Journals / Afyon Kocatepe Üniversitesi Fen ve Mühendislik Bilimleri Dergisi / 2026 / Cilt: 25 Sayı: 2

Design and Static Performance Analysis of a New Rear Underrun Protection Device (RUPD) Using S700 MC Steel

S700 MC Çelik ile Yeni Bir Arka Alt Koruma Sistemi (RUPD) Tasarımı ve Statik Performans Analizi

Ahmet Mete Sabah(AFYON KOCATEPE ÜNİVERSİTESİ, TEKNOLOJİ FAKÜLTESİ, MAKİNE MÜHENDİSLİĞİ BÖLÜMÜ, MAKİNE MÜHENDİSLİĞİ ANABİLİM DALI)0000-0001-7425-399X
Abdurrahman Karabulut(AFYON KOCATEPE ÜNİVERSİTESİ, TEKNOLOJİ FAKÜLTESİ, MAKİNE MÜHENDİSLİĞİ BÖLÜMÜ, MAKİNE MÜHENDİSLİĞİ ANABİLİM DALI)0000-0002-7663-2579
Pages
445–454
Publication Date
2025-04-11
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

The results show that the new design meets regulatory requirements and demonstrates safe structural performance.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:In traffic accidents involving heavy vehicles, the Rear Underrun Protection Device (RUPD) reduces the risk of smaller vehicles sliding under heavy vehicles, providing protection during collisions and reducing severe injuries and fatalities.
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Key Findings & Data:This study developed a new RUPD design using S700 MC steel material, and its performance was evaluated under the ECE R58-03 regulation.
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Conclusion & Impact:The results show that the new design meets regulatory requirements and demonstrates safe structural performance.
🔬Design:Modeling & Simulation
📍Scope:Comprehensive Sample
⚙️Variables:Ara alt koruma sistemi (RUPD · ECE R58-03 yönetmeliği · S700 MC Çelik malzemesi

Abstract

In traffic accidents involving heavy vehicles, the Rear Underrun Protection Device (RUPD) reduces the risk of smaller vehicles sliding under heavy vehicles, providing protection during collisions and reducing severe injuries and fatalities. This study developed a new RUPD design using S700 MC steel material, and its performance was evaluated under the ECE R58-03 regulation. A computer-aided design (CAD) model was created and finite element analyses (FEA) were conducted during the design process. Forces were applied at specific points to ensure proper loading of the structure, and according to the analysis results, total deformation values remained below the 100 mm limit, and all stress values were found to be below the yield strength of S700 MC steel. The results show that the new design meets regulatory requirements and demonstrates safe structural performance. Additionally, unlike the dynamic analyses performed in the literature, this study used static analyses for optimization studies and determined that the design with welded connections is more robust and reliable. Future studies may include dynamic analyses for more comprehensive evaluations.

Özet

Ağır vasıtaların karıştığı trafik kazalarında, küçük araçların ağır vasıtaların altına girme riskini azaltmak amacıyla kullanılan Arka Alt Koruma Sistemi (RUPD), çarpma anında koruma sağlayarak ciddi yaralanma ve ölümleri azaltır. Bu çalışmada, S700 MC çelik malzemesi kullanılarak yeni bir RUPD tasarımı geliştirilmiş ve ECE R58-03 yönetmeliğine uygun olarak performansı değerlendirilmiştir. Tasarım sürecinde, bilgisayar destekli tasarım (CAD) modeli oluşturulmuş ve sonlu eleman analizleri (FEA) gerçekleştirilmiştir. Yapının doğru bir şekilde yüklenmesini sağlamak için belirli noktalardan kuvvetler uygulanmış ve analiz sonuçlarına göre, toplam deformasyon değerlerinin 100 mm sınırının altında kaldığı ve tüm gerilme değerlerinin S700 MC çeliğinin akma dayanımının altında olduğu tespit edilmiştir. Sonuçlar, yeni tasarımın yönetmelik gerekliliklerini karşıladığını ve güvenli bir yapısal performans sergilediğini göstermektedir. Ayrıca, literatürde yapılan dinamik analizlerin yerine, bu çalışmada statik analizler kullanılarak optimizasyon çalışmaları yapılmış ve kaynaklı bağlantıların kullanıldığı tasarımın daha sağlam ve güvenilir olduğu belirlenmiştir. Gelecek çalışmalarda dinamik analizlerin eklenmesiyle daha kapsamlı değerlendirmeler yapılabilir.

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Cite This Article

Sabah, A. M., Karabulut, A. (2025). Design and Static Performance Analysis of a New Rear Underrun Protection Device (RUPD) Using S700 MC Steel. Afyon Kocatepe Üniversitesi Fen ve Mühendislik Bilimleri Dergisi, Cilt: 25 Sayı: 2, 445–454. https://doi.org/10.35414/akufemubid.1512338

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