7/23/2019 Fea Analysis of a Caliper Bracket for Disk Brake

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FEA ANALYSIS OF A CALIPER BRACKET FOR DISC

BRAKE

ABSTRACT

As braking forces are applie a! !"e #"eel of an a$!o%obile& !"ose forces %$s! be !rans%i!!e !o

!"e s$spension of !"e 'e"icle( A caliper ab$!%en! bracke! %$s! !ake !"e fric!ional forces

genera!e b) !"e brake s)s!e% an no! )iel or o'erl) eflec!( *sing ANSYS a fini!e ele%en!

anal)sis #as perfor%e on a caliper ab$!%en! bracke!( T"is anal)sis fo$n !"e %a+ s!ress of,-ksi an i!s loca!ion( T"e %a+i%$% eflec!ion a! !"e poin! of o$!er pa loaing #as fo$n !o be

.(.,//0in( in !"e irec!ion of !"e loa an #as co%pare !o "an calc$la!ions one $sing

Cas!igliano1s %e!"o !o fin eflec!ion a! !"e sa%e poin!(

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INTRODUCTION

2oern isc brake s)s!e%s are co%pose of se'eral co%ponen!s( T"e forces !"a! ac!$all) s!op

!"e 'e"icle !ake place a! !"e #"eel( 3ere& ")ra$lic press$re p$s"es o$! a pis!on on !"e brakecaliper( T"is ac!ion ca$ses !"e o$!er por!ion of !"e caliper an !"e pis!on !o 4s5$ee6e7 !"e ro!or

be!#een !#o brake pas( All !"e fric!ional force is con'e)e a! !"is pa in!erface( A caliper

ab$!%en! bracke! 8see Fig$re9 "ols !"e pas 8in !"e raial an !angen!ial irec!ions9 as #ell as

a!!ac"es !"e caliper !o !"e spinle( T"$s& !"e ab$!%en! bracke! %$s! #i!"s!an all !"e braking

forces a! !"e #"eel& as #ell as !"e !"er%al loas genera!e $ner "ea') braking

(

Pic!$re s"o#ing "o# !"e bracke! posi!ions !"e caliper on !"e spinle(

7/23/2019 Fea Analysis of a Caliper Bracket for Disk Brake

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DESIRED OUTCOMES

To anal)6e !"e %ec"anical an !"er%al s!resses !"e bracke! en$res $ner f$ll braking fro%

:.%p" an !o also obser'e !"e loca!ion of an) s!ress concen!ra!ions( T"is #ill be one $!ili6ing

a!a fro% a ;..< C"e'role! Ca%aro( Also of in!eres!& is !"e efec!ion a! !"e loca!ion #"ere !"e

o$!er brake pa con!ac!s !"e bracke!(

PROPOSED ANALYSIS

7/23/2019 Fea Analysis of a Caliper Bracket for Disk Brake

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MODEL DEVELOPMENT

Originall)& a ?>D soli %oel #as going !o be $se for !"e anal)sis( 2an) %eas$re%en!s of !"e

bracke! #ere !aken an $se !o ra# a ?>D %oel in CATIA( T"e %oel #as !"en i%por!e in!o

ANSYS #"ere %es"ing beca%e 'er) iffic$l!( 2an) par!i!ions #o$l be neee $e !o !"e

co%ple+ geo%e!r)( 2$l!iple a!!e%p!s #ere %ae a! $sing !"e 4Bo!!o%>*p7 %es" fea!$re in

ANSYS b$! onl) crea!e ba 5$ali!) %es"es

ANALYSIS

T"e final anal)sis #as one $sing ?>D bea% ele%en!s an obser'ing !"e s!resses !"ro$g"o$! !"e

bracke! b$! %os! i%por!an!l)& %eas$ring !"e eflec!ion of !"e bracke! a! !"e poin! #"ere !"e force

of !"e o$!er brake pas is applie !o !"e bracke!(

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