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 Goals: 1.Design Concepts 2.Decision Matrix 3.Best concept selection 4.CAD 5.Prints 6.Stress Members: Katey, Mike, Brandon, Maaninee, Austin, Constantino, and Alex Integration Team Goals: 1.Fix Brakes 2.Integrate Steering 3.Integrate New Seat 4.Test entire car with Over Ride Mechanism 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 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

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 NeededItemEstimated Cost 1Steering Wheel$60 36 ft. long chains$ ft Long 1/2" Staineless Steel Tubing$ ft. Long 3/8" Stainless Steel Tubing$ ft Long 1/4" Stainless Steel Tubing$ "x 48" Stainless Steel Sheet$40.00 Total $1,200 ItemUse Steering WheelTo Steer the car 6 ft. long chainsUsed to turn the axel and wheel 6 ft Long 1/2" Staineless Steel TubingSteering Column and override clutch 6 ft. Long 3/8" Stainless Steel TubingSteering Column and override clutch 6 ft Long 1/4" Stainless Steel TubingSteering Column and override clutch 24"x 48" Stainless Steel SheetBuild flanges for override cluth

Thank you