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All Journal R.E.M (Rekyasa Energi Manufaktur) Jurnal Turbo : Jurnal Program Studi Teknik Mesin Journal of Energy, Mechanical, Material and Manufacturing Engineering Jurnal Agrotek Tropika Academia Open JTTM: Jurnal Terapan Teknik Mesin Seminar Nasional Hasil Riset dan Pengabdian (SNHRP) KREATIF: Jurnal Pengabdian Masyarakat Nusantara
Mulyadi Mulyadi
Universitas Muhammadiyah Sidoarjo
Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Chemistry Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Economics, Econometrics & Finance Education Engineering Environmental Science Health Professions Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Mechanical Engineering Medicine & Pharmacology Physics Social Sciences Other

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Program penyuluhan penerapan Protokol kesehatan pada masjid Al-Ishlah desa Doko kediri Jawa timur Ali Akbar; Rachmat Firdaus; Mulyadi Mulyadi
SNHRP Vol. 3 (2021): Seminar Nasional Hasil Riset dan Pengabdian (SNHRP) Ke 3 Tahun 2021
Publisher : LPPM Universitas PGRI Adi Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (262.264 KB)

Abstract

Adanya pandemi virus covid 19 yang melanda masyarakat secara luas, bukan hanya di Indonesia tetapi seluruh dunia menyebabkan masyarakat harus melakukan pembatasan aktivitas dan kontak langsung. Berdasarkan data pemerintah bahwa jumlah pasien yang terpapar mengalami peningkatan, yang mempengaruhi seluruh kehidupan terutama sektor ekonomi dan sosial. Karena itu banyak pihak yang berupaya untuk mengurangi laju perkembangan tingkat penyebaran dengan melakukan merubah perilaku masyarakat secara intensif dengan melakukan penerapan 5 M. Namun dengan adanya perubahan perilaku tersebut memiliki masalah terutama adanya penolakan dari masyarakat, hal ini didasari atas kewajiban penerapan 5 M yaitu memakai masker, mencuci tangan pakai sabun dan air mengalir, menjaga jarak, menjauhi kerumunan, serta membatasi mobilisasi dan interaksi. Oleh karena itu solusi yang dilakukan adalah memberikan penyadaran pentingnya penerapan 5 M tersebut di seluruh sendi kehidupan dan hal ini juga berlaku di tempat peribadatan yaitu masjid. Metode yang digunakan adalah dengan melakukan sosialisasi atau penyuluhan kepada ta’mir masjid yang selanjutnya di teruskan melalui kebijakan ta’mir dalam memberlakukan penerapan protokol kesehatan kepada seluruh jamaah yang ada di masjid tersebut dalam setiap kegiatan-kegiatan yang diselenggarakan oleh masjid.
Aftermarket Wheels Numerical Simulation To Get Maximum Stress and Deformation Values Mulyadi Mulyadi; Akhmad Surya Wijianto; Iswanto
R.E.M. (Rekayasa Energi Manufaktur) Jurnal Vol 7 No 2 (2022): December
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/r.e.m.v7i2.1568

Abstract

The purpose of this research is to get wheels with offset variants of -15, +20, and +35 made of aluminum alloy with a maximum load of 690 kg. Autocad 2018 and Unigraphic NX 8 were used to create all three designs. The load was calculated using the SAE J2530 standard and simulated using the ANSYS Workbench 14.5 application's numerical simulation method. As a result, the car rim is designed with a spoke form that becomes steeper (Concave) as the offset decreases. Methods a) Dynamic Cornering Fatigue Test, b) Dynamic Radial Fatigue Test, and c) Impact test consecutively at offset -15 of a) 62.33 MPa, b) 111.61 MPa, and c) 1.58 mm can be used to obtain numerical simulation results. For offsets of +20 of 70.91 MPa, 75.75 MPa, and 1.6 mm. And a) 90.33 MPa, b) 78.13 MPa, c) 1.61 mm at offset +35.
Effect of Thermoelectric Power and Air Flow on Air Temperature and Relative Humidity Arasy Fahruddin; Prantasi Harmi Tjahjanti; Mulyadi
JEMMME (Journal of Energy, Mechanical, Material, and Manufacturing Engineering) Vol. 7 No. 1 (2022)
Publisher : University of Muhammadiyah Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22219/jemmme.v7i1.21761

Abstract

A dehumidifier is a device for drying air by releasing moisture. A dehumidifier with a thermoelectric cooler has the advantage of being more compact and has the potential to be combined with an air heater. This study aimed to determine the effect of thermoelectric power and airflow on air temperature and relative humidity. The research method uses direct experiments with six pieces of thermoelectric as a coolant. The data taken are the cooler surface temperature, the air temperature that is dried, and the humidity of the air. The test results show that the dried air temperature can reach 25.6oC with 78% humidity in environmental conditions with an ambient air temperature of 31oC.
Pengaruh parameter proses friction stir welding dengan material aluminium alloy AA6061-T651 terhadap distorsi dan kekerasan Mulyadi Mulyadi; Rachmat Firdaus; Iswanto Iswanto; Mochammad Nur Rizki
TURBO [Tulisan Riset Berbasis Online] Vol 11, No 2 (2022): TURBO : Jurnal Program Studi Teknik Mesin
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v11i2.2171

Abstract

Welding is a process of uniting two or more materials into a form of connection using heat energy. Friction Stir Welding (FSW) is a solid-state welding method that can produce high-quality welding joints for some materials with low weldability such as aluminum. The research objective was to determine the effect of process parameters on the distortion and resistance of aluminum AA6061-T651 material through the Brinell hardness test. The FSW tool used has a hexagonal pin geometry. The experimental design used the Taguchi method. This study uses 4 factors and each factor has 4 levels, the elements used are tool rotation speed, welding speed, tool tilt angle, and concave shoulder angle. The responses analyzed are distortion and hardness of the welded joint material. The effect of process parameters on the response was analyzed using ANOVA. The results of ANOVA on distortion obtained the value of Brinell hardness in the weld metal area, and in the TMAZ area. Specimen 13 with tool rotation speed parameters of 3022 rpm, welding speed of 43 mm/min, tool tilt angle of 3.5°, and concave shoulder angle of 2° with a distortion value of 0.117°. Then we get the results of the Brinell hardness of the weld metal which is close to the target of the base metal with the parameter tool rotation speed of 3022 rpm, welding speed of 90 mm/min, tool tilt angle of 2.5°, and concave shoulder angle of 8° with a Brinell hardness value of 75. 7 BHN, and the Brinell hardness value at TMAZ with tool rotation speed parameters of 1208 rpm, welding speed of 65 mm/min, tool tilt angle of 2.5°, and concave shoulder angle of 2° with a Brinell hardness value of 74.7 BHN.
PEMANFAATAN TRICHODERMA DAN AIR KOLAM BUDIDAYA UDANG VANAMEI SEBAGAI SUBSTITUEN MEDIA HIDROPONIK TANAMAN PAKCOY Sutarmaan Sutarman; M Fadil; Lukman Hudi; Sriyono Sriyono; Syarifa R N; Mulyadi Mulyadi
Jurnal Agrotek Tropika Vol 11, No 3 (2023): JURNAL AGROTEK TROPIKA VOL 11, Agustus 2023
Publisher : Departement of Agrotechnology, Agriculture Faculty, Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jat.v11i3.6560

Abstract

Penelitian ini dilakukan untuk  mengetahui  respons tanaman pakcoy (Brassica rappa) terhadap kinerja konsorsium Trichodermayang diformulasi dalam tepung sekam dan air kolam budidaya udang Vaname sebagai substituen media tanam hidroponik. Kegiatan dilangsungkan di Tlocor-Tanjungsari, Jabon, Sidoarjo, September-Desember 2022.   Empat perlakuan dalam percobaan ini disusun dalam Rancangan Acak Lengkap yang terdiri atas AB-Mix 5.000 ppm, AB-Mix 2.500 ppm + Trichoderma, AB-Mix 2.500 ppm + Trichoderma dan air kolam 20%, dan Trichoderma dan air kolam 20%. Total satuan percobaan 20 yang masing-masing terdiri atas delapan tanaman dalam satu baki ukuran 20x40 cm. Varibel yang diamati tinggi, jumlah,  dan luas daun 10 dan 20 hari setelah transplanting, serta bobot panen. Analisis ragam (ANOVA) dilakukan terhadap semua data; untuk mengetahui perbedaan antar perlakuan dilakukan uji BNT 5%.  Penggunaan Trichoderma yang dikombinasikan dengan air kolam dan dengan AB-Mix berpengaruh terhadap tinggi, jumlah daun, luas daun, serta bobot segar panen tanaman pakcoy. Aplikasi konsorsiumTrichoderma dan bersama-sama dengan pemberian airkolam  tambak mampu mensubtitusi sebanyak 50 % konsentrasi standard AB-Mix sebagai  nutrisi berupa senyawa kimia anorganik dalam budidaya pakcoy secara hidroponik. 
Capacity and power analysis on inclined screw conveyor using DEM simulation Ahmad Faishol; Mulyadi; Edi Widodo
Journal of Energy, Mechanical, Material, and Manufacturing Engineering Vol. 8 No. 1 (2023)
Publisher : University of Muhammadiyah Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22219/jemmme.v8i1.25229

Abstract

DEM is a method based on the theory of molecular dynamics that can simulate the movement of granular materials. One of the advantages of this method is it can simulate accurately without creating a real object. This study aims to determine how much influence the inclination of the screw conveyor has on the capacity and power of the motor. Corn shelled was used as a test with continuous filling of 1000 ft3/hour for 20 seconds, while modeling by screw conveyor 2 meter long at positions 00, 200 and 450 with variations in speed of 50 rpm, 75 rpm and 100 rpm. Screw conveyor mass flow and torque data are taken for analysis. The DEM simulation results at a speed of 100 rpm with inclination of 00 is 21,2 ton/hour and the required power of 1.58 HP. Different results are obtained in modelling with an inclination of 450, the capacity drops to 8,6 ton/hour with the required power of 11.8 HP. It can be seen that the capacity reduction due to inclination reaches more than 50% with a significant increase in power.
Optimization of Friction Stir Welding Parameters for AA6061-T651 Aluminum Alloy: Defect Analysis and Process Improvement Mulyadi; Rachmat Firdaus; Rahmania Sri Untari
Academia Open Vol 8 No 1 (2023): June
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/acopen.8.2023.6665

Abstract

Friction Stir Welding (FSW) is an eco-friendly process known for high-quality joints without filler metal. This study investigated the physical properties of FSW-welded joints in AA6061-T651 aluminum alloy by varying the concave shoulder angle. Optimal process parameters were determined through Taguchi optimization using an Orthogonal Array design. Macro and micro testing revealed overlap defects, kissing bond defects, and wormholes in some samples. Systematic experimentation identified key parameters to avoid defects, including tool rotation speed, welding speed, tool tilt angle, tool indentation angle, and shoulder depth. Visual inspection and microstructural analysis played a crucial role in assessing weld quality. Optimizing welding parameters, such as rotational speed, welding speed, temperature, and tool geometry, was highlighted as crucial for defect-free joints. The study offers valuable insights for researchers and professionals in the field, promoting the advancement and application of FSW in aluminum alloy welding. Highlight: FSW: An environmentally friendly welding process with good joint quality. Defect Analysis: Identification of overlap defects, kissing bond defects, and wormholes in welded joints. Process Optimization: Determination of optimal parameters to avoid defects, including tool rotation speed, welding speed, tool tilt angle, tool indentation angle, and shoulder depth. Keyword: Friction Stir Welding, AA6061-T651 Aluminum Alloy, Welded Joint Analysis, Process Optimization, Defect Prevention
The impact of adding PH adjuster additives on the performance of the radiator in 160 cc Vario motorcycles Naufal Rezza Qur’anal; Ali Akbar; Mulyadi
JTTM : Jurnal Terapan Teknik Mesin Vol 4 No 2 (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.v4i2.654

Abstract

The vehicle's power comes from the engine, which uses combustion to transform the chemical energy of the fuel into mechanical energy. The combustion temperature will have an impact on the engine's operating temperature if this situation is not adequately cooled. According to some literature, the PH adjuster additive is a combination of chemicals that works to raise the PH and alkalinity of water to improve the state of the water atoms for the cooling process. However, the process of cooling a vehicle radiator with water from the engine is very hot, so further study is required. Additionally, this PH adjuster may condition the water to your specifications. The purpose of this study is to ascertain the outcome of adding the PH adjuster additive composition to the radiator water of the 160 cc Vario motorcycle. The approach is a descriptive methodology based on the outcomes of experiments. According to research based on the experiments carried out in this study, adding 3% PH Adjuster additives at 1000 rpm will produce the best engine performance. The amount of additives added also had an impact on the radiator performance of the 160 cc Vario motorcycle
Pemetaan Potensi Ekonomi Sirkular Berbasis Produk Samping Perternakan dan Pertanian Desa Gendro, Kec Tutur, Kab Pasuruan Hana Catur Wahyuni; Mulyadi Mulyadi; Listiari Hendraningsih; Sutarman Sutarman; Dwi Putri Maulidhiyah Firnanda; Nur Aura Aulia Nisa; Adinda Dwi Cahayani; Achmad Lutfi Rahmawan
KREATIF: Jurnal Pengabdian Masyarakat Nusantara Vol. 5 No. 4 (2025): Jurnal Pengabdian Masyarakat Nusantara
Publisher : Pusat Riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/kreatif.v5i4.8762

Abstract

This community service activity aims to map the circular economy potential based on by-products from the livestock and agricultural sectors in Gendro Village, Tutur District, Pasuruan Regency. The method used is a participatory approach (Participatory Rural Appraisal / PRA) through field observations, interviews, and focus group discussions with local farmers and ranchers. The data obtained was analyzed descriptively, quantitatively, and qualitatively to identify waste potential, its economic value, and opportunities for integration between sectors. The mapping results showed that out of 17 dairy farmers with a total of 117 cows, the average milk production reached ±2,800 liters per day, while cow manure waste reached 3.5 tons per day. About 60% of farmers have utilized this waste into organic fertilizer or biogas, while the rest is still disposed of into waterways. On the other hand, from 12 farmers with a total land area of 6.6 hectares, the harvest yield was around 90 tons per planting season, with agricultural waste reaching 80 tons. The ratio of waste to crop yield reaches 89%, indicating high potential for processing into value-added products such as compost, liquid fertilizer, and fermented feed. The integration of these two sectors demonstrates a natural closed-loop system at the village level, where agricultural waste can be used as feed, and livestock manure becomes organic fertilizer for agricultural land. The implementation of this circular economy model has the potential to generate additional economic value of IDR 45–60 million per year, reduce production costs by 20–30%, and reduce environmental pollution. Thus, Gendro Village has a great opportunity to be developed as a pilot village for a circular economy based on an integrated agroecosystem that supports food security and environmental sustainability
Co-Authors Achmad Lutfi Rahmawan Adinda Dwi Cahayani Ahmad Faishol Akhmad Surya Wijianto Ali Akbar Arasy Fahruddin A’rasy Fachruddin A’rasy Fahruddin Dwi Putri Maulidhiyah Firnanda Edi Widodo Eko Siswono Erwin Susetyo Hadi Erwin Yuli Susanto Fajar Syahril Kirom Hana Catur Wahyuni Iswanto Iswanto Listiari Hendraningsih Lukman Hudi M Fadil Mochammad Alim Huda Mochammad Nur Rizki Mohammad Sandoyo Adamsyah Naufal Rezza Qur’anal Noerdianto Noerdianto Nur Aura Aulia Nisa Prantasi Harmi Tjahjanti Rachmat Firdaus Rahmania Sri Untari Sriyono Sriyono Sutarman . Syarifa R N