Golf buggies - Nanyang Technological University

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Golf buggies - Nanyang Technological University

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Modeling & Simulation

of Buggy

using Matlab

© 2003 By Default!


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We are from …

Haw Keat Lilin Yi Hui

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What is Buggy?

�� Single-seater

Single seater vehicles

�� Recreational purposes

Copyright TJ Power Sports, LLC 2003

Go Kart

Golf buggies

picture taken from www.buggymart.com

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Objectives

� Develop buggy model for testing purposes

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� Investigate and characterize the behavior of buggy

� Comfort level - Suspension system


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

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

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


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One-seater commercial vehicle “Twin”

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Jeep Wrangler

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Project Scope

�� Matlab/SimMechanics

Matlab/ SimMechanics => Buggy model

�� Matlab/Virtual Matlab Virtual Reality Toolbox => Animation

�� Solid Edge => CAD drawings

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�� Design and dimensions of buggy obtained from …

Canada


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Badland Buggy

pictures taken Badland Buggy website

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Next …

�� Modeling of the buggy using Matlab

SimMechanics and Solid Edge

��Suspension Suspension system

��Driveshaft Driveshaft

��Wheels Wheels

��Steering Steering

�� Animation using VR toolbox

�� Solution and Conclusion

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Solid Edge

3D model

Inertia, etc.

VRML

Simulation

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Overview

Matlab

SimMechanics

Matlab

VR toolbox

Model Analysis

Matlab

Simulink

scope

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Results


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SimMechanics

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SimMechanics

Prismatic joint

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SimMechanics

Revolute joint

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SimMechanics

Spherical joint

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Buggy

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Rear

suspension

Rear wheels

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Buggy

Front

suspension

Chassis

Front wheels

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SimMechanics Model of Buggy


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Chassis

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Rear Suspension

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Rear Suspension

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Driveshaft

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Driveshaft

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Front & Rear Wheels

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Front & Rear Wheels

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Steering

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Simulation

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Solid Edge

VRealm Builder

VR toolbox

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Animation

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Solid Edge

VRealm Builder

VR toolbox

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Animation

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Solid Edge

VRealm Builder

VR toolbox

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Animation

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Virtual Reality Toolbox

Solid Edge

VRealm Builder

VR toolbox

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Animation in VR

Straight path

Non-linear path

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Solution

� To 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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Conclusion

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�� Virtual prototype of buggy from 2D plans created

�� Evaluate performance of buggy

�� Further developments

We don’t just want to build buggies

we want to build dreams!

- Badland Buggy


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References

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

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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 Lilin

Lim Haw Keat

Low Yi Hui

Special thanks to

A/P Yap Fook Fah

School of Mechanical and Aerospace

Engineering

Nanyang Technological University

© 2003 By Default!

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