amphibious vehicle
Post on 14-Feb-2016
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AMPHIBIOUS VEHICLE
The Team
The Project Overview
The Design & Prototype
The Testing
The Conclusion
The Acknowledgements
Michael GondhiSteve Brink
Steve DeMaagd
Jasper GondhiTyler
Vandongen
THE TEAM
THE GOAL
Colossians 3:17
“And whatever you do, whether in word or deed, do it all in the name of the Lord Jesus, giving thanks to God the Father
through him.”
Design and develop a working prototype of human powered amphibious vehicle (AV) by applying the principles of an engineering design process from concept to production.
PROJECT OVERVIEWDESIGN & PROTOTYPETESTING CONCLUSION THANK YOU
PRIMARY GOAL
Speed on Land of 15 mphSpeed on Water of 2 mphSuccessful Braking on LandSuccessful Transitions between Land and Water
PROJECT OVERVIEWDESIGN & PROTOTYPETESTING CONCLUSION THANK YOU
SECONDARY GOALS
Land: Speed Braking Turning radius Stability
Design GoalsWater:
Buoyancy Stability Getting on/off Turning radius
PROJECT OVERVIEWDESIGN & PROTOTYPETESTING CONCLUSION THANK YOU
Design Norms
Trust
Transparency
Stewardship
PROJECT OVERVIEWDESIGN & PROTOTYPETESTING CONCLUSION THANK YOU
Human-powered recreation vehicle marketCustomer: Lake house owners
Flood region serviceCustomer: Disaster relief agencies and NGO’s
Scope
PROJECT OVERVIEWDESIGN & PROTOTYPETESTING CONCLUSION THANK YOU
THE DESIGN & PROTOTYPE
PROJECT OVERVIEWDESIGN & PROTOTYPETESTING CONCLUSION THANK YOU
FRAMEDRIVE TRAINPROPULSIONSTEERINGFLOTATION
PROJECT OVERVIEWDESIGN & PROTOTYPETESTING CONCLUSION THANK YOU
FRAME
PROJECT OVERVIEWDESIGN & PROTOTYPETESTING CONCLUSION THANK YOU
FRAME – Finite Element Analysis
MODEL W/ FEA
Maximum Deflection: 0.08 in.
Direction of Force
PROJECT OVERVIEWDESIGN & PROTOTYPETESTING CONCLUSION THANK YOU
DRIVE
TRAIN FRONT AXLE
PADDLE WHEEL AXLE
PROJECT OVERVIEWDESIGN & PROTOTYPETESTING CONCLUSION THANK YOU
0.75 in. 0.475 in.
DRIVE TRAIN – FRONT AXLE
Minimize Axle Length: 66 in. - 62 in.
PROJECT OVERVIEWDESIGN & PROTOTYPETESTING CONCLUSION THANK YOU
DRIVE TRAIN – PADDLE WHEEL AXLE
Initial safety factor used for flotation = 2
Result: Vehicle floats too much and paddle wheels don’t hit water as they are placed with respect to the flotation
Change: Paddle wheel assembly lowered to match necessary height.
PROJECT OVERVIEWDESIGN & PROTOTYPETESTING CONCLUSION THANK YOU
Aluminum Tubing
Aluminum Tubing
Flotation
Flotation
Wheels
Wheels
Paddle Wheel Axle
Paddle Wheel Axle
FLOTATION
PROJECT OVERVIEWDESIGN & PROTOTYPETESTING CONCLUSION THANK YOU
FLOTATIONWeight
Rider 200lbfVehicle 200lbfTotal 400lbfMargin Factor 1.5
Overall Weight 600lbf
PROJECT OVERVIEWDESIGN & PROTOTYPETESTING CONCLUSION THANK YOU
FLOTATION
ResultsCapacity 873.36lbfPlane Load 124.77lbf/inOverall Weight 600.00lbfDraft 4.81inFreeboard 2.19in
PROJECT OVERVIEWDESIGN & PROTOTYPETESTING CONCLUSION THANK YOU
THE MANUFACTURING
PROCESS
PROJECT OVERVIEWDESIGN & PROTOTYPETESTING CONCLUSION THANK YOU
Material: Aluminum 6061
High strength to weight ratio
Shape: Circular Tubing Ease of welding
Diameter: 3 inch Size donated from Steelcase
Thickness: 1/8 inch Ease of welding Strength
Frame Specifications
PROJECT OVERVIEWDESIGN & PROTOTYPETESTING CONCLUSION THANK YOU
Frame Created Jig
Fish-mouthed Tubing Aluminum MIG welded Smoothed Welds
PROJECT OVERVIEWDESIGN & PROTOTYPETESTING CONCLUSION THANK YOU
Material: 4130 Cold Rolled Steel
According to Calculations
Diameter: 7/8 inch Available from Machine Shop
Length: 62 inches According to Frame Width
Drive Train Specifications
PROJECT OVERVIEWDESIGN & PROTOTYPETESTING CONCLUSION THANK YOU
Drive Train
Drilled Ends: .322 DiameterTapped Ends: 3/8-26 TapManufactured Bearing AdaptersManufactured Gear Hub AdaptersPurchased Bearings w/ Set ScrewsWeld Gear Hub onto Axle
PROJECT OVERVIEWDESIGN & PROTOTYPETESTING CONCLUSION THANK YOU
Material: Closed Cell Polystyrene
High Buoyancy Low Cost Availability
Coating: Epoxy, Resin (Hardener), Fiberglass Cloth
High Strength Ease of Manufacture
Dimensions: 7 in. x 18 in. x 96 in. According to Buoyancy Calculations
Flotation Specifications
PROJECT OVERVIEWDESIGN & PROTOTYPETESTING CONCLUSION THANK YOU
FlotationCNC Hotwired FoamSquare Jig for RouterRouted Square HoleConnected Bolts into WoodFiber-glassed
PROJECT OVERVIEWDESIGN & PROTOTYPETESTING CONCLUSION THANK YOU
Material:
Land: Stainless Steel Cable Durable Water Resistant Ease of Manufacture
Water: Polyurethane Sheet Availability Ease of Assembly Effectiveness
Steering Specifications
PROJECT OVERVIEWDESIGN & PROTOTYPETESTING CONCLUSION THANK YOU
Steering
Cut Aluminum Block to Raw 3 in. Cube Programmed Bridgeport Mill• Milled “U-Shape contour”• Milled “Grooves” additional grip• Milled and Tapped Holes
PROJECT OVERVIEWDESIGN & PROTOTYPETESTING CONCLUSION THANK YOU
Material:
4130 Steel Axle and Sleeves For High Strength and Welding Purposes
Plastic Paddles and Housings Availability, Effectiveness, and Water
ResistantDimensions:
Axle: ¾ in. diameter To Fit Paddle Wheels
Paddle: 19 in. diameter Common Paddle Size
Propulsion Specifications
PROJECT OVERVIEWDESIGN & PROTOTYPETESTING CONCLUSION THANK YOU
Propulsion
Machined four sleeves Welded Gear Hub to Inner Sleeve Screwed in Paddle Wheels Spaced Housings Attached Paddle Wheel Assembly to Frame
PROJECT OVERVIEWDESIGN & PROTOTYPETESTING CONCLUSION THANK YOU
Seating: 3 Aluminum “L- slider brackets” on each side
Adjustable seat for all riders
1 inch square tubing Available in Engineering Shop
Braking: Used “center-pull” bicycle brakes
Simplicity Proven Design
Braking and Seating Specifications
PROJECT OVERVIEWDESIGN & PROTOTYPETESTING CONCLUSION THANK YOU
Braking and SeatingSeating:
• Weld slider brackets• Drill holes on both
sides• Weld seat sectionals• Slide material
Braking:• Extend brake cable• Attach brakes to
handles
PROJECT OVERVIEWDESIGN & PROTOTYPETESTING CONCLUSION THANK YOU
TESTINGLAND
WATERTRANSITION
PROJECT OVERVIEWDESIGN & PROTOTYPETESTING CONCLUSION THANK YOU
Testing on Land
Speed Braking Turning Reverse*
PROJECT OVERVIEWDESIGN & PROTOTYPETESTING CONCLUSION THANK YOU
Speed DataTrial # Speed (mph)Trial 1 11.76 mphTrial 2 12.40 mphTrial 3 14.04 mph
Average Speed 12.73 mph
Top Speed 14.04 mphPROJECT OVERVIEWDESIGN & PROTOTYPETESTING CONCLUSION THANK YOU
Speed Test Method
PROJECT OVERVIEWDESIGN & PROTOTYPETESTING CONCLUSION THANK YOU
Braking Data
Trail # Speed (mph)Stop Distance (ft)
Trial 1 9.48 mph 14 ftTrail 2 12.26 mph 26 ft
PROJECT OVERVIEWDESIGN & PROTOTYPETESTING CONCLUSION THANK YOU
Braking Test Method
PROJECT OVERVIEWDESIGN & PROTOTYPETESTING CONCLUSION THANK YOU
Turning Test Method
PROJECT OVERVIEWDESIGN & PROTOTYPETESTING CONCLUSION THANK YOU
Testing on Water
Buoyancy Stability Speed Transition
PROJECT OVERVIEWDESIGN & PROTOTYPETESTING CONCLUSION THANK YOU
Buoyancy Test Method
w/ Rider w/out Rider
PROJECT OVERVIEWDESIGN & PROTOTYPETESTING CONCLUSION THANK YOU
Buoyancy Data
Draft (Flotation Under Water)
No Rider 1.4in.w/ 1 Rider (150 lbs) 3in.w/ 2 Riders (325 lbs) 4.5in.
PROJECT OVERVIEWDESIGN & PROTOTYPETESTING CONCLUSION THANK YOU
Stability Test Method
PROJECT OVERVIEWDESIGN & PROTOTYPETESTING CONCLUSION THANK YOU
Stability DataAngle Measurements
Side-to-Side
1 Rider10 degrees
2 Riders18 degrees
Front-to-Back1 Rider-Back 5 degrees1 Rider-Front 8 degrees
PROJECT OVERVIEWDESIGN & PROTOTYPETESTING CONCLUSION THANK YOU
Speed Test Method
PROJECT OVERVIEWDESIGN & PROTOTYPETESTING CONCLUSION THANK YOU
Trial # Speed (mph)Trial 1 2.06 mphTrial 2 2.06 mphTrial 3 2.26 mph
Average Speed 2.13 mph
Top Speed 2.26 mph
Speed Data
PROJECT OVERVIEWDESIGN & PROTOTYPETESTING CONCLUSION THANK YOU
Transition: Land to Water
PROJECT OVERVIEWDESIGN & PROTOTYPETESTING CONCLUSION THANK YOU
Transition: Water to Land
PROJECT OVERVIEWDESIGN & PROTOTYPETESTING CONCLUSION THANK YOU
CONCLUSIONVehicle moves effectively on land and water
Steering on land and water exceeded expectations
Vehicle is stable on land and water
Secondary Goals
PROJECT OVERVIEWDESIGN & PROTOTYPETESTING CONCLUSION THANK YOU
ACKNOWLEDGEMENTS
Professor Nielsen – Team AdvisorProfessor ErmerPhil Jasperse – Metal ShopRen Tubergen – Industrial ConsultantCEAC Review Board
PROJECT OVERVIEWDESIGN & PROTOTYPETESTING CONCLUSIONTHANK YOU
THANK YOU
PROJECT OVERVIEWDESIGN & PROTOTYPETESTING CONCLUSIONTHANK YOU
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