Article Per Year (5 Year)
p-Index From 2021 - 2026
2.064
P-Index
This Author published in this journals
All Journal Majalah Ilmiah MOMENTUM Jurnal Universal Technic JURNAL SAINS DAN TEKNOLOGI MARITIM Sejahtera: Jurnal Inspirasi Mengabdi Untuk Negeri Jurnal Penelitian Rumpun Ilmu Teknik JPNM : Jurnal Pustaka Nusantara Multidisiplin Jurnal Sains Bangunan
Purwanto
Universitas Maritim AMNI Semarang
Religion Humanities Astronomy Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Environmental Science Industrial & Manufacturing Engineering Mechanical Engineering Social Sciences Transportation Other

Published : 13 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 13 Documents
Search

 1   2 
Analisis Kinerja Bongkar Muat General Cargo di PT Pelabuhan Tanjung Priok Cabang Tanjung Pandan Riyoldi; Sutini; Zihni Ihkamuddin; Purwanto
JPNM Jurnal Pustaka Nusantara Multidisiplin Vol. 4 No. 1 (2026): February : Jurnal Pustaka Nusantara Multidisiplin (ACCEPTED)
Publisher : SM Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59945/jpnm.v4i1.852

Abstract

Penelitian ini menganalisis kinerja operasional proses bongkar muat general cargo di PT Pelabuhan Tanjung Priok, Cabang Tanjung Pandan, dengan fokus pada produktivitas, efisiensi waktu, serta biaya operasional. Pendekatan yang digunakan adalah metode kuantitatif untuk mengukur secara objektif durasi laytime, tingkat keterlambatan operasi, dan konsekuensi finansial yang ditimbulkan. Hasil penelitian menunjukkan bahwa durasi laytime aktual berkisar antara 30 hingga 35 jam, dan sekitar 50 persen kegiatan operasional mengalami keterlambatan yang berujung pada timbulnya biaya demurrage tambahan rata-rata sebesar Rp75 juta per kapal. Faktor-faktor utama yang menghambat kinerja meliputi keterbatasan alat bongkar muat, dengan hanya dua crane yang beroperasi antrian kapal yang tidak terhindarkan, serta ketergantungan pada kondisi cuaca yang memengaruhi kelancaran aktivitas. Temuan penelitian ini menegaskan perlunya strategi perbaikan yang terukur, seperti penambahan alat bongkar muat, penerapan sistem kerja berbasis shift 24 jam, serta digitalisasi proses administrasi untuk mempercepat alur pelayanan. Rekomendasi tersebut diproyeksikan mampu meningkatkan efisiensi operasional sebesar 30 hingga 40 persen, sekaligus menekan potensi pemborosan biaya akibat keterlambatan. Penelitian ini memberikan kontribusi penting bagi manajemen pelabuhan sebagai dasar pengambilan keputusan strategis dalam meningkatkan keandalan, daya saing, dan kualitas layanan operasional pelabuhan di era logistik modern.
Pengaruh Hasil Pengelasan Listrik dan Asetilin pada Plat Bordes terhadap Kekuatan Tarik, Struktur Mikro, Makro dan NDT (Non Destrutive Testing) Afip Nur Kholis; Sunu Arsy Pratomo; Mu'izzaddin Wa'addulloh; Purwanto Purwanto
Jurnal Universal Technic Vol. 5 No. 1 (2026): Jurnal Universal Technic
Publisher : Fakultas Teknik Universitas Maritim AMNI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58192/unitech.v5i1.4159

Abstract

Welding is a metal joining method widely applied in various industrial fields. The quality of welded joints is strongly influenced by the welding method used. This study aims to compare the effect of electric welding and acetylene welding on tread plate in terms of tensile strength, micro-macro structure, and Non-Destructive Testing (NDT) results. The research employed an experimental approach in the laboratory. Tensile testing was conducted to determine yield point and Yield Stress, while macro and microstructural observations were carried out to analyze metallurgical changes. NDT was performed using Magnetic Particle Testing (MPT) and Liquid Penetrant Testing (LPT) to detect possible defects. The results indicate that electric welding produced better joint quality compared to acetylene welding. Specimens welded with electricity showed yield points ranging from 10,045–15,476 N and Yield Stress between 197.663–304.527 MPa, with fewer defects observed. In contrast, acetylene welding produced more varied results with significant defects such as cracks and large porosity, which reduced joint quality. This research demonstrates that electric welding provides superior tensile strength and joint reliability compared to acetylene welding.
Analisis Penerapan Integrated Tug Barge Sebagai Angkutan Batu Bara Di PT. Bara Jaya Bersama Catur Daminto; Purwanto
Jurnal Penelitian Rumpun Ilmu Teknik Vol. 2 No. 2 (2023): Mei : Jurnal Penelitian Rumpun Ilmu Teknik
Publisher : Lembaga Pengembangan Kinerja Dosen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/juprit.v2i2.1461

Abstract

Coal mining activities cannot be separated from the distribution of mining products. The distribution of coal in Kalimantan is currently still dominated by sea routes. Transportation of coal by sea using ships can maximize transportation because the amount transported is more and is considered to be cheaper and more effective. Integrated Tug Barge (ITB) is a barge propelled by specially configured tugboats. When the tug and barge are connected, they form a unit that functions as a ship. Integrated Tug Barge (ITB) can be an alternative choice compared to conventional ships of the same size. There are various variables that can affect the effectiveness of using ITB as an alternative to coal loading. In this study, three research variables will be analyzed, namely costs, transportation capacity and speed/cycle as independent variables and the potential for implementing ITB as the dependent variable. The purpose of this study was to analyze whether the positive influence individually between the independent variables cost, transport capacity and speed/cycle on the dependent variable, namely the potential for implementing ITB. In this study, the object taken was the employee of PT Bra Jaya Bersama.
Co-Authors - Haryono Abimanto, Dhanan Afip Nur Kholis Agus Andriyanto Agus Selamat Prabowo Catur Daminto Dedy Rusmiyanto Edi Julianto Fina Fariza Haryono - Lilik Budiyanto Lilin Hermawati M. Mava Saputra Al Maskuri Mu'izzaddin Wa'addulloh Muiz Abdullah Mu’izzaddin Wa’addulloh Nazariano Rahman Wahyudi Rafdi Ma’ruf Satria Regius Ovianto Purba Riyoldi Sunu Arsy Pratomo Sutini Virgiawan Toti Zihni Ihkamuddin