Amerika Pazarı İçin Elektrikli Monokok Şasi Aracın Önden Çarpmada Batarya Güvenliği Doğrulama Çalışması

Year 2023, Volume: 2 Issue: 1, 20 - 39, 31.07.2023

Haydar Livatyalı , Ümit Dardeh

Abstract

Kuzey Amerika pazarı için geliştirilen bir monokok elektrikli yürür şasi projesinin pazara giriş isterlerinin karşılanması için sağlanması gereken mevzuat koşullarından biri olan FMVSS-305’in 35 mph (56 km/s) hız ile rijit duvara önden çarpma vakası incelendi ve sonlu elemanlar modeli oluşturularak simülasyon ortamına aktarıldı. Analizlerde LS-DYNA dinamik açık çözücü kullanıldı. Çarpmada aracın batarya bölmesine mekanik girişimin önlenmesi için, benzetimlerde ivme/yer değiştirme, sönümlenen enerji ve yapının mekanik bütünlüğünü ifade eden geometrik veriler esas alındı. Önerilen ilk tasarımda önden rijit duvara çarpma sırasında ana taşıyıcı şasi raylarında sürekli olmayan enerji akışı gözlemlendi. Yapısal tasarım iterasyonlar ile değiştirilerek iyileştirildi ve mevzuata uygun hale getirildi.

Keywords

FMVSS-305, pasif güvenlik, çarpışma güvenliği, elektrolit sızıntısı

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