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Transcript of Structural Optimization Automotive Chassis heavy vehicle

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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

   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 in the )\$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\$ad c\$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)!e s\$!#ti\$ns #nti! n\$ )etter s\$!#ti\$n

can )e %\$#nd

Types sin-!e \$)6ecti'e \$&timi4ati\$n m#!ti \$)6ecti'e \$&timi4ati\$n

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Structural optimization

 T\$&\$!\$-" O&timi4ati\$n Si4e O&timi4ati\$n  T\$&\$metr" O&timi4ati\$n  T\$&\$-ra&h" O&timi4ati\$n Sha&e O&timi4ati\$n

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Variables in Structural Optimization

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Optimization Process

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Complete Optimization Process

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APPICATIONS

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Automoti!e "oo#

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

(c) ot"mum la%out

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Rear \$enc%

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

!ar"a\$le u\$d"!""on deformed ae

(c) Dam"ng mater"al ot"mum T"c*ne d"tr"\$ut"on

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Automoti!e C%assis

(a) doma"n, or de"gn ace (\$) ot"mum ca" conf"gurat"on

(c) ot"mum roof conf"gurat"on

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oa# Steps

Si0 di7erent !\$ad ste&s are c\$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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CONCUSION

Usin- str#ct#ra! \$&timi4ati\$n/ the sti7ness \$% a car )\$d" can )e -reat!" increased ith\$#t addin- 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 Beteen 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 Inner Pane!

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