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All Journal Otopro Proceedings Conference on Marine Engineering and its Application PROCEEDINGS CONFERENCE ON DESIGN AND MANUFACTURE AND ITS APPLICATION
Mohamad Hakam
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Control & Systems Engineering Education Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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PERANCANGAN GROUNDING TANGKI Mohamad Hakam, ; Aditya Ayuningtyas, ; Wibowo Arnin,
Otopro Vol 6, No 2 (2011)
Publisher : Otopro

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           PT.Pertamina EP Field Cepu merupakan perusahaan yang menyelenggarakan kegiatan usaha di sektor hulu bidang minyak dan gas bumi, meliputi eksplorasi dan eksploitasi. Dalam operasinya PT.Pertamina EP Field Cepu mengumpulkan minyak bumi yang dihasilkan dari sumur – sumur pengeboran dalam tangki – tangki yang ada pada Stasiun Pengumpul (SP). Stasiun Pengumpul 3 distrik 2 merupakan Stasiun Pengumpul yang belum dilengkapi dengan sistem grounding tangki. Berdasarkan tingkat bahayanya perlu adanya perancangan grounding tangki yang baik sebagai upaya mengurangi resiko bahaya sambaran petir. Perancangan grounding dilakukan dengan menentukan jenis dan jumlah elektrode berdasarkan PUIL 2000. Dari hasil perancangan ini, diketahui bahwa untuk stasiun pengumpul 3 dengan luas 4039,32 m2 Jenis elektrode yang digunakan untuk grounding tangki adalah elektrode batang sejumlah 4 elektrode dengan masing – masing panjangnya 5 m.            PT.Pertamina EP Cepu Field is a company which carry on business in the upstream oil and gas, including exploration and exploitation. In operation PT.Pertamina EP Cepu Field collecting oil produced from wells drilling in the tanks that is at Station Collector (SP). District 2 Station Collector 3 is a station that has not been equipped with a tank grounding system. Based on the level of danger necessary to design a good grounding tank to reduce the hazards of lightning strikes. The design of the grounding is done by determining the type and number of electrodes based PUIL 2000. From the results of this design, it is known that for the station collector 3 with an area of ​​4039.32 m2 type of electrodes used for grounding tank is a 4 electrode rod electrode with each length of 5 m
PENGARUH EVAPORATOR PADA EXHAUST SEPEDA MOTOR KARBURATOR TERHADAP SI ENGINE BAHAN BAKAR DUAL FUEL BENSIN-UAP BIOETANOL Fahril Muhamad; George Endri Kusuma; Mohamad Hakam
Proceedings Conference on Marine Engineering and its Application Vol 3 No 1 (2020): Conference on Marine Engineering and its Application
Publisher : Politeknik Perkapalan Negeri Surabaya

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Penambahan bahan bakar berbasis nabati khususnya bioetanol dari penelitian sebelumnya memberikanefek proses pembakaran makin sempurna, sehingga mesin akan menjadi lebih bersih dan emisi gas buang menurunmenjadi ramah lingkungan. Penggunaan bioetanol yang mempunyai oktan tinggi dapat menjadikan akselerasi mesinlebih ringan dan cepat. Dilakukan eksperimen menguapkan bioetanol dengan mendesain evaporator pada exhaustsepeda motor Supra X 125 cc karburator tahun 2008 untuk menciptakan alternatif bahan bakar terbarukan denganmemanfaatkan energi panas dari exhaust (regenerasi energi). Dilakukan dynotest performa SI Engine sebelummodifikasi dan sesudah modifikasi dengan variasi bukaan katup uap bioetanol 30°, 60°, 90°(fully open throttle)dengan variasi RPM yang dinaikkan dengan interval 1000 dimulai dari RPM 5000 hingga RPM 9000. Pengujian SIEngine dengan evaporator pada exhaust sepeda motor dual fuel bensin-uap dapat diterapkan dan layak jalan untukdioperasikan. Hasil eksperimen menggunakan evaporator ini diambil data optimum pada variasi bioetanol bukaankatup 60°, dengan peningkatan daya dan torsi sebesar 9 HP menjadi 9,4 HP, untuk torsi dari 7,98 Nm menjadi 8,3Nm pada RPM 8000. Angka efisiensi termal kendaraan mengalami penurunan sebesar 25,6%, dari 90,3% menjadi65,3% . Untuk data emisi gas buang mengalami penurunan CO sebesar 10%, HC dengan nilai 51%, kemudianmengalami peningkatan CO2sebesar 46,3%
Desain dan Fabrikasi Mesin Potong Plastik dengan Sistem Pneumatic Berkapasitas 6 Roll Wega Tama Setya; Mohamad Hakam; Dhika Aditya Purnomo
Proceedings Conference On Design Manufacture Engineering And Its Application Vol 5 No 1 (2021): Conference on Design and Manufacture and Its Aplication
Publisher : Proceedings Conference On Design Manufacture Engineering And Its Application

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The development of science and technology from time to time has an impact on the industrial sector. Many industries use manufacturing technology in their production processes. PT. Palma Eiko Pack is a plastic forming and custom forming packaging production company and can serve orders in large quantities. In the production process, especially in the process of cutting plastic rolls into certain sizes, it is still done manually so it takes a long time. One plastic roll with a length of 50 m and a width of 1.4 m requires 3 people for the plastic cutting process and in 1 day is able to cut 5 plastic rolls, while the company targets at least 1 day to be able to cut 15 plastic rolls. From these problems, there is a solution to make a machine that is able to work safely, quickly, and does not require a large amount of power with a compressor or air pump as the main driver. The machine is designed simply so that workers can operate the machine easily. The material of the machine also uses materials that are easy to find. Making a machine design concept using the Ulrich method, the first step is to identify theproblem and formulate the problem to choose the concept used. After analyzing the engine frame. Furthermore, the design design is carried out to become a machine. After the machine is finished, it is tested to find out whether the machine is able to work optimally to meet the company's target.
Pemanfaatan Getaran Mesin Sebagai Sumber Energi Alternatif Shivy Aura Adhyatma; Mohamad Hakam; Agus Khumaidi
Proceedings Conference On Design Manufacture Engineering And Its Application Vol 6 No 1 (2022): Conference on Design and Manufacture and Its Aplication
Publisher : Proceedings Conference On Design Manufacture Engineering And Its Application

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Energy cannot be created or destroyed. Transformation of energy is become one way to complete the renewable energy. In oftentimes machine vibrations is considered as interference, but the vibration energy can be convert into electrical energy. This research was conducted to design a machine vibration power plant that uses a mechanical system utilizing vibration energy from industrial machines. Ulrich method is used to determine the design concept. An energy conversion structure has been designed carrying the concept of a mechanical system, making eccentric motion using an intermediary plate system as a channel for engine vibration to cause up and down motion and supported by a transmission system into rotary motion to rotate a generator/dynamo as a generator of electricity. The vibrations generated from industrial machines can be utilized or converted into electrical energy. It is noted that the design of the energy conversion structure with a mechanical crankshaft system has not been able to convert vibrations into electricity according to the plan. The replacement of the material used in the crankshaft energy conversion structure is expected to improve the performance of the energy conversion tool. The engine vibration power plant is offered with a pump concept that can convert vibrations into electrical voltage. The result of the voltage is 0.035V and the resistance is 381.5 Ohms.
Analisis Tegangan dan Besar Defleksi pada Wall Jib Crane Kapasitas SWL 1 Ton Menggunakan Metode Elemen Hingga (Studi Kasus PT. Adiluhung Sarasanegara Indonesia) Laila Radina Ningtyas; Mohamad Hakam; Widya Emilia Primaningtyas
Proceedings Conference On Design Manufacture Engineering And Its Application Vol 6 No 1 (2022): Conference on Design and Manufacture and Its Aplication
Publisher : Proceedings Conference On Design Manufacture Engineering And Its Application

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Analysis of the construction of a wall jib crane with a capacity of 1 ton was carried out by comparing the materials ASTM A36, ASTM A515, AISI 1008. The analysis was carried out using the finite element method with Fusion 360 software. From the results of the analysis, the material with the smallest deflection value is AISI 1008 of 9.98 mm with a von misses stress of 94,187 MPa, while in ASTM A36 and ASTM A515 the deflection value is 10.08 mm. The accumulated stresses and deflections that occur in each planned construction, both from manual calculations and simulations are declared safe, because the stress and deflection values that occur in the construction of the jib crane wall are below the allowable stress and deflection values. Based on the results of the design that has been carried out, the AISI 1008 material was chosen because it has a high safety ratio for wall jib crane construction.
Pengaruh Kombinasi Serat Karbon-Serat Sabut Kelapa Terhadap Kekuatan Impact dan Bending pada Aplikasi Helm Sepeda Motor Fajar Andi Nugroho; Mohamad Hakam; Widya Emilia Primaningtyas
Proceedings Conference On Design Manufacture Engineering And Its Application Vol 6 No 1 (2022): Conference on Design and Manufacture and Its Aplication
Publisher : Proceedings Conference On Design Manufacture Engineering And Its Application

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Coconut coir fiber is a fiber derived from coconut shell waste which has economic value, is easy to process and easy to develop for the environmentally friendly composite industry, especially for motorcycle helmets. Carbon fiber is a synthetic fiber made of polyacrylonitrile, a study was conducted to see the response of variations in coconut fiber and carbon fiber layers on the impact and bending strength of composites used for motorcycle helmet applications. The use of synthetic carbon fiber in this composite provides several advantages including high tensile strength, relatively lighter weight, and low thermal expansion so that when combined with natural fibers, in this case coconut fiber, it will increase its structural strength. In this study, the bending strength of 50.765 MPa and impact strength of 0.038 J/mm2 were produced. The two highest values from each of these tests were obtained from the composite composition using 3 layers of carbon fiber and 2 layers of coconut fiber.
Penerapan Metode RCM II untuk Meningkatkan Performa pada Strainer Candra Apriyanto Sanjaya; George Endri Kusuma; Mohamad Hakam
Proceedings Conference On Design Manufacture Engineering And Its Application Vol 4 No 1 (2020): Conference on Design and Manufacture and Its Aplication
Publisher : Proceedings Conference On Design Manufacture Engineering And Its Application

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Missile Fast Boat (KCR 60M) with the type of patrol boat and Hospital Assistance Ship (BRS). In some maintenance processes carried out on the ship system, counted on average carried out for 2 weeks. But that is done for all different equipment and machinery. The topic taken was performance analysis and maintenance proposals for the strainer. Strainer is a support component that functions as an outside water filter that will enter the ship system, because the strainer is the initial entrance of water and easy to do checks and can extend the life time of components such as pumps and heat exchangers that exist in the system. And to analyze all of these things use the Failure Mode and Effect Analysis (FMEA) and Realibility Centered Maintenance (RCM) methods and the data used such as TTF (Time to Failure) and TTR (Time to Repair). The application of this method is obtained the right maintenance time and more effective. The application of this method to each system on the ship is a sea chest system, sea water cooler system, ballast system, getting an additional maintenance time of 88 hours or about 3 days for the maintenance deadline. In the fuel oil transfer & purifying system, the maximum maintenance time limit is 982 hours or 40 days. As for the oil fill & transfer system to get results which is a time difference of 4.208 hours or about 5 months earlier than company data, it can be a suitable scheduling proposal for each of these systems. And the maximum fouling factor for the strainer component is 3.21 mm. As a result, the life time possessed by each machine component will be longer and its performance becomes optimal especially for strainer components that don’t have a fixed maintenance schedule.
Analisa Keandalan Struktur pada Container Crane SWL 40 Ton Menggunakan Metode Monte Carlo Cahyo Dwi Satria; Adi Wirawan Husodo; Mohamad Hakam
Proceedings Conference On Design Manufacture Engineering And Its Application Vol 4 No 1 (2020): Conference on Design and Manufacture and Its Aplication
Publisher : Proceedings Conference On Design Manufacture Engineering And Its Application

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In its operation, container crane are significantly affected by usage and environmental conditions. The structure of the container crane must be able and show the best performance in overcoming the loading and environmental conditions. This study aims to determine the reliability of the container crane structure of the container crane type quay crane with SWL 40 tons. The method used is perform a static analysis by calculating the value of von mises stress and deflection due to loading condition. The loads use variation, 60% SWL, 100% SWL, and 110% SWL. To calculate the reliability of the structure, the author uses the Monte Carlo method. With the help of CATIA V5R21 software to model and perform FEM analysis of container crane structures and the result compared with manual calculation. The error rate between software and normal calculation is 6,86 %. The critical point of stress occurs at boom. The results of the analysis of the reliability of the container crane structure using Monte Carlo show that the reliability value of the structure after 21 years is decreasing.
Rancang Bangun Alat Bantu Meja Lift Otomatis Pengangkut Silinder Menggunakan Sistem Linear Aktuator Elektrik Al'ma Arif Arrahman; Mohamad Hakam; Tri Andi Setiawan
Proceedings Conference On Design Manufacture Engineering And Its Application Vol 5 No 1 (2021): Conference on Design and Manufacture and Its Aplication
Publisher : Proceedings Conference On Design Manufacture Engineering And Its Application

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CV. Setia Abadi Printing is a company that engaged in the packaging industry. The machine used by this company is a rotogravure printing machine, most of which are desingned and made personally by the owner of the company. The cylinder component is an important part of the rotogravure printing machine because in the production process the cylinder component is in direct contact with the production material, namely plastic. In transporting cylinder components, employees still use manual labor from the workshop area to the production area with a distance of 350 meters and the weight of the cylinder components reaches 50 kg, so it is very ineffective and waste a lot of manpower. The method used by the author is the Ulrich method through the selection of several design concepts, the design of which is assisted by CAD software for drawing, fabrication, assembly of machine components and tool testing to determine the production results of the tool. Based on the results of planning and design that has been done, the dimensions of the tool with the main dimension 1395 mm x 580 mm x 1092 mm. For drive is designed using a linear system of electric actuators. In the prototype test the automatic lift table tool cylinder transporter using a linear system of electric actuators was able to carry a load of 50 kg and lifted as high as 1 meter.
Rancang Bangun Exhaust System pada Skuter Roda Tiga Minimalis Syahrial Virdan Ichwanushofa; Mohamad Hakam; Tri Andi Setiawan
Proceedings Conference On Design Manufacture Engineering And Its Application Vol 5 No 1 (2021): Conference on Design and Manufacture and Its Aplication
Publisher : Proceedings Conference On Design Manufacture Engineering And Its Application

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Commercial vehicles are considered to be able to facilitate the logistics process, for example three-wheeled commercial vehicles, but on the other hand the less affordable prices make people spin their brains to modify makeshift vehicles to be used as commercial vehicles by ignoring safety, security, or comfort. Therefore, a minimalist three-wheeled scooter was created to reduce prices but not reduce safety, features, and comfort for the rider or those around him so that they can compete with products in their class. In this final project the author focuses on designing an optimal exhaust system for a minimalist three-wheeled scooter. The exhaust system serves to reduce exhaust noise from the engine and affect the comfort of the rider and those around him. With the Ulrich method, a suitable concept for a three-wheeled scooter will be selected. Based on the results of the calculation and design process on the exhaust system, the dimensions of the exhaust system channel are 433.25 mm x 98.85 mm x 95.13 mm and the muffler is 360 mm x 76.2 mm x 76.2 mm. Fluid flow analysis shows a back pressure of 15.62 Pa in the exhaust system line and 88.17 Pa in the muffler. Noise testing is carried out on the exhaust system and has met the standards of the Ministry of Environment and Forestry of the Republic of Indonesia with the highest test result of 75.2 dB with a standard of 83 dB.
Co-Authors Adi Wirawan Husodo Aditya Ayuningtyas Agus Khumaidi Al'ma Arif Arrahman Alya Ulfatul Jannah Cahyo Dwi Satria Candra Apriyanto Sanjaya Dhika Aditya Purnomo Dian Asa Utari Fahril Muhamad Fajar Andi Nugroho Fitri Hardiyanti Friska Nur Anggraeni Heroe Poernomo Koko Tri Prayogi Kusuma, George Endri Laila Radina Ningtyas M. Hilmy Syahfata Mochammad Choirul Rizal Mohammad Miftachul Munir Muhammad Iskandar Muhammad Robbi Solikhin Primaningtyas, Widya Emilia Priyambodo Nur Ardi Nugroho Priyo Agus Setiawan Salma Binti Astsalisa Septiani Lestari Shivy Aura Adhyatma Syahrial Virdan Ichwanushofa Tri Andi Setiawan Virgiana Kusuma Pratiwi Wega Tama Setya Wibowo Arnin