SOAP TEAM
Instructor: Andrzej Wylenzinski
Aditya Shanghavi
Jackie Kowalski, Adam Merkel, Constantino Fiuza, Luke Wildhaber,
Paul Hanna, Austin Linne, Michael Jessup, Katey Powell, Brenton
Yeager, Alex Jobbe, Maaninee Gupta, Brandon Wang
Design Review
Thursday
October 9, 2014
Project Description
• To successfully design and manufacture an over-ride mechanism for the steering
system on our SOAP Box Car.
• The over-ride mechanism will allow more thrill to the child and more safety to the
experience if the professional driver needs to take over steering.
• If successful, we will have time to continue to modify other parts of the car and
get a jump-start on future assignments that will allow the car to be almost fully
complete for the race.
Current Car
Overview
Over Ride Mechanism
Development Team
Integration Team
Goals:
Goals:
1. Design Concepts
2. Decision Matrix
3. Best concept selection
4. CAD
1.
2.
3.
4.
Fix Brakes
Integrate Steering
Integrate New Seat
Test entire car with Over Ride
Mechanism
5. Prints
6. Stress
Members:
Katey, Mike, Brandon, Maaninee, Austin,
Constantino, and Alex
Members:
Jackie, Adam, Brenton, Paul, and Luke
Super Kids Race
September 13, 2014
Indianapolis, IN
Over Ride Mechanism
Development Team
Over Ride Mechanism Goals
• Design an Over Ride Mechanism that allows the rear or safety
driver to take control of the steering of the car
• Give the child the impression that he or she is in control of the car
(note: whether he or she actually has control of the car or not)
• Be able to Prototype and test over ride mechanism
Semester Project Plan
Steering Override Mechanism Development Team: Semester Team
Overview
Task(s)
Week 7
Week 8
Design Review
Design
Calculations
Brainstorm
Design an Experiment
Construction
Protoype
Force of Springs,
Rotational Force of
Steering Shaft
Idea of how to attach plate
to pedal
Want to determine the
force applied to steering
wheel by person driving
Purchase Materials
Build Protoype
Pass on to Integration Team They attach to car and test
Final Design Review
Week 9
Week 10 Week 11 Week 12 Week 13 Week 14 Week 15
Steering Override Analysis Breakdown
Adjustability
• Ease of Access
• Detachable Steering wheel
• Easy for child to get in and out of car
• Adjustable height of steering wheel
• To conform to the size and needs of the child
Mechanism
• Disengaging the Drive
• Being able to keep the child from having control of the car
• Mechanical Advantage
• Larger gear for steering in the front- child has less control
• Smaller gear in the rear- giving safety driver more control
Low Cost
• Material Used
• Needs to be economical- keep costs low
• Light weight
• Assembly
• Will it require extra knowledge? (welding, etc.)
• Will outside help be needed?
Design
• Strength and Durability
• Shaft should not break
• Maintain integrity after repeated use
• Maintenance
• Require minimal factory upkeep as possible
• Assembly
• Straight forward- simple user manual for parents to build
Basic Design
Decision Matrix
Design
Factors
Reliability (3)
Ease of Integration(2)
Usability (2)
Construction (3)
Effectiveness (4)
Result
Current Design (Slip Clutch) Friction Plate Clutch (Concept) Bicycle Gear (Concept)
-2
2
0
-1
-2
-13
1
0
2
1
2
18
1
1
2
-1
0
6
Progress, Issues, and Goals
• Progress:
• Determined needs and created a design for a clutch over ride mechanism
• Issues:
• Past Design is ineffective (slip clutch)
• The chains (need to be tightened)
• steering needs to be locked (decrease turn radius)
• Goals:
• Prototype of override mechanism and integrate it into the car
Integration Team
Body Goals
1. Fix Brakes
2. Integrate Steering
3. Integrate New Seat
4. Test entire car with Over Ride Mechanism
Semester Project Plan
Body Analysis Breakdown
Progress, Issues, and Goals
• Progress:
• Discovered brake components
• Brainstormed redesign ideas
• Semester Plan complete
• Issues:
• Car is unsafe in current condition
• No roll cage or safe seating
• Goals:
• Completely integrate new brakes
• Integrate new seating
• possibly new doors/latches into the car
Budget- Service Learning Grant
Amount Needed
Item
Item
Use
Steering Wheel
To Steer the car
6 ft. long chains
Used to turn the axel and wheel
6 ft Long 1/2" Staineless Steel Tubing
Steering Column and override clutch
6 ft. Long 3/8" Stainless Steel Tubing
Steering Column and override clutch
$40.00
6 ft Long 1/4" Stainless Steel Tubing
Steering Column and override clutch
$1,200
24"x 48" Stainless Steel Sheet
Build flanges for override cluth
Estimated Cost
1 Steering Wheel
$60
3 6 ft. long chains
$200
3 6 ft Long 1/2" Staineless Steel Tubing
$300
3 6 ft. Long 3/8" Stainless Steel Tubing
$300
2 6 ft Long 1/4" Stainless Steel Tubing
$300
1 24"x 48" Stainless Steel Sheet
Total
Thank you