Eksenel yükler altında bio-ilhamlı yapı dolgulu ince cidarlı alüminyum hibrit tüplerin çarpışma performanslarının incelenmesi

Yıl 2024, Cilt: 39 Sayı: 2, 1303 - 1314, 30.11.2023

Murat Altın Selin Arıcı

https://doi.org/10.17341/gazimmfd.1287380

Öz

Araçlar ile ilgili kazalar dünya çapında önemli bir sorundur ve bu durum toplum için büyük bir ekonomik kayıp oluşturmaktadır. Bilindiği üzere, diğer tüm kaza türlerinde olduğu gibi (düşük hızlı kazalar hariç), düz yolda hızla hareket eden araçların çarpması çok kısa bir zaman diliminde gerçekleşir. Bu kısa sürede aracın en az seviyede zarar görmesi istenmektedir. Taşıt yapılarının tasarımında en önemli parçalardan biri enerji sönümleyici profillerdir. Enerji sönümleyici profillerin tasarımında ve test edilmesinde, kaza esnasında en üst seviyede koruma sağlaması istenmektedir. Araçlarda kazalardan kaynaklanan hasarların azaltılması için, son yıllarda çok çeşitli enerji sönümleyici türleri araştırılmıştır. Bu alanda otomotiv endüstrisindeki bir başka önemli eğilim, otomobillerde biyo-ilhamlı geometrik kesit gibi farklı yapıların enerji sönümleyiciler olarak kullanılmasıdır. Bu çalışmada, hibrit tüplerin enerji yutma kabiliyetini geliştirmek için karahindibanın yapısından esinlenerek üç farklı bio-ilhamlı yapı tasarımı yapılmıştır (1M, 2M ve 3M). Tüm modeller aynı koşullarda deforme edilmiştir. Sonuçlar, 3M modelinin performansının diğer modellere göre önemli ölçüde üstün olduğunu göstermiştir. Hibrit tüpler ile geleneksel boş dairesel tüpler (0M) arasında yapılan karşılaştırmada 3M modelinin ezme kuvveti verimliliğinin %8,63, enerji sönümleme kapasitesinin %22,64 arttığı belirlenmiştir.

Anahtar Kelimeler

Pasif güvenlik sistemleri, Hibrit enerji sönümleyiciler, Biyo-ilhamlı yapılar, Enerji sönümleme kapasitesi, Ezilme kuvveti verimi

Destekleyen Kurum

Gazi Üniversitesi Bilimsel Araştırma Projeleri Koordinasyon Birimi

Proje Numarası

FYL-2021-7392

Teşekkür

Bu çalışmaya, FYL-2021-7392 nolu proje ile sağladığı destekten dolayı Gazi Üniversitesi Bilimsel Araştırma Projeleri Koordinasyon Birimi’ne teşekkür ederiz.

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