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All Journal Mekanika: Majalah Ilmiah Mekanika
Nugroho, Andi Cahyo Prasetyo Tri
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Corrosion Rate Analysis and Prediction of the Remaining Life of the Research Vessel to Improve Ship Safety Aspects Nugroho, Andi Cahyo Prasetyo Tri; Sasmito, Cahyo; Fuadi, Abid Paripurna; Hendrik, Dany; Rahadi, Cakra Wijaya Kusuma; Permana, Rizqi Dian; Fuadi, Noor Muhammad Ridha
Mekanika: Majalah Ilmiah Mekanika Vol 22, No 2 (2023): MEKANIKA: Majalah Ilmiah Mekanika
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/mekanika.v22i2.75062

Abstract

Corrosion is a major concern in the marine industry, compromising the safety and integrity of ships. This paper presents a corrosion rate analysis and prediction of the remaining life of the Baruna Jaya IV research vessel using Non-Destructive Testing (NDT) ultrasonic testing to improve ship safety aspects. The NDT ultrasonic testing was conducted on the ship's hull to evaluate the thickness and detect any hidden corrosion. The results were used to develop a corrosion rate model and predict the remaining life of the ship using a probabilistic model. The study found that the corrosion rate of the ship was high, and the remaining life of the ship was estimated to be less than five years. The study’s findings can be used to develop a maintenance and repair strategy to reduce corrosion and improve the safety of the Baruna Jaya IV research vessel.
Patrol Boat Strengthening Against a Collision with COLL Notation Based on Class Rules and Regulation in Indonesia – An Overview Fuadi, Abid Paripurna; Muttaqie, Teguh; Nugroho, Andi Cahyo Prasetyo Tri; Kusuma, Yudiawan Fajar; Mukti, Suherman; Kurniawan, Mohammad Arif; Firmandha, Topan; Ismail, Muhammad
Mekanika: Majalah Ilmiah Mekanika Vol 23, No 1 (2024): MEKANIKA: Majalah Ilmiah Mekanika
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/mekanika.v23i1.74967

Abstract

Indonesian maritime security and law enforcement rely frequently on Patrol boats. However, collisions can occur during the operation, leading to potential loss of life, damage to the ship, and environmental harm. In preventing such incidents, the government needs to strengthen the patrol boats against collisions in accordance with class rules and regulations in Indonesia.The COLL notation is an additional notation for vessel collision protection, which specifies the required strength of the vessel's hull and structural components to minimize the risk of damage and reduce the consequences of a collision. This study highlights the key areas that require strengthening, including the vessel’s bow, stern, and hull, as well as the propulsion system that needs to be considered in the design stage. The addition of collision bulkheads, increasing the hull plating thickness, and reinforcing the engine mounts and shafting are also necessary to ensure the vessel's safety against collision. In conclusion, strengthening patrol boats against a collision with COLL notation based on class rules and regulations in Indonesia is one of the methods available that can be applied for the design stage to increase the level of operational safety of patrol boats.
Co-Authors Cahyo Sasmito Firmandha, Topan Fuadi, Abid Paripurna Fuadi, Noor Muhammad Ridha Hendrik, Dany Kurniawan, Mohammad Arif Kusuma, Yudiawan Fajar Moh. Ismail Mukti, Suherman Muttaqie, Teguh Permana, Rizqi Dian Rahadi, Cakra Wijaya Kusuma