Application examples and potential for explicit finite elements in the analysis of friction brakes
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1 5h Eropea HTC i Bo Applicaio exaples ad poeial or explici iie elees i he aalysis o ricio brakes Jiasheg WANG Techical Aalysis & Silaios Korr-Brese Ss Geray Korr-Brese Grop Seie WANG R/LTA 5. Nov. 0
2 5h Eropea HTC i Bo Olie Irodcio o he copay Why se explici iie elees o silae a brake? Theory backgrod Pracical cosideraios Applicaio exaples re perspecive ad poeial applicaios Korr-Brese Grop Seie WANG R/LTA 5. Nov. 0
3 5h Eropea HTC i Bo Copay Irodcio oded: i 905 Experiece: 00 years o iovaio Nearly 7000 eployees Trover approxiaely EUR 3.7 billio R & D 4.9% o revee Iveses o EUR 40 illio Locaios Over 60 locaios i 5 cories Corporae divisios: rail ad coercial vehicles Marke ad echology leader wih wo pillars: - Brakig syses or rail vehicles + O-Board Syses - Brakig syses or coercial vehicles + orsioal vibraio dapers Korr-Brese Grop Seie 3 WANG R/LTA 5. Nov. 0
4 5h Eropea HTC i Bo Why se explici iie elees o silae a brake? Explici iie elees are ypically sed or odellig highly dyaic eves sch as crash or ipac probles. Korr-Brese Grop Seie 4 WANG R/LTA 5. Nov. 0
5 5h Eropea HTC i Bo Why se explici iie elees o silae a brake? Drig a oral service brakig process or a eergecy brakig process he brake pressre has o be icreased i very shor ie draio which eas he explici aalysis is i priciple well sied or sch a kid o silaio. Trck disc brake slows dow or sops he roaio o he rck wheels de o ricio ro he brake pads. Korr-Brese Grop Seie 5 WANG R/LTA 5. Nov. 0
6 5h Eropea HTC i Bo Why se explici iie elees o silae a brake? Secodly der acal drivig codiio he brake assebly is oe sbjeced o vibraio loads which coe ro he wheels ad axle. Ths i he prodc develope phase a eqivale vibraio es wih cerai reqecies has o be doe. Body Syse Reakio o highway Axle Red: easred resl Ble: silaed resl Verical shake es or a whole rck brake assebly Korr-Brese Grop Seie 6 WANG R/LTA 5. Nov. 0
7 5h Eropea HTC i Bo Why se explici iie elees o silae a brake? rher a explici dyaic aalysis ay also be sed o odel soe highly oliear pheoea. Nolieariies ay se o oly ro he aerials or exaple rbber pars b also ro he coac or exaple big relaive displacee ad ro he geoeric or exaple highly deoraio. Maerial Coac Geoeric Korr-Brese Grop Seie 7 WANG R/LTA 5. Nov. 0
8 5h Eropea HTC i Bo Theoreical backgrod sipliied The eqaio o oio Iplici saic calclaio Explici calclaio wiho dapig Korr-Brese Grop Seie 8 WANG R/LTA 5. Nov. 0
9 5h Eropea HTC i Bo Korr-Brese Grop WANG R/LTA 5. Nov. 0 Seie 9 Theoreical backgrod i deail i M ex i ex M 3 Rhs K c C c M c 4 0 q A Aq q ~ ~ i ex M ~ ~ ~ ~ Rhs M c ~ ~ ~ ~ Coclsio: Ier orce says o he le side [M+C+K]x=b s be solved Ier orce is oved o he righ side Mx=b s be solved Iplici ie iegraio Explici ie iegraio Tie Discreisaio Predicor Correcor Newo-Raphso C i i K i i i i i i i i i i
10 5h Eropea HTC i Bo Pracical cosideraios Iplici Explici - o diagoal + Diagoal arix - Low robsess Divergece - High eory - Relaively high cos high CPU high eory + High robsess High oliear aerials iesive coac large displacee + Low eory High ad copled olieariy + Relaively low cos Low CPU low eory + Always sable - Codiioal sabiliy + Mi. elee size liied - Mi. elee size liied Mass scalig reqired + deal wih oliear elees - Lockig eec by sig liear erahedros hexahedros o easy + sress resl very precise - sress resl o so accrae + large ie sep - sall ie sep [Reerece: Alair Egieerig Ic. Radioss Theory Maal ] Korr-Brese Grop Seie 0 WANG R/LTA 5. Nov. 0
11 5h Eropea HTC i Bo Applicaio exaple Exp. : Shake Tes o a whole rck brake assebly Brake bracke was broke Korr-Brese Grop Seie WANG R/LTA 5. Nov. 0
12 5h Eropea HTC i Bo Applicaio exaple Exp. : Silaio o a edrace es o a ebrae Korr-Brese Grop Seie WANG R/LTA 5. Nov. 0
13 5h Eropea HTC i Bo Exp. 3: Brake pressre disribio Applicaio exaple 3 =0s =70s =0s Korr-Brese Grop Seie 3 WANG R/LTA 5. Nov. 0
14 5h Eropea HTC i Bo re perspecive ad poeial applicaios The size o he odel ie sep has o be chose sall eogh o accoodae he elee ie sep o he salles elee. Hece he salles ie sep deeries he perorace o he whole odel. A rher echology which is called "li-doai" wold be able o sbdivide doais based o ie sep esh size. Each doai ses is ow ie sep. The CPU ie cold be decreased sigiicaly ad he copaio accracy ay be icreased by reiig he esh locally. Explici CD ad lid-srcre ieracio ay also be applied or silaio o brake valves. ALE SPH ec. lid low hrogh a Rbber Valve [Reerece: HW-Torial RD3590] Korr-Brese Grop Seie 4 WANG R/LTA 5. Nov. 0
15 5h Eropea HTC i Bo Thak yo or yor liseig! Jiasheg WANG Korr Brese SS Techical Aalysis/Silaios R/LTA Moosacher Sraße 80 D Müche Phoe Eax ailo: jiasheg.wag@korr-brese.co hp:// Korr-Brese Grop Seie 5 WANG R/LTA 5. Nov. 0
16 5h Eropea HTC i Bo Applicaio exaple Coac orce bewee he bracke ad he la sprig explici EM aalysis Korr-Brese Grop Seie 6 WANG R/LTA 5. Nov. 0
17 5h Eropea HTC i Bo Applicaio exaple 3 Coac pressre bewee he brake pad ad he brake disk Korr-Brese Grop Seie 7 WANG R/LTA 5. Nov. 0
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