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All Journal Rekayasa Mesin JOURNAL OF MECHANICAL ENGINEERING, MANUFACTURES, MATERIALS AND ENERGY Agrotekma: Jurnal Agroteknologi dan Ilmu Pertanian JOURNAL OF CIVIL ENGINEERING, BUILDING AND TRANSPORTATION Jurnal Rekayasa Material, Manufaktur & Energi Dinamis IRA Jurnal Pengabdian Kepada Masyarakat Suara Teknik : Jurnal Ilmiah
Muhammad Yusuf Rahmansyah Siahaan
Universitas Medan Area
Aerospace Engineering Agriculture, Biological Sciences & Forestry Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Transportation Other

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Perancangan Alat Uji Tarik Universal Statis dengan Penggerak Servomotor Berkapasitas Maksimum 1 kN Parulian Malau; Rakhmad Arief Siregar; M. Yusuf Rahmansyah Siahaan
JOURNAL OF MECHANICAL ENGINEERING MANUFACTURES MATERIALS AND ENERGY Vol. 6 No. 2 (2022): Edisi Desember 2022
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jmemme.v6i2.6157

Abstract

In this paper, the author discusses the process of designing static universal tensile test equipment suitable for the laboratory scale of the material. The design presents data on customer expectations and embodiment analysis of the design of the tensile testing machine. This study aims to design a tensile testing machine, choose a match in making a tensile testing machine design following customer expectations, and analyze the embodiment of the design of the tensile testing machine. This research uses quantitative methods using surveys or questionnaires distributed to the research sub-project. The results of this tensile testing machine questionnaire survey are processed into research data which translates into engineering needs and its development into the tool design concept. The result of this study is the design and specifications of the tensile testing machine with a servomotor drive. The tensile testing machine has been successfully designed and works well and has met customers' needs.
Pembuatan Alat Uji Tarik Universal Statis Dengan Penggerak Servomotor Berkapasitas Maksimum 1 kN Feberius Gea; Rakhmad Arief Siregar; M. Yusuf Rahmansyah Siahaan
JOURNAL OF MECHANICAL ENGINEERING MANUFACTURES MATERIALS AND ENERGY Vol. 6 No. 2 (2022): Edisi Desember 2022
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jmemme.v6i2.6173

Abstract

Tensile test is one of several tests that are commonly used to determine the mechanical properties of a material. The purpose of this research is to build and assemble products according to customer needs and to be able to analyze the process of making a static universal tensile tester with a servomotor drive with a capacity of 1 kN. It is hoped that this research can facilitate the selection of raw materials in providing information about the materials to be used and used. This tensile test equipment with a capacity of 1 kN uses a servomotor as the main driver. This type has begun to be used in the world because it is simpler than other motors, so this tool can compete with tensile test equipment sold in the market. This tool is equipped with supporting components such as a load cell, encoder and control panel using a data cable so that it gets graphic results when testing using visual studio software.
Perancangan Alat Uji Impak Anak Panah Jatuh Bebas untuk Menguji Lembaran Plastik dengan Kapasitas 120 gr Goodman Pakpahan; Muhammad Yusuf Rahmansyah Siahaan; Rakhmad Arief Siregar
JOURNAL OF MECHANICAL ENGINEERING MANUFACTURES MATERIALS AND ENERGY Vol. 7 No. 1 (2023): Edisi Juni 2023
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jmemme.v7i1.6295

Abstract

Pengujian impak merupakan suatu pengujian untuk mengukur ketahanan bahan terhadap beban kejut (dinamis). Pengujian impak mensimulasikan kondisi operasi material yang sering ditemui dimana beban tidak selamanya terjadi secara perlahan-lahan melainkan datang secara tiba-tiba. Alat uji impak yang akan dirancang dalam penelitian ini merupakan alat uji impak jatuh bebas. Alat uji impak ini memanfaatkan massa benda serta gaya gravitasi. Pengujian ini bertujuan untuk menganalisa pengaruh pembebanan impak jatuh bebas pada plastik yang dijatuhkan dari ke tinggian 0.66 m. Langkah yang dilakukan dalam penelitian ini meliputi pengujian dan pengambilan data untuk mengetahui energi yang diserap, harga impak, momentum, implus dan ketangguhan pada material baja struktur saat diberi beban kejut. Pada pengujian impak jatuh bebas ini, mempunyai jarak dan berat beban yaitu pada beban (m) = 30, 45, 60 gr dengan jarak ketinggian (h) = 0.66 m.
Analisis Karakteristik Mekanik pada Komposit Kertas Kardus yang Diperkuat dengan Serat Batang Pisang Yusrizha Syahid; Rakhmad Arief Siregar; M. Yusuf Rahmansyah Siahaan
Agrotekma: Jurnal Agroteknologi dan Ilmu Pertanian Vol. 6 No. 1 (2021): Agrotekma: Jurnal Agroteknologi dan Ilmu Pertanian, Desember
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/agr.v6i1.6172

Abstract

The development of composite technology in the industrial world has progressed very rapidly until now. The most important element of composite materials is fiber, which gives the material characteristics such as strength, ductility and other mechanical properties. So far, cardboard and banana trees are only known as waste which is very easy to find in the housing environment. Therefore, research on composites was carried out by utilizing used cardboard and banana trees. The used cardboard then crushed and then mashed into a pulp them combined/mixed using kepok banana tree fiber and mas banana tress fiber which aims to determine the mechanical characteristics of the cardboard paper composite reinforced with materials. As the main adhesive while using PVac glue. The specimen mixture has variations of 30:70, 50:50 and 70:30 with each having 3 variabel in each composition, and the mixture of pulp with mixed kepok and mas fibers has a variation of 50:50 with 3 variabels, all using ASTM standart guidelines, 3039 M. The results of the tensile test of the highest fracture strain value was a mixture of pulp with banana kepok fiber at a composition of 30:70 of 0,0457 MPa, the highest value of yield strength was a mixture of pulp with mixed fiber composition of 50:50 of 1,125 MPa, The highest value of modulus of elasticity is the mixture of pulp and fiber mix 50:50 composition of 1,281 MPa.
Analisis Kekuatan Mekanik Material Komposit Berserat Sabut Kelapa yang Berpeluang Diaplikasikan pada Pembuatan Spakbor Sepeda Motor Darwis Saragih; Muhammad Yusuf Rahmansyah Siahaan; Rakhmad Arief Siregar
Agrotekma: Jurnal Agroteknologi dan Ilmu Pertanian Vol. 6 No. 1 (2021): Agrotekma: Jurnal Agroteknologi dan Ilmu Pertanian, Desember
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/agr.v6i1.6212

Abstract

Utilization of coconut fiber has attracted researchers to determine the mechanical properties of coconut fiber including the value of tensile strength, strain and modulus of elasticity. This study used variables 0 fiber, 5 fiber and 11 coconut fiber then the ratio between the matrix and the catalyst was 10:1 ml. In this study, the material used in the manufacture of composite materials is a type of polyester resin with a catalyst and the reinforcing material is coconut fiber. The composite will be made using the ASTM D 3039M-14 standard with a specimen size of 175 mm x 25 mm x 2 mm. The mold is made of glass and shaped to size using green double-sided foam tape. This tensile testing site was carried out at the Impact and Fracture Research Center, University of North Sumatra. Based on the analysis that has been carried out on the results of the tensile test, it includes looking for the value of tensile stress, yield strength, modulus of elasticity and point of fracture strain. With this test, the highest average tensile stress value is found in variable 5 coconut fiber with a value of 44,076 MPa. While the average value of yield strength is found in the 5 fiber variable with a value of 26,460 MPa, the largest average elastic modulus value is found in the 0 fiber variable of 1360 MPa. In this study, the comparison of the strength of the coconut fiber composite was uneven, this was due to the imperfect shape and process of making the specimen so that the fracture that occurred during the tensile test did not fully occur in the middle of the specimen object.
Analisis Pengaruh Panas dan Beban terhadap Kerusakan Traveling Grate pada Boiler Di PLTU Tembilahan 2x7 MW Sandi Saputra; Siswo Pranoto; Yopan Rahmad Aldori; Syurkarni Ali; Junaidi; Andri Herlambang; Muhammad Yusuf Rahmansyah Siahaan; Muhammad Idris
JOURNAL OF MECHANICAL ENGINEERING MANUFACTURES MATERIALS AND ENERGY Vol. 7 No. 2 (2023): Edisi Desember 2023
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jmemme.v7i2.6094

Abstract

Rack grate is a component composed of rack clip and rack bone arrangement that serves as a dropping cross-section media of coal and as a media of coal burned in the boiler.  As part of the main component, the rack grate can be regarded as one of the components that ensure the success of combustion in the boiler. Failure to this component will certainly interfere with the implementation of boiler operations. In addition to require the boiler to be shut down while repaired, in addition to requiring the boiler to be extinguished during repairs, the inoperability of the boiler makes the steam production process at the PLTU impossible and ultimately the electricity generation process cannot be carried out as usual. Damage to the rack grate component has a type of plastic deformation with variable loads and fluctuating heat, which means that the thermal stress in the system has reached the yield stress point. To find out the root cause of this component damage quickly and accurately, an analysis of the results of the implementation of engineering software in this case Ansys Workbench, and a comparison of actual operating data, and data design is the best choice. Lastly, by evaluating the optimum values of temperature, equivalent stress and strain, total deformation, input process parameters value can be controlled to the desired values, resulting in less stress concentration occurs, so that the damage to the workpiece can be reduced or even eliminated.
EFFECT OF DIAMETER BEARING MOUNTS TO STRESS CONCENTRATION FACTOR ON TRUCK GEARBOX CASING Siregar, Rakhmad Arief; Siahaan, Muhammad Yusuf Rahmansyah; Rizal, Mahmud
Jurnal Rekayasa Mesin Vol. 15 No. 2 (2024)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v15i2.1702

Abstract

The present study examines the effect of diameter bearing mounts to the stress concentration factor. Three commercial truck gearbox casings were selected for redrawing using CATIA. The gearbox casing is then converted into a FEM model in ANSYS. It has a bore ratio (the ratio of the largest diameter to the smallest diameter of the bearing diameter) of 1.8, 1.5 and 1.4. By applying pressure to the upper gearbox casing for static and dynamic conditions, the total deformation response and equivalent stress are investigated. The deformations and equivalent stresses on the three models of gearbox were determined and discussed. It was found that the bore ratio of the gearbox showed significant differences in results on deformations and equivalent stress. Based on the equivalent stress data of view A, which is the side of the gearbox casing connected to the engine, the stress concentration factor results are consistent with the bore ratio.
ANALISIS NUMERIK ANALISIS NUMERIK TERHADAP SAMBUNGAN PROTOTIPE PENGGANTI TULANG PANGGUL PATAH PADA MANUSIA MENGGUNAKAN PERANGKAT LUNAK SOLIDWORKS: TERHADAP SAMBUNGAN PROTOTIPE PENGGANTI TULANG PANGGUL PATAH PADA MANUSIA MENGGUNAKAN PERANGKAT LUNAK SOLIDWORKS Yusuf Siahaan, Muhammad Yusuf Rahmansyah Siahaan; Siregar, Rakhmad Arief
DINAMIS Vol. 10 No. 1 (2022): Dinamis
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/dinamis.v10i1.8974

Abstract

Implan panggul membutuhkan bentuk geometris yang kompleks untuk merekonstruksi area cacat tulang yang tidak biasa, serta kekuatan mekanik yang tinggi untuk menahan beban tekan yang tinggi. Desain fiksasi penting pada implan panggul, mengingat bahwa fiksasi mengamankan implan panggul ke tulang yang tersisa, sementara juga menanggung sejumlah besar beban yang ditempatkan pada tulang. dalam penelitian ini, klasifikasi model sambungan dirancang untuk meningkatkan stabilitas mekanis implan panggul dan menganalisis sambungan protptipe panggul menggunakan simulasi solidworks. Dengan mengklasifikasikan suatu model sambungan. simulasi yang dilakukan dan distribusi tegangan antara daerah tegangan yang tinggi diamati daerah sambungan pada tulang panggul bagian pubis.
Investigation of Static Flexural Strength of Aluminium Honeycomb Panels with Varying Cell Sizes Siregar, Rakhmad Arief; Yusuf Siahaan, Muhammad Yusuf Rahmansyah Siahaan
DINAMIS Vol. 12 No. 1 (2024): Dinamis
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/dinamis.v12i1.16418

Abstract

In this paper, the static flexural strength of aluminium honeycombs with varying cell sizes were tested experimentally using three-point bending method. Three different cell sizes, namely 2 mm, 4 mm and 6 mm, which were produced in a local workshop in the city of Medan, were used for this study. The main focus is to observe the maximum load and permanent deflection under static loads. The results show that the fracture mode that occurs after reaching the maximum load is core fracture followed by rupture of the adhesive between the core and the skin sheet. It is found that cell size has a significant influence on the maximum flexural strength of honeycomb panels which can be approximated by a regression curve with the results a1 = 0.3475 and a0 = 1.51.
Analisis Karakteristik Bahan Tembaga Akibat Pengaruh Proses Penempaan Terhadap Kekuatan Impak Siahaan, Muhammad Yusuf Rahmansyah; Siregar, Rakhmad Arief; Tanjung, Faisal Amri; Saktiawan, Agung
Rekayasa Material, Manufaktur dan Energi Vol 6, No 1: Maret 2023
Publisher : Fakultas Teknik UMSU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/rmme.v6i1.13709

Abstract

Indonesia is one of the countries with the largest copper reserves in the world, namely the Tembagapura area, Mimika Regency, Papua Province. The development of electric car technology has a significant impact on increasing the demand for copper. This study conducted material engineering on copper materials with the forging process. The aim of the research was to obtain the average impact energy, average impact strength, and fracture shape of the material from a variety of copper materials. The variation of each test specimen was formed following the ASTM E23 standard with a size specification of 55 mmL x 10 mmW x 8 mmT. The experimental study of impact testing by the charpy method yielded an average impact energy value of 169.081 Joule and 98.058 Joule respectively for copper variations X1 and X2. The average impact strength values produced by the copper variations X1 and X2 are 2.114 J/mm2 and 1.226 J/mm2 respectively. The results of physical observations of the two variations of the copper material show that the material is not broken with fibrous fractures. The data from the test results can be declared that the forging process with hot working has an effect on increasing material characteristics by 58% and copper materials are classified as ductile materials.
Co-Authors Achmad Jusuf Zulfikar Aji Tyas Muzakir Amru Siregar Amru Siregar Andri Herlambang Bobby Umroh Darianto Darianto Darwis Saragih Diko Alamsyah Eswanto, Eswanto Faisal Amri Tanjung Faisal Amri Tanjung Feberius Gea Felyx Berkat Sihombing Goodman Pakpahan Iswandi Iswandi Januariyansah, Sapitri JUNAIDI Muhammad Idris Muhammad Nuh Hudawi Pasaribu Nasution, Ahmad Yunus Nasution, Ahmad Yunus Nurul Hidayat Parulian Malau Pasaribu, Muhamamd Nuh Hudawi Rakhmad Arief Siregar Riki Juliansyah Rizal, Mahmud Roni Kosasih Saktiawan, Agung Sandi Saputra Siregar, Doni Alfiah Siswo Pranoto Syurkarni Ali Yopan Rahmad Aldori Yusrizha Syahid