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All Journal Jurnal Sains Teknologi Transportasi Maritim Jurnal Bahari dan Teknologi (BARTEK)
Ali Khamdilah
Politeknik Bumi Akpelni Semarang
Control & Systems Engineering Decision Sciences, Operations Research & Management Electrical & Electronics Engineering Energy Engineering Materials Science & Nanotechnology Mechanical Engineering Transportation

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Upaya Kesiapan Manajemen Jasa Perbaikan Terhadap Pelayanan Perbaikan Sistem Otomatisasi Kontrol Kapal Ali Khamdilah; Sulida Erliyana
Nama Jurnal Akmi Vol 3 No 1 (2021): Jurnal sitektransmar Mei 2021
Publisher : LPPM AKMI SUAKA BAHARI CIREBON

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51578/j.sitektransmar.v3i1.32

Abstract

Tujuan dari penelitian ini untuk mengetahui seberapa besar kesiapan dan solusi yang dilakukan manajemen jasa perbaikan dalam melayani permintaan pengguna jasa, dengan latar belakang jauhnya jarak tempuh tempat jasa perbaikan dengan lokasi posisi kapal dari pihak pengguna jasa. Dengan pokok masalah yaitu tidak tersedianya perwakilan manajemen jasa perbaikan terdekat di daerah lokasi posisi kapal berada. Dimana keinginan pengguna jasa untuk segera bisa diselesaikan pekerjaan perbaikan kapal, yang sangat diperlukan dalam pengoperasian kapal tersebut. Metode pengumpulan data dengan cara terjun langsung kelapangan dalam penanganan perbaikan kapal serta melakukan pengamatan dan wawancara tentang strategi pelayanan yang dilakukan oleh manajemen jasa perbaikan. Kesimpulan yang didapat, bahwa Pelayanan jasa tetap bisa dilakukan meskipun terkendala dengan jarak ataupun lokasi kapal. dan dibukanya perwakilan manajemen jasa perbaikan dan kerjasama dengan rekanan kerja sangat membantu pada hal keuntungan dan waktu tempuh perbaikan.
Analisis Membran Filter Mikron Terhadap Produktivitas Reverse Osmosis Fresh Water Maker di MT. SC Warrior Luvis Figo; Ali Khamdilah; Eko Nur Hidayat; Fajar Pujiyanto
JURNAL BARTEK Vol 1 No 1 (2025): Jurnal Bahari dan Teknologi [BARTEK]
Publisher : Politeknik Bumi Akpelni Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.6425/ckcy6t06

Abstract

MT. SC Warrior ship is a tanker designed to transport processed oil cargo on long-distance shipping routes. One of the main facilities to support ship shipping activities is the Reverse Osmosis (RO) Fresh Water Maker system. This equipment functions to produce fresh water with the main ingredient being sea water. The RO system utilizes a high pressure pump and a micron filter membrane as the main components in the process of converting seawater into fresh water. The problem with RO is a decrease in fresh water productivity, causing a fresh water deficit in the ship. The problem is caused by low hydrostatic pressure in the RO system, and the micron filter membrane's function is not optimal in filtering sea water. This condition disrupts ship operations where the availability of fresh water is insufficient in quantity. In order to avoid the same problems, proper preventive and corrective measures are needed.  Planned maintenance according to PMS and correct procedures must be carried out properly and correctly, which is important in maintaining the performance of the RO system. The need for consistent and proper maintenance, it is hoped that the RO system can continue to function effectively to support ship operations without obstacles.
Analisis Gangguan Kerja Potensiometer Pada Modul Kendali Steering Utama Type Rexpeller MV. Fanny Fajar Pujiyanto; Ali Khamdilah; Eka Darmana; Santhi Wilastari; Dwi Sulistyorini
JURNAL BARTEK Vol 1 No 2 (2025): Jurnal Bahari dan Teknologi [BARTEK]
Publisher : Politeknik Bumi Akpelni Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.6425/6easm369

Abstract

Modern ship steering systems utilizing Rexpeller Thrusters rely heavily on the accuracy of position sensor readings, particularly potentiometers. This study analyzes signal disturbances in the potentiometer of the MV Fanny steering system, characterized by instability in resistance and output voltage. A qualitative descriptive research method was employed. Measurement results indicate voltage spikes at 50° and drops at 90°, as well as resistance anomalies at 70° and 110°. These disturbances cause the control system to receive erroneous thrust position data, triggering unnecessary automatic corrective commands, known as “self-moving steering.” Resistance–voltage versus angle plots reinforce the indication of localized damage on the potentiometer’s resistive track. System simulation shows that the error signals activate the ECU, causing continuous corrective actions. The implications of this research reveal that potentiometer instability poses a serious threat to ship operational safety by inducing uncommanded rudder movements and reducing control accuracy. This underscores the necessity of upgrading sensor technology from analog potentiometers to more reliable feedback devices and implementing periodic signal monitoring. Academically, the study contributes to the development of electrical engineering knowledge by establishing the relationship between sensor degradation and control instability. Inspection findings confirm that potentiometer faults significantly disrupt ship navigation, thus requiring recalibration, physical inspection, component replacement, and the implementation of redundant sensor systems to ensure steering reliability and safety.
Co-Authors Dwi Sulistyorini Eka Darmana Eko Nur Hidayat Fajar Pujiyanto Luvis Figo Santhi Wilastari Sulida Erliyana