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All Journal KAPAL Jurnal Ilmu Pengetahuan dan Teknologi Kelautan Jurnal Penelitian Enjiniring Fakultas Teknik Unhas Zona Laut : Jurnal Inovasi Sains dan Teknologi Kelautan Jurnal Pengabdian kepada Masyarakat Maritime Park: Journal Of Maritime Technology and Socienty Riset Sains dan Teknologi Kelautan Jurnal Polimesin
Suci, Indah Melati
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Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Economics, Econometrics & Finance Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mechanical Engineering Public Health Social Sciences Transportation Other

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Sistem Respon Satu Derajat Kebebasan terhadap Beban Harmonik pada Struktur Portal 2D Muis Alie, Muhammad Zubair; Suci, Indah Melati; Rajmi, Astika; Arafat, Andi Muhammad Alfian
Jurnal Penelitian Enjiniring Vol 23 No 2 (2019)
Publisher : Center of Techonolgy (COT), Fakultas Teknik, Universitas Hasanuddin

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (270.875 KB) | DOI: 10.25042/jpe.112019.07

Abstract

Response of One Degree of Freedom System to Harmonic Loading on the structure idealized as single degree of freedom systems excited harmonically, that is structure subjected to force or displacement where the magnitude may be represented by a sine or cosine function of time. This type of excitation results one of the most important motions in the study of mechanical vibrations as well as in applications to structural dynamics. Structure is very often subjected to the dynamic action such cyclic load acting and resulting response due to the the unavoidable load eccentricity. The objective of the present study is to analyze the response of one-degree of freedom system to the portal 2D. The structure is modelled and analyzed using finite element method. The result obtained by FE method is joint displacement of the structure.
Longitudinal Strength Analysis Considering the Cargo Load on Very Large Crude Carrier (VLCC) Suci, Indah Melati; Sitepu, Ganding; Muis Alie, Muhammad Zubair
Kapal: Jurnal Ilmu Pengetahuan dan Teknologi Kelautan Vol 18, No 3 (2021): October
Publisher : Department of Naval Architecture - Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/kapal.v18i3.42349

Abstract

The ultimate strength of the Very Large Crude Carrier (VLCC) is an important aspect that must be analyzed. The purpose of this study was to analyze the ultimate strength of the VLCC ship in terms of deformation under hogging and sagging conditions on the deck and bottom. Deformation is a change in the shape or size of a material due to a workforce that is applied to you. In this case, the deformation in question arises due to the working moment. This deformation analysis was carried out using the Non-Linear Finite Element Analysis (NLFEA) method. This analysis is carried out by presenting the support or Multi-Point Constraints (MPC) in the cross-section, as well as moments of 6.52 × 1012  for hogging conditions and -5.5 × 1012  for slack conditions.
Pengaruh Konfigurasi Brace Pada Struktur Rangka Dua Dimensi (2D) Indah Melati Suci; Muhammad Zubair Muis Alie
Zona Laut : Jurnal Inovasi Sains Dan Teknologi Kelautan Volume 1, Nomor 2, Edisi Juli 2020
Publisher : Departemen Teknik Kelautan Universitas Hasanuddin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/zl.v1i2.10833

Abstract

The portal structure generally consists of 2 and 3 dimensions, the loads that work on it are also varied adapted to the purpose of the portal itself is used. A portal structure of either 2 or 3 dimensions is a tructure composed of beams and columns, so it is generally reinforced with a diagonal stem called a brace. The study aims to analyse the influence ofbrace configurations on 2-dimensional portals. The structure is modeled after a varied configuration of brace consisting of 5 models. The condition of the fifth boundary of the model is the joints and clamp with a constant axial load point working on the vertical pole. The portal dimensions, yield voltage, modulus of elasticity and poison ratio are assumed to be constant. For modeling, computation and analysis, used computer auxiliary programs namely SAP 2000. The results gained are focus reactions, point displacement and deformation of the five models.
Comparison of the Ultimate Strength with and without Hatch Opening Subjected to Longitudinal Bending Indah Melati Suci; Muhammad Zubair Muis Alie; Ganding Sitepu
Kapal: Jurnal Ilmu Pengetahuan dan Teknologi Kelautan Vol 19, No 2 (2022): June
Publisher : Department of Naval Architecture - Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/kapal.v19i2.45097

Abstract

The hatch opening has function to enter the load into the cargo hold. One of the ship types like this is Bulk Carrier. The hatch opening must be designed in suitable way because its influence to the ultimate strength since the hull girder under longitudinal bending moment. The application of the hatch opening on the ship’s deck should be considered for the ship design criteria. The objective of the present study is to analyze the ultimate strength with and without hatch opening subjected to longitudinal bending moment. The cross section of box girder is used to analyze the effect of hatch opening to the ultimate strength. This cross section of box girder is adopted for simple calculation. The application of Multiple Point Constrained (MPC) is adopted to analyze the box girder under longitudinal bending moment. The cross section of box girder is assumed remained plane during progressive collapse. The material such as density, yield strength, elastic modulus and poison ratio are homogeneous. The type and dimensions of the stiffeners are also identic. The only one of the differences for the stiffener is number due to the hatch opening at the top of the box girder. It is found that the ultimate strength of the box girder with hatch opening is smaller than without opening one. 
KAJIAN TEKNOLOGI PENANGANAN KEBOCORAN PIPA PADA BANGUNAN LEPAS PANTAI DI LAUT UTARA KARAWANG Phady, Adriani; Rahim, Fitri Ramadani; Suci, Indah Melati; Rachman, Taufiqur
Riset Sains dan Teknologi Kelautan Volume 2, Nomor 1, Tahun 2019
Publisher : Departemen Teknik Kelautan Fakultas Teknik Universitas Hasanuddin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62012/sensistek.v2i1.13218

Abstract

Indonesia memiliki luas laut 96.079 km2 dan panjang garis pantai sebesar 99.093 km. Potensi laut yang dimiliki Indonesia tersebut merupakan suatu peluang ekonomi yang dapat dimanfaatkan untuk kemajuan perekonomian Indonesia, serta sebagai tulang punggung pembangunan nasional. Untuk memanfaatkan potensi tersebut di butuhkan teknologi modern untuk mengolahnya, salah satunya teknologi perpipaan yang digunakan pada bangunan lepas pantai. Akan tetapi, sumber utama pencemaran laut adalah berasal dari tumpahan minyak baik dari proses di kapal, pengeboran lepas pantai maupun akibat kecelakaan kapal tanker. Salah satunya adalah mengenai kebocoran pipa pada bangunan lepas pantai, dalam kasus ini pada lepas pantai di laut Utara Karawang. Perlu dilakukan analisis terkait desain pipa sampai dengan pengaruh lingkungan untuk mengetahui ketahanan pipa guna mengantisipasi kebocoran pada pipa. Studi literatur dilakukan untuk mengumpulkan data-data terkait kebocoran pipa sebagai bahan pertimbangan mencari solusi terbaik. Dalam penerapan teknologi dapat ditemukan banyak masalah sehingga diperlukannya penanganan khusus berupa analisis terhadap faktor tegangan, regangan, beban tekanan, beban lingkungan di sekitar Bangunan Lepas Pantai milik PT. Pertamina Hulu Energi daerah Karawang Provinsi Jawa Barat. Pipa yang digunakan pada bangunan lepas pantai akan mengalami freespan, suatu kondisi dimana bentangan pipa dengan panjang tertentu memiliki jarak terhadap seabed, yang dapat di analisis proses perubahan fasenya serta beban yang bekerja pada pipa yang mengalami freespan. Beberapa cara mengatasi kebocoran pipa antara lain, melakukan investigasi terhadap pipa-pipa yang bocor, dan melakukan peenggantian terhadap pipa-pipa yang sudah tua dan rusak atau bocor.
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).
Pengaruh Torsi terhadap Kekuatan Longitudinal pada Kapal Peti Kemas Suci, Indah Melati; Alie, Muhammad Zubair Muis
Zona Laut : Jurnal Inovasi Sains Dan Teknologi Kelautan Volume 6, Number 1, March 2025 Edition
Publisher : Departemen Teknik Kelautan Universitas Hasanuddin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62012/zl.v6i1.43178

Abstract

The large deck openings of ultra-large container ships greatly reduce their torsional stiffness, and hydroelastic analysis is a must for reliable structural design. In the initial design stage, the beam model is a rational choice. This study aims to investigate torsion's effect on container ships' strength using a numerical approach based on fatigue boundary conditions and ultimate boundary conditions in the midship region. Regarding fatigue boundary conditions, the dimensional influence of the container ship is obtained at the connection between the longitudinal side shell stiffeners and the transverse web frame for nine structural details, which refer to different arrangements of reinforcing elements. The structural influence on the local stress distribution was assessed along the longitudinal plates between the regular stiffeners bounding the perimeter of the torsion box by calculating the hull girder stresses. Keywords: Container Ships, Cross Section, Torsion, Longitudinal Strength
PERSEPSI MASYARAKAT KAMPUNG PELITA UNTUK BUDIDAYA LELE BERBASIS BIOFLOK DAN ENERGI TERBARUKAN SERTA INOVASI PRODUK OLAHAN: ANALISIS MINAT DAN KESIAPAN WARGA Adnyani, Luh Putri; Habibie, Fadeli Muhammad; Wirawan, Muhammad Khaisar; Suci, Indah Melati
J-ABDI: Jurnal Pengabdian kepada Masyarakat Vol. 5 No. 4: September 2025
Publisher : Bajang Institute

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

Abstract

Kegiatan pengabdian ini dilaksanakan di Kampung Pelita, Balikpapan, dengan tujuan untuk menganalisis persepsi, minat, dan kesiapan masyarakat dalam mengadopsi budidaya ikan lele berbasis teknologi bioflok, pemanfaatan energi terbarukan (PLTS), serta pengembangan produk olahan bernilai tambah. Permasalahan yang dihadapi mitra meliputi metode budidaya tradisional, keterbatasan energi, minimnya inovasi produk, dan kurangnya pelatihan teknis. Metode pelaksanaan meliputi survei lapangan, penyebaran kuesioner dikotomis kepada 16 kepala keluarga, serta wawancara untuk menggali informasi kualitatif. Hasil menunjukkan bahwa meskipun pemahaman awal tentang teknologi bioflok dan PLTS masih rendah, terdapat antusiasme tinggi untuk mengikuti pelatihan dan mengembangkan usaha berbasis ikan lele. Program ini menunjukkan potensi besar dalam memperkuat ekonomi keluarga dan dapat direplikasi untuk komunitas lain dengan karakteristik serupa.
Redisigning the Construction of Graving Dock Gate to Get a More Optimal Design Suci, Indah Melati; Alamsyah; Nurcholik, Samsu Dlukha; Martinus; Alie, Muhammad Zubair Muis
Maritime Park: Journal of Maritime Technology and Society Volume 4, Issue 3, 2025
Publisher : Department of Ocean Engineering, Faculty of Engineering, Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62012/mp.vi.46023

Abstract

The graving dock gate is one part of the graving dock construction. the construction of the graving dock gate that is directly facing the sea must be able to withstand the load from the water at all times. by making modifications to the Gate construction, the design results are obtained which are quite optimal in terms of weight strength. the redesign of the graving dock Gate pt.barokah galangan perkasa cannot be separated from a problem where the previous construction design was too heavy and exceeded the required laden. Causing the graving dock gate to not be able to float when the water conditions are low. The main size of the graving dock gate pt.barokah galangan perkasa is 3 meters long, 46 meters wide, 7.32 meters high. the method used in this redesign process is to use the e application of the finite element method ANSYS apdl, while 3d modeling uses SketchUp, and AutoCAD.
Mechanical and impact performance of oil palm trunk fiber composites for crash box applications Sukarno, Sukarno; Suci, Indah Melati
Jurnal Polimesin Vol 23, No 5 (2025): October
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v23i5.7818

Abstract

The increasing demand for lightweight and sustainable materials in automotive safety components has driven interest in natural fiber composites. Abundant oil palm trunk waste in South Kalimantan presents a promising, low-cost source for composite reinforcement. This study aims to analyze the crashworthiness performance of crash box structures using oil palm trunk fiber composites as an environmentally friendly alternative material. The research method involved the fabrication of composite specimens with fiber orientations of 30°, 60°, and 90°, using epoxy resin as the matrix. Mechanical testing included tensile tests based on ASTM D638-02 and Charpy impact tests based on ASTM D6110. The tensile test results showed that fiber orientation significantly affects the mechanical properties of the composites. The 60° orientation exhibited the highest tensile strength and elastic modulus, while the 30° orientation demonstrated the highest elongation, indicating better ductility. The 90° orientation showed intermediate performance but tended to be brittle. The impact test results revealed that the 60° fiber orientation had the highest toughness in absorbing impact energy, whereas the 30° and 90° orientations displayed lower toughness. Overall, the 60° fiber orientation of oil palm trunk composites shows potential for crash box applications, as it provides a balance between strength and toughness, although its brittleness still requires further consideration.
Co-Authors Alamsyah Arafat, Andi Muhammad Alfian Fadeli Muhammad Habibie Ganding Sitepu Ganding Sitepu Luh Putri Adnyani M. Sukarno Martinus Muhammad Zubair Muis Alie Muhammad Zubair Muis Alie Muhammad Zubair Muis Alie Muhammad Zubair Muis Alie, Muhammad Zubair Padaunan, Alfred Michael Phady, Adriani Rahim, Fitri Ramadani Rajmi, Astika Sagita, Rian Samsu Dlukha N Taufiqur Rachman Wirawan, Muhammad Khaisar