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Modeling & Simulation Modeling & Simulation of Buggyof Buggy

using using MatlabMatlab

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We are from …

Haw Haw KeatKeat LilinLilin Yi Yi HuiHui

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What is Buggy?What is Buggy?

SingleSingle--seaterseater vehiclesvehicles

Recreational purposesRecreational purposes

Go KartGo KartCopyright TJ Power Sports, LLC 2003

Golf buggiesGolf buggies

picture taken from www.buggymart.com

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Develop buggy model for testing purposes

Investigate and characterize the behavior of buggyComfort level - Suspension system

ObjectivesObjectives

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picture taken from http://www.f440.com/

picture taken from http://www.bondurantsuperkarts.compicture taken from http://www.smsonline.com/company/simulators.html

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One-seater commercial vehicle “Twin”

Jeep Wrangler

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Matlab/Matlab/SimMechanicsSimMechanics => Buggy model => Buggy model

MatlabMatlab//Virtual Reality Toolbox => AnimationVirtual Reality Toolbox => Animation

Solid Edge =>Solid Edge => CAD drawings

Design and dimensions of buggy obtained from Design and dimensions of buggy obtained from ……

Project ScopeProject Scope

CanadaCanada

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Badland BuggyBadland Buggy

pictures taken Badland Buggy website

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Next Next ……

Modeling of the buggy using Modeling of the buggy using MatlabMatlabSimMechanicsSimMechanics and Solid Edgeand Solid Edge

Suspension system Suspension system DriveshaftDriveshaftWheelsWheelsSteeringSteering

Animation using VR toolboxAnimation using VR toolbox

Solution and ConclusionSolution and Conclusion

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OverviewOverview

MatlabSimMechanics

VRML

Solid Edge MatlabSimulink

scopeMatlab

VR toolboxMatlab

VR toolbox

Inertia, etc.

3D model

Model Analysis

ResultsSimulation

MatlabSimMechanics

MatlabSimulink

Solid Edge

VRML

scope

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SimMechanicsSimMechanics

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SimMechanicsSimMechanics

Prismatic jointPrismatic joint

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SimMechanicsSimMechanics

Revolute jointRevolute joint

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SimMechanicsSimMechanics

Spherical jointSpherical joint

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BuggyBuggy

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BuggyBuggy

Rear suspension

Front suspension

Rear wheelsFront wheels

Chassis

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SimMechanicsSimMechanics Model of BuggyModel of Buggy

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ChassisChassis

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Rear SuspensionRear Suspension

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Rear SuspensionRear Suspension

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DriveshaftDriveshaft

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DriveshaftDriveshaft

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Front & Rear WheelsFront & Rear Wheels

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Front & Rear WheelsFront & Rear Wheels

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SteeringSteering

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Simulation Simulation

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Animation

Solid Edge

VRealm Builder

VR toolbox

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Animation

Solid Edge

VRealm Builder

VR toolbox

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Animation

Solid Edge

VRealm Builder

VR toolbox

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Virtual Reality ToolboxVirtual Reality Toolbox

Solid Edge

VRealm Builder

VR toolbox

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Animation in VRAnimation in VR

Straight path

Non-linear path

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SolutionSolutionTo measure the comfort level of the buggy

Shows displacement in various directions

Determine the appropriate spring and damper coefficients of the suspension system

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ConclusionConclusion

Virtual prototype of buggy from 2D plans createdVirtual prototype of buggy from 2D plans created

Evaluate performance of buggy Evaluate performance of buggy

Further developments Further developments

We don’t just want to build buggies…we want to build dreams!

-- Badland BuggyBadland Buggy

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ReferencesReferencesBadland Buggy 2D Off-Road Vehicle Plans & Quality Parts, ST2. (2003) Calgary, Alberta, Canada.

Barr, A. J., & Ray, J. L. (1996). Control of an active suspension using fuzzy logic. International Conference on Fuzzy Systems, v 1, p 42-48.

Gani, M. R (1999, March). The Computer Assisted Modelling, Simulation and Analysis of Two-wheeled Road Vehicles. British Thesis Service, LS23 7BQ. West Yorkshire, United Kingdom,

Marvris, D., & Scharl, J., (2001). Building Parametric and Probabilistic Dynamic Vehicle Models Using Neural Networks. American Institute of Aeronautics and Astronautics (AIAA). Retrieved March 19, 2005, from http://www.asdl.gatech.edu/publications/pdf/2001/AIAA-2001-4373.pdf

Meng, A., Wang, L., Cong, H., & Yu, K. (2003). A Study on Simulation and Control Scheme of Limited Bandwidth Active Vehicle. Proceedings of the International Symposium on Test and Measurement, v 3(2003), p 2219-2222.

Pletner, B., & Abramovich, H. (1995). Adaptive suspension of vehicles using piezoelectric sensors. Journal of Intelligent Material Systems and Structures, v 6(n 6), p 744-756.

The 37th Tokyo Motor Show (2003). Small Cars, Big Future. Japan Automobile Manufactures Association. Retrieved May 2, 2005, from http://www.tokyo-motorshow.com/show/2004/english/public/playback/playback4.html

TheFreeDictionary.com website (2005). Farlex, Inc. Retrieved May 2, 2005, from http://www.thefreedictionary.com/%20automobile

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Proudly presented by:

Koh LilinLim Haw KeatLow Yi Hui

Special thanks to

A/P Yap Fook FahSchool of Mechanical and Aerospace EngineeringNanyang Technological University