{"id":482,"date":"2022-11-14T22:52:52","date_gmt":"2022-11-14T19:52:52","guid":{"rendered":"https:\/\/legendhomework.com\/tr\/?p=482"},"modified":"2022-11-14T22:52:53","modified_gmt":"2022-11-14T19:52:53","slug":"arac-muhendisligi-arac-muhendisligi-bolumu-arac-muhendisligi-bolumu-odevleri-arac-muhendisligi-odevleri-yaptirma-arac-muhendisligi-bolumu-tez-yaptirma","status":"publish","type":"post","link":"https:\/\/legendhomework.com\/tr\/arac-muhendisligi-arac-muhendisligi-bolumu-arac-muhendisligi-bolumu-odevleri-arac-muhendisligi-odevleri-yaptirma-arac-muhendisligi-bolumu-tez-yaptirma\/","title":{"rendered":"\u00a0Ara\u00e7 M\u00fchendisli\u011fi \u2013 Ara\u00e7 M\u00fchendisli\u011fi B\u00f6l\u00fcm\u00fc \u2013 Ara\u00e7 M\u00fchendisli\u011fi B\u00f6l\u00fcm\u00fc \u00d6devleri \u2013 Ara\u00e7 M\u00fchendisli\u011fi \u00d6devleri Yapt\u0131rma \u2013 Ara\u00e7 M\u00fchendisli\u011fi B\u00f6l\u00fcm\u00fc Tez Yapt\u0131rma\u2013 Ara\u00e7 M\u00fchendisli\u011fi B\u00f6l\u00fcm\u00fc \u00d6dev \u00dccretleri"},"content":{"rendered":"

Ara\u00e7 M\u00fchendisli\u011fi<\/span><\/strong><\/h3>\n

\u00c7elik end\u00fcstrisinin hafif ala\u015f\u0131mlara kar\u015f\u0131 yap\u0131sal \u00fcst\u00fcnl\u00fc\u011f\u00fcn\u00fc yeniden ifade etmede yapt\u0131\u011f\u0131 \u00f6nemli geri d\u00f6n\u00fc\u015f ve geli\u015fen al\u00fcminyum ve polimer kompozitlerin s\u00fcrekli hareket eden kale direkleri bu yaz\u0131m\u0131z\u0131 a\u00e7maktad\u0131r.<\/span><\/p>\n

Hibrit metal\/plastik yap\u0131lar\u0131n yeniden ortaya \u00e7\u0131k\u0131\u015f\u0131n\u0131n yan\u0131 s\u0131ra geri d\u00f6n\u00fc\u015ft\u00fcr\u00fclm\u00fc\u015f polimer matrislerle g\u00fc\u00e7lendirilmi\u015f plastiklerin olu\u015fturulmas\u0131 da tart\u0131\u015f\u0131l\u0131yor. Daha sonra performans endekslerinin olu\u015fturulmas\u0131na yol a\u00e7an malzeme \u00f6zellik \u00e7izelgelerine ge\u00e7i\u015f incelenir ve b\u00f6l\u00fcm, g\u00f6vde yap\u0131m\u0131nda geleneksel kaynakl\u0131 ba\u011flant\u0131lara uygun bir alternatif olarak kendi delen per\u00e7inlemeyi yapma \u00e7abalar\u0131yla sona erer.<\/span><\/p>\n

\u00c7elik dayan\u0131kl\u0131l\u0131\u011f\u0131 ve yap\u0131sal verimlilik<\/span><\/strong><\/p>\n

1 Ara\u015ft\u0131rmac\u0131lara g\u00f6re, <\/span>\u00a0ara\u00e7 g\u00f6vde panellerinin dayan\u0131kl\u0131l\u0131\u011f\u0131na y\u00f6nelik temel beklentiler, 10 y\u0131ll\u0131k korozyonsuz \u00f6m\u00fcr beklentisiyle, tipik olarak yedi y\u0131l veya 100.000 mildir.\u00a0<\/span>
\n2 \u00c7elik m\u00fchendisleri ana etkiyi g\u00f6stermi\u015ftir.<\/span>\u00a0\u00dcr\u00fcn tasar\u0131m\u0131nda geleneksel yakla\u015f\u0131m, nem tutucular\u0131 ortadan kald\u0131rmak, boyan\u0131n daha iyi n\u00fcfuz etmesine izin vermek ve tasar\u0131m\u0131 ta\u015f k\u0131r\u0131lmas\u0131na kar\u015f\u0131 daha diren\u00e7li olacak \u015fekilde geli\u015ftirmek olmu\u015ftur.<\/span><\/p>\n

Ayr\u0131ca, tek taraf\u0131 \u00e7inko kapl\u0131 \u00e7elik paneller kademeli olarak benimsenerek, i\u00e7eride koruma ve d\u0131\u015far\u0131da iyi boyanabilirlik sa\u011flad\u0131.<\/span><\/p>\n

Daha yak\u0131n zamanlarda, Japon imalat\u00e7\u0131lar\u0131n te\u015fvikiyle s\u0131cak dald\u0131rma galvanizden elektro\u00e7inko panellere ge\u00e7i\u015f olmu\u015ftu; bunlar bir dizi s\u00fcneklik, art\u0131r\u0131lm\u0131\u015f kaynaklanabilirlik ve \u00e7e\u015fitli kaplama kal\u0131nl\u0131klar\u0131 ve korozyon direnci seviyeleri sa\u011flamak i\u00e7in kaplamay\u0131 ala\u015f\u0131mlama yetene\u011fi sunar. Art\u0131k \u00e7ift tarafl\u0131 kaplamal\u0131 \u00e7elikler, farkl\u0131 kaplama a\u011f\u0131rl\u0131klar\u0131 ile tercih edilmektedir: tipik kal\u0131nl\u0131klar art\u0131k 45-60 2 g\/m’dir.<\/span><\/p>\n

Gelecekteki kalite iyile\u015ftirmeleri, y\u00fczey i\u015fleme ve \u015fekillendirilebilirlik alan\u0131ndaki geli\u015ftirme \u00e7al\u0131\u015fmalar\u0131 ile vaat edilmektedir. Kal\u0131c\u0131 organik bazl\u0131 son katlar veya fosfat kaplamalar, hem kaynaklanabilirlik hem de korozyon \u00f6nlemede geli\u015fmi\u015f performans sa\u011fl\u0131yor. Di\u011fer bir yeni giri\u015fim, OEM’lerin, \u00fcretim ekonomisi i\u00e7in elektrolizle kaplanm\u0131\u015f \u00fcr\u00fcnleri d\u0131\u015f par\u00e7alar i\u00e7in ‘galvanizli’ \u00fcr\u00fcnlerle de\u011fi\u015ftirme y\u00f6n\u00fcndeki \u00e7abas\u0131d\u0131r. Bunlar iyi boyanabilirlik sa\u011flama yetene\u011fine sahiptir.<\/span><\/p>\n

British Steel Strip Products ve Rover Group aras\u0131ndaki bir ortak giri\u015fimde, Rover 600 i\u00e7in \u00f6n \u00e7amurluk, \u00f6n kap\u0131 kaplamas\u0131, arka kap\u0131 kaplamas\u0131 ve motor kaputu dahil olmak \u00fczere deneme par\u00e7alar\u0131 haz\u0131rland\u0131.<\/span><\/p>\n

1997’de t\u00fcm yeni modeller \u00e7ift tarafl\u0131 galvaniz tavl\u0131 tam mamul panellerle \u00fcretildi. Uzun vadede, yazarlar, galvanik kaplamalarla kullan\u0131m i\u00e7in f\u0131r\u0131nlanmam\u0131\u015f sertle\u015ftirme, daha y\u00fcksek mukavemetli \u00e7elik alt tabakalar\u0131n geli\u015ftirilmesini ve \u00e7inko tipi kaplama i\u00e7in alt tabakalar olarak ekstra y\u00fcksek mukavemetli d\u00f6n\u00fc\u015f\u00fcmle ind\u00fcklenen plastisite (TRIP) \u00e7eliklerin sunulmas\u0131n\u0131 g\u00f6rmektedir. y\u00fcksek s\u00fcnekli\u011fin yan\u0131 s\u0131ra 1500 MPa’ya yakla\u015fan akma dayan\u0131m\u0131 sunacakt\u0131r.<\/span><\/p>\n

\u00c7inkonun vakumda buharla biriktirilmesine dayanan olas\u0131 yeni bir kaplama i\u015flemi gibi, elektroferitik astar kaplamas\u0131n\u0131 ortadan kald\u0131ran, \u00f6nceden boyanm\u0131\u015f g\u00f6vde bitmi\u015f \u00e7elik sac da bekleniyor.<\/span><\/p>\n

Uluslararas\u0131 bir \u00e7elik konsorsiyumu taraf\u0131ndan y\u00fcr\u00fct\u00fclen hafif a\u011f\u0131rl\u0131kl\u0131 \u00e7elik otomotiv yap\u0131lar\u0131na y\u00f6nelik USLAB projesinin son a\u015famas\u0131n\u0131n sonucu olarak, maliyet cezas\u0131 olmadan ara\u00e7 g\u00f6vde a\u011f\u0131rl\u0131\u011f\u0131nda %25 azalma ve par\u00e7a say\u0131s\u0131nda %20 azalma olmu\u015ftur. Porsche Engineering Services taraf\u0131ndan denetlenen \u015firketler.<\/span><\/p>\n

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Otomotiv M\u00fchendisli\u011fi Puanlar\u0131<\/span>
\nOtomotiv<\/a> M\u00fchendisli\u011fi s\u0131ralama<\/span>
\nOtomotiv M\u00fchendisli\u011fi maa\u015f<\/span>
\nOtomotiv M\u00fchendisli\u011fi \u00fcniversiteleri<\/span>
\nOtomotiv m\u00fchendisli\u011fi ek\u015fi<\/span>
\nOtomotiv M\u00fchendisli\u011fi Is imkanlar\u0131<\/span>
\nOtomotiv M\u00fchendisli\u011fi B\u00f6l\u00fcm\u00fc<\/span>
\nOtomotiv M\u00fchendisli\u011fi dersleri<\/span><\/p>\n

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Ticari olarak temin edilebilen malzemeler ve \u00fcretim s\u00fcre\u00e7leri kullan\u0131larak uygulanabilir bir tasar\u0131m hedefi de kar\u015f\u0131lanm\u0131\u015ft\u0131r. Burulma sertli\u011finde %80 ve b\u00fck\u00fclmede %52 art\u0131\u015f da kaydedilmi\u015ftir ve tahmini g\u00f6vde kabu\u011fu maliyeti 947 $’d\u0131r. Benzer bir spesifikasyona g\u00f6re geleneksel olarak yap\u0131lm\u0131\u015f bir g\u00f6vde i\u00e7in 2000 y\u0131l\u0131 kar\u015f\u0131la\u015ft\u0131rma rakam\u0131 i\u00e7in 980 $ al\u0131r.<\/span><\/p>\n

2,7 metre dingil mesafesine sahip 203 kg g\u00f6vde kabu\u011fu, iyi belgelenmi\u015f yap\u0131m teknikleri kullan\u0131larak 20.800 Nm\/derece burulma sertli\u011fine ve 60 Hz’lik ilk burulma titre\u015fim moduna sahiptir.<\/span><\/p>\n

\u00c7arp\u0131\u015fma dayan\u0131kl\u0131l\u0131\u011f\u0131na ili\u015fkin bir s\u00fcper bilgisayar analizi, \u00f6n NCAP ve arka hareketli bariyer seviyelerinin, gerekli h\u0131zdan %17 daha y\u00fcksek d\u00fczeyde elde edildi\u011fini g\u00f6stermi\u015ftir. G\u00f6vde ayn\u0131 zamanda 55 kph\/%50 ofset AMS, Avrupa taraf\u0131 darbe ve \u00e7at\u0131 ezilme gereksinimlerini kar\u015f\u0131lam\u0131\u015ft\u0131r.<\/span><\/p>\n

35 mph \u00f6n NCAP, 31 g’l\u0131k bir tepe yava\u015flama g\u00f6sterdi; bu, %50 AMS ofset gerekliliklerini kar\u015f\u0131lamak i\u00e7in daha sert g\u00f6vde yanlar\u0131n\u0131n gerekli olmas\u0131 bak\u0131m\u0131ndan tatmin edici kabul edildi. Ofset AMS \u00f6n darbe yava\u015flamas\u0131, testin ciddiyetine g\u00f6re iyi bir sonu\u00e7 olarak kabul edilen 35g’de bir tepe noktas\u0131 g\u00f6sterdi.<\/span><\/p>\n

Sim\u00fclasyon, iki ki\u015fi i\u00e7in 1350 kg bo\u015f a\u011f\u0131rl\u0131k art\u0131 113 kg bagaj ve 149 kg a\u011f\u0131rl\u0131kta ger\u00e7ekle\u015ftirildi. Nihai say\u0131mda, yap\u0131n\u0131n %90’\u0131 i\u00e7in 210 ila 550 MPa verim aral\u0131\u011f\u0131nda, 0,65 ila 2 mm kal\u0131nl\u0131klarda y\u00fcksek dayan\u0131ml\u0131 \u00e7elik kullan\u0131lm\u0131\u015ft\u0131r.<\/span><\/p>\n

Yap\u0131n\u0131n yakla\u015f\u0131k %45’i, 0,7 ila 1,7 mm aras\u0131nda de\u011fi\u015fen ve 210 ila 350 MPa akma dayan\u0131mlar\u0131na sahip \u00e7elik elemanlardan olu\u015fan monoside paneller dahil olmak \u00fczere lazer kaynakl\u0131 \u00f6zel yap\u0131m bo\u015fluklar i\u00e7eriyordu. Hidroformlu yan tavan ray\u0131n\u0131 g\u00f6sterir.<\/span><\/p>\n

Rastgele bir g\u00f6zlemciye g\u00f6re, t\u00fcm g\u00f6vde kabu\u011funun \u00f6\u011feleri yap\u0131sal olarak daha verimli ‘g\u00f6r\u00fcn\u00fcr’, ancak yine de, malzemenin b\u00fcy\u00fck bir k\u0131sm\u0131 hala nispeten kullan\u0131l\u0131yor gibi g\u00f6r\u00fcnd\u00fc\u011f\u00fc i\u00e7in, \u00e7elik ‘omurga’ i\u00e7in tam olarak optimize edilmi\u015f bir \u015fekilden \u00e7ok uzak g\u00f6r\u00fcn\u00fcyorlar. i\u015flevinin tamamen \u00e7al\u0131\u015fan bir yap\u0131sal eleman yerine bir ‘\u00f6rt\u00fc’ oldu\u011fu d\u00fc\u015f\u00fck gerilimli alanlar.<\/span><\/p>\n

Belki de a\u011f\u0131rl\u0131k azaltman\u0131n bir sonraki a\u015famas\u0131, y\u00fcksek verimli bir \u00e7elik monokok tasarlamak, ard\u0131ndan bu b\u00f6l\u00fcmde daha sonra tart\u0131\u015f\u0131lacak olan hibrit metal\/plastik teknikleri kullanarak yap\u0131sal olmayan kaplama ve kapak \u015fekillendirme detaylar\u0131 i\u00e7in plastik elemanlar\u0131 kal\u0131plamak olmal\u0131d\u0131r.<\/span><\/p>\n

Hafif ala\u015f\u0131mlar\u0131n geli\u015ftirilmesi Audi’nin al\u00fcminyum ala\u015f\u0131ml\u0131 g\u00f6vde yap\u0131m\u0131 program\u0131n\u0131n 2. A\u015famas\u0131, A12 konsept otomobil bi\u00e7iminde yak\u0131n zamanda bir Motor Show’da tan\u0131t\u0131ld\u0131. 3,76 metre uzunlu\u011funda ve 1,56 metre y\u00fcksekli\u011findeki otomobilin 1,2 litrelik motor formunda sadece 750 kg a\u011f\u0131rl\u0131\u011f\u0131nda oldu\u011fu ve geleneksel \u00e7elik g\u00f6vdeli bir ara\u00e7tan yakla\u015f\u0131k 250 kg daha hafif oldu\u011fu iddia edildi.<\/span><\/p>\n

Audi A8’in Birinci A\u015fama al\u00fcminyum ala\u015f\u0131ml\u0131 yap\u0131s\u0131na k\u0131yasla d\u00f6kme d\u00fc\u011f\u00fcm say\u0131s\u0131 azalt\u0131ld\u0131. D\u00fc\u011f\u00fcmlerin \u00e7o\u011fu art\u0131k ekstr\u00fcde edilmi\u015f b\u00f6l\u00fcmlerin al\u0131n kayna\u011f\u0131 ile \u00fcretiliyor. Sandvi\u00e7 konstr\u00fcksiyon zemin \u00fczerinde y\u00fcksek seviyede oturma sa\u011flanm\u0131\u015ft\u0131r. Dahili y\u00fcksek bas\u0131n\u00e7l\u0131 yeniden \u015fekillendirme tekniklerinin kullan\u0131lmas\u0131, gerekli \u015fekillendirme ve kesme i\u015flemlerinin say\u0131s\u0131n\u0131 azaltm\u0131\u015ft\u0131r.<\/span><\/p>\n

Uygulamalar i\u00e7in 1997 Uluslararas\u0131 Magnezyum Derne\u011fi Tasar\u0131m \u00d6d\u00fcl\u00fc, GM G-van’daki pres d\u00f6k\u00fcm g\u00f6sterge paneli destek kiri\u015fine, \u015eekil 6’ya gitti. 12,2 kg a\u011f\u0131rl\u0131\u011f\u0131nda, yerini ald\u0131\u011f\u0131 kaynakl\u0131 \u00e7elik boru yap\u0131dan 5,9 kg daha hafif tek par\u00e7a bir tasar\u0131md\u0131r. Magnezyum ala\u015f\u0131m\u0131n\u0131n savunucular\u0131, malzemedeki bas\u0131n\u00e7l\u0131 d\u00f6k\u00fcmler d\u0131\u015ftan i\u00e7e kat\u0131la\u015ft\u0131k\u00e7a, nispeten damarl\u0131 bir i\u00e7 k\u0131s\u0131mla birlikte yo\u011fun bir so\u011futulmu\u015f kabuktan yararland\u0131klar\u0131na i\u015faret ediyorlar.<\/span><\/p>\n

Kaplama kal\u0131nl\u0131\u011f\u0131n\u0131n, toplam duvar kal\u0131nl\u0131\u011f\u0131ndan ba\u011f\u0131ms\u0131z olarak nispeten sabit oldu\u011fu s\u00f6ylenir, bu nedenle, malzeme ikame olarak kullan\u0131ld\u0131\u011f\u0131nda kesit boyutunda azalmalar s\u0131kl\u0131kla yap\u0131labilir.<\/span><\/p>\n

AZ91D (%9 al\u00fcminyum, %1 \u00e7inko) ala\u015f\u0131m\u0131 art\u0131k minivanlar i\u00e7in \u00e7\u0131kar\u0131labilir arka koltuklarda uygulama alan\u0131 buluyor. G\u00f6sterilen koltuk sistemlerinde Delphi Automotive, d\u00f6kme magnezyum yast\u0131k \u00e7er\u00e7evesini ve ekstr\u00fcde al\u00fcminyum arka \u00e7er\u00e7eveyi benimseyerek geleneksel yap\u0131ya g\u00f6re %60 a\u011f\u0131rl\u0131k azaltma elde etti.<\/span><\/p>\n

Kompozit g\u00f6sterge panelleri i\u00e7in m\u00fchendislik plastikleri ile birlikte ba\u015fka magnezyum s\u0131n\u0131flar\u0131 da kullan\u0131lmaktad\u0131r. VW ayr\u0131ca, geleneksel \u00e7elik konstr\u00fcksiyona k\u0131yasla %40’\u0131n \u00fczerinde a\u011f\u0131rl\u0131k azalt\u0131m\u0131 sunan, karbon fiberle g\u00fc\u00e7lendirilmi\u015f d\u0131\u015f paneli olan, bas\u0131n\u00e7l\u0131 pres d\u00f6k\u00fcm magnezyumdan bir Polo kap\u0131s\u0131n\u0131 da g\u00f6sterdi.<\/span><\/p>\n

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