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All Journal KAPAL Jurnal Ilmu Pengetahuan dan Teknologi Kelautan Media Elektrik INOVTEK POLBENG Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Journal TEPAT: Teknologi Terapan untuk Pengabdian Masyarakat Majalah Ilmiah Pengkajian Industri Specta Journal of Technology EPI International Journal of Engineering International Journal of Marine Engineering Innovation and Research International Journal of Mechanical Engineering Technologies and Applications (MECHTA) Jurnal Riset Teknologi Pencegahan Pencemaran Industri Jurnal Pengabdian Kepada Masyarakat (PIKAT)

Andi Mursid Nugraha Arifuddin

Department Of Naval Architecture, Institut Teknologi Kalimantan

Author-ID : 2745715

Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts 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 Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mechanical Engineering Physics Public Health Social Sciences Transportation Other

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Study on Longitudinal Ship Strength Caused by the Placement of Beams and Girders on Upper Deck Side Andi Ardianti; Andi Mursid Nugraha; Ganding Sitepu; Hamzah Hamzah; Ade Khantari; Suandar Baso
EPI International Journal of Engineering Vol 1 No 2 (2018): Volume 1 Number 2, August 2018 with Special Issue on Railway Engineering
Publisher : Center of Techonolgy (COT), Engineering Faculty, Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25042/epi-ije.082018.12

The location of the beam and the deck girder of the ship can be effect on it is strength especially for the longitudinal strength due to the vertical wave bending moment. The objective of this study is to know the structural response of the ship due to vertical bending moment load on hogging and sagging conditions. The analysis is carried out by using Finite Element Method so-called ANSYSTM. The results shows that the stress occurring on the ship model with deck beam above the deck plate is larger than the ship model with deck beam under the deck plate. When the load with the variated of 0.2 x moment of vertical moment load, there is an increase of stress that occurs both on the deck area about 12% while on the bottom area about 0.98%. This study also conducted a stress comparison by using analysis methods with analytical methods. The results show that by the Stress differences that occur in the structure with the longitudinal deck beam and deck girder above are 14.1% on the deck and 7.1 on the bottom. Whereas in the structure with deck longitudinal deck eam and deck girder under there is a difference of 5.7% on the deck area and 3.5% in the bottom area of the ship. The stress that occur in both models have a difference that is not too far away and still under the permisible stress by the classification society so that both can be applied to the construction of a tanker.

Study on Transverse Strength of the Deck-Container Ships due to Laying All Containers on Deck Rosmani Munandar; Andi Ardianti; Ganding Sitepu; Andi Mursid Nugraha; Hamzah Hamzah; Muhammad Ichsan Hayatuddin
EPI International Journal of Engineering Vol 2 No 2 (2019): Volume 2 Number 2, August 2019 with Special Issue on Natural Disaster and Mitigat
Publisher : Center of Techonolgy (COT), Engineering Faculty, Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25042/epi-ije.082019.14

The strength of transversal structure of the ship has a great effect on the safety of ship. Shipswill experience conditions that affect the strength of the ships structure. A deck-container ships are the ships that all container are loaded on deck such as MV. Khendaga Nusantara series ships. The transversal strength of the ships is loaded mainly by the weight of cargolaying on deck.. This research aims to determine the transverse strength of a deck-container ship due to the all container loads on deck. The research was done by usingfinite element method throughmodeling transverse ship structure, the simulation is conducted by varying the amount and lay-out of containers on dec). The loads appliedto the model are side loads, bottomloads, and deck loads in according to BKI rules. The results shows that the stress that occurred in the web frame was 140,63 N/mm2due to the placement of the entire container on the deck(full loading). For ship structure response, a deformation of 2,86 mm occurred in the web frame area at maximum loading. Stress ratio that occurs in all ship’s structuredoes not exceed 1 in other words the working stress does not exceed the allowedstress according to BKI rules.

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.

Sosialisasi Standar dan Prosedur Keselamatan Pelayaran Wilayah Gugus Kepulauan Sangkarrang Kota Makassar Andi Chairunnisa Mappangara; Misliah Idrus; Mansyur Hasbullah; Suandar Baso; Abd Haris Djalante; Wihdat Djafar; Andi Mursid Nugraha; Andi Dian Eka Anggriani
JURNAL TEPAT : Teknologi Terapan untuk Pengabdian Masyarakat Vol 4 No 1 (2021): Kesadaran Sosial dalam Memperkuat Kehidupan Masyarakat dalam Era Pandemi
Publisher : Faculty of Engineering UNHAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25042/jurnal_tepat.v4i1.169

The safety guarantee for passengers and goods on local inter-island shipping has been overlooked, particularly in the Sangkarrang island group, Makassar City. The following conditions can be seen: the loading process that neglected ship capacity, the position of passengers and goods, fewer safety equipment pieces, the poor state of the pier, and ship worthiness. The government has issued a regulation on traditional shipping safety to protect ship operation activities, such as the requirement of conventional passenger ships, which is regulated the Regulation of the Director-General of Sea Transportation Number HK.103 / 2/8 / DJPL-17 dated 18 April 2017. The program socialization is expected to give awareness of shipping safety for users and operators. This activity's output is the increasing awareness of the community, especially service users and owners of sea transportation fleets who live in the Sangkarrang archipelago, Makassar City. Through this service community program, there will be a higher awareness of the importance of shipping safety. Hence, the operators must prepare minimal safety equipment such as life jackets, buoys, and fire extinguishers on the ship. Besides, service users and ship owners can consider the risk of shipping circumstances.

Analysis on Deck Ship Conversion SPOB to LCT 234 GT Using Finite Element Method Amalia Ika Wulandari; Andi Mursid Nugraha Arifuddin; Nurul Huda
International Journal of Marine Engineering Innovation and Research Vol 7, No 3 (2022)
Publisher : Institut Teknologi Sepuluh Nopember

Landing Craft Tank (LCT) is a sea transportation that serves to carry various types of cargo and heavy mining equipment and has a large size. In shipbuilding, the construction structure on the ship is not only designed to be able to accept the load from the cargo being transported but also must be able to withstand external loads caused by waves. With the modification of the Self-Propelled Oil Barge (SPOB) ship into a Landing Craft Tank (LCT), the calculation and planning process on the deck structure of the Landing Craft Tank (LCT) ship really needs to pay attention to the stress and strain strength in order to meet the safety factors that have been set in accordance with the applicable rules. This study aims to determine the maximum allowable stress value and the safety factor of the modified structure of the Landing Craft Tank (LCT) ship deck construction. The method used in this research is the finite element method. In this study uses 2 variations of the type of support "Tee Bar" and "Angle Bar". The results of this study the value of material deformation that occurs on the ship's deck with a variation of "Angle Bar" of 1.1497 mm and the value of material deformation that occurs on the deck of a ship with a variation of "Tee Bar" of 0.97269 mm. The maximum stress value acting on the ship's deck with the "Angle Bar" profile variation is 152.64 MPa and the maximum strain value is 0.00072686 mm/mm. The maximum stress value acting on the ship's deck for the "Tee Bar" profile variation is 147, 63 MPa and the maximum strain value is 0.000703 mm/mm. The value of the Safety Factor based on the criteria for the material on the ship's deck is obtained by comparing the yield stress value of the material and the maximum working stress must be greater than 1, then the deck construction with the variation of the "Angle Bar" profile is 2,326 and for the variation of the "Tee" profile type. Bar” 2,405 are categorized as safe. As for the Safety Factor based on BKI rules for the variation of the "Angle Bar" profile of 1,638 and for the variation of the "Tee Bar" profile of 1,693 it is categorized as safe. then the deck construction with the variation of the profile type "Angle Bar" is 2,326 and for the variation of the profile type "Tee Bar" 2.405 is categorized as safe. As for the Safety Factor based on BKI rules for the variation of the "Angle Bar" profile of 1,638 and for the variation of the "Tee Bar" profile of 1,693 it is categorized as safe. then the deck construction with the variation of the profile type "Angle Bar" is 2,326 and for the variation of the profile type "Tee Bar" 2.405 is categorized as safe. As for the Safety Factor based on BKI rules for the variation of the "Angle Bar" profile of 1,638 and for the variation of the "Tee Bar" profile of 1,693 it is categorized as safe.

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.

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

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.

Evaluation of Diesel Engine Performance Using Biodiesel from Cooking Oil Waste (WCO) Suardi Suardi; Wira Setiawan; Andi Mursid Nugraha; Alamsyah Alamsyah; Rodlian Jamal Ikhwani
Jurnal Riset Teknologi Pencegahan Pencemaran Industri Vol. 14 No. 1 (2023)
Publisher : Balai Besar Standardisasi dan Pelayanan Jasa Pencegahan Pencemaran Industri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21771/jrtppi.2023.v14.no1.p29-39

The increasing use of fossil fuels will cause the world's oil reserves to be depleted. In this case, it is necessary to increase the use of alternative renewable fuels, one of which is biodiesel waste cooking oil (WCO). The method used is an experimental test with a mixture of used cooking oil biodiesel and fuel. Before testing, the temperature of each fuel is increased to determine the effect of temperature on the density and viscosity values. The highest density value is found in B50 fuel at 26 °C, with a density of 0.854 gr/ml, while the lowest density is found in diesel fuel at 60 °C, with a density of 0.822 gr/ml. The highest viscosity value is found in B50 fuel at 26 °C and 60 °C, which is 3.26 cSt. After that, testing was carried out on a diesel engine, which produced the highest thermal efficiency value of 21.16% on B50 fuel with a temperature of 60 °C at 1000 rpm rotation and a load of 4000 watts. The lowest thermal efficiency of 6.43% was found in B50 fuel with a temperature of 26 °C at 800 rpm and a load of 1000 watts. The lowest consumption was found in B30 with a temperature of 60 °C at 1200 rpm, which was 420.78 gr/kWh. From the results of the tests that have been carried out, it can be concluded that the lower the density and viscosity of the fuel, the better the performance of the diesel engine on average. High temperatures effectively make the engine performance value better than normal temperatures (26 °C), and the performance of diesel engines is better with WCO fuel, especially in SFC.

Study of Towing Lug Strength in 300 feet Barge at Docking Process Andi Mursid Nugraha Arifuddin; Amalia Ika Wulandari; Mohammad Ardha Wiku Wicaksono
Kapal: Jurnal Ilmu Pengetahuan dan Teknologi Kelautan Vol 20, No 2 (2023): June
Publisher : Department of Naval Architecture - Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/kapal.v20i2.52624

Currently, the docking of ships or barges has been dominated by the airbag system by relying on the pull of the winch. For the Kalimantan area, the barge is generally pulled using a winch during docking. The structures that play a role when pulling the barge are towing brackets, slings, pulleys, and winches. In this paper, the towing lug will be the object of special discussion regarding its structural strength performance. The towing Lug model used when towing is in the form of an asymmetrical lobe. Two towing brackets are placed on the left and right sides of the bow barge. This towing lug sometimes damaged during towing, so it is necessary to simulate the strength of the towing lug using the finite element method (FEM). A 300 feet Barge is simulated with a total weight (W) of 1200 Tons. The towing lug design structure is made with 3 kinds of models with a varying number of layers and plate thickness. The towing lug design sample used in the existing shipyard is called model 1. While the other modifications to the 2 towing lug structures are called model 2 and model 3. Towing brackets are simulated using a computer with the help of Ansys software. The towing bracket's tensile angle is also varied to obtain a more attractive strength value. The variations of the pull angles used in this simulation are 80°, 83°, 85°, 87° and 90°. From the simulation results, it is obtained that the deformation values in each model show an insignificant level of change. In general, the simulation results also show stress values for each variation that tend to be safe and can be applied when the barge is towed to the dry dock. All equivalent stress values in each condition are still below the material yield stress. However, among the various simulations there are 2 types of conditions that experience stress values that exceed the class allowable stress

Hull Strength Investigation of Traditional Boat “Sandeq” Using Numerical Experiment: English Andi Mursid Nugraha Arifuddin; Alamsyah; Muhammad Uswah Pawara; Rodlian Jamal Ikhwani; Agus Budianto; Irfan Fadillah
SPECTA Journal of Technology Vol. 6 No. 2 (2022): SPECTA Journal of Technology
Publisher : LPPM ITK

Sandeq is an Indonesian traditional boat that is built instead of applying principal spiral design and technical calculation in its design and construction. Its construction relies on the inherited skills of the builders. This study aims to investigate the structural strength of the boat with numerical experiments by computer software that applying the finite element method (FEM). Longitudinal and transversal hull strength will be examined for four Sandeg models. The computational model of the boat hull has been designed and run with varieties of hull lengths using the software. The simulation results showed that the obtained longitudinal and transversal stresses were less than the allowable stress of the material based on the classification rules. In the transversal strength analysis, the ratio of working stress to material stress was 6,37%, 7,20%, and 5,98% on the sandeq A, B, and C respectively. As for longitudinal stress in hogging condition, the ratio was 2,77% 3,35%, 0,93%, and 0,72% on the sandeq A, B, C, and D respectively. for sagging condition, the ratio was 2,11%, 2,49%, 0,52%, and 0,69%.

Co-Authors Abd Haris Djalante Ade Khantari Adhy Rahmat Agus Budianto Alamsyah Amalia Ika Wulandari Amalia Ika Wulandari Amalia Ika Wulandari Andi Ardianti Andi Ardianti Andi Chairunnisa Mappangara Andi Dian Eka Anggriani Anggit Dwi Putra Desinta Larasati Ashar Djafar, Wihdat Erskine Simei Tonda Faisal Mahmuddin Feston Sandi Paribang Ganding Sitepu Ganding Sitepu Guskarim Rompon Hamzah Hamzah Hamzah Hamzah Hijriah Irfan Fadillah Lista Putri Adinda Rahmi M. Uswah Pawara Mansyur Hasbullah Misliah Idrus Mohammad Ardha Wiku Wicaksono Muhammad Ichsan Hayatuddin Muhammad Zulkifli Nurul huda Rizky Risaldo Rodlian Jamal Ikhwani Rosmani Munandar Ryanda Bayu Laksana Sherly Clara Suandar Baso Suandar Baso Suardi Suardi Taufik Hidayat Taufik Hidayat Widya Yulia Astin Wira Setiawan

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