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All Journal Machine : Jurnal Teknik Mesin Journal of Artificial Intelligence and Digital Business ARMADA : Jurnal Penelitian Multidisiplin
Muhammad Aris Kastian
Program Studi Teknologi Rekayasa Permesinan Kapal, Politeknik Maritim AMI Makassar, Indonesia
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Identifying Critical Factors Contributing to Export Logistics Disruptions: A 6M Fishbone Analysis of Freight Forwarder Operations in Seaborne Shipping at PT. Q Logs Indonesia Kastian, Muhammad Aris; Pakonglean, Rita; Ningrat, Andi; Syahrir, M.
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.v4i4.3938

Abstract

The export logistics process in seaborne shipping is highly complex, influenced by numerous factors that can affect efficiency, timeliness, and safety of shipments. Freight forwarders, such as PT. Q Logs Indonesia, play a crucial role in managing and ensuring the smooth movement of export shipments across borders. This study aims to identify and analyze key factors that contribute to disruptions in the shipping process, using the Fishbone (Ishikawa) diagram as a tool. The diagram categorizes potential causes into six main areas: Man (Human Resources), Method (Work Methods), Machine (Equipment and Systems), Materials (Documents and Goods), Mother Nature (Environmental and Regulatory Factors), and Management (Policy and Coordination). Data was collected through interviews, observations, and document analysis. The research identifies several root causes of logistical inefficiencies, including inadequate training, inefficient procedures, outdated systems, document errors, regulatory changes, and mismanagement. By mapping these issues using the Fishbone diagram, the study provides valuable insights into the underlying causes of delays and disruptions in the export logistics process. The findings offer practical recommendations for PT. Q Logs Indonesia to address operational bottlenecks, streamline procedures, and improve the overall reliability and efficiency of seaborne export logistics. These insights are expected to help the company optimize its export operations, reduce delays, and enhance service delivery to customers.
Keterlambatan Operasional Kapal Penumpang dan Implikasinya terhadap Standar Pelayanan: Studi pada KM. Sinabung dan KM. Nggapulu di Pelabuhan Murhum Arif Fuddin Usman; Andi Ningrat; Andi Rachmianty; Muslihati; Muhammad Aris Kastian
ARMADA : Jurnal Penelitian Multidisiplin Vol. 4 No. 2 (2026): ARMADA : Jurnal Penelitian Multidisplin, Febuary 2026
Publisher : LPPM Sekolah Tinggi Ilmu Ekonomi 45 Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55681/armada.v4i2.1925

Abstract

Studi ini bertujuan untuk mengetahui rata-rata tingkat keterlambatan waktu kedatangan dan keberangkatan KM. Sinabung dan KM. Nggapulu di Pelabuhan Murhum, Kota Baubau, Sulawesi Tenggara. Data yang diolah adalah data kuantitatif estimasi waktu kedatangan dengan waktu riil kapal tiba, kemudian estimasi waktu keberangkatan dengan waktu riil kapal berangkat. Hasil penelitian, rata-rata keterlambatan pada KM. Sinabung untuk waktu tiba sebesar 2 jam 13 menit dan waktu berangkat sebesar 2 jam 53 menit. Untuk KM. Nggapulu rata-rata keterlambatan waktu tiba sebesar 1 jam 8 menit dan waktu keberangkatannya sebesar 1 jam 53 menit.  Standar Pelayanan Penumpang Angkutan Laut untuk toleransi keterlambatan sebesar 10 persen, maka KM. Sinabung melebihi batas toleransi, sedangkan KM. Nggapulu masih dalam batas toleransi. Sejumlah masalah utama sebagai penyebab keterlambatan yang memiliki pengaruh kuat adalah kurangnya jumlah petugas pelabuhan, proses pemeriksaan keamanan pada peralatan rusak yang memakan waktu, dan cuaca buruk yang membuat proses debarkasi-embarkasi kerap molor hingga tidak efisien.
Hydraulic Valve Failure Analysis at MT. Beyond Using the FMEA Method Muslihati Hasan; Arif Fuddin Usman; Andi Ningrat; Rifkah Fitriah; Muhammad Aris Kastian
RIGGS: Journal of Artificial Intelligence and Digital Business Vol. 5 No. 2 (2026): Mei-Juli
Publisher : Prodi Bisnis Digital Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/riggs.v5i2.7915

Abstract

Hydraulic valve failure on a tanker can significantly impact operational performance and shipping safety. This study aims to analyze the causes, impacts, and solutions to hydraulic valve failure on the MT. Beyond. The method used was a qualitative descriptive approach, with data collection techniques through observation, interviews, and documentation studies. Data analysis was performed using the Fishbone Diagram method to identify root causes and Failure Mode and Effects Analysis (FMEA) to evaluate the level of failure risk based on severity, occurrence, and detection parameters. The results showed that hydraulic valve failure was influenced by human, machine, material, method, and environmental factors, with the dominant causes being operational errors, low component quality, fluid contamination, and lack of maintenance. The FMEA analysis showed that the key components with high risk were the disc and seat, which had the highest Risk Priority Number (RPN) values of 162 and 132, respectively. Failure of these components can cause uncontrolled flow, potentially reducing overall system performance due to corrosion, leakage, and wear,thus becoming the main priority for repair. The conclusion of this study confirms that improving component quality, regular maintenance, operator training, and implementing an effective monitoring system can reduce the risk of failure and increase the reliability of the ship's hydraulic system.
PENGARUH KOMBINASI VARIASI TEMPERATUR DAN WAKTU TAHAN TERHADAP SIFAT MEKANIK BAJA KARBON DENGAN METODE QUENCHING Amrin Amrin; Musa B. Palungan; Atus Buku; Muhammad Aris Kastian
Machine : Jurnal Teknik Mesin Vol 12 No 2 (2026): Machine : Jurnal Teknik Mesin
Publisher : Jurusan Teknik Mesin Fakultas Sains dan Teknik Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/3a6jcx82

Abstract

Baja karbon merupakan material teknik yang banyak digunakan dalam industri manufaktur dan permesinan karena kekuatan mekaniknya dapat ditingkatkan melalui perlakuan panas (heat treatment). Proses austenisasi dan quenching menjadi metode yang paling umum digunakan untuk menghasilkan struktur martensit yang keras dan kuat, di mana parameter temperatur dan waktu tahan berperan besar dalam menentukan kualitas akhir material. Penelitian ini bertujuan menganalisis pengaruh variasi temperatur austenisasi (650°C, 750°C, dan 850°C) serta waktu tahan (30, 60, dan 90 menit) terhadap kekuatan tarik dan kekerasan Vickers baja karbon menggunakan media pendingin air. Hasil pengujian menunjukkan peningkatan signifikan pada kedua sifat mekanik seiring meningkatnya temperatur dan durasi pemanasan. Nilai kekuatan tarik tertinggi 1.269 MPa dan kekerasan maksimum 380 HV diperoleh pada temperatur 850°C dan waktu tahan 90 menit, menunjukkan terbentuknya martensit yang lebih padat dan homogen setelah quenching. Analisis ANOVA dua arah mengonfirmasi bahwa temperatur dan waktu tahan memberikan pengaruh signifikan (p < 0.05) terhadap sifat mekanik, sementara interaksi keduanya tidak signifikan, sehingga kedua faktor bekerja secara independen. Kondisi optimum perlakuan panas ditetapkan pada 850°C selama 90 menit untuk meningkatkan performa mekanik baja karbon secara maksimal.
Co-Authors Amrin Amrin Andi Ningrat Andi Rachmianty Arif Fuddin Usman Atus Buku Musa B. Palungan Muslihati Muslihati Muslihati Pakonglean, Rita Rifkah Fitriah Syahrir, M.