flow rate testing
Test and Behavior research on fish in varying environments
Prototype automated fish feeders
Continue to develop test plans
Action Items for Phase 3
Call Dr Schwartz specs on Ultrasound machine (including features and capabilities)
Continue to demo equipment with Dr Day
Order fish from fish farm and set up environment and behavior testing
Confirm price of 3D printing and access to materials for 3D model fish
Contact vendors, technicians, and experts (SME)
Research/datasheets for individual components
PHASE REVIEW AND EFFICIENCYReasons for Inefficiency:
• Didn’t understand scope
• Inefficient methods
• Task not delegated to enough people
Ways we Improved:
• Created new methods (ex PUGH)
• Split up tasks and asked for help
Ways to be More Efficient in the Future:
• Be honest about how large a task is
• Be realistic about time to complete
• Always update progress on time
QUESTIONS?