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All Journal Jurnal Teknik ITS IJOCE (International Journal of Offshore and Coastal Engineering) JURNAL PENGABDIAN KEPADA MASYARAKAT
Yeyes Mulyadi
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Agriculture, Biological Sciences & Forestry Engineering Law, Crime, Criminology & Criminal Justice Library & Information Science Social Sciences Other

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Penjadwalan Berdasarkan Analisis Faktor-Faktor Penyebab Keterlambatan Proyek Reparasi Kapal: Studi Kasus MV. Blossom Laura Karennina Padaga; Imam Rochani; Yeyes Mulyadi
Jurnal Teknik ITS Vol 7, No 1 (2018)
Publisher : Direktorat Riset dan Pengabdian Masyarakat (DRPM), ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (513.132 KB) | DOI: 10.12962/j23373539.v7i1.29075

Abstract

Reparasi kapal merupakan sebuah proyek yang singkat dalam prosesnya sehingga waktu merupakan elemen kritis sebagai parameter penyelesaian. Keterlambatan waktu merupakan suatu peristiwa yang dapat terjadi pada setiap proyek. Suatu proyek cenderung mengalami keterlambatan apabila buruknya manajemen proyek dan juga kesalahan-kesalahan yang disebabkan oleh sumber daya manusia didalamnya. Tugas akhir ini menganalisa faktor penyebab keterlambatan pada proyek reparasi kapal MV. Blossom  dengan menggunakan metode Fault Tree Analysis (FTA) serta membuat rencana baru penjadwalan proyek agar dapat dijadikan sebagai acuan supaya proyek dapat selesai sesuai dengan jangka waktu yang telah ditentukan dengan menggunakan Critical Path Method (CPM). Dari hasil analisa metode FTA didapatkan tiga peluang basic event  penyebab utama keterlambatan proyek sebesar 0.33196 untuk peralatan kerja terbatas, 0.22502 untuk peralatan jarang dirawat, dan 0.12393 untuk jumlah tenaga kerja kurang. Untuk hasil penjadwalan ulang dengan CPM didapatkan bahwa proyek dapat selesai dalam waktu 41 hari yang semula berdurasi 101 hari.  
Empowering Coastal Communities: Training on Making Floating Nets Mahmud Mustain; Wahyudi Wahyudi; Haryo Dwi Armono; Muhammad Zikro; Yeyes Mulyadi
JURNAL PENGABDIAN KEPADA MASYARAKAT Vol 11, No 2 (2021): Desember 2021
Publisher : LPPM UNINUS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30999/jpkm.v11i2.1401

Abstract

Based on the results of the study program conducted by the Kangean Island Coastal Community with the theme: "Maritime Management Towards a Prosperous Fisherman Community" on Saturday, February 6, 2021, real follow-up is needed. Of the many problems that emerged from the study, the problem raised in this service was the lack of empowerment of coastal communities, resulting in a lot of neglected/neglected marine potential. Such as the potential of sea grapes, seaweed, crab cultivation, grouper, and others. The solution to this problem that will be given is to carry out training to coastal communities to improve the quality of Human Resources (HR) in terms of optimizing the potential that is still neglected. The training packages that have been delivered are; Making Floating Cages for Fish Cultivation in the Sea (Crab, Grouper, Tuna, etc.). The target that has been achieved is the courage of the training participants to carry out a realization trial in order to implement the results of the training. One training package, God willing, has been given in the form of a face-to-face online and conference where participants are gathered in one room. This is because there is still the shackles of the Covid-19 Pandemic. The training syllabus includes; Material Preparation, Set-up, and Measurement, Construction of the Main Structure, Installation of the Upper Frame Structure on the Floater/Floater, Road Installation on the Upper Frame Structure, Launching of the Floating Net Cage (KJA) to the Sea, Anchoring, Installation of Nets, and Finishing to be ready for seed anchorage. The implementation of the training has been during the working day. The training was also followed online throughout the East Java region. The practice of making charts or prototypes for marine fish farming and charts for floating cages for Crab and Grouper cultivation have been made by a group of fishermen in Bangkalan Regency. 
Dynamic Lateral Stability Analysis On Pipeline Under Operating Conditions Soni Fachryan Akbar; Yeyes Mulyadi; Nur Syahroni
International Journal of Offshore and Coastal Engineering Vol. 9 No. 2 (2025)
Publisher : Department of Ocean Engineering

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j225800914.v9i2.8926

Abstract

The stability analysis of underwater pipelines refers to DNVGL RP F109 [3] (On-bottom Stability Design of Submarine Pipelines) and DNVGL RP F114 [2] (Pipe Soil Interaction) from 2017. The selection of analysis methods depends on the required level of detail in the design analysis. Dynamic analysis introduces more complexity in terms of numerical calculations and field conditions. It involves simulating the pipe's response to hydrodynamic loads, including random waves, steady currents, and soil resistance in the time domain to replicate extreme conditions realistically. The study's outcomes demonstrate that hydrodynamic forces analyzed through numerical methods in CFD software can be compared to analytical approaches outlined in DNV GL F109 and F114 with an error margin of less than 10%. The Maximum Lateral Displacement is measured at 86.49 mm, falling within the allowable displacement range of 0.5 – 10 times the pipe's outer diameter, as specified in DNV GL F109 & DNVGL F114 guidelines. The Von Mises Stress along the pipeline reaches 266.18 MPa, satisfying the 90% SMYS criteria stipulated in ASME B31.8 [2]
Co-Authors Haryo Dwito Armono Imam Rochani Laura Karennina Padaga Mahmud Mustain Muhammad Zikro Nur Syahroni Soni Fachryan Akbar Wahyudi Wahyudi