Article Per Year (5 Year)
p-Index From 2020 - 2025
1.745
P-Index
This Author published in this journals
All Journal OISAA Journal of Indonesia Emas Journal TEPAT: Teknologi Terapan untuk Pengabdian Masyarakat Jurnal Penelitian Enjiniring Fakultas Teknik Unhas Zona Laut : Jurnal Inovasi Sains dan Teknologi Kelautan Maritime Park: Journal Of Maritime Technology and Socienty Makara Journal of Technology Riset Sains dan Teknologi Kelautan
Muhammad Zubair Muis Alie
Unknown Affiliation
Arts Humanities Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Public Health Transportation

Published : 13 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 13 Documents
Search

 1   2 
FATIGUE ANALYSIS OF CATENARY MOORING SYSTEM DUE TO HARSH ENVIRONMENT IN FOLLOWING SEAS Assidiq, Fuad Mahfud; Paroka, Daeng; Alie, Muhammad Zubair Muis; Klara, Syerly
Jurnal Indonesia Emas PPI Dunia Vol 1 No 01 (2018): OISAA Journal of Indonesia Emas
Publisher : PPI Dunia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2375.517 KB)

Abstract

In the operation, Floating Production Unit (FPU) will get dynamic loads on the structure periodically such as the mooring line responses. The aim of the present study to discuss fatigue life on catenary mooring system refers to the comparison of using or without using the Single Line Freestanding Riser (SLFR), the operational design and installation conditions at FPU Gendalo-Gehem and located in the Makassar Strait using the six-strand wire rope with 0,115 meters outer diameter and 1.200 meters length will be fatigue life analysed. The FPU motion observation shows the highest Response Amplitude Operator (RAO) surge, sway, heave, roll, pitch, and yaw motion due to harsh environments are 0,615 m/m, 1,01x10-6 m/m, 1,048 m/m, 1,14x10-5 0/m, 2,23 0/m, and 9,08x10-8 0/m. It means that the amplitude response will always be smaller than the wave amplitude coming up. Taking into RAO motion calculation, the fatigue life on catenary mooring systems for following seas are 445 years in mooring line 1 and mooring line 8 with using SLFR while without using SLFR for 5.461 years in mooring line 1. The structure is still in safe condition because of the design safety factor about 300 years.
Pengaruh Brace Terhadap Kekuatan Kaki Struktur Helideck Dalam Menahan Beban Pendaratan Darurat Helikopter Anwar st; Ganding Sitepu; Muhammad Zubair Muis Alie
Jurnal Penelitian Enjiniring Vol 22 No 2 (2018)
Publisher : Center of Techonolgy (COT), Fakultas Teknik, Universitas Hasanuddin

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (764.233 KB) | DOI: 10.25042/jpe.112018.11

Abstract

Brace dan kaki struktur menjadi perhatian penting dalam merencanakan struktur helideck. Penelitian ini bertujuan menghitung kekuatan kaki struktur helideck terhdap variasi brace dalam menahan beban pedaratan darurat helikopter. Lokasi penelitian dilakukakn di laboratorium Struktur Departemen Perkapalan, Fakultas Teknik, Universitas Hasanuddin. Data yang digunakan adalah struktur helideck FSO Geudondong PT.Pertamina shipping Indonesia corporation. Perhitungan tegangan dan pemodelan struktur menggunakan software SACS, analisis pendaratan darurat helikopter dibagi menjadi tiga arah pendaratan yaitu arah transversal, logitudinal dan arah diagonal. Dalam mencari dimensi kaki yang optimal maka dilakukan pengurangan tebal dan diameter kaki struktur helideck sebesar 10%, 20%, 30% dan 40% dengan empat variasi model brace yaitu brace X, K, N dan Y. Hasil perhitungan tegangan maksimum yang bekerja terjadi pada posisi pendartan diagonal pada posisi D4 dengan tegangan kerja sebesar 49,86 N/mm2 dan nilai IR 0,45. Interaksi rasio (IR) yang terjadi pada kaki struktur pada pengurangan dimensi 40% sebesar (brace X = 0,99), (brace K =1,19), (brace N = 1,04), (brace Y = 1,03). Model brace yang paling lemah dalam menahan beban pendaratan darurat helikopter adalah model brace K dengan (IR = 1,19) dan model brace yang paling kuat adalah adalah brace X dengan IR = 0,99.
Sosialisasi Keselamatan Penyeberangan Wisata Pulau-Pulau Makassar Firman Husain; Juswan -; Taufiqur Rachman; Ashury -; Muhammad Zubair Muis Alie; Habibi Palippui
JURNAL TEPAT : Teknologi Terapan untuk Pengabdian Masyarakat Vol 4 No 2 (2021): Community Empowerment through Health Awareness in the New Normal
Publisher : Faculty of Engineering UNHAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25042/jurnal_tepat.v4i2.229

Abstract

The increasing number of tourists visiting the islands in the Makassar City area is an exciting thing, especially for the perpetrators of inter-island crossing transportation. On the other hand, the safety aspect of this crossing must be a concern not only for tourists and the crossing transportation actors themselves, but the government and the general public must also provide input. Currently, there are about 25 boats operating on island tourism crossings, especially those operating at Panyua Pier. To increase awareness and safety of this sea crossing, a socialization activity on safety rules was carried out. The socialization was carried out directly in the room by presenting the crossing transportation actors. The participants were given material on safety rules for sea crossing transportation by the socialization team from the Department of Marine Engineering as part of the tridharma of higher education. Due to the ongoing pandemic conditions, the number of participants present in the room is limited. This socialization activity is aimed at the perpetrators of crossing transportation to tourist islands or in local terms called "palimbang" or people who cross passengers to the island using motor boats. Prior to the socialization, the committee gave a pretest to measure the level of knowledge of the 15 participants of the socialization. Posttest was also given after the socialization activity was carried out with the aim of knowing how well the participants' ability to absorb the socialization material was. From the results of the pretest to several questions, the result was an increase in knowledge of about 28.33% of the material given. At the end of this socialization activity, the participants were given life jackets as a safety tool, with the hope that the palimbangs will continue to use them while carrying out palimbang activities for their safety.
Residual Strength Analysisof Asymmetrically Damaged Ship Hull GirderUsing Beam Finite Element Method Alie, Muhammad Zubair Muis
Makara Journal of Technology Vol. 20, No. 1
Publisher : UI Scholars Hub

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

Abstract

The objective of the present study is to analyze the residual strength of asymmetrically damaged ship hull girder under longitudinal bending. Beam Finite Element Method is used for the assessment of the residual strength of two single hull bulk carriers (Ship B1 and Ship B4) and a three-cargo-hold model of a single-side Panamax Bulk Carrier in hogging and sagging conditions. The Smith’s method is adopted and implemented into Beam Finite Element Method. An efficient solution procedure is applied; i.e. by assuming the cross section remains plane, the vertical bending moment is applied to the cross section and three-cargo-hold model. As a fundamental case, the damage is simply created by removing the elements from the cross section, neglecting any welding residual stress and initial imperfection. Also no crack extension is considered. The result obtained by Beam Finite Element Method so-called Beam-HULLST is compared to the progressive collapse analysis obtained by HULLST for the validation of the present work. Then, for the three-hold-model, the Beam-HULLST is used to investigate the effect of the rotation of the netral axis both intact and damage condition taking the one and five frame spaces into account.
Investigation of Ship Hull Girder Strength with Grounding Damage Alie, Muhammad Zubair Muis; Adiputra, Ristiyanto
Makara Journal of Technology Vol. 22, No. 2
Publisher : UI Scholars Hub

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

Abstract

The objective of the present study is to investigate ship hull girder strength as a result of grounding damage upon longitudinal bending. A bulk carrier and tanker are analyzed and Smith’s Method is adopted and implemented in the analysis program. An efficient solution procedure is performed by assuming the cross-section remains plane and the vertical bending moment is applied to the cross section. As a fundamental case, the damage is simply created by removing the elements from the cross section. Welding residual stress, initial imperfections, and crack extensions are not considered. The grounding damage is made by two conditions, namely those are placed at the center part of the cross section and those located at an asymmetric position. To determine the ultimate strength, which includes the progressive collapse behavior of ship hull with damage, the simply supported scenario is imposed to the cross section and hogging and sagging conditions are taken into account. The results obtained for intact and damage conditions by the in-house program are compared with one another to observe the collapse behavior in advance.
Effects of Collision Damage on the Ultimate Strength of FPSO Vessels Alie, Muhammad Zubair Muis; Ramasari, Dian; Rachman, Taufiqur; Adiputra, Ristiyanto
Makara Journal of Technology Vol. 24, No. 1
Publisher : UI Scholars Hub

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

Abstract

Floating production storage offloading (FPSO) vessels are movable offshore structures. These structures are designed with large dimensions, and their decks are loaded with several types of equipment. During collision damage, the hull and deck parts loaded with equipment are severely affected. Therefore, the ultimate strength of FPSO vessels should be thoroughly checked and evaluated. The objective of the present study is to analyze the ultimate strength of FPSO vessels against collision damage characterized by hogging and sagging under longitudinal bending. The cross section of an FPSO vessel is modeled with elements composed of stiffened and unstiffened plates. The vessel length is assumed to occupy one frame space. The ultimate strength of FPSO vessels against collision damage is determined by performing a numerical analysis under hogging and sagging conditions. Multipoint constraint is applied to both sides of the cross section, and the material properties are set to be constant. Collision damage is represented by the loss of element stiffness, and it represents the percentage of the ship’s depth. For the extent of transversal damage, B/16 is set to be constant. The minimum and maximum collision damages are taken as 10% and 60% of the ship’s depth, respectively. Numerical results show that the ultimate strength of FPSO vessels and their bending stiffness decrease under collision.
PENGARUH OPTIMASI BEBAN RANGKA TUBULAR TERHADAP ANALISIS KEKUATAN TEKUK DAN KELELAHAN PADA FIXED OFFSHORE PLATFORM Phady, Adriani; Rajmi, Astika; Ramadhani, Fitri; Andalan, Muhammad Teguh Perdana; Aski, Salsabila; Alie, Muhammad Zubair Muis
Riset Sains dan Teknologi Kelautan Volume 3, Nomor 1, Tahun 2020
Publisher : Departemen Teknik Kelautan Fakultas Teknik Universitas Hasanuddin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62012/sensistek.v3i1.13233

Abstract

Artikel ini membahas mengenai pengaruh optimasi beban rangka tubular terhadap analisis kekuatan tekuk dan kelelahan pada fixed offshore platform. Anjungan lepas pantai tipe fixed digunakan sebagai platform produksi atau pemulihan minyak di laut dangkal, dan juga diterapkan pada struktur pendukung turbin angin Offshore dalam beberapa tahun terakhir. Struktur jaket biasanya dirancang untuk menjadi konservatif dan besar sesuai dengan berbagai kode desain. Dalam kasus ini, kekuatan dan kelelahan struktural metode perancangan struktur platform jaket berdasarkan beban maksimum yang bekerja pada rangka tubular. Pengaruh beban tekuk dan beban lateral juga memberikan pengaruh yang signifikan, tidak hanya terhadap beban tekuk kritis tetapi juga terhadap deformasi dan tumpuan tegangan. Analisis umur kelelahan menunjukkan bahwa struktur rangka tubular yang diamati melalui pembebanan optimal menunjukkan respon terhadap berbagai beban yang bekerja. Hal ini mungkin disebabkan oleh gambaran respon tegangan, yang merupakan parameter penting dalam menentukan umur kelelahan. Material dan ukuran dimensi struktur yang mempengaruhi optimasi dari pergerakan struktur. Retak ekstensi dan korosi tidak dipertimbangkan. Untuk menilai kekuatan tekuk dan kelelahan struktur ini, karena bentuk konfigurasi setiap rangka tubular dari fixed offsore platform, yang terbatas dianalisis dengan metode elemen hingga (FEM) diadopsi. Analisis tekuk dilakukan pada struktur ini oleh mempertimbangkan bidang dua dimensi untuk mendapatkan beban tekuk kritis untuk rangka tubular; Analisis umur kelelahan kemudian dihitung untuk menghasilkan umur kelelahan tersebut struktur. Hasil yang diperoleh FEM dibandingkan dengan solusi analitik untuk beban tekuk kritis. Kurva tegangan regangan juga diterapkan untuk menunjukkan optimasi beban yang bekerja pada rangka tubular.
STUDI PENELAAHAN BEBERAPA METODE PADA ANALISIS KEKUATAN KAPAL Suci, Indah Melati; Arafat, Andi Muhammad Alfian; Sagita, Rian; Padaunan, Alfred Michael; Alie, Muhammad Zubair Muis
Riset Sains dan Teknologi Kelautan Volume 3, Nomor 1, Tahun 2020
Publisher : Departemen Teknik Kelautan Fakultas Teknik Universitas Hasanuddin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62012/sensistek.v3i1.13235

Abstract

Salah satu kriteria terpenting dalam desain kapal adalah kekuatan. Ketika kapal berada di bawah beban eksternal seperti gelombang, daya apung atau tekanan, reaksi internalnya harus menahan beban eksternal tersebut. Apabila tubrukan terjadi, lambung kapal tidak hanya menerima dampaknya tetapi juga geladaknya. Sifat statistic kekuatan sisa gelagar lambung ditentukan dengan simulasi Monte Carlo berdasarkan demensi kerusakan dan bentuk modifikasi dari Metode Incremental Iterative untuk memperhitungkan rotasi sumbu netral dan kesetimbangan momen lentur horizontal. Analisis numerik membahas bebarapa aspek yang berhubungan dengan respon struktur kapal yang mengalami beban tidak terduga, termasuk pentingnya menentukan model las, pengaruh kriteria kegagalan, hubungan material pada simulasi struktur kompleks, dan aplikasi penskalaan dalam menilai respon dari struktur skala penuh. Metode Beam Finite Element untuk menguji kekuatan sisa kapal dan sebuah model tiga ruang muat kapal dengan tipe Panamax berlambung tunggal pada kondisi hogging dan sagging. Analisis Elemen Hingga (FE) nonlinear mencakup static implisitanalisis dan analisis dinamis eksplisit yang keduanya dapat mempertimbangkan defleksi besar dan nonlinear selama proses kerutuhan progresif. Pendekatan melibatkan evaluasi pengaruh opsi pengendalian resiko pada kegagalan gelagar laambung. Probabilitas ditentukan dengan menggunkan analisis keandalan struktur dan penentuan biaya yang diperoleh pada kegagalan lambung girder diantaranya kerusakan property kapal, pencemaran akibat tumpahan minyak dan hilangnya nyawa awak kapal seperti yang diusulkan oleh International Maritime Organization (IMO).
ANALISIS KEKUATAN ANCHOR CROWN SHACKLE PADA FPU MADURA STRAIT DENGAN VARIASI SUDUT MOORING LINE Ismail, Imam; Paroka, Daeng; Alie, Muhammad Zubair Muis
Riset Sains dan Teknologi Kelautan Volume 4, Nomor 1, Tahun 2021
Publisher : Departemen Teknik Kelautan Fakultas Teknik Universitas Hasanuddin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62012/sensistek.v4i1.19395

Abstract

Floating produciton unit Madura Strait yang akan disingkat FPU adalah suatu struktur terapung yang berfungsisebagai unit produksi minyak dan gas yang akan diletakkan pada selat madura yang akan ditambatkan secaracatenary kepada jangkar di dasar laut. Selama pengoperasiannya FPU akan mengalami pergerakan secara terus menerus akibat hasil respon terhadap beban dinamis yang menghantamnya. Hal ini akan berisiko kepada gagalnya mooring line. Selain mooring line, kekuatan penyambung rantai juga menjadi salah satu struktur yang mesti diperhatikan, yaitu anchor crown shackle dan conecting link. Dalam penelitian kali ini bertujuan menganalisakekuatan dari anchor crown shackledan connecting link, yang didahulukan dengan mencari nilai tension terbesar dengan melakukan analisa time domain terhadap mooring line dengan variasi beberapa sudut antar mooring linepada kondisi ULS dan ALS. Hasil analisanya menunjukkan bahwa variasi sudut antar mooring line sebesar 5° adalah yang paling aman bagi FPU karena memiliki akumulasi nilai RAO yang rendah dan safety factor mooring line yang paling tinggi secara akumulasi dalam kondisi ALS dan ULS dibanding variasi yang lain. Untuk kekuatan anchor crown shackle dan connecting link, hasil analisa dengan menggunakan beban sebesar 2500kN akibat tension maksimum yang dihasilkan oleh mooring line pada kondisi ALS menunjukkan nilai tegangan maksimum 278.54 Mpa yang berarti nilainya lebih kecil dari 90% yield strength material (417.42 Mpa) dan deformasi terbesar 0.00024 m untuk anchor crown shackle dan 0.00034 untuk connecting link yang berarti masing – masing nilainya kurang dari 5% diameter struktur (0.01 m) sehingga struktur tersebut dapat dikatakan aman menurut standar yangdiizinkan oleh ABS.Kata kunci: FPU, tension, RAO, von mises stress, anchor crown shacle, connecting link.
Socialization of Coastal and Marine Geohazard of Makassar City Coastal Tourism Area Rachman, Taufiqur; ., Juswan; Paroka, Daeng; Baeda, Achmad Yasir; Rahman, Sabaruddin; Paotonan, Chairul; Umar, Hasdinar; Alie, Muhammad Zubair Muis; ., Ashury; Husain, Firman; Assidiq, Fuad Mahfud
JURNAL TEPAT : Teknologi Terapan untuk Pengabdian Masyarakat Vol 6 No 2 (2023): Let us Collaborate for Community Issues
Publisher : Faculty of Engineering UNHAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25042/jurnal_tepat.v6i2.451

Abstract

Coastal and marine geohazard threats can occur in coastal tourism areas in Makassar City. Several coastal tourism sites in Makassar City are managed by the community, namely by the Tanjung Merdeka Community Empowerment Agency (LPM) and acts as a partner for socialisation activities. Tourism managers are still ignorant of the potential for coastal and marine geohazards, such as the lack of information on geohazard signs and the potential for accidents that lead to disasters for tourism visitors. Socialisation of coastal and marine geohazards in Makassar City's coastal tourism areas has been carried out with an increase in the average knowledge of participants by 45.3%. The increase in partner knowledge includes awareness, preparedness, and disaster response attitudes about coastal and marine geohazard phenomena in coastal tourism activities, which can ultimately encourage and realise partners as community-based tourism managers who implement early warning of disaster risk and occupational safety. Strengthening partners is realised by handing over coastal and ocean geohazard signs as an early warning of disasters that can occur at tourist sites.
Co-Authors ., Ashury Adiputra, Ristiyanto Alamsyah Andalan, Muhammad Teguh Perdana Anwar Anwar Arafat, Andi Muhammad Alfian Ashury - Ashury, Ashury Aski, Salsabila Assidiq, Fuad Mahfud Assidiq, Fuad Mahfud Chairul Paotonan Daeng Paroka Firman Husain Firman Husain Fitri Ramadhani Ganding Sitepu Habibi Palippui Hasdinar Umar Imam Ismail Juswan - Juswan . Juswan, Juswan Martinus Padaunan, Alfred Michael Phady, Adriani Rajmi, Astika Ramasari, Dian Sabaruddin Rahman Sagita, Rian Samsu Dlukha N Suci, Indah Melati Suyono Suyono Syerly Klara Taufiqur Rachman