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All Journal Jurnal Dedikasi Traksi : Majalah Ilmiah Teknik Mesin Media Mesin: Majalah Teknik Mesin R.E.M (Rekyasa Energi Manufaktur) Jurnal JOURNAL OF MECHANICAL ENGINEERING, MANUFACTURES, MATERIALS AND ENERGY Wikrama Parahita : Jurnal Pengabdian Masyarakat Journal of Energy, Mechanical, Material and Manufacturing Engineering Jurnal Rekayasa Material, Manufaktur & Energi Journal of Engineering and Scientific Research (JESR) Jurnal Ekobis : Ekonomi Bisnis & Manajemen Teknosains : Jurnal Sains,Teknologi dan Informatika JTTM: Jurnal Terapan Teknik Mesin BEMAS: Jurnal Bermasyarakat Jurnal Abdimas Serawai Educivilia: Jurnal Pengabdian Pada Masyarakat Mechanical Engineering for Society and Industry Proceedings Series on Physical & Formal Sciences Urecol Journal. Part E: Engineering AutoMech : Jurnal Teknik Mesin Metalik: Jurnal Manufaktur, Energi, Material Teknik

Wilarso, Wilarso

Sekolah TInggi Teknologi Muhammadiyah Cileungsi

Author-ID : 1217209

Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management 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 Library & Information Science Materials Science & Nanotechnology Mechanical Engineering Nursing Physics Public Health Social Sciences Transportation Other

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Analysis of the corrosion rate and remaining life of the B3 waste transport roll-off tank composed of 316L stainless steel Iwung Hari Retno; Wilarso; Che Wan Mohd Noor
JTTM : Jurnal Terapan Teknik Mesin Vol 4 No 1 (2023): JTTM: Jurnal Terapan Teknik Mesin
Publisher : Teknik Mesin - Sekolah Tinggi Teknologi Muhammadiyah Cileungsi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37373/jttm.v4i1.551

Corrosion has eroded the shell and head of the roll-off tank used to carry B3 waste. This influence will effect on the functioning of the waste containment tanks, as well as the general safety of the public. The goal of this study was to examine the viability of employing a roll off tank by completing a visual inspection and engineering calculations using ASME VIII and API 510 standards to determine the corrosion rate and remaining life in the roll-off tank. This study employs a quantitative approach. Tank design data was acquired using SA-240/G316L material with an initial shell and head thickness of 6 mm and an actual thickness of 5.45 mm shell and 5.50 mm head. The corrosion rate and remaining life analysis yielded a Thickness Required shell value of 4.33 mm and a head value of 4.33 mm, with a shell and head Corrosion Rate value of 0.04 mpy, a Maximum Allowable Working Pressure (MAWP) value of shell and head of 0.63 Bar, and a shell and head remaining life value of 28 years and 30 years, respectively. It may be established that the roll-off tank is still operationally viable. Maintenance and testing regularly to improve roll-off tank performance

Strength Analysis of Crusher Construction in Nyamplung Seed Peeling Machine Using the Finite Element Method Nandang Imam Santosa; Asep Dharmanto; Asep Saepudin; Wilarso
JOURNAL OF MECHANICAL ENGINEERING MANUFACTURES MATERIALS AND ENERGY Vol. 8 No. 2 (2024): December 2024 Edition
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jmemme.v8i2.11757

The nyamplung seed peeling machine uses a single roll crusher as its operating principle to automatically separate the nyamplung fruit's shell. One of the crucial parts of this apparatus that breaks down the nyamplung fruit shells is the crusher. The issue arises from the fact that the strength of the material utilized to construct the crusher is still unknown. This raises questions regarding how well the Nyamplung bean peeling machine crusher will function if it is used constantly. The purpose of this study is to identify the kind of material that works well for a nyamplung seed peeling machine crusher. An analysis will be conducted to ascertain the strength of the Nyamplung seed peeling machine crusher to follow up on this issue. The finite element method was used to conduct the testing. ASTM A36 and AISI 304 are the two materials that are compared in this analysis. In addition, it can be used to compare two different types of materials in terms of their strength, cost, and degree of safety. Following analysis for manual shaft calculations utilizing AISI 304 and ASTM A36 materials. With a yield strength of 250 N/mm², a safety factor of 9, a displacement of 0.022 mm, and von Mises stress readings of 29.044 N/mm² were achieved from the crusher simulation utilizing ASTM A36 material. Von Mises stress for the AISI 304 material was 28.471 N/mm², displacement was 0.023 mm, safety factor was 7, and yield strength was 206.804 N/mm².

Analysis of GTAW and FCAW Welding in Impact Testing in Steel Micro Structures Muhamad Farhan; Wilarso; Aswin Domodite; Awang Surya
JOURNAL OF MECHANICAL ENGINEERING MANUFACTURES MATERIALS AND ENERGY Vol. 8 No. 2 (2024): December 2024 Edition
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jmemme.v8i2.11772

Welded joints, which encompass the criteria of welding base metal connections in the material, welding speed, material quality, and material toughness, are an integral aspect of tank construction. Steel material joints frequently fail during the Gas Tungsten Arc Welding (GTAW) and Flux Cored Arc Welding (FCAW) welding procedures because air droplets become trapped in the steel material during the welding process. Finding the primary reasons for welding failures is the goal of this study. Impact and microstructure testing are used in the welding research method on SS400 steel. The FCAW welding process uses E71T-1C (Kobe) Electrodes Steel Familiarc AWS A5.2 E71T-1C) at varying currents of 80 A (Root), 100 A (Filler), and 120 A (Capping), against SS400 steel plate material with a thickness of 10 mm x 200 mm x 200 mm in V Buut seams Joints. The GTAW ER 70 SG (Familiarc Filler/Rods TG-S51T) Electrode classification allows for 90 A (Root), 110 A (Filler), and 120 A (Capping). Plate 1 has a value of 36.3 kJ/inch in the heat input calculation findings at the three section sites, while Plate 2 has the highest value of 61 kJ/inch. In the meantime, FCAW plate 2 has an impact strength value of 142.1 J, and plate 1 has an average hit in the test results at each of the three places of the specimen, according to the impact test findings. Three welding parameter points were used to record the findings of the metallographic testing's microstructure observations. plates 1 and 2 on the capping, filler, and root. being aware of the areas in the welded junction between plates 1 and 2 that are impacted by heat in the microstructure. Because of the material's strong heat input, which makes the steel brittle and promotes the formation of pearlite rather than ferrite, plate 2 has the highest value in the impact test

Sweep Frequency Response Analysis for Assessment Deformation Core at Power Transformer Wilarso, Wilarso; Asep Saepudin; Hilman Sholih; Asep Dharmanto
Journal of Engineering and Scientific Research Vol. 6 No. 2 (2024)
Publisher : Faculty of Engineering, Universitas Lampung Jl. Soemantri Brojonegoro No.1 Bandar Lampung, Indonesia 35141

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jesr.v6i2.156

SFRA (Sweep Frequency Response Analysis) is a transportation test where one of the purposes of this test is to ensure that the core of the power transformer does not shift due to the journey from the factory to the field. The SFRA testing is divided into 4 frequency range areas from 20 Hz to 20 MHz and this research is focused on the frequency range below 2 KHz, based on experience at this frequency to check transformer core problems and specific failures in shifting power transformer cores. Based on the comparison results of SFRA testing carried out at the power transformer factory during the FAT (Factory Assessment Test) with testing in the field during the first SAT (Site Assessment Test) and with the second SAT testing, there are differences in the frequency area below 2 KHz, this shows that there is a problem in the area power transformer core, before drawing a final conclusion that there is a problem or deformation in the transformer core, you must look at the results of other tests carried out in the field such as ratio test, winding resistance test, tangent delta test, excitation current test, insulation resistance (megger test). ) winding and core-frame as well as impact recorder data during the journey from the factory to the field. If all other field test results are good then the power transformer is still in good condition and ready to operate and the difference in the graph at a frequency of less than 2 KHz in the SFRA test during SAT compared to when FAT is likely to be caused by residual magnetism that is still on the core side due to testing. DC before or. Residual magnetism can occur due to static electrical phenomena due to the oil purification process or due to the induction effect of the network grounding system where the power transformer is placed

Windshield Damage Analysis on ATR 42/72-600 Aircraft at PT. DEF Wilarso, Wilarso; Indra Gumilar; Hilman Sholih; Asep Saepudin
R.E.M. (Rekayasa Energi Manufaktur) Jurnal Vol 10 No 1 (2025): June
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/r.e.m.v10i1.1750

Windshield damage on ATR 42/72-600 aircraft at PT. DEF has caused operational disruptions, including flight delays, increased maintenance costs, and potential safety risks. Repeated damage to the Windshield is caused by various factors, namely inspection and maintenance errors, improper installation procedures, damage to the heating system or pressure distribution, glass material degradation, and exposure to extreme weather and UV rays. In this study, the analysis was carried out using a quantitative method with a fishbone diagram to identify the main causes of damage and appropriate mitigation steps. The results of the analysis showed that the main factors contributing to the damage were errors in inspection, installation errors, and material degradation. After implementing mitigation steps such as improving technician training, revising maintenance procedures, and improving material selection, there was a significant decrease in the frequency of Windshield damage. An indication of the success of these mitigation steps can be seen from the repairs carried out during January to June 2024 which succeeded in reducing damage and rejects on the Windshield by 40% compared to 2023, improving the quality of maintenance, inspection and material durability. In terms of maintenance costs for spare parts, there is a decrease in spending on purchasing spare windshields, namely USD 15,375 (PPG Inc.) x 10 units = USD 153,750 in 2023 to USD 21,915 (Saint Gobain) x 3 units = USD 65,745 in 2024 (June), which is 42% until mid-2024. This step increases operational reliability, cost efficiency, flight safety, and employee productivity, customer satisfaction also increases along with reduced flight delays and cancellations due to technical problems. Overall, the study succeeded in reducing Windshield damage and increasing the company's operational efficiency and reliability

Pelatihan Mengelas Bagi Karang Taruna dan Remaja Putus Sekolah Di Kecamatan Cileungsi Dharmanto, Asep; Saepudin, Asep; Sholih, Hilman; Pracoyo, Wisnu; Arso, Wilarso
Educivilia: Jurnal Pengabdian pada Masyarakat Vol. 1 No. 2 (2020): Educivilia: Jurnal Pengabdian pada Masyarakat
Publisher : Universitas Djuanda

Peningkatan Sumber Daya Manusia harus terus di tingkatkan terutama di bidang pendidikan non formal. Peningkatan keahlian di dunia industri cenderung perkembangannya cukup pesat, jika SDM tidak dibekali dengan kemampuan soft skill dan hard skill akan menurunkan kemampuan bersaing di industri. Ini yang akan menjadi beban mereka, yang tentunya sangat dibutuhkan oleh pemuda-pemuda dengan kemauan berkembang untuk meningkatkan hard skil dan soft skill. Diadakan pelatihan ini, salah satu program Sekolah Tinggi Teknologi Muhammadiyah Cileungsi yang bertujuan meningkatkan kualitas pemuda-pemuda yang ada di lingkungan Sekolah Tinggi Teknik Muhammadiyah Cileungsi dan sekitarnya. Sedangkan di dalam lingkungan industry meningkatkan SDM untuk bersaing dalam kualitas pengelasan dan meningkatkan kualitas produk, serta menjalin hubungan baik antara perguruan tinggi dan masyarakat sekitar industry. Pelatihan pengelasan yang sangat di butuhkan, wirausaha, industri maupun di proyek. Bidang hard skill melalui adanya pelatihan ini, dapat membantu kesulitan- kesulitan pemuda-pemuda di wilayah Cileungsi dalam dunia industri dan upaya untuk menambah kemampuan bidang ketrampilan pengelasan dengan kerjasama antara STTMC dengan PT. CG Power Indonesia. Serta akhir sesi pelatihan diberikan 1 perlengkapan alat las untuk pemuda karang taruna yang mengikuti pelatihan, untuk daerahnya masing-masing

Modification of Nyamplung Seed Peeling Machine Transmission Muhammad Ilham Alhabsyie; Wilarso; Awang Surya; Asep Saepudin; Aswin Domodite
JOURNAL OF MECHANICAL ENGINEERING MANUFACTURES MATERIALS AND ENERGY Vol. 9 No. 1 (2025): June 2025 Edition
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jmemme.v9i1.14238

Design of a nyamplung seed peeling machine with a 0.5 HP electric motor drive source with 1400 rpm rotation using a Ø76 mm pulley transmission system with a 1:1 ratio with a v-belt type A-24. After testing, it was found that from 100% of the nyamplung seeds there were seeds that were crushed and their contents were not processed, as many as 55% of the nyamplung seeds were found, apart from that when the machine was run there were seeds that were thrown out of the hopper so that the results of the machine design were deemed not to be as expected. To overcome this problem, it is necessary to modify the previous research machine so that the peeling process between the seeds and the nyamplung shell can improve the quality. The results of the modification of the nyamplung seed peeler tool were obtained with a duration of 13 seconds, the number of nyamplung seeds was 25 pcs, of which 17 were peeled. There were 5 pcs of whatever were not peeled, and 3 pcs were crushed. The second trial had a duration of 14 seconds, the number of seeds sampled was 25, 18 were peeled, the remaining 4 were not peeled and 3 were crushed. The third trial lasted 15 seconds out of a total of 25 pieces peeled, the result was 19 pieces peeled and the remaining 2 pieces failed, 4 pieces were destroyed

Design and Construction of Prototype of CNC Plasma Cutting Machine Simulator 3 Axis Based on Stepper Motor and Mach3 PC Software Asep Dharmanto; Nur Rofiq; Asep Saepudin; Aswin Domodite; Wilarso
JOURNAL OF MECHANICAL ENGINEERING MANUFACTURES MATERIALS AND ENERGY Vol. 9 No. 1 (2025): June 2025 Edition
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jmemme.v9i1.14289

In a workshop, the machining or cutting process of plates must be done quickly and accurately, while most of them are still done manually or by hand. One of the technologies used today is the CNC (Computerized Numerical Control) machine which is one of the results of the development of machining technology that can be operated automatically and continuously, so that it can support the need for requests for complex workpiece shapes, high accuracy and in large quantities. In its processing, this workpiece is very difficult to do with a manual process or with ordinary tools. To overcome this, a CNC plasma cutting machine design was made. CNC plasma cutting is a CNC machine whose motion system can move the plasma eye or torch according to computer commands. The design of this plasma cutting machine is carried out with a design process to determine the dimensions of the machine and calculations to determine the specifications of the drive motor, with the design of the electric wiring diagram and the selection of controller selection specifications for the system. By testing the precision of the tool during the experiment. The purpose of this design is to create a CNC plasma cutting machine with easily obtainable materials and capable of carrying out complex plate cutting work with high tool precision. This CNC plasma cutting machine uses 3-axis CNC as the main driver, namely the X axis, Y axis and Z axis, and is operated with Mach3 software as a CNC machine controller and uses a stepper motor to move the axis axis. Mach3 software was chosen because it has an easy configuration because there is an auto tuning feature in determining the precision of each axis and is easy to operate, and easy to get on the internet, so that with this CNC plasma cutting machine it can help a workshop in doing sheetmetal work efficiently and accurately which in the end can save material, time and cost of work

Analysis of Power Transformer Core Retaining Plate Damage During Ship Transportation Using Response Spectrum Method: Analisis Kerusakan Pelat Penahan Inti Transformator Daya Saat Transportasi Kapal Laut Menggunakan Metoda Response Spectrum Asep Dharmanto; Wilarso, Wilarso; Asep Saepudin; Djoko Wahyu K; Achmad Husen
R.E.M. (Rekayasa Energi Manufaktur) Jurnal Vol 10 No 1 (2025): June
Publisher : Universitas Muhammadiyah Sidoarjo

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

Inti transformator daya diletakan di dalam tangki dengan kondisi pressfit 4 sisi di bagian dasar tangki dan 4 bagian sisi atas ditopang dari 4 arah terhadap gerakan longitudinal - transversal kemudian 2 pedestal atas inti transformer ditekan dengan tutup tangki di bagian bawahnya. Pada waktu transportasi di laut transformator ini mengalami impak yang terekam sebesar 4.1g, kemudian dengan penyidikan visual terlihat lepasnya pelat penahan dan inti transformator mengalami pergeseran dan kerusakan sehingga transformator harus dimanufaktur kembali di pabriknya. Analisa dinamika menggunakan metoda elemen hingga (finite element method) diperlukan untuk mengetahui apakah kegagalan penopang sudah terjadi di atas nilai percepatan 1g, sehingga nilai 4.1g adalah benturan inti transformator ke tangkinya. Pemodelan dibuat 3D shell wall modeling orisinil untuk penopang dan tangki, sedangkan model inti transformator bentuknya disederhanakan menjadi kotak shell untuk memudahkan meshing. Parameter input menggunakan High Required Response Spectrum 0.5g dari IEEE std 693-2005 sedangkan parameter dinamik yang diukur adalah besarnya ragam getar, fenomena resonansi dan tegangan (stress) pelat. Hasil data analisa dinamik dengan menggunakan metoda elemen hingga yaitu transformator mengalami resonansi dengan dek kapal, atau bila terjadi impak di badan kapal akibat goyangan ombak di percepatan di atas 1g maka pelat penahan telah mengalami tegangan di atas kekuatan tariknya (Tensile Strength).

Analisis Kekuatan Rangka Pompa Seri Paralel Menggunakan Fifnite Element Method Dengan Software CATIA V5 Fatur Rohim; Wilarso, Wilarso
METALIK : Jurnal Manufaktur, Energi, Material Teknik Vol. 4 No. 2 (2025): Metalik: Jurnal Manufaktur, Energi, Material Teknik
Publisher : Universitas Muhammadiyah PROF. DR. HAMKA Fakultas Teknik – Program Studi Teknik Mesin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22236/metalik.v4i2.21049

Rangka merupakan komponen penting dari sebuah mesin yang berfungsi sebagai penyangga dan memastikan pondasi yang dimiliki sangat kuat untuk menahan beban yang diterima tanpa mengalami kegagalan. kekuatan rangka yang dianalisis dengan baik dapat menyebabkan kerusakan yang struktural yang berpotensi membahayakan keselamatan manusia dan mengakibatkan kerugian ekonomi yang signifikan. Oleh karena itu, analisis ini diperlukan untuk mengidentifikasi struktur rangka di bawah beban yang bervariasi, serta untuk mengidentifikasi area-area yang rentan terhadap kerusakan sehingga dapat diambil langkah-langkah preventif dalam tahap desain dan kontruksi. Tujuan dari analisis rangka ini adalah untuk memastikan bahwa struktur rangka memiliki kapasitas memadai untuk menahan beban maksimum yang mungkin terjadi selama masa pakainya. Selain itu, tujuan utama dari analisis rangka ini untuk mengidentifikasi faktor-faktor yang mempengaruhi kinerja rangka, seperti material, geometri, dan jenis sambungan yang digunakan. Dengan memahami faktor-faktor ini, mahasiswa dapat membuat keputusan yang lebih baik dalam memilih material dan konfigurasi struktural yang optimal untuk meningkatkan kekuatan dan stabilitas rangka. Metode yang digunakan dalam analisis ini adalah Metode Elemen Hingga (Finite Element Method) yang memungkinkan simulasi dan evaluasi rangka dalam berbagai kondisi beban. Hasil dari analisis ini menunjukkan bahwa struktur rangka yang dianalisis memiliki distribusi tegangan yang merata dan deformasi yang minimal di bawah beban desain yang diharapkan. Namun, beberapa titik sambungan dan elemen struktural tertentu menunjukkan konsentrasi tegangan yang lebih tinggi, yang memerlukan perhatian yang khusus dalam desain ulang atau penguatan, temuan ini menekankan pentingnya analisis kekuatan rangka dalam proses desain untuk memastikan keamanan, efisiensi dan daya tahan struktur yang dirancang. Hasil pengujian menunjukkan bahwa analisis tegangan (stress analysis) pada rangka pompa menunjukkan nilai von mises dengan beban 50 kg, 80 kg dan 100 kg sebesar 24,252 Mpa, 39,24 Mpa, dan 49,05 Mpa. Sedangkan hasil displacement sebesar 8,17mm, 13,06mm, dan 17,00mm. Dan hasil faktor keamanan (safety factor) sebesar 10,18, 6,37, dan 5,09. Dari ketiga hasil pengujian stress analysis, displacement dan safety factor menunjukkan bahwa rangka pompa seri paralel aman untuk digunakan dan mampu menahan beban tanpa mengalami kegagalan atau deformasi yang signifikan.

Co-Authors Achmad Husen Afriliyanti, Alfiyah Ahmad Aji Kurniawan Ahmad Faisal Mohamad Ayob Aji Setiawan Alfiyah Afriliyanti Ari Dwi Wibowo Arif Ardianto Asep Dharmanto Asep Dharmanto Asep Saepudin Ashari Imamuddin Aswin Domodite awang surya Awang Surya Azharul, Firmansyah Azziqi, Yusril Zindar Barlan Tahiti Saufa Bayu Idianto Bayu Idiyanto Bayu Idiyanto C.W. Mohd Noor Che Wan Mohd Noor Che Wan Mohd Noor Che Wan Mohd Noor Dan Mugisidi Dharmanto, Asep Djoko Wahyu K Domodite, Aswin Fatur Rohim Fauzi Ramdani Firman Gunawan Firmansyah Azharul Firmansyah Azharul Fitriaji, Abdul Azis Hanifah Syayidah Lutfiyah Hilman Sholih Holyness Nurdin Singadimedja Idris, Mustopa Ika Novalia Saputri Ika Novalia Saputri Indra Gumilar Irpan Setiawan Iwung Hari Retno Iwung Hari Retno Izar Mahmud Syuhada Jaelani Syurdiansyah Jujun Juniadi Juniadi, Jujun Khoidul Umam M Ali Pahmi Miftahul Imtihan Mohamad Anas Sobarnas Mohd. Yuhazri Yaakob Muhamad Farhan Muhammad Ilham Alhabsyie Mujiarto Mujiarto, M. Mupah Rizal Mustopa Idris Mustopa Idris Nandang Imam Santosa Nandang Imam Santosa Nur Rofiq Pamuji Agustiar Ma’sudi1 Pracoyo, Wisnu Retno, Iwung Hari Rizki Rudi Indrawan S.Pd. M Kes I Ketut Sudiana . Saepudin, Asep Sholih, Hilman Solly Aryza Sugiharjo Sulistya Agus Prabowo Surya, Awang Umam, Khoidul Umam Upay Ripa’I Verry Surya Hendrawan Wan Nurdiyana Wan Mansor Wisnu Pracoyo Wisnu Pracoyo Wisnu Pracoyo Yusril Zindar Azziqi

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