Race Car Steering Race Car Steering Redesign Redesign Group 6: Group 6: Joseph Haydu Joseph Haydu Brian Quinn Brian Quinn Noelle Bomberger Noelle Bomberger Assisted by Assisted by Jim Waterman Jim Waterman Advisor: Advisor: Jan Nazalewicz, P. E. Jan Nazalewicz, P. E.
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Race Car Steering Redesign Group 6: Joseph Haydu Joseph Haydu Brian Quinn Brian Quinn Noelle Bomberger Noelle Bomberger Assisted by Assisted by Jim Waterman.
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Race Car Steering Race Car Steering RedesignRedesign
Group 6:Group 6: Joseph HayduJoseph Haydu Brian QuinnBrian Quinn Noelle BombergerNoelle Bomberger Assisted byAssisted by
Jim WatermanJim Waterman
Advisor:Advisor: Jan Nazalewicz, P. E. Jan Nazalewicz, P. E.
OverviewOverview
ObjectivesObjectives Optimized designOptimized design Give future group head start in Give future group head start in
competitioncompetition DeliverablesDeliverables
Reports and Presentations for ME 424Reports and Presentations for ME 424 Final design and AnalysisFinal design and Analysis Fabricated steering systemFabricated steering system
Previous SystemPrevious System
Analysis of Previous Analysis of Previous SystemSystem
Geometry did not comply to Geometry did not comply to Ackermann EquationsAckermann Equations
System became mis-aligned System became mis-aligned regularlyregularly
Total car weight (W) = 815 lbfTotal car weight (W) = 815 lbf Height of car Center of Gravity from road (h) = Height of car Center of Gravity from road (h) =
1.5 ft1.5 ft Distance between wheels on axles (wb) = 3.92 ftDistance between wheels on axles (wb) = 3.92 ft Coefficient of friction for wheels is 1Coefficient of friction for wheels is 1 Information from Ackerman EquationsInformation from Ackerman Equations Assumed weight distribution even between front Assumed weight distribution even between front
and rear axlesand rear axles Outputs ConditionsOutputs Conditions
Car tippingCar tipping Sliding sidewaysSliding sideways
New Design AnalysisNew Design Analysis
Ackermann AnalysisAckermann Analysis
Old Design AnalysisOld Design Analysis
Linkage SpecificationsLinkage Specifications
Rack and pinion in front of axleRack and pinion in front of axle Ackermann SteeringAckermann Steering Minimize fabrication for maximum benefitMinimize fabrication for maximum benefit Analyzed model through SolidWorks to Analyzed model through SolidWorks to
minimize error from Ackermann minimize error from Ackermann EquationsEquations
Final Decision: Construct and test new Final Decision: Construct and test new linkageslinkages
Linkage RedesignLinkage Redesign
Linkage RedesignLinkage Redesign
Model of New Steering Model of New Steering SystemSystem
Quick Release GoalsQuick Release Goals
Minimize time for driver to exit vehicleMinimize time for driver to exit vehicle Difficult to false triggerDifficult to false trigger Ease of useEase of use ErgonomicsErgonomics
Final decision: not sufficient Final decision: not sufficient improvement over existing design to improvement over existing design to warrant constructionwarrant construction
Quick Release DesignsQuick Release Designs
Still to comeStill to come
Final ReportFinal Report TestingTesting Cushion stoppages to prevent Cushion stoppages to prevent
damage and mis-alignment due to damage and mis-alignment due to mechanical shockmechanical shock