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All Journal Jurnal HIDROPILAR Saintara : Jurnal Ilmiah Ilmu-Ilmu Maritim
Kencono, Dolok Joko
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Computer Science & IT Earth & Planetary Sciences Economics, Econometrics & Finance Education Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Mathematics Mechanical Engineering Physics Social Sciences Transportation

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Model Perhitungan Volume Pekerjaan Lambung Kapal Niaga Kencono, Dolok Joko; Suwasono, Bagiyo; Azhar, Ali
Saintara: Jurnal Ilmiah Ilmu-Ilmu Maritim Vol 9 No 1 (2025): SAINTARA (Maret 2025)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat, Akademi Maritim Nusantara Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52475/saintara.v9i1.383

Abstract

Indonesia is a maritime country where most of its territory is in the form of oceans, so many people utilize its marine resources. The sea is currently widely used as a transportation medium for people and logistics using commercial ships. With so many commercial ships in Indonesia, the ship repair industry is also increasingly needed because it requires regular maintenance and repair according to the rules of ship classification. Hull repair treatment includes scraping, washing with fresh water, blasting (full blasting, sweep blasting, and spot blasting), painting, and replating (based on ultrasonic thickness test results). This research will focus more on container ships, bulk carriers, and oil tankers. In ship repair, the condition of the ship’s body, especially the hull, is the most critical concern. The calculation of the volume of hull work on each shipyard is different, making it difficult for the ship owner to estimate the repair time to be carried out. In this case, this study aims to determine the efficiency of the volume of hull repair work on commercial ships so that maintenance/repair work can run optimally. The method used is the calculation of Lloyd’s Registers with the Analytical Hierarchy Process (AHP). The analysis results show that the ship’s hull work is significantly different on the MT. Cosmic 15 because it has a difference in calculations from the shipyard with Lloyd’s, which is 203.636 m2. In the Analytical Hierarchy Process (AHP) analysis, the calculation of CR (Consistency Ratio) gets inconsistent results because the value is more than 0.1, namely 5.303. This is because of the data on the hull area of MT. Cosmic 15 is different in each shipyard where the ship docks.
Karakter Arus Perairan Selat Bali di Kedalaman Berbeda pada Periode Tahun 2024: Characteristics of Bali Strait Water Currents at Different Depths in The Period of 2024 Kencono, Dolok Joko; Pranowo, Widodo Setiyo; Prasita, Viv Djanat
Jurnal Hidropilar Vol. 11 No. 1 (2025): Jurnal Hidropilar
Publisher : Sekolah Tinggi Teknologi Angkatan Laut (STTAL)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37875/hidropilar.v11i1.376

Abstract

Selat Bali adalah selat yang memisahkan antara pulau Jawa (di sebelah Timur) dengan pulau Bali (di sebelah Barat). Perairan selat Bali tentunya memiliki aliran arus yang mengalir sesuai musimnya. Penelitian ini akan meneliti tentang kecepatan dan arah arus di selat Bali selama tahun 2024 pada beberapa kedalaman. Tujuan dari penelitian ini adalah untuk memberikan pemahaman lebih tentang kecepatan dan arah arus pada setiap kedalaman perairan, serta kontribusinya terhadap proses-proses oseanografi di selat Bali. Kedalaman yang digunakan diantaranya 0,49 m, 21,6 dan 40,34 m dengan analisa dibantu software Ocean Data View (ODV) untuk mengetahui kecepatan dan melihat arah arus. Kecepatan arus pada kedalaman 0,49 m memiliki rata-rata 0,059 m/s, pada kedalaman 21,6 m memiliki rata-rata 0,23 m/s dan pada kedalaman 40,34 m memiliki rata-rata 0,059 m/s. Dari pola arus yang dihasilkan juga diketahui bahwa arah arus Selat Bali memiliki perbedaan arah aliran. Sepanjang tahun 2024 untuk kedalaman 0,49 m dan 21,6 m memiliki arah arus yang hampir sama yaitu mengalir dari arah Utara menuju ke Selatan. Kemudian untuk kedalaman 40,34 memiliki arah arus yang berbeda dan berlawanan, yaitu arah cenderung mengalir dari arah Selatan menuju ke Utara. Hasil analisa menunjukkan karakteristik arus di selat Bali diduga dipengaruhi oleh dinamika angin dan variasi kedalaman.
Co-Authors Ali Azhar Bagiyo Suwasono Viv Djanat Prasita Widodo S Pranowo