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“STRUCTURAL OPTIMIZATION OF

AUTOMOTIVE CHASSIS”

STUDENT NAME : Anurag Patel

GUIDE :

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INDEX

  INTRODUCTION   OPTIMIZATION

  STRUCTURAL OPTIMIZATION

  VARIABLES IN STRUCTURAL OPTIMIZATION   VARIABLES IN STRUCTURAL OPTIMIZATION

  APPLICATIONS

  LOAD STEPS

  CONCLUSION   REFERENCE

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Chassis is a French term and as initia!!" #sed t$den$te the %rame &arts $r Basic Str#ct#re $% the'ehic!e( It is the )ac* )$ne $% the 'ehic!e(

FUNCTIONS OF THE CHASSIS FRAME+

,(T$ carr" !$ad $% the &assen-ers $r -$$ds carried inthe )$d"(

.(T$ s#&&$rt the !$ad $% the )$d"/ en-ine/ -ear )$0 etc(/

1(T$ ithstand the %$rces ca#sed d#e t$ the s#dden

)ra*in- $r acce!erati$n2(T$ ithstand the stresses ca#sed d#e t$ the )ad r$adc$nditi$n(

3(T$ ithstand centri%#-a! %$rce hi!e c$rnerin-

INTRODUCTION

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Optimization

O&timi4ati$n is a &r$ced#re $%5ndin- and c$m&arin- %easi)!es$!#ti$ns #nti! n$ )etter s$!#ti$n

can )e %$#nd

  Typessin-!e $)6ecti'e $&timi4ati$nm#!ti $)6ecti'e $&timi4ati$n

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Structural optimization

 T$&$!$-" O&timi4ati$nSi4e O&timi4ati$n T$&$metr" O&timi4ati$n T$&$-ra&h" O&timi4ati$nSha&e O&timi4ati$n

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Variables in StructuralOptimization

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Optimization Process

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Complete OptimizationProcess

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  APPICATIONS

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Automoti!e "oo#

 

(a) reference model, to !"e# ($) reference model, $ottom !"e#

(c) ot"mum la%out

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Rear $enc%

(a) S"&e ot"m"&at"on ($) 't"mum conf"gurat"on

!ar"a$le u$d"!""on deformed ae

(c) Dam"ng mater"al ot"mum T"c*ne d"tr"$ut"on

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Automoti!e C%assis

(a) doma"n, or de"gn ace ($) ot"mum ca" conf"gurat"on

(c) ot"mum roof conf"gurat"on

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oa# Steps

Si0 di7erent !$ad ste&s arec$mm$n!" #sed in FE ana!"sis + )endin- -!$)a! sti7ness

t$rsi$na! -!$)a! sti7ness 8a&s )endin- sti7ness

hin-es attachment sti7ness

!atch attachment sti7ness

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CONCUSION

  Usin- str#ct#ra! $&timi4ati$n/ the sti7ness $%a car )$d" can )e -reat!" increased ith$#taddin- t$$ m#ch mass( The meth$ds&resented a!!$ the desi-ner t$ e0&!$re a

!ar-er desi-n s&ace and im&r$'e the #sa-e$% materia! and9$r minimi4e mass(

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RE&ERRENCES

 :,; Str#ct#ra! O&timi4ati$n Meth$ds and Techni#an Pa)!$ Lei'a Vander &!aats Research and De'e!$&ment/ Inc(

 :.; A#t$m$ti'e Chassis T$&$!$-" O&timi4ati$n+ a C$m&aris$n Beteen S&ider

and

C$#&@e Desi-ns Marc$ Ca'a44#ti/ Dari$ C$sti/ Andrea Ba!dini/ Patri4i$M$r#44i

:1;O&timi4ati$n Meth$d$!$-" %$r an A#t$m$ti'e H$$d S#)str#ct#re InnerPane!

  D( C$sti/ E( T$rrice!!i/ L( S&!endi and M( Petta44$ni

:2; htt&s+99(-$$-!e(c$(in9

:3; >(M( Biradar/ B(V( Vi6a"/ ai!ash >at( A#t$m$ti'e Chassis Si4in-O&timi4ati$n %$r M$da!

and Dist$rti$n Criteria( Sastech/ V$!#me / Iss#e ./ Se&tem)er .GG(

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  THAN OU