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All Journal TEKNIK Rekayasa Mesin Angkasa: Jurnal Ilmiah Bidang Teknologi Journal of Health Science and Prevention Jurnal Teknik Mesin Indonesia International Journal of Mechanical Engineering Technologies and Applications (MECHTA) Journal of Mechanical Design and Testing (JMDT) ASEAN Journal for Science and Engineering in Materials J-Proteksion : Jurnal Kajian Ilmiah dan Teknologi Teknik Mesin
Muhammad Akhsin Muflikhun
Universitas Gadjah Mada
Aerospace Engineering Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Nursing Public Health

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Analisis Pengaruh Biodiesel B20 Dan B100 Terhadap Degradasi Viskositas Dan Total Base Number Minyak Pelumas Pada Mesin Diesel Yang Beroperasi Dalam Jangka Panjang Dengan Metode ASTM D2896 Dan ASTM D445-06 Sentanuhady, Jayan; Majid, Akmal Irfan; Prashida, W.; Saputro, W.; Gunawan, N. P.; Raditya, T. Y.; Muflikhun, Muhammad Akhsin
TEKNIK Vol 41, No. 3 (2020): December 2020
Publisher : Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/teknik.v41i3.32515

Abstract

Based on its characteristics, biodiesel has a higher density, viscosity, and acidity level than diesel fuel, so it has a disadvantages in terms of lubricants especially in the long run. The impact, it can decrease the kinematic viscosity of the lubricant, a decrease in the total base number, and the impact by decreased of the engine performance. This research aims to determine the characteristics of lubricants from the use of biodiesel (B20 and B100) related to the kinematic viscosity of lubricants and Total Base Number (TBN). The testing method were used ASTM D2896-15 and ASTM D445-06 standard. The study used two units Kubota RD 65 DI-NB diesel engines with a cylinder volume of 376 cc. The rotary speed of the machine was keep constant at 2200 rpm and were operated for 300 hours non-stop. Moreover, the sampled was carried out every multiple of 100 hours. Based on the research results, the quality of lubricants with B100 fuel is no better than lubricants with B20 fuel. B100-fueled lubricants have kinematic viscosity values at temperatures of 40 °C and 100 °C and has lower TBN values than B20-fueled lubricants.
Rancang bangun mesin separator magnetik untuk proses daur ulang baterai litium 18650 Akhmad Tito Fismatika; Muslim Mahardika; Budi Arifvianto; Muhammad Akhsin Muflikhun
Jurnal Teknik Mesin Indonesia Vol 17 No 1 (2022): Jurnal Teknik Mesin Indonesia
Publisher : Badan Kerja Sama Teknik Mesin Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36289/jtmi.v17i1.286

Abstract

Kebutuhan baterai litium ion dalam kehidupan sehari-hari terus meningkat. Dengan beragamnya peralatan yang menggunakan baterai litium ion, maka semakin tinggi pula jumlah limbah baterai ini. Limbah baterai litium ion digolongkan dalam limbah B3 (Bahan Berbahaya dan Beracun). Oleh karena itu, daur ulang baterai litium ion perlu dilakukan guna mengurangi limbah B3. Proses daur ulang baterai dapat dilakukan dengan beberapa tahapan, dimulai dengan mengosongkan baterai (discharging), pembongkaran baterai (dismantling), penghancuran baterai (crushing), pengambilan litium (mining), dan pemurnian litium (purification litium). Tahapan yang dibahas dalam kajian ini yaitu tahapan pengambilan litium (mining). Pengambilan litium dilakukan dengan cara pemisahan magnetik hasil penghancuran baterai litium ion dengan harapan dapat mempermudah proses daur ulang baterai. Tujuan kajian ini untuk merancang mesin magnetik separator yang aman saat dioperasikan. Kajian ini dilakukan untuk merancang dan mengetahui tingkat keamananan mesin separator magnetik yang berfungsi sebagai alat proses daur ulang baterai litium ion 18650. Metodologi yang dilakukan dalam merancang mesin separator magnetik ini dilakukan dengan beberapa proses. Proses awal yaitu perancangan magnetik separator menggunakan software Autodesk Inventor 2020 Student Version. Berikutnya desain magnetik separator dianalisis menggunakan software Ansys 2021 Student Version sebagai perhitungan finite element analysis. Hasil analisis dari software Ansys 2021 Student Version berupa tegangan Von Mises Stress, Deformation, dan Maximum Shear Stress. Dari data hasil software Ansys 2021 Student Version dapat diketahui bahwa mesin magnetik separator sudah aman untuk dioperasikan. Dengan adanya mesin magnetik separator ini diharapkan mampu menambah efisiensi dan efektivitas dalam proses pengambilan logam aktif litium dari hasil penghancuran baterai dalam proses daur ulang baterai litium ion.
Earthing Method Reducing the Length of Acute Respiratory Infection Among Preterm Infants Estiningtyas Estiningtyas; Anindhita Yudha Cahyaningtyas; Muhammad Akhsin Muflikhun
Journal of Health Science and Prevention Vol. 6 No. 1 (2022): JHSP Vol 6 No 1 - 2022
Publisher : State Islamic University of Sunan Ampel

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29080/jhsp.v6i1.650

Abstract

Preterm infants have compromised immune systems where the maturity of the organs and body system is not optimum. The compromised immune system makes premature infants susceptible to micro-bacterial infections. Acute respiratory infection is the most common infection among them. This study aimed to investigate the significant difference in the length of acute respiratory infection before and after Earthing therapy. This research is a quasi-experimental study. The location is Sukoharjo District, Indonesia, from March to August 2021. The population in this study is preterm infants whose data is obtained from monthly reports on Central Java Statistic Agency. The number of samples of preterm infants was 192 infants. The sample size was 20 infants. Earthing duration is 1 hour every day for 30 days. The statistical analysis results in a P-value of 0,000 and t-count 8.065>t table 2.093, indicating a significant difference in the length of Acute Respiratory Infections among preterm infants before and after Earthing therapy. It is recommended that mothers of preterm infants continue to utilize Earthing devices longer to increase the immune system and prevent acute respiratory infection. Furthermore, using Earthing therapy is beneficial for improving the general immune system in preventing or accelerating the healing process of microbial infection with Earthing devices or straight to the ground.
Rancang bangun mesin separator magnetik untuk proses daur ulang baterai litium 18650 Akhmad Tito Fismatika; Muslim Mahardika; Budi Arifvianto; Muhammad Akhsin Muflikhun
Jurnal Teknik Mesin Indonesia Vol. 17 No. 1 (2022): Jurnal Teknik Mesin Indonesia
Publisher : Badan Kerja Sama Teknik Mesin Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36289/jtmi.v17i1.286

Abstract

Kebutuhan baterai litium ion dalam kehidupan sehari-hari terus meningkat. Dengan beragamnya peralatan yang menggunakan baterai litium ion, maka semakin tinggi pula jumlah limbah baterai ini. Limbah baterai litium ion digolongkan dalam limbah B3 (Bahan Berbahaya dan Beracun). Oleh karena itu, daur ulang baterai litium ion perlu dilakukan guna mengurangi limbah B3. Proses daur ulang baterai dapat dilakukan dengan beberapa tahapan, dimulai dengan mengosongkan baterai (discharging), pembongkaran baterai (dismantling), penghancuran baterai (crushing), pengambilan litium (mining), dan pemurnian litium (purification litium). Tahapan yang dibahas dalam kajian ini yaitu tahapan pengambilan litium (mining). Pengambilan litium dilakukan dengan cara pemisahan magnetik hasil penghancuran baterai litium ion dengan harapan dapat mempermudah proses daur ulang baterai. Tujuan kajian ini untuk merancang mesin magnetik separator yang aman saat dioperasikan. Kajian ini dilakukan untuk merancang dan mengetahui tingkat keamananan mesin separator magnetik yang berfungsi sebagai alat proses daur ulang baterai litium ion 18650. Metodologi yang dilakukan dalam merancang mesin separator magnetik ini dilakukan dengan beberapa proses. Proses awal yaitu perancangan magnetik separator menggunakan software Autodesk Inventor 2020 Student Version. Berikutnya desain magnetik separator dianalisis menggunakan software Ansys 2021 Student Version sebagai perhitungan finite element analysis. Hasil analisis dari software Ansys 2021 Student Version berupa tegangan Von Mises Stress, Deformation, dan Maximum Shear Stress. Dari data hasil software Ansys 2021 Student Version dapat diketahui bahwa mesin magnetik separator sudah aman untuk dioperasikan. Dengan adanya mesin magnetik separator ini diharapkan mampu menambah efisiensi dan efektivitas dalam proses pengambilan logam aktif litium dari hasil penghancuran baterai dalam proses daur ulang baterai litium ion.
Evaluasi Kekuatan Mesin Bubut Akibat Gaya Pemakanan Pada Ujung Alat Potong Adhi Tri Setiono; Muhammad Akhsin Muflikhun; S Suyitno
Journal of Mechanical Design and Testing Vol 4, No 2 (2022): Article in Press
Publisher : Departemen Teknik Mesin dan Industri, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jmdt.70819

Abstract

Keberadaan mesin bubut berperan penting pada pekerjaan pemesinan. Di sisi lain permintaan mesin bubut yang semakin meningkat di Indonesia terutama pada Industri Kecil dan Menengah bidang manufaktur. Namun, mayoritas mesin bubut yang beredar di Indonesia saat ini merupakan mesin bubut impor. Oleh karena itu diperlukan satu upaya perancangan dan pembuatan mesin bubut untuk memenuhi kebutuhan industri tersebut. Pada penelitian ini dilakukan evaluasi kekuatan mesin bubut skala kecil hasil perancangan. Evaluasi ini dilakukan dengan pendekatan analisis elemen hingga. Hasil evaluasi dapat digunakan sebagai acuan untuk mengetahui kekuatan mesin bubut sebelum dilakukan proses produksi. Parameter rata-rata pemakanan dan kedalaman pemotongan diterapkan pada simulasi. Kondisi pemotongan ditentukan untuk mendapatkan gaya pemakanan,  gaya radial, dan gaya tangensial. Gaya-gaya diterapkan pada ujung alat potong sesuai dengan kondisi pembubutan sebenarnya. Hasil evaluasi menunjukkan gaya-gaya pada proses pemakanan tidak berdampak apapun pada rangka mesin bubut dan pada bagian pemegang pahat tidak terjadi gaya dan defleksi yang signifikan.
DESIGN AND EVALUATION OF CARABINER USING FINITE ELEMENT ANALYSIS Divlan Audie Sentanu; Muhammad Akhsin Muflikhun
Jurnal Rekayasa Mesin Vol. 13 No. 3 (2022)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v13i3.989

Abstract

A carabiner is a fall protection safety tool that is used in various outdoor and indoor activities, most known usage is at climbing and high-risk work related to elevation. A standard carabiner is capable to withstand at least 7 kN of static load. In this study, we only observe how carabiners respond in certain static loads by using simulation software and comparing the result with the standard of carabiners. We use F1956-13 as a standard of the test procedure, and aluminum alloy 6061 as the material. After the study from simulation result, it shows that stress and deformation change linearly with loads. But the safety factor has different behavior, after the load applied increases over 1 kN the slope decreases significantly, and the safety factor is around 0,17 at 7 kN applied load. Besides that, we understand that design analysis by simulation is a good method to obtain the optimal geometry, or shape of the model, but computational simulation cannot replace physical mechanical tests.
Earthing Method as Lifestyle Medicine to Reduce Hypertension in Pregnancy in Surakarta City, Central Java, IndonesiaEarthing Method as Lifestyle Medicine to Reduce Hypertension in Pregnancy Estiningtyas; Anindhita Yudha Cahyaningtyas; Muhammad Akhsin Muflikhun
Journal of Health Science and Prevention Vol. 7 No. 1 (2023): JHSP Vol 7 No 1 - 2023
Publisher : State Islamic University of Sunan Ampel

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29080/jhsp.v7i1.859

Abstract

Hypertension in pregnancy is among the three highest complications in 1 in 10 pregnant women. It is a significant cause of morbidity and mortality for mothers and babies (including seizures and low birth weight (LBW)). Earthing or grounding is a direct contact therapy between the body and the earth's surface (soil, grass, sand or stone), which allows the free transport of electrons from the earth's surface to spread to the body through the skin. The research objective was to analyze the effect of Earthing on hypertension in pregnancy. The research design was a pre-experimental with a one-group pretest and posttest, designed for one year of study. The population of pregnant women with hypertension in Surakarta City, Central Java, with the sampling technique used was purposive sampling, recruiting 20 respondents. Earthing duration 1 hour every day for 30 days. The statistical analysis results in a P-value of 0.000, t-count 25.065>t-table 2.093, for systolic blood pressure and P-value 0.000, t-count 93.05>t-table 2.093 for diastolic blood pressure. It indicates a significant difference in pregnant mothers' systolic and diastolic blood pressure before and after Earthing. It is recommended for mothers to perform Earthing or grounding as a lifestyle medicine at home by placing bare feet on the soil every day for 1 hour. It is beneficial to do Earthing/grounding throughout the pregnancy or by using Earthing device that connects the electrons in the earth to the skin.
The Progressive Development Of Multifunctional Composite Materials In Different Applications Muhammad Akhsin Muflikhun
Angkasa: Jurnal Ilmiah Bidang Teknologi Vol 12, No 2 (2020): November
Publisher : Institut Teknologi Dirgantara Adisutjipto

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (769.898 KB) | DOI: 10.28989/angkasa.v12i2.673

Abstract

Composite materials gain huge interest from researchers due to its advantages and flexibility. Strength and properties that can be adjusted based on the needs and applications is a specific advantage of composite materials. Since these advantages can be applied in many fields, composite materials often clustered in multifunctional materials. This study aims to lists and classified the progressive development of multifunctional composite materials that found and already proven can be applied in many applications. This study also gives data that can be driven to readers from different backgrounds and used it for further purposes. The results are shown that the progressive development of multifunctional composite materials not only one step forward in the technical achievements but also the energy and environment-related to human ecosystems.
OPTIMASI MULTIOBJEKTIF PARAMETER PROSES 3D PRINTER JENIS FUSED DEPOSITION MODELLING MENGGUNAKAN GREY RELATIONAL ANALYSIS-TAGUCHI Shanaswara , Adhira Azhari; Aditya, Muhammad Randi Nur; Rashyid, Muhammad Ibnu; Herianto, Herianto; Muflikhun, Muhammad Akhsin
Jurnal Rekayasa Mesin Vol. 14 No. 3 (2023)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v14i3.1253

Abstract

The development of fused deposition modelling (FDM) 3D printer models is increasing where the applications can be found in several aspects such as rapid prototyping, functionally components, and parts for assembly process. These conditions required excellent printing quality. One of the factors that affect the printing quality was process parameter setting. There are several parameters process that are used in 3D printing. Hence, the use of these parameters that recommended by manufacturer often give the average results, not the best results. The recent study purposes are to gain optimal setting that give accuracy in the dimension and suitable surface condition. There are 12 factors with 3 different levels. The study used Taguchi method L-27 and grey relational analysis (GRA) to determine the most efficient combinations that can fulfill multi-objective. The results showed that to acquire the accuracy and total dimension, the following combination are used; LH0,075mm, LW0,45mm, IPLines, WT0,8mm, PT205C, FR85%, RD6,5mm, RS30mm/s, PS30mm/s, OWS15mm/s2, PA10mm/s2, and PJ10mm/s where wall thickness (WT); flow rate (FR); and retraction distance (RD) used as 3 essential factors that can influence the respond of the machine. The best surface roughness gathered with the combination as follow; LH0,075mm, LW0,35mm, IPGrid, WT0,8mm, PT200C, FR95%, RD2mm, RS30mm/s, PS70mm/s, OWS25mm/s, PA3000mm/s2, dan PJ30mm/s where the layer height (LH) was the essential factor that affect the machine respond. The accuracy of the dimension and the most optimum surface roughness can be acquired by the following combinations: LH0,075mm, LW0,35mm, IPGrid, WT0,8mm, PT205C, FR95%, RD4,5mm, RS30mm/s, PS70 m/s, OWS15 mm/s, PA3000 mm/s2, dan PJ10mm/s.  
A RECENT REVIEW ON THE FAILURE ANALYSIS OF BOILER TUBE Utomo, Faris Fadhil; Rashyid, Muhammad Ibnu; Nugraha, Ariyana Dwiputra; Muflikhun, Muhammad Akhsin
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.v15i2.1392

Abstract

The failure analysis in the industrial systems i.e. power plan, oil, and gas companies, has been reported by many researchers. One of the most reported has occurred in the Boiler system. Among the components of the boiler, problems, and failures often took place in the tube. The purposes of the recent study are to describe, classify, and review the latest update of the failure behavior of the boiler tube. The failure was formed by overheating, creep, stress corrosion, cracking, erosion, oxidation, and post-weld heat treatment (PWHT). The current works are listed based on the methods used to identify the failures, failure observations, and case studies updated from the boiler tube failure condition. The research suggests that to replace the failure tubes, analysis related to the stress induced outside and inside the tube, environment conditions, and lifetime maintenance works need to be considered.
Co-Authors Adhi Tri Setiono Aditya, Muhammad Randi Nur Akhmad Tito Fismatika Akhmad Tito Fismatika Akmal Irfan Majid Anindhita Yudha Cahyaningtyas Anindhita Yudha Cahyaningtyas Ardi Wiranata Ariyadi, Hifni Muchtar Ariyadi, Hifni Mukhtar Asriyanti, A. Budi Arifvianto Cahyaningtyas, Anindhita Yudha Christiana Arin Proborini Chua, Alvin Y. Darmawan, Muhammad Rakhadzaky Indra Divlan Audie Sentanu Estiningtyas Estiningtyas Estiningtyas Estiningtyas, Estiningtyas Fathurrohman , Nur Kholis Fernandez, Nikolas Krisma Hadi Gunawan, N. P. Herianto Herianto Jayan Sentanuhady Khoiriyah, Nisa Kushendarsyah Saptaji Kusni, Muhammad Muslim Mahardika Nugraha, Ariyana Dwiputra Nugroho, Alvin Dio Prashida, W. Putro, Ardi Jati Nugroho Raditya, T. Y. Rashyid, Muhammad Ibnu Rohadi Satrio Budi Utomo, Rohadi Satrio S Suyitno Santos, Gil Nonato C. Saputra , Imam Saputro, W. Seno Darmanto Shanaswara , Adhira Azhari Tanbar, Fefria Triawan, Farid Utomo, Faris Fadhil Utomo, Muhammad Satrio Vitayanti Fattah Wibisono, Muhammad Maheswara