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All Journal IPTEK The Journal of Engineering SINTEK JURNAL: Jurnal Ilmiah Teknik Mesin REKAYASA JTRM (Jurnal Teknologi dan Rekayasa Manufaktur) International Journal of Marine Engineering Innovation and Research Buletin Poltanesa Zona Laut : Jurnal Inovasi Sains dan Teknologi Kelautan Jurnal Jalasena
Didik Hardianto
Teknik Perkapalan, Universitas Hang Tuah
Agriculture, Biological Sciences & Forestry Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Physics Social Sciences Transportation

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ANALISA KEKUATAN KONSTRUKSI RAMP DOOR PADA DECK CARGO BARGE DENGAN METODE ELEMEN HINGGA (FINITE ELEMENT METHOD) Angger Setyo Aji; Didik Hardianto
JURNAL JALASENA Vol 4 No 1 (2022): AGUSTUS 2022
Publisher : Fakultas Sains dan Teknologi Universitas Karimun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51742/jalasena.v4i1.558

Abstract

Ramp door is a construction on a ship that serves to access the entry and exit of vehicles or cargo to be transported by a ship. To ensure that the ramp door can accept the load from these vehicles, a strength analysis of the ramp door construction will be carried out using FEM-based structural static analysis software. From the results of software testing, the maximum stress value occurs on the ramp door model 2 of 166.08 MPa and the minimum stress/stress value occurs on the ramp door model 3 of 117.36 MPa. The safety factor values of the three ramp door models analyzed meet the requirements according to the rules of the Indonesian Classification Bureau, namely the safety factor value for the ramp door model 1 is 2.02, the ramp door model 2 is 1.50 and the ramp door model 3 is 2, 13.
Teknis Perancangan Restoran Terapung Sebagai Penunjang Pariwisata di Coastal Area Pulau Karimun Admarch Gery Haryoseno; Bagiyo Suwasono; Ali Munazid; Didik Hardianto
Poltanesa Vol 23 No 2 (2022): Desember 2022
Publisher : P2M Politeknik Pertanian Negeri Samarinda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51967/tanesa.v23i2.1836

Abstract

Potensi wisata yang berada di pulau karimun memiliki beberapa destinasi objek wisata yaitu wisata pantai, air terjun, kolam renang, pendakian gunung jantan dan yang terbaru adalah reklamasi daratan yang dikenal dengan Coastal Area. Restoran Terapung adalah sebuah rumah makan yang berdiri di atas permukaan air yang menyajikan dan mengolah makanan hasil potensi laut. Tujuan dari penelitian ini adalah untuk mendapatkan ukuran utama kapal (Principal Dimension), membuat bentuk dari rencana garis kapal (Lines Plan) yang sesuai dengan perairan Pulau Karimun, Kepulauan Riau dan pembuatan rencana umum (General Arrangement) kapal berdasarkan ukuran utama dan fungsi dari kapal sebagai sebuah restoran terapung. Penelitian ini dilakukan menggunakan data sekunder yang digunakan adalah data pembanding. Hasil dari penelitian ini adalah Ukuran utama yang di dapatkan dari hasil metode kapal pembanding didapatkan dengan rata – rata dan di lanjutkan dengan menghasilkan Gross Tonnage: 1409 m, Length Overall Area (Hull) :74,57 m, Length WL :72,26 m, Length BP: 70,84 m, Breadth Moulded: 16,44 m, Depth Moulded :4,15 m, Design Draft :3,11 m, Dead Weight Tonnage: 2,165 ton.
Identifikasi Kekuatan Butt Joint dan Lap Joint pada Pengelasan Konstruksi Kapal Bagiyo Suwasono; Muhammad Farizal; Nur Yanu Nugroho; Didik Hardianto
Rekayasa Vol 16, No 2: Agustus 2023
Publisher : Universitas Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/rekayasa.v16i2.19914

Abstract

The joining of steel in ship construction was carried out through welding technology. One of the joining processes used two types of welded joints, namely butt and lap joints. This study identified the strength of the test material from ASTM A36 steel plates at welded joints by standardizing the tensile test. Experimental activities using a tensile testing machine and simulation activities using SolidWorks. The average tensile test values for butt and lap joints show yield strengths of 288.89 and 200 N/mm2, final strengths of 419.11 and 280 N/mm2, reduction of cross-sectional areas of 49.33 and 43.33%, strain 7% and 18.67%, modulus of elasticity 60.81 and 15 N/mm2. Tensile test simulations for butt and lap joints showed plastic deformation in the weld face, root, toe, and HAZ area. Experimental and simulated difference values for butt joints range from 941.67 to 1,519.67 N/m2, and lap joints range from 1,030 to 4,694 N/m2. The final results show that SMAW welding with the butt joint type has a higher strength value than the lap joint.
Risk Analysis of Delay in Ship Repair KM Binaiya with Bayesian Network Method Intan Baroroh; Galuh Valent Setiawan; Ali Azhar; Didik Hardianto; Ahmad Basuki Widodo
International Journal of Marine Engineering Innovation and Research Vol 8, No 3 (2023)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v8i3.18494

Abstract

Ship repair is a project that is short in process so that time is an important element in its completion parameters. Delay is something that can happen to a job. A job experiencing delays must have a cause that affects the work. Causes of delay in the case of ship repair are poor time management, less skilled human resources, the addition or development of work. But whatever the obstacles, shipyards are still required to complete the ship repair process in a timely manner. Seeing this problem, this research was conducted to provide input in connection with the strategies used by PT XYZ in overcoming the delay factor in the repair of the KM Binaiya ship. In the research to support this thesis, the Bayesian Networks Method is used to analyze the factors that cause delays in ship repairs. After risk identification using the Bayesian networks method. The highest risk is replete activities as minor categorized, where the caused tank cleaning work related to hazardous waste, which must be cleaned to be safe for hot work with a risk score of 0.108. The second cause is installation of scaffolding for replete work facilities at height with a risk score of 0.054.
Risk Evaluation of Ship Repair Delays with The Failure Modes and Effects Analysis (FMEA) Method Intan Baroroh; Ndaru Gilang Ramadhan; Didik Hardianto; Tri Agung Kristiyono
International Journal of Marine Engineering Innovation and Research Vol 8, No 4 (2023)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v8i4.19328

Abstract

Every ship, that is still actively operating in shipping must pay attention to repair or maintenance in accordance with classification standards. This was needed by management or ship owners to carry out maintenance planning. The shipyards as repair services, there are often obstacles during the repair process that cause the repair time to be longer. This is caused by limited work equipment, delivery of materials that are not in order, and lack of technical equipment. The purpose of research is to evaluate the risk of ship repair delays so there are no failures or delays in ship repair. The method used is the FMEA method (Failure Mode and Effect Analysis) to measure each failure in each activity that affects ship repair. The results showed an assessment score in the form of a Risk Priority Number (RPN) consisting of activities: amount of cutting machines is still limited with a score of 309.83, painting and welding failures at the same time with a score of 267.08, materials that come are remachined to fit the needs with a score of 335.06 and inadequate transportation equipment with a score of 294.16. Improvements made in the form of preparing amount of work tools before the work is carried out, conditioning the order of work according to the schedule and adding backup transportation.
Technical Study of Ship Plate Firing Process Time with Variation of Deformation Values Sinung Widiyanto; Didik Hardianto; Tri Agung Kristiyono; Bagus Kusuma Aditya; Safriudin Rifandi
IPTEK The Journal of Engineering Vol 10, No 1 (2024)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j23378557.v10i1.a18594

Abstract

In the process of shipbuilding production and repair, deformation is sometimes encountered due to several factors, starting from load pressure, pulling, lifting, and welding processes. A fairing process is carried out to overcome the plate deformation, in which the plate is heated and cooled simultaneously. The method used in this research is direct time measurement during the fairing process on test plate specimens with variations in the depth of deformation curvature. The data obtained, processed, and analyzed to obtain an estimate of the fairing processing time the longer the fairing process takes, following the equation Y = 41.285X + 530.94, where X is the deformation angle, and Y is the estimation fairing processing time area per half square meter.
Uji Seakeeping Model Kapal Displacement pada Area Terbuka Andreas, Mario; Poundra, G.A.P.; Munazid , Ali; Hardianto, Didik; Suwasono, Bagiyo
JTRM (Jurnal Teknologi dan Rekayasa Manufaktur) Vol 5 No 2 (2023): Volume: 5 | Nomor: 2 | Oktober 2023
Publisher : Pusat Penelitian, Pengembangan, dan Pemberdayaan Masyarakat (P4M) Politeknik Manufaktur Bandung (Polman Bandung)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.48182/jtrm.v5i2.121

Abstract

Ship Movement is an important factor in shipbuilding. In determining the ship's maneuverability, there are many aspects that must be considered in the design, namely resistance and angle of attack of the waves. In determining the angle of attack of the waves, the test uses the trigonometry principle to determine the angle of attack of the waves. Where the results of the 3 maneuvers of the Heave, Roll and Pitch ships at speeds of 0 knots, 0.389 knots, 0.778 knots, 1.166 knots, 1943 knots, it is known that the displacement model ship can be used in an open area with a set scale.
Heat Transfer Analysis of Sandwich Plate System Application As Insulation Material for Fishing Vessels Hatches by Finite Element Method Syauqi, Syafiq Ahmad; Nugroho, Nur Yanu; Hardianto, Didik; Azhar, Ali
SINTEK JURNAL: Jurnal Ilmiah Teknik Mesin Vol. 18 No. 1 (2024): SINTEK JURNAL
Publisher : Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/sintek.18.1.6-12

Abstract

Fish is a highly perishable food due to its suitability as a substrate for the growth of spoilage microbes, particularly bacteria. One method to maintain fish quality and extend its shelf life is preservation through a cooling system, where the duration of effective storage in the hatch is influenced by the quality of the insulation wall. Previous research modified the hatch insulation wall using a rice husk and white cement composition; however, these materials proved neither effective nor efficient in maintaining cooling temperatures. This study aims to determine the effect of heat transfer in a sandwich plate system on cooling time and temperature. Experiments were conducted using three variations in core layer thickness within a stainless steel-polyurethane-stainless steel configuration. The results indicated that at a temperature of 4°C, the maximum cooling times for each core layer thickness variation were as follows: variation 1 (3-20-3mm) lasted 62.5 hours, variation 2 (3-25-3mm) lasted 64 hours, and variation 3 (3-30-3mm) lasted 65.5 hours. The findings demonstrate that an increase in core layer thickness results in a prolonged maintenance of the cooling temperature within the hatch.
Teknis Perancangan Restoran Terapung Sebagai Penunjang Pariwisata di Coastal Area Pulau Karimun Admarch Gery Haryoseno; Bagiyo Suwasono; Ali Munazid; Didik Hardianto
Poltanesa Vol 23 No 2 (2022): Desember 2022
Publisher : P2M Politeknik Pertanian Negeri Samarinda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51967/tanesa.v23i2.1836

Abstract

Potensi wisata yang berada di pulau karimun memiliki beberapa destinasi objek wisata yaitu wisata pantai, air terjun, kolam renang, pendakian gunung jantan dan yang terbaru adalah reklamasi daratan yang dikenal dengan Coastal Area. Restoran Terapung adalah sebuah rumah makan yang berdiri di atas permukaan air yang menyajikan dan mengolah makanan hasil potensi laut. Tujuan dari penelitian ini adalah untuk mendapatkan ukuran utama kapal (Principal Dimension), membuat bentuk dari rencana garis kapal (Lines Plan) yang sesuai dengan perairan Pulau Karimun, Kepulauan Riau dan pembuatan rencana umum (General Arrangement) kapal berdasarkan ukuran utama dan fungsi dari kapal sebagai sebuah restoran terapung. Penelitian ini dilakukan menggunakan data sekunder yang digunakan adalah data pembanding. Hasil dari penelitian ini adalah Ukuran utama yang di dapatkan dari hasil metode kapal pembanding didapatkan dengan rata – rata dan di lanjutkan dengan menghasilkan Gross Tonnage: 1409 m, Length Overall Area (Hull) :74,57 m, Length WL :72,26 m, Length BP: 70,84 m, Breadth Moulded: 16,44 m, Depth Moulded :4,15 m, Design Draft :3,11 m, Dead Weight Tonnage: 2,165 ton.
Study Of Lavatory Installation Methods On Ship Landing Platforms Musa, Musa; Munazid , Ali; Suwasono , Bagiyo; Hardianto, Didik; Sutiyo, Sutiyo
Zona Laut : Jurnal Inovasi Sains Dan Teknologi Kelautan Volume 6, Number 2, July 2025 Edition
Publisher : Departemen Teknik Kelautan Universitas Hasanuddin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62012/zl.vi.45475

Abstract

Landing Platform Dock (LPD) ships as amphibious warships with complex accommodation systems, including lavatory installations, require effective and efficient installation methods. This study was motivated by the need to compare two lavatory installation methods, namely the conventional method and the modular method, in an effort to increase productivity and reduce the amount of rework in the construction of LPD ships. The research method used is the direct observation method at the national shipyard, with data collection through installation time records, number of man hours, material costs, and number of rework events. Data were analyzed using a quantitative descriptive approach by comparing these variables in each type of lavatory. In this study, 3 types of lavatory with different dimensions and shapes were used. The modular method which requires 10-14 days to complete has proven to be significantly more efficient in terms of implementation time compared to the conventional method with results of 19-25 days according to the type of lavatory. Likewise in the number of man-hours needed, which reached 384-480 JO for the conventional method and 264-456 JO for the modular method in the three types of work. The costs incurred for this production require IDR 67,880,890 - IDR 81,377,090 for the modular method and IDR 71,682,490 - IDR 87,713,090 for the conventional method. Thus, the modular method has proven to be more effective in increasing productivity and reducing the cost of installing a better lavatory.
Co-Authors Admarch Gery Haryoseno Ahmad Basuki Widodo Ali Azhar Ali Munazid Andreas, Mario Angger Setyo Aji Bagiyo Suwasono Bagiyo Suwasono Bagiyo Suwasono, Bagiyo Bagus Kusuma Aditya Galuh Valent Setiawan Intan Baroroh Kristiyono, Tri Agung Muhammad Farizal Musa Musa Ndaru Gilang Ramadhan Nova Risdiyanto Ismail Nugroho, Nur Yanu Poundra, G.A.P. Safriudin Rifandi Sinung Widiyanto Suriansyah - Sutiyo Sutiyo Suwasono , Bagiyo Syauqi, Syafiq Ahmad Tri Agung Kristiyono