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Murdjito Murdjito
Department Of Ocean Engineering Institut Teknologi Sepuluh Nopember
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Reliability Analysis on the Effect of Subsea Buoy to the Tension of Spread Mooring System Madea Eka Silfiani; Rudi W. Prastianto; Murdjito Murdjito; Daniel M. Rosyid; Eko B. Dtjamiko
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.v8i4.19588

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.
Optimalisasi Potensi Eco-Wisata Susur Sungai Kejawan Putih Tambak Kecamatan Mulyorejo Surabaya Timur Frestiqauli, Santi; Sujantoko, Sujantoko; Murdjito, Murdjito; Djatmiko , Eko Budi; Mustain, Mahmud; Dhanistha, Wimala Lalitya; Silvianita, Silvianita; Rahmawati, Shade
Sewagati Vol 9 No 1 (2025)
Publisher : Pusat Publikasi ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j26139960.v9i1.2436

Abstract

Eco-wisata Susur Sungai Kejawan Putih Tambak terletak di kecamatan Mulyorejo, Surabaya Timur. Merupakan lokasi wisata alam yang menyediakan pengalaman menyusui sungai menggunakan sampan/perahu nelayan dengan menyugguhkan pemandangan mangrove hingga pemandangan jembatan Suramadu. Diresmikan pada Kamis, 27 Juli 2023 oleh walikota Surabaya Eri Cahyadi. Wisata susur sungai di kawasan Kejawan Putih Tambak menjadi salah satu pilihan wisata air di Kota Surabaya. Selain sebagai sarana wisata, tempat itu juga untuk menunjang perekonomian masyarakat, khususnya bagi para nelayan di Kejawan Putih Tambak. Menurut walikota Surabaya ketika terdapat susur sungai, secara otomatis sepanjang sungai itu harus terjaga kebersihan dan keindahannya. Namun, hingga pada saat ini (2025) wisata susur sungai masih sepi peminat. Hal ini bisa disebabkan oleh beberapa faktor, terutama pada infrastruktur penunjang. Oleh karena itu, dengan adanya pengabdian masyarakat ITS, optimalisasi potensi wisata susur sungai Kejawan Putih Tambak dilaksanakan untuk mengatasi keterbatasan infrastruktur yaitu dengan melakukan pendampingan desain pengembangan dermaga baru dan menghasilkan peta wisata susur sungai. Program ini sebagai wujud keberlangsungan komunitas yang berdampak pada masyarakat, lingkungan darat dan perairan
Co-Authors A.A. Ketut Agung Cahyawan W Abdul Azhim Abdul Ghofur Abi Latiful Hakim Arda Arda Arif Windiargo Asmajuna, Helmi Arif Baharuddin Ali Basuki Rachmad Busse, Wolfgang Daniel M. Rosyid Dewinta Putri Cahyaningtyas Dhanistha, Wimala Lalitya Djatmiko , Eko Budi Djatmiko, Eko Budi Dwi Hariyanti Edit Prihantika Eka Wahyu Ardi Eko B. Dtjamiko Eko Budi Djatmiko Eko Budi Djatmiko Erdina Arianti Frestiqauli, Santi Hafizh Muhammad Naufal Shidqi Handayanu Handayanu Haryo Dwito Armono Hasan Iqbal Nur Helmi Arif Asmajuna Kunthi U.D. Prabawani Kurniati, Nani Madea Eka Silfiani Mahmud Mustain Margie Wiendy Christianingrum Mirba H. Dwi Sa'dyah Mochamad Hanif Rafi’i Mochammad Afif Zahiru Fajar Muhamad Fadkhurrohman Aziz Muhammad Badrus Zaman Muhammad Nabil Ghiffary Noviyanti, Irma Nugroho, Setyo Nur Syahroni Pravitasari, Inneke Yulistanty Raditya D. Riyanto Rafliansyah Azhar Putera Resy Agatya Revy Maghriza Ridha Rokhani, Ridha Rizky Arrico Farhan Rosyid, Daniel Mohammad Rudi W. Prastianto Rudi Walujo Prastianto Rudy W. Prastianto Sambodho, Kriyo Satrio Agi Nugraha Setyo Nugroho Setyo Nugroho Shade Rahmawati Sholihin Silvianita, Silvianita Sri Sumardiani Sujantoko Sujantoko Vebby A. Kurniawan Wahyudi Wisnu Wardhana Wolfgang Busse Wolfgang Busse Yeyes Mulyadi Yunan Setiawan Suwandono Zikra, Muhammad