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All Journal JTT (Jurnal Teknologi Terpadu) Turbo : Jurnal Program Studi Teknik Mesin INOVTEK POLBENG Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Wave: Jurnal Ilmiah Teknologi Maritim Specta Journal of Technology International Journal of Marine Engineering Innovation and Research PIKAT
Amalia Ika Wulandari
Institut Teknologi Kalimantan
Agriculture, Biological Sciences & Forestry Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Physics Transportation Other

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ANALISIS KEKUATAN MEMANJANG PADA GELADAK KAPAL KONTAINER DENGAN METODE ELEMEN HINGGA Amalia Ika Wulandari; Suardi Suardi; Dimas Putra Wahid Rusparyansyah
Wave: Jurnal Ilmiah Teknologi Maritim Vol. 16 No. 1 (2022)
Publisher : National Research and Innovation Agency

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29122/jurnalwave.v16i1.5287

Abstract

Berdasarkan data yang diterbitkan oleh United Nations Conference on Trade And Development, tercatat jumlah kapal kontainer aktif yang berlayar di seluruh dunia pada tahun 2016 sebanyak 6.086 kapal. Menurut data European Maritime Safety Agency, terdapat 1.101 kasus kecelakaan kapal kontainer di seluruh dunia pada rentang tahun 2011 hingga 2015. Salah satu faktor penyebab kecelakaan tersebut adalah kegagalan struktur pada geladak yang tidak mampu menahan beban yang ada selama kapal beroperasi. Penelitian ini bertujuan untuk menganalisis kekuatan memanjang pada geladak Kapal Kontainer 409 TEU berbahan baja KI-A36 dengan metode non-linear finite element method. Beban yang diberikan pada penelitian ini adalah beban dinamis berupa gelombang hogging dan sagging serta jenis pelat pada kapal yang digunakan yaitu AH-36. Hasil penelitian diperoleh tegangan maksimum paling tinggi adalah 288,954 N/mm2 dengan safety factor 1,229 yaitu pada kondisi ketebalan pelat 75% saat sagging, dan tegangan maksimum terkecil adalah 225,216 N/mm2 dengan safety factor 1,576 yaitu pada kondisi ketebalan pelat 100% saat hogging. Momen lentur vertikal yang diperoleh adalah 4,46 x 1011 N.mm pada kondisi hogging dan -4,66 x 1011 N.mm pada kondisi sagging. Kemudian pada kondisi hogging, momen ultimate terbesar adalah 1,196 x 1012 N.mm dengan safety factor 2,68 pada ketebalan pelat 100% dan momen ultimate terkecil adalah 8,687 x 1011 N.mm dengan safety factor 1,95 pada ketebalan pelat 75%. Pada kondisi sagging, momen ultimate terbesar adalah -9,882 x 1011 N.mm dengan safety factor 2,12 pada ketebalan pelat 100% dan momen ultimate terkecil adalah -6,271 x 1011 N.mm dengan safety factor 1,34 pada ketebalan pelat 75%.
ANALISIS UMUR KELELAHAN STRUKTUR RUANG MUAT KAPAL SPOB AKIBAT BEBAN SLOSHING Amalia Ika Wulandari
Jurnal Teknologi Terpadu Vol 10, No 2 (2022): JTT (Jurnal Teknologi Terpadu)
Publisher : Pusat Penelitian dan Pengabdian Kepada Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32487/jtt.v10i2.1460

Abstract

Kapal self-propeller oil barge (SPOB) yang merupakan jenis kapal khusus untuk mengangkut muatan minyak mentah yang memiliki penggerak sendiri yang dapat menekan biaya operasional dalam pendistribusian. Menurut  data dari International Energy Agency (IEA), pada tahun 2023 kebutuhan minyak dunia meningkat menjadi 100.4 juta barel. Karena peningkatan kebutuhan minyak dunia yang meningkat, maka proses eksplorasi dan eksploitasi juga ikut meningkat sehingga kapal ini juga pengoperasian pelayarannya meningkat. Selama pelayaran, kapal diharuskan mampu bertahan dikondisi beban muatan berulang yang terjadi selama pelayaran. Beban muatan berulang yang terjadi secara terus menerus dapat mengakibatkan kelelahan pada struktur kapal dan akan membahayakan kapal. Maka diperlukan analisis fatigue life terhadap konstruksi struktur kapal. Penelitian dilakukan dengan memvariasikan beban muatan kapal dengan variasi 40%, 50%, 60%, dan 70% menggunakan metode elemen hingga. Hasil penelitian didapatkan nilai tegangan maksimal dari variasi beban muatan 70% adalah 117,08 MPa dengan fatigue life 38,57 tahun, beban muatan 60% adalah 114,74 Mpa dengan fatigue life 42,55 tahun, beban muatan 50% adalah 96,025 Mpa dengan fatigue life 80,28 tahun, dan beban muatan 40% adalah 96,01 Mpa dengan fatigue life 83,14 tahun.
Analisis kekuatan struktur ramp door haluan pada kapal Ferry Ro-Ro 1500 GT dengan variasi beban menggunakan Finite Element Method Alamsyah Alamsyah; Amalia Ika Wulandari; Muhammad Uswah Pawara; Muhammad Yusuf Al-Hafidz
TURBO [Tulisan Riset Berbasis Online] Vol 11, No 2 (2022): TURBO : Jurnal Program Studi Teknik Mesin
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v11i2.2161

Abstract

Ramp Door is a door to put a vehicle into a Ro-Ro ship or any other type of ship that transports vehicles. The use of Ramp Door is needed to facilitate the process of unloading and loading vehicles from the crossing dock to the ship and vice versa. This study aims to analyze the strength of Ramp Door structure with load variations from various types of vehicles in order to compress the maximum stress results and safety factors. The method used is the FEM method with the help of an element-based application up to. The results of the study obtained the maximum stress value of Ramp Door Bow with MPV vehicle type at an even load is 43.26 MPa. In this type of SUV vehicle, the maximum stress with an even load is 50.37 MPa. In sedan vehicle type the maximum stress with an even load is 37.61 MPa. in commerial vehicle type the maximum stress with an even load is 45.70 MPa. In this type of small truck vehicle, the maximum stress with an even load is 81.53 MPa. In large truck vehicles the maximum stress with an even load is 302.48 MPa. In this type of vehicle, the maximum stress bus with an even load is 178.08 MPa. For the largest safety factor value is a type of Commercial vehicle with a value of 8.91. While the smallest safety factor value is the type of Big Truck vehicle with a safety factor value of 1.01.
Testing the Inclination of an Industrial Diesel Engine Under Static Conditions According to the International Convention for the Safety of Life at Sea (SOLAS) Regulations suardi suardi; Muhdar Tasrief; Samsu Dlukha Nurcholik; Amalia Ika Wulandari; Wira Setiawan
International Journal of Marine Engineering Innovation and Research Vol 8, No 1 (2023)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v8i1.15749

Abstract

many industrial diesel engines are used as the main engine of the ship. Apart from being relatively cheaper, the availability of industrial engine is also very abundant, and the repair process is also not too complicated. However, when viewed from the SOLAS regulations related to the main requirements for a ship propulsion engine, it must also be considered, because it operates at sea, so that ship engines must be tougher than industrial engines, especially related to engine performance when experiencing rolling and trim. The purpose of this research is to test the feasibility of industrial diesel engines being operated on ships. By using a water-cooled single-cylinder diesel engine which is commonly used in small ships. The experimental method was used in this research to obtain optimal results according to the conditions in the field, the engine was made in three variations, namely the normal condition (without inclination angle), the rolling condition of 150, and the trim condition of 50 which complies with SOLAS regulations related to the inclination angle. The results of the research obtained torque, Specific Fuel Consumption (SFC), and engine thermal efficiency in various engine variations. The highest torque is in the condition of the 150 rolling engine, which is 13.87 N.m. The lowest SFC is in the condition of the 150 rolling engine, which is 194 gr/kW.h. and the highest thermal efficiency was also obtained at the condition of the 150 rolling engine, namely 44.9%. The higher the engine speed, the higher the engine performance value in rolling 150 conditions, and the 50 trim conditions experience an increasing trend, but in low rotation conditions (750 Rpm) the performance decreases. Seeing the results obtained, a water-cooled single-cylinder diesel engine can be used as a small boat propulsion engine.
PELATIHAN PEMBELAJARAN DASAR-DASAR BERHITUNG METODE JARIMATIKA UNTUK ANAK PANTI ASUHAN AL FURQON BALIKPAPAN Amalia Ika Wulandari; Andi Mursid Nugraha; Suardi; Anggit Dwi Putra; Erskine Simei Tonda; Desinta Larasati Ashar; Guskarim Rompon; Lista Putri Adinda Rahmi; Ryanda Bayu Laksana; Hijriah
Jurnal Pengabdian Kepada Masyarakat ITK (PIKAT) Vol. 3 No. 2 (2022): PIKAT : Jurnal Pengabdian Kepada Masyarakat
Publisher : LPPM Institut Teknologi Kalimantan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35718/pikat.v3i2.740

Abstract

Metode Jarimatika adalah salah satu metode berhitung yang simpel dan menarik untuk diajarkan pada anak-anak. Pembelajaran matematika menggunakan metode ini akan berfokus pada koordinasi motorik dari anak. Kegiatan pengabdian masyarakat ini akan menjadi aplikasi dari Tridarma Perguruan Tinggi yang wajib diampu oleh dosen di setiap tahunnya. Sumbangsih ilmu yang dimiliki oleh dosen untuk memberikan pencerahan kepada masyarakat, khususnya bagi anak-anak Panti Asuhan, yang merupakan siswa sekolah dasar sampai dengan sekolah menengah tingkat atas. Metode  kegiatan yang digunakan dalam pelatihan ini  adalah demonstrasi pembimbingan langsung. Anak anak panti asuhan akan diajari secara langsung bagaimana cara menggunakan jemari sebagai alat bantu hitung. Kegiatan ini juga dilengkapi dengan sosialisasi indahnya dunia pendidikan agar anak-anak yatim piatu baik yang masih anak-anak maupun yang sudah remaja akan tertarik untuk menempuh pendidikan hingga jenjang yang tinggi.Tujuan jangka panjang dari kegiatan yang dilakukan ini adalah untuk menambah wawasan cara berhitung cepat dengan menggunakan jemari sebagai alat yang selalu ada sehingga memudahkan saat diterapkan baik disekolah maupun di kehidupan sehari-hari.
Analisa Kekuatan Bracket Pada Kapal Ro-Ro Menggunakan Aplikasi Finite Element Alamsyah Alamsyah; Amalia Ika Wulandari; Bimo Harseno Ramadhan
SPECTA Journal of Technology Vol. 4 No. 3 (2020): SPECTA Journal of Technology
Publisher : LPPM ITK

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (504.244 KB) | DOI: 10.35718/specta.v4i3.218

Abstract

In the transverse frame of the ferry ro-ro, there is a construction of the amplifier called the bracket contained on the car deck. The bracket construction functions to connect 2 (two) other constructions such as transferred deck beam and frame. The purpose of this study is to determine the strength of the bracket against the maximum work stress that occurs after being compressed. The method used is a finite element analysis with the help of finite element based applications. On the bracket, modulus optimization will be carried out to approach yield strength after being subjected to deck loads and ship side loads. The results showed that the solid bracket had a modulus of wsolid = 1485.168 cm3, while the cross-section modulus of the bracket with a circle hole diameter 60 mm w60 = 1463.973 cm3, a bracket with a circle hole diameter 70 mm was w70 = 1451.511 cm3, and a bracket with a diameter circle hole 75 mm is w75 = 1443.771 cm3. Maximum working stress that occurs in solid brackets is σmax solid = 92.0871 N/mm2, with holes 60 mm ie σmax d60 = 96.6237 N/mm2, and with holes 70 mm ie σmax d70 = 155.999 N/mm2, does not exceed yield stress (σmax < σy = 250 N/mm2). While the bracket tension with the hole 75 mm is σmax d75 = 272.861 N/mm2, exceeding the yield stress (σmax < σy = 250 N/mm2). So that the perforation on bracket construction can be done only on diameter sizes d = 60 mm and 70 mm. This information can minimize the use of steel material that has an effect on the ship's steel weight calculation.
PENYULUHAN PRINSIP K3 PADA PEMBANGUNAN KAPAL KAYU TRADISIONAL KUB. PANRITA LOPI KABUPATEN PENAJAM PASER UTARA Andi Mursid Nugraha Arifuddin; Rodlian Jamal Ikhwani; Amalia Ika Wulandari; Taufik Hidayat
Jurnal Pengabdian Kepada Masyarakat ITK (PIKAT) Vol. 4 No. 1 (2023): PIKAT : Jurnal Pengabdian Kepada Masyarakat
Publisher : LPPM Institut Teknologi Kalimantan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35718/pikat.v4i1.729

Abstract

Industri galangan kapal kayu tradisional di Kabupaten Penajam Paser Utara merupakan salah satu usaha mandiri yang dilakukan oleh masyarakat setempat dengan memanfaatkan keterampilan membuat kapal kayu yang diperoleh secara turun temurun dari keluarganya. Masyarakat pengrajin kapal tersebut tergabung dalam sebuah kelompok usaha bersama (KUB) yaitu KUB Panrita Lopi. Produk yang dihasilkan oleh pengrajin kapal bahkan dapat menembus pasar nasional di Indonesia. Namun, dari observasi lapangan yang dilakukan terdapat satu faktor pendukung penting dalam usaha meningkatkan kegiatan produksi yaitu penerapan standar keselamatan dan kesehatan kerja (K3) di lokasi mitra yang masih rendah seperti tidak menggunakan alat perlindungan diri ketika melakukan aktivitas mekanik dan mobilisasi logistik. Sistem yang dibangun pada KUB masih sangat tradisional sehingga perlu didorong untuk terus meningkat. Salah satunya dengan peningkatan sistem keselamatan dan kesehatan kerja bagi para pengrajin. Melalui metode penyuluhan prinsip K3 yang dilakukan oleh Tim Pengabdian Masyarakat ITK, para pengrajin kapal kayu akan memiliki pengetahuan terkait keamanan dan keselamatan dalam membangun kapal kayu. Hasil penyuluhan memperlihatkan pemahaman para pengrajin terhadap K3 mengalami peningkatan sekitar 83% yang awalnya hanya 27%.
Design of Motorcycle-Passenger Ship (Klotok) Catamaran Type for Kampung Baru Balikpapan - Penajam Paser Utara Suardi Suardi; Rizky Risaldo; Andi Mursid Nugraha Arifuddin; Amalia Ika Wulandari; Wira Setiawan; Muhammad Uswah Pawara; Alamsyah Alamsyah
International Journal of Marine Engineering Innovation and Research Vol 8, No 3 (2023)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v8i3.17880

Abstract

Balikpapan City has an area of 508.9 km2 which has 646,727 people living here. Balikpapan City is also known as a port city because it has two domestic ports namely Kampung Baru Port and Semayang Port. Currently, the port of Kampung Baru is still active in carrying out daily activities, namely the klotok boat crossing and also the dock for motor boats berths. The condition of mobility for crossing vessels in the port of Kampung Baru that uses boat klotok is inadequate due to the lack of supporting components for access to the ship so the safety of this port is questioned. besides that, klotok ships are also only able to carry a maximum of 21 passengers and 5 motorcycles and access to loading and unloading exits is very unsafe. The purpose of this study is to design a crossing ship that can be used safely for transportation for passengers and motorcycles that will pass the sea lane for crossing to the North Penajam Paser area. The ship is designed to have an easy access door or ramp door for passenger and motorcycle mobility to improve the safety of crossings at the port of Kampung Baru. The parent Design Approach method is used in this project, this method is one way of designing a ship using comparison or comparison, namely by taking a ship that is used as a reference for a comparison ship that has the same characteristics as designed ship. The main focus to be achieved in this research obtained a General Arrangement which has more cargo than the klotok ship with a capacity of 25 passengers and 10 motorcycles, and the dimension of the ramp door used in this final project is L 1.50 m and B 1.50 m. The Principal dimension of the ship obtained in this research is Loa = 12.50 m, Lpp = 11.50 m, Lwl = 11.96 m, B = 5.75 m, B1 = 1.64 m, H = 1.8 m, T = 0.85 m, Cb = 0.56, Vs = 15 Knots. The results of this study provide a good idea of the modernization of a comfortable ferry fleet for this area.
Experimental Study on The Performance Characteristics of 4 Stroke CI Engine using Biodiesel Blend from Coconut Oil suardi suardi; Feston Sandi Paribang; Wira Setiawan; Amalia Ika Wulandari; Muhammad Uswah Pawara; Andi Mursid Nugraha Arifuddin; Alamsyah Alamsyah
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 13, No 1 (2024): March 2024
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v13i1.188-196

Abstract

To address the challenges faced by the government in the realm of petroleum imports, a promising strategy was adopted in the utilization of biodegradable and renewable sources of biodiesel, such as coconut oil. This research employed two distinct methodologies: Transesterification for biodiesel synthesis and a comprehensive assessment of fuel properties. Subsequently, an experimental phase assessed biodiesel within an engine environment to analysis performance metrics. Results showed that B30 (30% coconut oil, 70% diesel oil) has density of 0.850 g/cm³, B50 (50% coconut oil) at 0.861 g/cm³, and B100 (Pure coconut oil) at 0.893 g/cm³. The values differed from regional standards. As per ASTM D6751, B30 has a viscosity of 2.31 cSt, B50 3.22 cSt, and B100 is 7.02 cSt. Engine performance revealed B50 with the highest torque at 11.787 Nm, while B0 (pure hydrocarbon diesel) has a thermal efficiency of 38%. B0’s lowest SFC (Specific Fuel Consumption) is 261.12 g/kWh at 2000 watts load and 1000 rpm. Biodiesel coconut oil provided comparable power and torque (0.3% difference from B0) but consumed more fuel (21.6 % higher usage than B0). Keywords:  Biodiesel, Coconut oil, Engine performance, Fuel properties, Transesterification.
Co-Authors Alamsyah Alamsyah Alamsyah Andi Mursid Nugraha Arifuddin Anggit Dwi Putra Anggoronadhi Dianiswara Arman Fauzi Ayuna Noor aini Bimo Harseno Ramadhan Cindy Lionita Agusty Desinta Larasati Ashar Dimas Putra Wahid Rusparyansyah Erskine Simei Tonda Feston Sandi Paribang Guskarim Rompon Hijriah Hijriah Ivan Fadilah Lista Putri Adinda Rahmi M. Uswah Pawara Merlistyo Driantama Arwan Muhammad Yusuf Al-Hafidz Muhdar Tasrief Nurmawati Nurmawati Rizky Risaldo Rodlian Jamal Ikhwani Ryanda Bayu Laksana Samsu Dlukha N Septiany Tri Pangestu Suardi Suardi Taufik Hidayat Wira Setiawan