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All Journal Teknosains: Media Informasi Sains dan Teknologi Journal of Artificial Intelligence and Digital Business Equivalent: Jurnal Ilmiah Sosial Teknik Indonesian Journal of Maritime Technology or abbreviated (ISMATECH)
Rachmianty, Andi
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Agriculture, Biological Sciences & Forestry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Mechanical Engineering Physics Social Sciences Transportation

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The Analysis of Work Accident Risk in Welding Process for Pipe Repair on Utility Boat PT LSM Rachmianty, Andi; Pragawati, Ni Gusti Ayu Putu Dewi Armay; Ningrat, Andi; Usman, Arif Fudddin; Rusnaedi; Shauqy, Muhammad Azhar
Indonesian Journal of Maritime Technology Vol. 2 No. 2 (2024): Volume 2 Issue 2, December 2024
Publisher : Naval Architecture Department, Kalimantan Institut of Technology

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35718/ismatech.v2i2.1263

Abstract

PT LSM is a shipping company committed to focusing on providing integrated maritime services to support the oil & gas industry, PT LSM has a variety of offshore vessels to support these activities. LSM's shipping area is a rig area, where the area has a high level of danger and risk, therefore an adequate ship is needed both in crew and equipment on board. Especially in the piping system on board, if a leak occurs it can cause fatal things such as engine damage to an explosion and can cause work accidents such as fire and death. To minimize work accidents, risk hazard identification and risk control are made in each job, especially in piping work, namely pipe welding using the HIRADC method. This study used a descriptive qualitative method, in which the authors conducted field observations, interviews, and distributed questionnaires. The results of risk hazard identification, risk assessment and risk control will be entered in the HIRADC (Hazard Identification, Risk Assessment, and Determining Control) table. The conclusion of this study is that 43 hazards and 47 risks have been identified in pipe welding work. In the initial control, the low risk level was 42 risks (89.36%), the medium risk level was 5 risks (10.63%), and the high-risk level was 0 risks (0%). After further control of the identified risks, the risk level of medium risk (10.63%) has changed to low risk, so that all risk levels of the LSM Provider's ship pipe welding work have changed to a low risk level with a total of 47 risks (100%)). The controls used in pipe welding work are substitution, administration, and personal protective equipment (PPE).
Effect of Lifting Lug Hole Diameter Size on Strength Performance in Ship Block Lifting Process: English Arifuddin, Andi Mursid Nugraha; Nizam, Syahrul; Pawara, Muhammad Uswah; Sitorus, Chris Jeremy Verian; Rachmianty, Andi; Ningrat, Andi; Baso, Suandar
Indonesian Journal of Maritime Technology Vol. 3 No. 1 (2025): Volume 3 Issue 1, June 2025
Publisher : Naval Architecture Department, Kalimantan Institut of Technology

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35718/ismatech.v3i1.8481345

Abstract

The safety of the ship block lifting process is always a serious concern during the assembly of ship blocks. The block/structure and equipment must not be damaged during the lifting process. This study aims to determine the structural response values that occur with various hole diameter sizes of the lifting lug during the ship block lifting process. The object of this research is a ship block from the new construction of the Ferry Ro-Ro 1500 GT. The method used is numerical simulation based on finite element method (FEM) software. The simulation is conducted to obtain the stress and deformation values for each size of the lifting lug. The selected ship block load is the largest ship block load, which is 52,380 tons. The number of lifting lugs used in the simulation is 5, with varying diameters of 53, 58, 63, 68, and 73 cm. Based on the simulation results, the diameter of 63 mm gets the minimum normal and shear stress figures. While the minimum von misses stress figure is shown by the variation of the diameter of 73 mm. While the smallest deformation figure is shown by the variation of the diameter of 53 mm. In general, all variations of lifting lug holes can still be applied with the note that the weight of the load must be considered.
The Influence To Service Quality, Facilities, and Ticket Price on Passenger Satisfaction at PT. Pelni (Persero) Baubau Branch Hasan, Muslihati; Ningrat, Andi; Usman, Arif Fuddin; Fitriah, Rifkah; Rachmianty, andi
RIGGS: Journal of Artificial Intelligence and Digital Business Vol. 3 No. 2 (2024): Mei - Juli
Publisher : Prodi Bisnis Digital Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/riggs.v3i2.1001

Abstract

Sea transportation is the most important means of inter-island connectivity in Indonesia. Companies must try to make customers feel satisfied by providing better offers and services, companies must be able to maintain their market position in the midst of increasing competition. The purpose of this study was to evaluate the variables of service quality, facilities and ticket prices partially on passenger satisfaction at PT. Pelni (Persero) Baubau Branch. Evaluating the quality of services, facilities and ticket prices simultaneously on passenger satisfaction and evaluate which of the three parameters used has the most influence on passenger satisfaction. The data used in this study are primary data obtained by distributing questionnaires to the passengers of PT. Pelni (Persero) Baubau Branch has 50 employees using multiple linear regression analysis techniques. The results showed that Service Quality (X1) had a significant level of 0.013 <0.05. This means that service quality has a positive and significant effect on passenger satisfaction. Facility (X2) has a significant level of 0.012 <0.05. This means that facilities have a positive and significant effect on passenger satisfaction. Ticket prices (x3) have a significant level of 0.019 <0.05. This means that ticket prices have a positive and significant effect on passenger satisfaction.
Enhancing Ship Seaworthiness Supervision: A Study at KSOP Class II Kendari Rachmianty, Andi; Yusri, Muhammad; Ningrat, Andi; Arifuddin, Andi Mursid Nugraha; Usman, Arif Fudddin; Rusnaedi
Indonesian Journal of Maritime Technology Vol. 3 No. 2 (2025): Volume 3 Issue 2, December 2025
Publisher : Naval Architecture Department, Kalimantan Institut of Technology

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35718/ismatech.v3i2.8481363

Abstract

Ship accidents often occur due to ships being unseaworthy to sail. The harbor master plays an important role in supervising the seaworthiness of ships and port activities. However, ship accidents still often occur due to the unseaworthiness of ships to sail. This study examines the level of performance of the harbor master at KSOP Class II Kendari. The method used is the Costumer Satisfaction Index (CSI). The questionnaire was given to the sample which was calculated using the Slovin calculation. The results of the questionnaire have gone through validity and reliability tests and show that the results obtained are valid and reliable. The percentage value of CSI obtained reached 84.95%. This figure indicates that customers are very satisfied with the performance of KSOP Class II Kendari. This shows that KSOP Class II Kendari has succeeded in meeting customer expectations and needs well.
Kepuasan pengguna jasa terhadap ayanan freight forwarding PT Malino Nirwana Trans rachmianty, andi; Rizqy, Miftahul; Muslihati, Muslihati; Usman, Arif Fuddin; Rusnaedi, Rusnaedi
RIGGS: Journal of Artificial Intelligence and Digital Business Vol. 4 No. 4 (2026): November - January
Publisher : Prodi Bisnis Digital Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/riggs.v4i4.3605

Abstract

Pertumbuhan aktivitas logistik dan perdagangan yang semakin kompetitif menuntut perusahaan freight forwarding untuk menyediakan layanan yang mampu memenuhi harapan pengguna jasa secara konsisten. PT Malino Nirwana Trans merupakan perusahaan yang bergerak daIam pengeIoIaan dan pengiriman barang, khususnya komoditas yang membutuhkan penanganan rantai dingin. Kualitas pelayanan freight forwarding yang diberikan sangat menentukan kepuasan pelanggan.   Penelitian ini bertujuan menganalisis bagaimana tingkat kepuasan pelanggan terhadap layanan freight forwarding yang diberikan oleh PT Malino Nirwana Trans dengan menggunakan metode Customer Satisfaction Index (CSI). Metode ini dipilih karena mampu menunjukkan bagaimana tingkat kepuasan pelanggan berdasarkan tingkat kepentingan (importance) dan tingkat kinerja layanan (perfomance). Data diperoleh dengan menyebarkan kuesioner ke konsumen aktif perusahaan dan dilengkapi dengan wawancara untuk memperkuat hasil anaIisis. Instrumen penelitian diuji menggunakan uji validitas dan uji reliabilitas yang menunjukkan item pernyataan dan hasil sebaran kusioner berada pada kategori valid dan reliabeI. Hasil pengolahan data menunjukkan bahwa secara keseluruhan pelanggan menilai Iayanan PT MaIino Nirwana Trans Sangat Puas berdasarkan niIai CSI sebesar 84,8%. Capaian ini mengindikasikan bahwa perusahaan telah mampu memenuhi sebagian besar kebutuhan dan ekspektasi peIanggan, terutama pada aspek keandalan layanan, ketanggapan staf, serta jaminan keamanan pengiriman. Meskipun demikian, beberapa aspek seperti akurasi informasi pelacakan, kecepatan respons layanan pelanggan, dan ketepatan jadwal pengiriman masih memerlukan peningkatan agar kualitas layanan dapat lebih optimal dan berkelanjutan
Occupational Safety and Health Risk Evaluation in Container Handling Operations Using the HIRADC Method: A Case Study at PT. Kaltim Kariangau Terminal, East Kalimantan, Indonesia Usman, Arif Fuddin; Ningrat, Andi; Muslihati, Muslihati; Rachmianty, Andi; Rusnaedi, Rusnaedi
Equivalent: Jurnal Ilmiah Sosial Teknik Vol. 8 No. 2 (2026): Equivalent: Jurnal Ilmiah Sosial Teknik
Publisher : Politeknik Siber Cerdika Internasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59261/jequi.v8i2.293

Abstract

Background: Occupational safety and health is a critically important aspect of container loading and discharging operations at ports, encompassing efforts to create a safe, healthy work environment and prevent workplace accidents and work-related diseases. Objective: This study aims to analyze the application of occupational safety and health in the process of loading and discharging containers at PT. Kaltim Kariangau Terminal. Methods: This study uses the HIRADC (Hazard Identification, Risk Assessment, and Determining Control) method. Results: The results of the risk level assessment before control indicate a High Risk level of 9 risks (23.1%), a Moderate Risk level of 17 risks (43.6%), and a Low Risk level of 13 risks (33.3%). After control, the High Risk level is reduced to 0 risks (0%), with no remaining high-risk work activities; the Moderate Risk level is 8 risks (20.6%); and the Low Risk level is 31 risks (79.4%). To address these hazards and risks, PT. Kaltim Kariangau Terminal has implemented risk controls, namely substitution, engineering controls, administrative controls, and personal protective equipment. Conclusion: The findings demonstrate that systematic hazard identification and hierarchical risk control, when applied rigorously to RTG crane operations in container terminals, can deliver measurable reductions in worker exposure to life-threatening risks and provide a replicable OSH management model for the Indonesian port sector.
Load Factor Analysis of KMP Bambit Pioneer Ship to Enhance Maritime Accessibility in Eastern Indonesia's 3T Regions Rusnaedi, Rusnaedi; Ningrat, Andi; Muslihati, Muslihati; Rachmianty, Andi; Fitriah, Rifkah
Equivalent: Jurnal Ilmiah Sosial Teknik Vol. 8 No. 2 (2026): Equivalent: Jurnal Ilmiah Sosial Teknik
Publisher : Politeknik Siber Cerdika Internasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59261/jequi.v8i2.307

Abstract

Background: As the world's largest archipelagic nation, Indonesia faces the major challenge of providing an equal distribution of public services to 3 not so close and remote frontier region, border (3T) regions. An example: While the government's Sea Toll Program uses pioneer vessels such as KMP Bambit to breach these chasms, efficiency of operation is still a major barrier to progress. This often results in underused capacity Objective: This study aims to analyze the load factor of KMP Bambit on the Merauke-Atsy-Agats-Senggo route and identify strategic recommendations to improve ship capacity utilization and service quality And see if there is a reasonable load factor on KMP Bambit operating from the Merauke-Atsy-Agats-Senggo route. Depending on this finding, strategic advice is put forward with regard to vessel capacity utilisation and service quality. Method: This investigation used quantitative research. Throughout the research period from January 2022 to June 2025, data were collected on operational ship activities and survey results were sought from 65 stakeholders according to the Slovin Formula. The data were analyzed using Load Factor Analysis (LF A) and a SWOT analysis was performed to map internal and external strategic factors. Results: Our findings show that the average load factor for passengers is 42.427% and the cargo/vehicle load factor is 45.141%, both significantly below the Ministry of Transportation's 70% efficiency target. Problems include inconsistent sailing frequencies, limited port infrastructure, and changing seasonal demand levels. Conclusion: Being in Quadrant I of SWOT Matrix, KMP Bambit needs to take a growth-oriented strategy. Major recommendations are to modernize ship facilities, implement an online reservation system, and adjust sailing schedules in line with community needs in order to bring sustainable economic growth south to the remote regions of South Papua it serves.
OPTIMASI ALAT PENGGERAK KAPAL IKAN BERBASIS ENERGI TERBARUKAN DAN MESIN DIESEL BERDASARKAN VARIASI MUSIM DAN OPERASIONAL NELAYAN Mubarak, Azhar Aras; Rachmianty, Andi; Azrullah, Azrullah; Maada, Yayan
Teknosains Vol 20 No 1 (2026): Januari-April
Publisher : Fakultas Sains dan Teknologi Universitas Islam Negeri Alauddin Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Sektor perikanan merupakan salah satu faktor kunci yang menopang perekonomian masyarakat di wilayah pesisir di Indonesia, termasuk di Kabupaten Buton. Mayoritas nelayan di wilayah ini menggunakan kapal yang memiliki ketergantungan tinggi terhadap bahan bakar fosil yang harganya fluktuatif. Di sisi lain, potensi solar energy yang melimpah di Indonesia, dapat digunakan untuk menggantikan sumber energi konvensional, membantu nelayan dalam mengurangi ketergantungan pada bahan bakar diesel. Penelitian ini bertujuan untuk menganalisis desain kapal purse seine berbasis data lapangan, menghitung karakteristik tahanan dan stabilitas kapal, serta mengevaluasi potensi penerapan sistem tenaga hybrid berbasis panel surya pada kapal nelayan. Metode penelitian meliputi: (1) pengumpulan data lapangan, (2) pemodelan geometri kapal menggunakan Maxsurf Modeler, (3) analisis tahanan kapal dengan metode Holtrop dan Van Oortmerssen melalui Maxsurf Resistance, (4) analisis stabilitas menggunakan Maxsurf Stability, serta (5) analisis potensi energi matahari dan perhitungan produksi PLTS pada kapal menggunakan data radiasi lokal Mawasangka Tengah. Secara keseluruhan, penelitian ini menunjukkan bahwa desain kapal memenuhi standar teknis, pemodelan hidrodinamika memberikan gambaran performa yang akurat, dan penerapan sistem energi hybrid berbasis panel surya sangat potensial untuk meningkatkan efisiensi energi serta keberlanjutan operasi kapal nelayan.
Co-Authors Arif Fuddin Usman Arifuddin, Andi Mursid Nugraha Azrullah, Azrullah Chris Jeremy Verian Sitorus Fitriah, Rifkah Hasan, Muslihati M. Uswah Pawara Maada, Yayan mubarak, azhar aras Muhammad Yusri Muslihati Ningrat, Andi Nizam, Syahrul Pragawati, Ni Gusti Ayu Putu Dewi Armay Rizqy, Miftahul Rusnaedi Rusnaedi, Rusnaedi Shauqy, Muhammad Azhar Suandar Baso