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All Journal KAPAL Jurnal Ilmu Pengetahuan dan Teknologi Kelautan Jurnal Teknik ITS IPTEK Journal of Proceedings Series IPTEK The Journal for Technology and Science Jurnal Teknik Sipil Warta Ardhia : Jurnal Perhubungan Udara IJOCE (International Journal of Offshore and Coastal Engineering) Wave: Jurnal Ilmiah Teknologi Maritim JURNAL TEKNIK HIDRAULIK International Journal of Marine Engineering Innovation and Research Sewagati
Eko Budi Djatmiko
Institut Teknologi Sepuluh Nopember, Surabaya
Arts Humanities Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mechanical Engineering Physics Public Health Social Sciences Transportation Other

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ANALISIS RESPON GERAK FLOATING CRANE BARGE UNTUK DECOMMISSIONING STRUKTUR LEPAS PANTAI Nurman Firdaus Firdaus; Eko Budi Djatmiko; Rudi Walujo Prastianto; Muhammad Fajariansyah Ismail
Wave: Jurnal Ilmiah Teknologi Maritim Vol. 15 No. 1 (2021)
Publisher : Badan Riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29122/jurnalwave.v15i1.4893

Abstract

Penerapan floating crane barge memiliki potensi besar untuk operasi pengangkatan struktur dalam mendukung decommissioning anjungan lepas pantai pasca operasi. Respon gerak floating crane barge dalam perairan bergelombang selama operasi pengangkatan struktur di laut menjadi faktor penting dalam menunjang operasional yang aman. Pada penelitian ini, respon gerak dinamis floating crane barge terhadap gelombang dilakukan dengan simulasi eksperimen di laboratorium maneuvering ocean basin. Model uji barge yang dilengkapi dengan struktur crane boom sederhana dibuat dengan perbandingan skala 1:28. Respon gerak model uji dievaluasi dengan kondisi gelombang reguler dan gelombang irreguler. Karakteristik gerak amplitudo dijasikan dalam grafik RAO yang mana hasilnya menunjukkan kesesuaian antara gelombang reguler dan irreguler. Respon gerak terhadap gelombang acak mengalami peningkatan secara signifikan terjadi dari kondisi gelombang Hs = 0.50 m, Tp = 4.00 s ke kondisi gelombang Hs = 1.00 m, Tp = 5.50 s untuk heave sebesar 2.8 kali, untuk roll sebesar 2.5 kali dan untuk pitch sebesar 1.5 kali.
Kajian Pengelolaan Kawasan Mangrove Pesisir Selatan Kabupaten Bangkalan Berdasarkan UU No 1 Tahun 2014 Daniel Mohammad Rosyid; Sujantoko Sujantoko; Haryo Dwito Armono; Eko Budi Djatmiko; Wisnu Wardhana; Rudi Walujo Prastianto; Yeyes Mulyadi; Nani Kurniati; Maulinna Kusumo Wardhani
Sewagati Vol 5 No 3 (2021)
Publisher : Pusat Publikasi ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (762.925 KB) | DOI: 10.12962/j26139960.v5i3.26

Abstract

Implementasi UU No 1 tahun 2014 dan UU No 23 tahun 2014 terlihat dalam pengelolaan kawasan hutan mangrove berada di bawah kewenangan Provinsi Jawa Timur. Namun demikian, masyarakat pesisir selatan Kabupaten Bangkalan dapat memanfaatkan sesuai dengan peraturan dan perundangan yang berlaku. Penerapan Perpres No 80 tahun 2019 dapat menjadi pendorong terbangunnya kawasan wisata di pesisir Kecamatan Modung melalui pemanfaatan sumberdaya alamnya. Pesisir Selatan Kabupaten Bangkalan berupaya membangun desa pesisir dengan zona-zona wisata. Perencanaan pengelolaan kawasan mangrove di pesisir selatan Kabupaten Bangkalan dalam revisi RTRW tahun 2020 ini diharapkan dapat dilakukan kolaborasi antara pemerintah kabupaten dan pemerintah propinsi sebagai bentuk implementasi UU No 1 tahun 2014 dan UU No 23 tahun 2014 dengan konsep pembangunan yang berkelanjutan dan terintegrasi.
Peningkatan Keselamatan Kapal Niaga dengan Sistem Pemuatan Berbasis Komputer Murdjito; Sujantoko; Setyo Nugroho; Eko Budi Djatmiko; Mahmud Mustain; Wisnu Wardhana; Wahyudi; Eka Wahyu Ardi
Sewagati Vol 7 No 3 (2023)
Publisher : Pusat Publikasi ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (6433.005 KB) | DOI: 10.12962/j26139960.v7i3.495

Abstract

Peningkatan kualitas keamanan dan keselamatan pelayaran Kementerian Perhubungan telah mencanangkan zero accident dengan mengeluarkan standar yang terkait dengan teknologi kapal, kelengkapan peralatan keselamatan di kapal, dan sertifikasi awak kapal. Untuk menjamin keselamatan pelayaran, maka kapal harus dinyatakan laik laut jika ingin belayar. Walaupun demikian tingkat kecelakaan kapal di laut masih tinggi. Dalam rangka meningkatkan keselamatan pelayaran untuk mengatasi tingginya angka kecelakaan fatal maka diperlukan sarana pendidikan kepelautan yang memadai. Peningkatan mutu pendidikan formal dan sosialisasi tentang keselamatan pelayaran perlu disosialisasikan lebih luas dan lebih baik. Kecelakaan kapal sering disebabkan oleh tidak dilakukannya penataan muatan yang sistematis dan tidak dilakukannya perhitungan stabilitas secara akurat. Dengan alat perencanaan muatan berbasis komputer, maka perhitungan stabilitas kapal yang akurat dan otomatis dapat digunakan untuk meningkatkan pemahaman dan kesadaran arti pemuatan dan stabilitas kapal pada operasi muat kapal. Kegiatan yang akan dilakukan dalam program ini adalah membuat prototipe materi pelatihan dan pendidikan keselamatan kapal secara sistematis dan terstruktur dengan perangkat lunak yakni iStow. Urgensi peningkatan keselamatan kapal sangat tinggi, mengingat kecelakan kapal sering kali bersifat fatal. Sehingga dapat mengganggu kehidupan sosial dan kegiatan perekonomian. Pemanfaatan teknologi tinggi akan dapat berkontribusi dalam meningkatkan keselamatan pelayaran dan kesejahteraan awak kapal.
Fatigue Life Analysis of FSO Anchor Chain with Corrosion Effect Dewinta Putri Cahyaningtyas; Nur Syahroni; Rudi Walujo Prastianto; Eko Budi Djatmiko; Murdjito Murdjito; Hafizh Muhammad Naufal Shidqi
International Journal of Marine Engineering Innovation and Research Vol 8, No 2 (2023)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v8i2.16942

Abstract

In this study, the authors analyze the fatigue life of the anchor chain used to secure the Gamkonora FSO to the seabed. The objective is to determine the operational lifespan of the anchor chain by considering its fatigue life. The research begins with an analysis of the movement of the Gamkonora FSO under environmental loads in both free-floating and moored conditions to determine the tension in each anchor chain. Next, the anchor chain tension is calculated for various corrosion levels, namely 0%, 5%, 10% and 15%. Subsequently, the tension range and damage ratio values are determined using the T-N curve method based on Palmgren Miner’s failure law, with failure estimation carried out using the rainflow counting method. The numerical modeling results reveal that the largest translational motion behavior of the FSO occurs during heave motion, reaching 1.409 m/m, while the largest rotational motion is observed during roll motion, with a value of 3.463 deg/m when the FSO is fully loaded. The maximum tension recorded in the anchor chain is 1,695.14 kN at heading 90 under 0% corrosion conditions, with a safety factor of 4.53. Furthermore, the cumulative damage value from the T-N curve is obtained, with the largest value recorded as 0.0702. Based on the cumulative damage, the fatigue life of the anchor chain is estimated to be 14.25 years during its operational lifespan.
Design, Construction And Operational Plans Of An Electric Paddle Wheel For A Laminated Bamboo Slats River Cruise Boat Heri Supomo; Eko Budi Djatmiko; Setyo Nugroho; Wikaranosa Scotiandharu Supomo
Kapal: Jurnal Ilmu Pengetahuan dan Teknologi Kelautan Vol 20, No 2 (2023): June
Publisher : Department of Naval Architecture - Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/kapal.v20i2.50503

Abstract

River cruise tourism in Indonesia has a moderately high potential as there are so many rivers in Indonesia that offer beautiful natural and urban views. However, majority of river cruiser boats still use outboard engines, both two-stroke and four-stroke combustion engines. The working system of the outboard engine is to carry out the combustion process of the fuel oil. This combustion process usually has a loud sound, leading to noise pollutants that can harm the environment and make passengers uncomfortable. Burning fossil fuels also causes the residual compounds that increases environmental pollution, especially carbon emissions. In this paper, an analysis will be carried out on the operational costs of a river cruise ship with electric paddle wheel propulsion. With a boat design with an LOA size of 5.4 m, breadth of 1.4 m, height of 0.8 m, draft of 0.3 m, and CB of 0.68, the paddle wheel diameter is 70 cm, blade width of 30cm, and 6 blades. The motor used to drive the paddle wheel has a power of 672.69 watts, with a battery capacity of 100 Ah. According to operational planning, benefits will be obtained, including zero carbon emissions, no noise and operational benefits can be up to 90% greater when compared to the out-board engine drive.
Effect of Mooring System Configuration to Flexible Riser Tension Eko Budi Djatmiko; Murdjito; Kunthi U.D. Prabawani
International Journal of Marine Engineering Innovation and Research Vol. 8 No. 4 (2023)
Publisher : Department of Marine Engineering, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v8i4.5104

Abstract

Floating Storage and Offloading is a floating structure that functions as hydrocarbon temporary storage from wells before being distributed to tankers and carried to production facilities on shore. The important components used to support FSO operations are mooring systems and risers. The mooring system is used to limit FSO movement due to environmental loads. Riser was carried out hydrocarbons from the well to FSO This study aims to analyze the effect of mooring system configurations on flexible riser tension. These variations consist of spread mooring, conventional buoy mooring (4 buoy), and two other variations combine spread mooring and conventional buoy mooring. This analysis shows that the mooring system with 4 buoys has the largest flexible riser tension that is 248 kN, while spread mooring has the smallest flexible riser tension, 55 kN. FSO with conventional buoy mooring configuration has the largest offset and spread mooring configuration has the smallest offset. The lazy wave type has smaller riser tension than the free hanging type, which is 4 – 58%.
Reliability Analysis on the Effect of Subsea Buoy to the Tension of Spread Mooring System Madea Eka Silfiani; Rudi Walujo Prastianto; Murdjito Prastianto; Daniel Mohammad Rosyid; Eko Budi Djatmiko
International Journal of Marine Engineering Innovation and Research Vol. 8 No. 4 (2023)
Publisher : Department of Marine Engineering, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v8i4.5107

Abstract

A lot of research has been carried out regarding variations in mooring systems, one of which is the addition of buoys to the mooring system. In analyzing variations in mooring system designs, what needs to be considered is the reliability of the mooring lines. Therefore, in this research will analyze reliability on the effect of subsea buoy to the tension of mooring line with a variation position of subsea buoy. The variations on the position of one subsea buoy is arranged at the distance of the anchor 605 m, 577.5 m, 550 m, 522.5 and two subsea buoys at the distance from the anchor 605 m and 467.5 m. The analysis was performed for stand alone and offloading conditions with wave directions of 0 °, 45 °, 90 °, 135 °, 180 °. In this study to find the reliability of mooring lines, the author uses the Mean Value First Order Second Moment (MVFOSM) method. The results from this study, the probability of failure in the offloading condition without subsea buoy is 4.897E-17 and with subsea buoy (522.5 m) is 4.018E-17. Probability of failure in the stand alone condition without subsea buoy is 2.763E-16 and with subsea buoy (522.5 m) is 1.881E-16. From the probability of failure, the reliability of mooring lines in the offloading condition and stand alone condition without subsea buoy and with subsea buoy (522.5 m) is 1.00. The reliability calculation determined by DNV-OS E301, the results obtained meet the specified reliability criteria.
Fatigue Life Analysis of FSO Anchor Chain with Corrosion Effect Dewinta Putri Cahyaningtyas; Nur Syahroni; Rudi Walujo Prastianto; Eko Budi Djatmiko; Murdjito Djatmiko; Hafizh Muhammad Naufal Shidqi
International Journal of Marine Engineering Innovation and Research Vol. 8 No. 2 (2023)
Publisher : Department of Marine Engineering, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v8i2.5460

Abstract

In this study, the authors analyze the fatigue life of the anchor chain used to secure the Gamkonora FSO to the seabed. The objective is to determine the operational lifespan of the anchor chain by considering its fatigue life. The research begins with an analysis of the movement of the Gamkonora FSO under environmental loads in both free-floating and moored conditions to determine the tension in each anchor chain. Next, the anchor chain tension is calculated for various corrosion levels, namely 0%, 5%, 10% and 15%. Subsequently, the tension range and damage ratio values are determined using the T-N curve method based on Palmgren Miner’s failure law, with failure estimation carried out using the rainflow counting method. The numerical modeling results reveal that the largest translational motion behavior of the FSO occurs during heave motion, reaching 1.409 m/m, while the largest rotational motion is observed during roll motion, with a value of 3.463 deg/m when the FSO is fully loaded. The maximum tension recorded in the anchor chain is 1,695.14 kN at heading 90° under 0% corrosion conditions, with a safety factor of 4.53. Furthermore, the cumulative damage value from the T-N curve is obtained, with the largest value recorded as 0.0702. Based on the cumulative damage, the fatigue life of the anchor chain is estimated to be 14.25 years during its operational lifespan.
Digital Education on Small Island: Maratua Island, Indonesia Muhammad Badrus Zaman; Setyo Nugroho; Murdjito; Eko Budi Djatmiko; Wolfgang Busse
International Journal of Marine Engineering Innovation and Research Vol. 2 No. 2 (2018)
Publisher : Department of Marine Engineering, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v2i2.6109

Abstract

Indonesia has thousand islands to be developed. The total number of islands is 17,508. The potential that can be developed on a small island are environment, energy, transportation, education, information, and so on. In this study, focus is development of Maratua island, located in the district of Berau in East Kalimantan Indonesia. The potential of the island is development of marine tourism. In this case, Sustainable Island Development initiatives (SIDI) implemented to address the above challenges through multidisciplinary research activities. This research is starting from the transport sector, health, education, energy and implementation of information technology. In this context, the development of digital education is very important. This research provides solutions to the educational development of practical and suitable for the Maratua Island. This research develops the role of information and communication technology for teaching and learning activities island communities, examines the role of technology as a supplement teaching and learning process. In addition, this research also aims to design a physical architecture and digital education system that can be implemented in small islands in Indonesia, designing a learning method to support the teaching and learning process, and educating stakeholders about the concept of digital education.
Information Connectivity as A Primary Instrument to Enhance Transport Connectivity Setyo Nugroho; Muhammad Badrus Zaman; Murdjito; Eko Budi Djatmiko; Wolfgang Busse
International Journal of Marine Engineering Innovation and Research Vol. 2 No. 2 (2018)
Publisher : Department of Marine Engineering, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v2i2.6110

Abstract

Remotely located islands posses their own unique beauties and their common challenges. A case study on Maratua to enhance the quality of life is perceived to be achieved through the enhancement of the transport connectivity. The physical connectivity is manifested in the form of transport connectivity, entails the availability and the ease of obtaining a transport service to transfer goods and people. Deeper efforts to understand the mechanism of obtaining a transport service entails a primary actor directing both the ship and cargoes or passengers. This actor is the information connectivity. The paper elaborates promising efforts towards managing the information connectivity as a key for enhancing the transport service.
Co-Authors Abdul Ghofur Abi Latiful Hakim Aditya Hidayatullah Al Amin, Muhammad Zakaria Alit Winiscoyo Angga S. Pambudi Arda Arda Ari Rizki Rivaldo Asmajuna, Helmi Arif Aulia Siti Aisjah Baharuddin Ali Billy Teguh kurniawan Cendrawani Cendrawani Dewinta Putri Cahyaningtyas Eka Wahyu Ardi Erdina Arianti Erwandi Erwandi Hafizh Muhammad Naufal Shidqi Haryo Dwito Armono Helmi Arif Asmajuna Heri Supomo Ignasius Krisna Armanda Jusuf Sutomo Khoiron Syamdatu Perdana Kunthi U.D. Prabawani Kurniati, Nani Madea Eka Silfiani Mahmud Mustain Mas Murtedjo Maulinna Kusumo Wardhani, Maulinna Kusumo Mirba H. Dwi Sa'dyah Mochamad Hanif Rafi’i Mochammad Afif Zahiru Fajar Muhamad Fadkhurrohman Aziz Muhammad Badrus Zaman Muhammad Badrus Zaman Muhammad Fajariansyah Ismail Murdjito Murdjito Murdjito Djatmiko Murdjito Murdjito Murdjito Prastianto Norman Mahdar Sabana Nur Kholis Nur Syahroni Nurman Firdaus Firdaus Octaviani, Maulidya Permana, Rizki Dian Pravitasari, Inneke Yulistanty Rachmadiarto, Fajar Rafliansyah Azhar Putera Revy Maghriza Riza Aris Hikmadiyar Rizki Haryono A. Rizky Arrico Farhan Rochani, Imam Rosyid, Daniel Mohammad Rudi Walujo Prastianto Sayuti Syamsuar Setyo Nugroho Setyo Nugroho Setyo Nugroho Setyo Nugroho Shade Rahmawati Subchan Subchan Sujantoko Sujantoko Supomo, Wikaranosa Wahyu Suryo Putro Wahyudi Wikaranosa Scotiandharu Supomo Wisnu Wardhana Wisnu Wardhana Wisnu Wardhana Wolfgang Busse Wolfgang Busse Wolfgang Busse Wolfgang Busse Yeyes Mulyadi Yunan Setiawan Suwandono