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All Journal BULETIN OSEANOGRAFI MARINA KAPAL Jurnal Ilmu Pengetahuan dan Teknologi Kelautan Jurnal Ilmiah Desain & Konstruksi Jurnal Teknik ITS Journal of Marine Research IPTEK Journal of Proceedings Series IPTEK The Journal for Technology and Science REKAYASA Jurnal Teknik Sipil Journal of Geoscience, Engineering, Environment, and Technology IJOCE (International Journal of Offshore and Coastal Engineering) JURNAL PENGABDIAN KEPADA MASYARAKAT Jurnal Kelautan Nasional Wave: Jurnal Ilmiah Teknologi Maritim JURNAL TEKNIK HIDRAULIK Dinasti International Journal of Economics, Finance & Accounting (DIJEFA) COJ (Coastal and Ocean Journal) Jurnal Locus Penelitian dan Pengabdian Makara Journal of Technology Sewagati Geosfera Indonesia
Haryo Dwito Armono
Departemen Teknik Kelautan, Institut Teknologi Sepuluh Nopember, Kampus ITS, Keputih, Sukolilo, Surabaya 60111
Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Environmental Science Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Public Health Social Sciences Transportation Other

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The Design of Mooring Dolphin Layout and Mooring Line Tension Analysis Sholihin Sholihin; Yoffan Ramadhan; Haryo Dwito Armono
International Journal of Offshore and Coastal Engineering (IJOCE) Vol 1, No 1 (2017)
Publisher : DRPM (Direktorat Riset dan Pengabdian kepada Masyarakat) ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1093.815 KB) | DOI: 10.12962/j2580-0914.v1i1.2871

Abstract

Some marine industries choose to set up their activities in the coastal area northern part of Java Island, Indonesia, by considering the calmness of the Java Sea environment. A special terminal for liquid bulk cargo to transport fuel oil is being planned for construction in Sedayu Lawas village, Lamongan district, East Java Province. The ship carrying cargo oil require a pier and jetty in sufficient depth for loading and unloading. The jetty need to be enhanced to support more equipment for ship to port, which include breasting dolphin, mooring dolphin, trestle, and cause­way. In this respect a study is carried out to review the stress analysis of the mooring lines (ropes) attached to jetty for various mooring dolphin layout and arrangements. The metocean data such as wind and tides in the areas were processed and analyzed. The layout of the ship and mooring dolphin rope angle were designed in accordance with OCIMF code. The stress analysis of mooring rope for various layout mooring dolphin has been analyzed to determine whether the design layout is safe during operation. The rope stress were analyzed using time domain dynamic analysis for 10,800 seconds. The safety of ship during loading for various rope condition were presented. It is suggested that all ropes should be attached to mooring dolphin for ship and port safety.
Wave Transmission Analysis on Hexagonal Shape Floating Breakwater Sujantoko Sujantoko; Haryo Dwito Armono; Wisnu Wardhana; Dedi Kurniawan
International Journal of Offshore and Coastal Engineering (IJOCE) Vol 5, No 2 (2021)
Publisher : DRPM (Direktorat Riset dan Pengabdian kepada Masyarakat) ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j2580-0914.v4i4.10934

Abstract

Coastal areas have many benefits for activities, such as port construction, fishing activities, recreation areas, resource utilization, alternative energy-producing places, etc. However, many factors limit this use due to water wave activity, such as storm surges and the potential for tsunamis. These factors also cause abrasion and coastal erosion that can damage the coastal environment. To overcome this problem, it can be done by building a coastal protective structure, one of which is a floating breakwater. In this study, analysis of wave transmission on a hexagonal floating breakwater will be carried out to determine the effectiveness of its performance. The wave transmission test on the floating breakwater was carried out with variations of irregular waves (Jonswap spectrum) and mooring angles. The position of the wave probe is set at 100 cm and 220 cm behind the structure. The largest transmission coefficient occurs at a mooring angle of 30o in both scenario 1 and scenario 2. The smallest transmission coefficient value is at an angle of 60o in both scenarios of wave probe placement. The plotting results show that the transmission coefficient is directly proportional to the period and height of the incident wave and vice versa the transmission coefficient is inversely proportional to the steepness of the wave
PEMODELAN TINGGI GELOMBANG UNTUK KAJIAN ENERGI GELOMBANG LAUT DI PERAIRAN BARAT PROVINSI LAMPUNG Ismail Ali Hajar Aswad Ali; Haryo Dwito Armono; Shade Rahmawati; Asfarur Ridlwan; Rizki Mendung Ariefianto
Wave: Jurnal Ilmiah Teknologi Maritim Vol. 15 No. 2 (2021)
Publisher : Badan Riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29122/jurnalwave.v15i2.4958

Abstract

Perairan barat Provinsi Lampung merupakan salah satu lokasi yang diperkirakan memiliki potensi energi gelombang yang cukup besar. Namun, minimnya informasi tentang titik potensial energi gelombang laut yang lebih rinci membuat kawasan ini belum dapat dieksplorasi dengan baik. Penelitian ini bertujuan untuk mendapatkan tinggi gelombang signifikan (Hs) yang merupakan salah satu variabel utama dalam menentukan energi gelombang laut di perairan barat Provinsi Lampung. Studi ini dilakukan melalui pemodelan numerik menggunakan model SWAN pada software Delft3D-WAVE dengan input model gelombang yang bersumber dari data ECMWF-Era 5 di laut lepas. Hasil pemodelan numerik menunjukkan gelombang signifikan terbesar terjadi pada musim barat dengan nilai 1,25-2,975 m. Sedangkan tinggi gelombang signifikan terkecil terjadi pada musim timur dengan nilai 0,941-2,079 m. Verifikasi hasil tersebut terhadap data AVISO menghasilkan nilai MAPE sebesar 16,355%, koefisien korelasi sebesar 0,8691, RMSE berkisar 0,277 m yang menunjukkan validasi yang baik dan memuaskan.
KOMPARASI METODE DAYA DUKUNG AXIAL PADA TIANG PANCANG TUNGGAL (STUDI KASUS JETTY BARGE LOADING CONVEYOR, MEULABOH) Mudzakkir Maulana Rachman; Haryo Dwito Armono; Kriyo Sambodho
Jurnal Kelautan Nasional Vol 8, No 2 (2013): AGUSTUS
Publisher : Pusat Riset Kelautan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (570.962 KB) | DOI: 10.15578/jkn.v8i2.6225

Abstract

Pondasi tiang pancang merupakan salah satu faktor penting dalam struktur bangunan pantai, salah satunya adalah dermaga. Sebelum melaksanakan tahap konstruksi, perlu diketahui daya dukung tiang pancang axial yang merupakan besaran beban yang akan diterima. Studi ini dilakukan dengan menghitung perbedaan kapasitas daya dukung tiang pancang dengan diameter 600 mm yang digunakan pada Proyek Jetty Barge Loading Conveyor di Meulaboh dengan memperbandingan metode  persamaan Meyerhof (1956) dan regulasi yang tertuang dalam The Overseas Coastal Area Development Institute Of Japan, OCDI (2002). Hasil perbandingan ke dua metode tersebut diperoleh daya dukung pondasi tiang pancang dengan menggunakan Metode Meyerhof yang menghasilkan daya dukung seberat  139,17 ton dan Metode OCDI menghasilkan daya dukung seberat 125,55 ton. Hasil  studi ini merekomendasikan penggunaan persamaan dari Metode OCDI (2002) dikarenakan daya dukung tiang pancang yang digunakan dihitung berdasar kondisi  kritis  dan berada  di lokasi  yang rawan.
UJI MODEL FISIK STABILITAS UNIT LAPIS LINDUNG PEMECAH GELOMBANG PELABUHAN SANUR Oki Setyandito; Haryo Dwito Armono; Nur Yuwono
Jurnal Ilmiah Desain & Konstruksi Vol 20, No 2 (2021)
Publisher : Universitas Gunadarma

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35760/dk.2021.v20i2.5073

Abstract

Analisis stabilitas suatu struktur pemecah gelombang sebaiknya tidak hanya berdasarkan rumus-rumus empiris atau model matematik semata. Meskipun perkembangan teknologi informasi dan komputasi telah sedemikian berkembang, formula empiris dan metode numerik dalam pemodelan matematik belum mampu menunjukkan secara nyata proses fisik dan mekanisme keruntuhan unit lapis lindung pemecah gelombang. Proses gelombang pecah dan interaksinya dengan unit lapis lindung juga tidak bisa terlihat lengkap dalam suatu model matematik. Untuk itu, uji model fisik diperlukan untuk memastikan bahwa unit lapis lindung struktur pemecah gelombang yang akan dibangun memiliki stabilitas dan memberikan kinerja yang cukup baik. Makalah ini menjelaskan proses persiapan dan pengujian yang dilakukan dalam mengkaji stabilitas unit lapis lindung pemecah gelombang pada pelabuhan Sanur. Uji model fisik dilaksanakan di saluran gelombang yang tersedia di Balai Teknologi Infrastruktur Pelabuhan dan Dinamika Pantai (BTIPDP), Yogyakarta. Berdasarkan teori kesebangunan Froude, telah dilakukan uji model pemecah gelombang 2 dimensi untuk mengkaji stabilitas unit lapis lindung utama. Model pemecah gelombang diuji dengan gelombang acak yang dibangkitkan mesin pembangkit gelombang buatan HR Wallingford (Inggris) yang baru saja dipasang di saluran uji 2 dimensi BTIPDP tahun 2019 lalu. Hasil uji model fisik telah digunakan untuk merancang pemecah gelombang di pelabuhan Sanur, Denpasar, Bali agar dapat diketahui kerusakan struktur pada berbagai tinggi gelombang. Dari hasil pengujian ini dapat ditetapkan ukuran berat lapis lindung / armour unit yg masih diijinkan rusak 0,5 % pada tinggi gelombang rencana dengan kala ulang 100 tahun. 
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. 
Analisis Stabilitas Artificial Reefs Tipe Hexagonal Muhammad Rifqi Hanif; Haryo Dwito Armono
Rekayasa Vol 15, No 2: Agustus 2022
Publisher : Universitas Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/rekayasa.v15i2.15246

Abstract

In solving the problem of abrasion and also protecting marine ecosystems, it is necessary to come up with an idea, namely a wave energy retaining structure that is also capable of being a habitat for marine biota. Therefore, in this study, artificial coral reefs were tested which are considered capable to solve these problems, plus those which at the same time rehabilitate damaged coral reef ecosystems. The artificial reefs model in this test is a hexagonal type with one layer arrangement. To get the success value (KD) of artificial reefs, it is seen from the percentage of damage caused by the influence of height and wave period. Then the KD value was calculated using the Hudson formula so that it was found that the hexagonal type artificial reefs had a KD value = 1.2.
Pengaruh Tinggi Puncak Struktur Hexagonal Artificial Reef Terhadap Kemampuan Redamanan Gelombang Muhammad Baharudin Fahmi; Haryo Dwito Armono; Muhammad Zikra; Harish Wirayuhanto
Rekayasa Vol 15, No 2: Agustus 2022
Publisher : Universitas Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/rekayasa.v15i2.14848

Abstract

Generally, the purpose of artificial reefs is to rebuild naturally occurring coral reefs that have been destroyed. Without sacrificing the attractiveness of the protected beach, these manmade reefs functioned as new habitats for marine life and protected coasts by reducing wave energy. on the other side man-made artificial reefs can perform as submerged breakwaters, their ability to dampen incoming waves must be investigated. In this paper, the researchers present a new shape in the form of a hexagonal artificial reef. The wave attenuation performance index is calculated using the wave attenuation performance rating. The research focuses on the effect of structural height (h/d) on transmission wave value using a physical testing method on a scale of 1:10 at the wave flume of the Department of Marine Engineering, Sepuluh Nopember Institute of Technology, Surabaya. The test results indicate that the smallest transmission coefficient (KT) was produced on artificial reefs Configuration A-3 with the greatest submerged depth (h/d=0.75). The parameter results indicate that the greater the wave steepness (H/gT2) and the significantly larger the immersion depth (h/d), the better the wave reduction.
The Stability Characteristics of Sandbag Submerged Breakwater Fatnanta, Ferry; Pratikto, Widi Agoes; Armono, Haryo Dwito; Citrosiswoyo, Wahyudi
Makara Journal of Technology Vol. 14, No. 2
Publisher : UI Scholars Hub

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The Stability Characteristics of Sandbag Submerged Breakwater. Breakwater is one of coastal structures to overcome problems of abrasion. Due to difficulties in obtaining rock material at the coastal area. The using of sandbags as a breakwater provides advantages in utilizing local materials. A Sandbag has a smooth surface, so the internal shear forces are relatively small. According to these phenomena, the research for parameters that are expected to affect the stability of the sand bags. These parameters are a slope, shape and formation of sand bags. This experimental research conducted in two dimensional physical model and took place on the flume tank of Ocean Engineering Department, Faculty of Marine Technology, ITS. Scaled model 1 : 10. The bag was made in shapes, B1 and B2. Sand bags were prepared with the slope 1 : 1.5 and 1 : 2,0, width of top was 60 cm. The waves were regular waves, period of 1.5 seconds. The wave height was adjusted with the level of stability sand bags. It showed that the response of the sandbag was influenced by interlocking between sandbags. As a result, the stability depended on the change of wave forces, as a consequence of the change of slope and cross areas due to sandbags shape and formation type.
Micro Wave Energy Farming on Slender Pile Structure Faliha Husna; Shade Rahmawati; Haryo Dwito Armono
International Journal of Offshore and Coastal Engineering (IJOCE) Vol 6, No 2 (2022)
Publisher : Pusat Publikasi Ilmiah Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25800914.v6i2.14770

Abstract

The development of renewable energy technology has mostly beenfocused on macro-sized farming models. Recent studies have explored the benefits of micro wave energy to support offshore sensor networks. This paper discusses the viability of micro ocean energy farming of wave energy on slender pile structure through piezoelectric converters. Case study was obtained using Tuban environmental data from the year 2004-2009. Significant wave height and period were used to generate wave forces on slender pile and converted to electrical energy using simple piezoelectric converter equations. The resulting wave force on a 0.03m thick piezoelectric plate generates voltage of 0.6 Volt.
Co-Authors Adryani, Ayu Agoes Pratikto Agustifa, Filda Nurria Akbar Fitrah Dermawan Amalia, Aniendhita Rizki Ammara Tandhiarchita Arief Suroso Asfarur Ridlwan Daniel M. Rosyid Daniel M. Rosyid Danny Indra Setyawan Dedi Kurniawan Dinar Catur istiyanto Dinar Catur Istiyanto Dinda Amalia Rahmawati Dwi Budi Wiyanto Eko Budi Djatmiko Eko Yusroni Faddillah Prahmadana Rudyani Faliha Husna Farid Kamal Muzaki Fendi Hidayat Ferry Fatnanta Hanah Khoirunnisa Hasan Ikhwani Hasan Ikhwani Hasan Ikhwani Ismail Ali Hajar Aswad Ali Juventus Welly Ginting Juventus Welly Radianta Ginting Khusnul Setia Wardani Kriyo Sambodho Kurniati, Nani Mahmud Mustain Manurung, Adelbert Mardi Wibowo Maulinna Kusumo Wardhani Maulinna Kusumo Wardhani, Maulinna Kusumo Mudzakkir Maulana Rachman Muhamad Eriq Ashari Muhammad Baharudin Fahmi Muhammad Iqbal Muhammad Rifqi Hanif Muhammad Zikra Muhammad Zikro Mukhtasor Mukhtasor Murdjito Murdjito Nani Kurniati Nur Chasanah Nur Yuwono Nuzula, Nike Ika Oki Setyandito Pangestu Ari Wicaksono Putra, Mochammad Sharif Rezanta Rachmat Hidayah Reni Wijayanti Reno Arief Rachman Reno Arief Rachman Reno Arief Rachman Ridlwan, Asfafur Ridlwan, Asfarur Rizki Haryono A. Rizki Mendung Ariefianto Rosyid, Daniel Mohammad Rudi Walujo Prastianto Rudi Waluyo Prastianto Rudi Waluyo Prastianto Sambodho, Kriyo Shade Rahmawati Sholihin Sholihin Sholihin Sholihin Sholihin Sujantoko Sujantoko Sujantoko Sujantoko Taufik , Tatang Akhmad Taufik, Tatang A. Taufiqur Rachman Try Febrianto Tuswan Tuswan Wahyu Suryo Putro Wahyudi Wahyudi Citrosiswoyo Wahyudi Citrosiswoyo Wahyudi Citrosiswoyo Wahyudi Citrosiswoyo Wahyudi Wahyudi Wahyudi Wahyudi Wahyudi, Wahyudi Widi Agoes Pratikto Widi Pratikto Widi Pratikto, Widi Wirayuhanto, Harish Wisnu Wardhana Wisnu Wardhana Wisnu Wardhana Yeyes Mulyadi Yeyes Mulyadi Yoffan Ramadhan Zainul Hidayah Zikra, Muhammad