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Journals / Journal of Eta Maritime Science / 2019 / Cilt: 7 - Sayı: 4

Strait of İstanbul Crossing Simulation of a VLCC Type Ship in Autopilot Mode

VLCC Tipi Bir Geminin Otopilot Modunda İstanbul Boğazı’nı Geçiş Simülasyonu

İsmail BAYEZİT
Rahman BİTİRGEN
Muhsin HANÇER
Ömer Kemal KINACI
Pages
304–316
DOI
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AI Summary & Key Takeaways

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

Simulation results show that the ship can safely voyage through the Strait of İstanbul in autopilot mode.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:According to Maritime Traffic Regulations for the Turkish Straits, “steering shall always be by hand” and “automatic steering devices shall never be used”.
📊
Key Findings & Data:In this study, navigation of a 320m long ship through the Strait of İstanbul in autopilot mode was simulated.
💡
Conclusion & Impact:Simulation results show that the ship can safely voyage through the Strait of İstanbul in autopilot mode.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

According to Maritime Traffic Regulations for the Turkish Straits, “steering shall always be by hand” and “automatic steering devices shall never be used”. However, it is considered that recent technological boost in computer science and control engineering opened this regulation to discussion; as today, automatic steering devices are a lot more safer. In this study, navigation of a 320m long ship through the Strait of İstanbul in autopilot mode was simulated. Ship motion equations are nonlinear and have three degree-of-freedom. Rudder was controlled by PD controller. Maximum speed of the ship during navigation was 10 knots as per traffic regulations. It was assumed that there was no current in Strait of İstanbul during ship’s passage. Proportional and derivative gains were optimized by genetic algorithm. Simulation results show that the ship can safely voyage through the Strait of İstanbul in autopilot mode.

Özet

Dünyanın en dar su yollarından biri olan İstanbul Boğazı’nda, Türk Boğazları Deniz Trafik Düzeni Tüzüğü uyarınca, gemi geçişi esnasında otopilot kullanımı yasaktır. Ancak son yıllarda bilgisayarların günlük hayatın her evresine dahil olması ve kontrol mühendisliğindeki kayda değer ilerlemeler emniyetli otopilotajın önünü açmıştır. Bu çalışmada 320m boyunda bir geminin otopilot modunda İstanbul Boğazı geçiş simülasyonu gerçekleştirilmiştir. Gemi hareket denklemleri üç serbestlik dereceli ve nonlineer olarak ele alınmış ve geminin dümeni oransal ve türevsel kontrolör kullanılarak kontrol edilmiştir. Azami hız tüzüğe uygun olarak 10 knot alınmıştır. Boğaz’daki akıntı hesaplara dahil edilmemiştir. Kontrolör kazançları genetik algoritma kullanılarak optimize edilmiştir. Gerçekleştirilen simülasyonlar sonucunda geminin otopilot modunda İstanbul Boğazı’nı emniyetli bir şekilde geçtiği gözlemlenmiştir.

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Cite This Article

BAYEZİT, İ., BİTİRGEN, R., HANÇER, M., KINACI, Ö. K. (2019). Strait of İstanbul Crossing Simulation of a VLCC Type Ship in Autopilot Mode. Journal of Eta Maritime Science, Cilt: 7 - Sayı: 4, 304–316. https://ajindex.com/articles/169180

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