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All Journal KAPAL Jurnal Ilmu Pengetahuan dan Teknologi Kelautan INVOTEK: Jurnal Inovasi Vokasional dan Teknologi Turbo : Jurnal Program Studi Teknik Mesin INOVTEK POLBENG JRST (Jurnal Riset Sains dan Teknologi) SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Jurnal Kelautan Nasional Majalah Ilmiah Pengkajian Industri Specta Journal of Technology EPI International Journal of Engineering Jurnal Penelitian Enjiniring Fakultas Teknik Unhas Jurnal Abdi Insani International Journal of Marine Engineering Innovation and Research International Journal of Mechanical Engineering Technologies and Applications (MECHTA) Computational and Experimental Research in Materials and Renewable Energy (CERiMRE) Zona Laut : Jurnal Inovasi Sains dan Teknologi Kelautan JMES The International Journal of Mechanical Engineering and Sciences Maritime Park: Journal Of Maritime Technology and Socienty International Journal of Metacentre PIKAT Riset Sains dan Teknologi Kelautan Jurnal Riset & Teknologi Terapan Kemaritiman Indonesian Journal of Maritime Technology or abbreviated (ISMATECH) Media Elektrik

M. Uswah Pawara

Institut Teknologi Kalimantan

Author-ID : 1840614

Aerospace Engineering Agriculture, Biological Sciences & Forestry Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Nursing Physics Public Health Social Sciences Transportation Other

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FATIGUE LIFE ANALYSIS OF RAMP DOOR FERRY RO-RO GT 1500 USING FINITE ELEMENT METHOD Alam, Alamsyah; A. B. Mapangandro; Amalia Ika W; M U Pawara
Majalah Ilmiah Pengkajian Industri Vol. 15 No. 1 (2021): Majalah Ilmiah Pengkajian Industri
Publisher : Deputi TIRBR-BPPT

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

Ro - Ro Ferry is equipped with a connecting door between the port and the ship. The ramp door experiences load during loading and discharging of the rolling cargo. This repetitive load may cause fatigue failure. The structure of the ramp door should withstand this load. Therefore, The ramp door should be properly designed to ensure the structural integrity of the ramp door. The purpose of this research is to analyze the maximum stress and the Fatigue life of the bow ramp door. The method used is the finite element method. The given loads are several types of vehicles that are commonly transported by the ship. The given load case is the point load working at the girder plate and between the girder plate. Based on the simulation results with the given point load, the maximum stress is identified located between the girder for the large truck case with 397.02 MPa, while the minimum stress located at the girder for sedan car with 43.93 MPa. As for the fatigue life of the bow ramp door construction. it is 1.17 ~ 398.64 years, and the load cycle is 5.35 x 104 ~ 9.05 x 106 cycle. Keywords : Bow Ramp Door; Stress; Fatigue Life; Finite Element; Ferry

The Strength and Fatigue Life analysis of Sedan Car Ramp of The Ferry Ro-Ro 5000 GT Using Finite Element Method Alamsyah, Alamsyah; Nurcholik, Samsu Dlukha; Suardi, Suardi; Pawarah, M U; Jumalia, Jumalia
Kapal: Jurnal Ilmu Pengetahuan dan Teknologi Kelautan Vol 18, No 2 (2021): June
Publisher : Department of Naval Architecture - Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/kapal.v18i2.37518

The Ferry Ro-Ro 5000GT has three levels of car deck that are connected by internal ramps. Two issues that have to be paid attention during the operation of the internal ramp there are the strength capacity and the design fatigue life of the internal ramp structure. The purpose of the research is to determine the strength and fatigue life of the internal ramp construction. The method used the Finite Element Method using a static load by load case of point load at top girder and between girders. Results of the research detected the maximum stress value is in the load case of the point load (three sedan car) at between of the girder is 52.143 MPa with the fatigue life is 44.47 years with the load cycle is 7300000 cycle while the minimum stress value detected at the load case of the point load (two sedan cars) at top girder is 34.199 MPa with the fatigue life is 195.92 years with the load cycle is 50000000 cycle. For the safety factor, ramp construction 6.08 ~ 10.38. The safety factor value above is still in safe condition because the value is SF > 1.

Investigating the Local Stress of Car Deck Ro-Ro 5000 GT Alamsyah alamsyah; Ahmed Reza Falevi; Amalia Ika Wulandari; Muhammad Uswah Pawara; Wira Setiawan; Andi Mursyid Nugraha Arifuddin
EPI International Journal of Engineering Vol 4 No 1 (2021): Volume 4 Number 1, February 2021
Publisher : Center of Techonolgy (COT), Engineering Faculty, Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25042/epi-ije.022021.08

A deck construction must be strong enough that it will not suffer structural damage if it works under a given load. In this case the strain stress becomes very important from the strength of the deck, as for one that affects the strength of the deck construction, one of which is the stiffener distance. This study aims to analyze the maximum strain stress on the deck of the Ferry Ro - ro. The method used is Finite Element Method (FEM) by varying the stiffener distance in the deck construction. The research results obtained, namely the variation of the stiffener distance of 600 mm. 285.5 N/mm2 and the maximum strain released is 1.76 x 10-3 mm, at a variation of 700 mm stiffener distance the maximum stress released is 378,075 N/mm2 and the maximum strain released is 1.77 x 10-3 mm, at a stiffener distance variation 800 mm the maximum stress released is 383,737 N/mm2 and the maximum strain released is 1.78 x -3 mm, at 900 mm stiffener distance variations the maximum stress is 389,188 N/mm2 and the maximum strain released is 1.79 x 10-3 mm, at variations in distance stiffener 1000 mm the maximum stress released is 425,388 N/mm2 and the maximum strain released is 1.8 x 10 -3 mm, The value of strain increasingly increases followed by the farther distance of the stiffener equal 0.6%, and the stress value is at a variation increasingly increases followed by the farther distance of the stiffener equal 12.24%.

A Finite Element Analysis of Structural Strength of Ferry Ro-Ro’s Car Deck M. Uswah Pawara; Alamsyah Alamsyah; Rodlian Jamal Ikhwani; Ade Ray Siahaan; Andi Mursyid Nugraha Arifuddin
invotek Vol 22 No 1 (2022): INVOTEK: Jurnal Inovasi Vokasional dan Teknologi
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/invotek.v22i1.959

Ferry Ro-Ro is a type of ship used to carry passengers and vehicles. This ship has several decks such as navigation decks, passenger decks, and car decks. The car deck is subject to a heavy load as it should accommodate vehicle loads. This study aims to conduct a finite element analysis to determine the stress and deformation experienced on the car deck of the Ferry Ro-Ro and determine the safety factor based on BKI (Indonesian Classification Bureau). The method used in this study is the Finite Element Method (FEM) which has been applied in the finite element based-applications namely Ansys Workhbench. The simulations are carried out using the software by varying the thickness of the car deck’s plate, the plate is subjected to pressure loads which are car loads accommodated by the car deck. Moreover, the fixed support is applied in the deck during the simulation. Based on the simulation results of variations of 90, 100, and 110% plate thickness. It is obtained that the smallest plate experienced maximum stress and the obtained safety factor of all plate thickness variations was satisfied the BKI Standard.

The Fatigue Life Assessment of Sideboard on Deck Barge Using Finite Element Methods Alamsyah Alam; Amalia Ika Wulandari; Nugroho Septianda Oktavaro; M U Pawarah; Muhammad Riyadi
Majalah Ilmiah Pengkajian Industri Vol. 16 No. 1 (2022): Majalah Ilmiah Pengkajian Industri
Publisher : BRIN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29122/mipi.v16i1.5201

A Deck barge is a type of ship that has a flat hull used to transport large amounts of cargo such as wood, coal, sand, etc. The deck barge uses retaining walls to transport bulk loads on deck known as sideboards which can collapse due to fatigue life. The purpose of this research is to determine the maximum stress and fatigue life of the sideboard construction based on the height of the bulk load on the sideboard using coal as the bulk load. The method used in this research is the finite element method with a high load case of coal loading to the sideboard is 2.24 m, 2.60 m, and 2.96 m. The results showed that a high load case of 2.24 m detected a maximum stress value of 79.25 MPa and a fatigue life of 81.16 years with 10 x 105 cycles. Load case with a high load of 2.60 m detected a maximum stress value of 110.11 MPa and a fatigue life of 24.72 years with 3.53 x 105 cycle. For a high load case of 2.96 m, a maximum stress value of 146.80 MPa was detected and a fatigue life of 9.28 years with 2 x 105 cycle. There is an increasing stress value by the rise of the load height against the sideboard and there is a decrease in the fatigue life in the construction. Keyword: Barge, Fatigue Life. Sideboard, Stress.

Experimental Study of Aluminium Joint Plate Between AA5052 with AA5083: Application on Hull Vessel Material Andi Mursid Nugraha Arifuddin; Taufik Hidayat; Muhammad Uswah Pawara; Muhammad Zulkifli
International Journal of Marine Engineering Innovation and Research Vol 7, No 2 (2022)
Publisher : Institut Teknologi Sepuluh Nopember

Generally, the planning of the material arrangement of the aluminum hull plate is always carried out at an early stage to obtain a material formation that has good economic value. One of the strategies used to obtain economic value in shipbuilding is the use of various grades of plate material. The grade of aluminum material that is often used on ships is the 5xxx series. Where this series has many grades that can be used as ship hull material options. The price difference for each grade of aluminum material for ships is a very influential variable on the economic value of shipbuilding. However, before being applied to shipbuilding, it is necessary to test the feasibility of aluminum plate connections with variations in plate grade. The aim is to provide clear information regarding the technical feasibility of selecting material grades. Therefore, in this study, a simulation will be carried out to test the strength of the plate connection with variations in the grade of aluminum material using the experimental method. The plate joint test is carried out using only the Tensile test in the laboratory with reference to the ASTM rules. The grades of aluminum plate materials used are 5052 and 5083. Connection formations are between 5052-5052, 5083-5083, and 5052-5083. From the test results, the largest average yield stress value is 202.34 N/mm2 at the variation 5083-5083, the maximum average ultimate stress value is 261.70 N/mm2 at the variation 5083-5083. For the variation of the 5052-5083 plate connection, it still has a yield stress value that is greater than the basic yield stress of the material, namely 142.97 N/mm2. Where the percentage value of the achievement level of yield strength is 113.6% of the basic yield stress value of the material based on BKI rules. However, in achieving the ultimate stress value, it is still lower than the ultimate basic stress of the BKI rules standard material, which is 193.88 N/mm2. Where the percentage value of the level of ultimate strength achievement is 70.5% of the ultimate basic stress value of the BKI rules standard material.

FATIGUE LIFE ANALYSIS OF RAMP DOOR FERRY RO-RO GT 1500 USING FINITE ELEMENT METHOD Alamsyah Alam; A. B. Mapangandro; Amalia Ika W; M U Pawara
Majalah Ilmiah Pengkajian Industri Vol. 15 No. 1 (2021): Majalah Ilmiah Pengkajian Industri
Publisher : BRIN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29122/mipi.v15i1.4744

Patrol Ship Design to Guard the Natuna Seas Suardi Suardi; Amalia Ika Wulandari; Muhammad Uswah Pawara; Alamsyah Alamsyah; Taufik Hidayat
International Journal of Marine Engineering Innovation and Research Vol 7, No 3 (2022)
Publisher : Institut Teknologi Sepuluh Nopember

Natuna is one of the regencies in the Riau Archipelago Province, the area of Natuna Regency is 224,684.59 km2 with a land area of 2,000.85 km2 and an ocean area of 222,683.74 km2. According to the Ministry of Maritime Affairs and Fisheries, Natuna occupies the first position for the purpose of exporting fishery products from the SKPT location (Integrated Marine and Fishery Centers in Small Islands and Border Areas), namely marine fisheries resources reaching more than 1 million tons per year. The extent of Natuna waters and the large potential of existing capture fisheries resources cause the Natuna waters to be included in the Fisheries Management Area (WPP 711) which is prone to illegal fishing activities. It has been proven recently that in the waters of North Natuna there are coast guard ships from foreign countries escorting fishing vessels belonging to their countries that are carrying out illegal, unreported, and unregulated fishing activities. The purpose of this research is to design a patrol ship to carry out security missions around the Natuna waters. The method used in this design is the Parent Design Approach method. This method is known in designing ships, namely by taking a comparison ship that has the same characteristics as the ship to be designed. The main dimensions of the ship obtained in this final project are Lwl = 50.2 m, B = 9.32 m, H = 4.45 m, T = 3.5 m, Vs (max) = 25 Knots, Crew = 40 Indonesian navy. Armaments used on this ship are Oto-Melara 76/62SR 76 mm, Oerlikon Millennium 35 mm, RWS Machine Gun, and SS1-V1 Kal hand rifle. 5.56 mm.

The Influence of Padeye Placement on Ship Block Lifting Andi Mursid Nugraha Arifuddin; Muhammad Uswah Pawara
Majalah Ilmiah Pengkajian Industri Vol. 16 No. 2 (2022): Majalah Ilmiah Pengkajain Industri
Publisher : BRIN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29122/mipi.v16i2.5255

Nowadays, steel ship construction in Indonesia is dominated by the hull block construction method. This method can reduce man-hours as the ship is manufactured by a division of the hull into several sections/blocks; here, it can be worked in parallel. Once work is finished on these blocks and then proceeding to the main hull for assembling, the lifting operation is performed on the blocks during this erecting process. Lifting of ship blocks must be planned safely to avoid damage. One of the items that must be considered is the position of the padeye. The placement or installation of the padeye in the block during the lifting operation plays a vital role in the deformation and working stress of the block structure. Consequences if this is not observed, which van cause misalignment in the welding join path on ship bloks due to excessive plastic deformation and stress. Therefore, this study aims to simulate the placement of a padeye that results in minimum deformation and structural stress. The method used in this research is the stiffness method applied in computer programs. In this studied, it had been recorded that the structure on the ship blok is deformed and stressed at each padeye position. Based on the simulation from 23 positions of the padeye, the optimal position of the pad eye is at position 10 in simulation 2 with deformation of x, y, and z coordinates which are 7 mm, 2 mm, and 7 mm, respectively. Generrally, In this case shown the deck girder and longitudinal beam structure is dominantly subjected to high deformation and stress in several position. Keyword: Padeye, Ship Block, Lifting, Deformation, Stress.

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

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.

Co-Authors A. B. Mapangandro A. B. Mapangandro Abdul Basiq Zainal Abidin Abidin, Abdul Basiq Zainal Abiyyu Harly Saputra Ade Ray Siahaan Adhy Rahmat Agus Budianto Ahmad Razzan Ahmed Reza Falevi Akhir, Anshar Yaumil Alam, Alamsyah Alamsyah Alamsyah Alamsyah - Alamsyah Alam Alamsyah Alam Alamsyah Alamsyah Alamsyah Alamsyah Alamsyah alamsyah Alamsyah Alamsyah Alamsyah Alamsyah Alamsyah, Alamsyah Aldo Pangestu Alfawan Alfawan Alwi, Muhammad Rusdy Amalia Ika W Amalia Ika W Amalia Ika Wulandari Amalia Ika Wulandari Amalia Ika Wulandari Amalia Ika Wulandari Amalia Ika Wulandari Amalia Ika Wulandari Andi Ardianti Ardianti Andi Mursid Nugraha Arifuddin Andi Mursid Nugraha Arifuddin Andi Mursyid Nugraha Arifuddin Andi Mursyid Nugraha Arifuddin Arifuddin, Andi Mursid Nugraha Astin, Widya Yulia As’ad, Miftachus Surur Aung Ye Kyaw Bancin, Sutomo Baratau, Irentya Anugra Budi Prayitno Cahyani, Alviana Eka Dianiswara, Anggoronadhi Dimas Prayoga Dwiyanti, Diva Syahirah Elfin Zulmi Azhar Faisal Mahmuddin Faisal Mahmuddin Faisal Mahmuddin Faisal Mahmuddin Feston Sandi Paribang Fiesta Olivia Fitri, Ade Gom Gom Mulia Yehezkiel Tambunan Hapsari, Dessy Purwita Harifuddin Harifuddin Hariyono Hariyono Hariyono, Hariyono Hijriah Hijriah Hijriah, Hijriah I Putu Arya Kusuma Ikhwani, Rodlian Jamal Indah Sari, Fitria Irfan Fadillah Jumalia, Jumalia Jumardi Jumardi Kumandang, Niti Gede Kustiwansa, Harlian Lumbantoruan, Hendra Eliakim Lumenteri, Fido Fortunatus Luthfi Abdurrahman Abdurrahman Manik, Aljoiden Maulana, Mohammad Khafid Moch Purwanto mubarak, azhar aras Muhammad Reza Fachrul Jaya Muhammad Riyadi Muhammad Rusdy Alwi Muhammad Syarif Muhammad Yusuf Al-Hafidz Muhammad Zulkifli Muhdar Tasrief Mursid Nugraha Arifuddin Musa Lolo Musyarofah Musyarofah Naufal, Daffa Ahmad Ningrat, Andi Nizam, Syahrul Ni’matus Sholihah Nugraha Arifuddin, Andi Mursid Nugraha, Andi Mursid Nugroho Septianda Oktavaro Pria Adi Pengestu Rachmianty, Andi Raditya, Muhammad Yogi Rajagukguk, Pernando Anju Ramadana, Andi Najwa Ramadhani, Rizky Rara Gusnia Nurulhaini Reynadi Firzy Irawan Rifai, Muhammad Rizky Risaldo Rodlian Jamal Ikhwani Rodlian Jamal Ikhwani Rodlian Jamal Ikhwani S.Pd. M Kes I Ketut Sudiana . Samsu Dlukha N Setiawan, Wira Sherina Fitri Hariani Sherly Clara Siagian, Firman Veryvicasi Vernando Simatupang, Gusrawati, Sander V S Sitorus, Chris Jeremy Verian Suandar Baso Suardi Suardi Suardi Suardi, Suardi Sultan Mahmud Cakasana Syadzali, Abdul Mujib Syerly Klara Syerly Klara Syerly Klara Tasrief, Muhdar Taufik Hidayat Taufik Hidayat Tobing, Andreyano Yosefan Lumban Widya Yulia Astin Wijaya, Vibra Wira Setiawan Wira Setiawan Wira Setiawan Wira Setiawan Wulandari, Amalia Ika wulandari, amalia ika

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