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All Journal SINTEK JURNAL: Jurnal Ilmiah Teknik Mesin R.E.M (Rekyasa Energi Manufaktur) Jurnal Turbo : Jurnal Program Studi Teknik Mesin Journal of Energy, Mechanical, Material and Manufacturing Engineering Abdimas Talenta : Jurnal Pengabdian Kepada Masyarakat Jurnal Agrotek Tropika Jurnal Teknik Mesin Indonesia JTTM: Jurnal Terapan Teknik Mesin Sinar Sang Surya: Jurnal Pusat Pengabdian kepada Masyarakat Seminar Nasional Hasil Riset dan Pengabdian (SNHRP) Indonesian Journal of Innovation Studies Journal for Technology and Science Sainstech Nusantara Jurnal Pengabdian Masyarakat Manage Dharmakayana: Journal of scientists, engineers, educators and scientific activists related to society development KREATIF: Jurnal Pengabdian Masyarakat Nusantara Academia Open TEKNOSAINS: Jurnal Sains, Teknologi dan Informatika
Mulyadi Mulyadi
Program Studi Teknik Mesin , Universitas Muhammadiyah Sidoarjo
Aerospace Engineering Agriculture, Biological Sciences & Forestry 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 Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering Medicine & Pharmacology Physics Public Health Social Sciences Other

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Exhaust gas emissions in daihatsu granmax vehicles based on the year of manufacture Fikri Setiawan; Ali Akbar; Mulyadi
TEKNOSAINS : Jurnal Sains, Teknologi dan Informatika Vol 11 No 1 (2024): TEKNOSAINS: Jurnal Sains, Teknologi dan Informatika
Publisher : LPPMPK- Universitas Muhammadiyah Cileungsi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37373/tekno.v11i1.945

Abstract

Air pollution is a condition caused by exhaust gas from motorized vehicles operating on the highway. To minimize greater air pollution, the government is making preventive efforts by carrying out periodic vehicle emission tests which are currently being carried out. carry out transport targeting vehicles. The research aims to determine the year of the vehicle that produces the dominant CO (carbon monoxide) and HC (hydrocarbon) exhaust emissions which were tested based on vehicle year from 2017 to 2022, with the type of gasoline-fueled vehicle, in this case the Daihatsu granmax. The method used is experimental using Manova analysis of 30 samples used with variations in data taken from testing CO and HC exhaust emissions on 30 samples with 5 vehicles each in each year of production. The results of the research that has been carried out show that the emission test results on sample data show the highest CO exhaust emissions in vehicles in 2017 and the lowest in vehicles in 2021, while the HC test results in vehicles in 2017 are the highest and continue to decline to the lowest point in vehicles in 2022, this provides a conclusion: Vehicles produced longer have the potential to produce high exhaust emissions, while vehicles produced younger do not cause exhaust emissions
Penguatan Daya Saing UMKM Telur Asin Ayu melalui Pelatihan Diversifikasi Produk, Pemasaran Digital, dan Dukungan Peralatan Produksi Sigit Hermawan; Mulyadi; Lukman Hudi; Sulton Kamal Mustofa; Galang Amrulloh
Jurnal Pengabdian Masyarakat Manage Vol. 7 No. 2 (2026): Agustus
Publisher : Universitas Muhammadiyah Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32528/manage.v7i2.5766

Abstract

Kegiatan pengabdian kepada masyarakat ini bertujuan untuk memperkuat daya saing UMKM Telur Asin AYU melalui diversifikasi produk, pelatihan pemasaran digital, dan dukungan peralatan produksi. Permasalahan utama yang dihadapi mitra meliputi keterbatasan variasi produk, kapasitas, dan efisiensi produksi yang belum optimal. Metode pelaksanaan kegiatan terdiri atas tiga tahapan utama, yaitu persiapan, pelaksanaan, dan evaluasi. Pada tahap persiapan dilakukan need assessment melalui survei dan diskusi mendalam dengan pemilik UMKM untuk mengidentifikasi kebutuhan dan permasalahan usaha, dilanjutkan dengan perencanaan program serta pemilihan metode dan pendekatan yang tepat. Tahap pelaksanaan meliputi pelatihan dan pendampingan diversifikasi produk yakni telur asin oven dan bandeng presto, pemasran digital melalui marketplace, pengadaan mesin oven gas, dan pengadaan panci presto. Tahap evaluasi dilakukan secara komprehensif melalui pengujian efektivitas mesin oven telur asin dan panci presto, evaluasi proses, serta pengukuran tingkat kepuasan mitra menggunakan instrumen kuantitatif berbasis skala likert. Hasil kegiatan menunjukkan peningkatan kapasitas produksi, bertambahnya varian produk berupa telur asin oven dan bandeng presto, meningkatnya pemahaman mitra terhadap pemasaran digital, serta telah masuknya produk UMKM Telur Asin AYU ke dalam marketplace TikTok Shop sebagai saluran pemasaran digital. Program ini diharapkan memberikan dampak berkelanjutan melalui rencana tindak lanjut berupa pendampingan lanjutan dan komunikasi berkelanjutan antara tim abdimas dan mitra usaha.
Computer-Aided Design (CAD) Training for Appropriate Technology (TTG) to Enhance the Competence of Vocational High School Students in East Java Mulyadi; Edi Widodo; A'rasy Fahruddin; Akhmad Ahfas
ABDIMAS TALENTA: Jurnal Pengabdian Kepada Masyarakat Vol. 10 No. 2 (2025): ABDIMAS TALENTA: Jurnal Pengabdian Kepada Masyarakat
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/abdimastalenta.v10i2.22448

Abstract

This community service programme aimed to enhance the competencies of vocational high school students in East Java through Computer-Aided Design (CAD) training for Appropriate Technology (AT). Held on 13 June 2025 at the Mechanical Engineering Study Programme, Universitas Muhammadiyah Sidoarjo (Umsida), the activity was part of the Institutional Community Service Grant initiative. A total of 20 students from four partner schools participated, with each school sending five representatives. The training focused on developing students’ technical skills in designing AT products using CAD software and simulating basic fluid mechanics relevant to product development. Expert instructors, certified by the National Professional Certification Board (BNSP), delivered hands-on sessions to ensure strong practical learning outcomes. The results showed significant improvements in students’ technical abilities in CAD-based product design, a better understanding of engineering concepts, and greater readiness to apply these skills in industry-related contexts. This programme represents a strategic effort to bridge the gap between vocational school graduates’ competencies and industry demands, while also fostering innovation and the potential for technology-based entrepreneurship.
Rancang bangun pembuatan mesin cetak pelet pakan ternak Ahmad Rehan Ardiansyah; Edi Widodo; Mulyadi
Jurnal Teknik Mesin Indonesia Vol 21 No 1 (2026): April
Publisher : BKS-TM Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.71452/jtmi2112026104

Abstract

A livestock feed pellet machine is a device designed to improve the efficiency of animal feed production processes. Manual feed production generally requires a longer processing time and often produces pellets with non-uniform sizes. This study aims to design and develop a livestock feed pellet machine with a production capacity of 20 kg/h, focusing on the structural design of the machine frame and screw extruder as the primary components in the pellet-forming process. The research methodology includes field observation, literature review, and a design process based on the VDI 2222 design method. The design process was carried out using SolidWorks software, involving the selection of main components such as an AC electric motor, a pulley and V-belt transmission system, a hopper, a machine frame, and a screw extruder. Structural strength analysis was conducted using the Finite Element Analysis (FEA) method through SolidWorks Simulation under a static load of 150 kg to evaluate the distribution of stress, strain, displacement, and safety factor. The simulation results show that the maximum stress on the machine frame is 72.6 MPa, with a maximum displacement of 9.516 mm and a minimum safety factor of 1.689, indicating that the stress value is still below the material yield strength and the frame structure is considered safe. Meanwhile, the screw extruder component experiences a maximum stress of 6.14 × 10⁴ N/m², a maximum displacement of 8.313 × 10⁻⁶ mm, and a maximum strain of 1.804 × 10⁻⁷, indicating that the resulting deformation is very small and remains within the elastic limit of the material. Based on the design and structural analysis results, the developed livestock feed pellet machine has a safe and stable structural design and is capable of improving the efficiency of feed production. This machine is expected to serve as an alternative solution for farmers to independently produce livestock feed at a more economical cost.
Effect of Alkali Treatment Duration on Tensile and Flexural Properties of Pineapple Fiber Composites (Ananas comosus) Ricky Kurniawan; Edi Widodo; Ali Akbar; Mulyadi Mulyadi; Sulis Yulianto; Dewi Sartika
SINTEK JURNAL: Jurnal Ilmiah Teknik Mesin Vol. 19 No. 2 (2025): SINTEK JURNAL
Publisher : Faculty of Engineering, Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/sintek.19.2.164-180

Abstract

Pineapple leaf fiber is a natural fiber with high cellulose content, making it a promising reinforcement for polymer composites. This study introduces novelty by systematically analyzing the effect of varying 5% NaOH alkali soaking durations (2, 4, 8, 16, and 24 hours) on the tensile and flexural properties of unidirectional pineapple fiber-reinforced polyester composites a range and comprehensive comparison not extensively explored previously. Composites with a 30% fiber volume fraction were fabricated using the hand lay-up method. Tensile and three-point bending tests were conducted according to ASTM D638 and D790, respectively. Results indicated that a 24-hour alkali treatment yielded the highest tensile strength of 44.82 MPa with a strain of 0.1080%, suggesting optimal fiber-matrix adhesion. Conversely, the highest flexural strength of 122 MPa and a modulus of 14,616 MPa were achieved after 16 hours of soaking. Therefore, the optimal alkali treatment duration depends on the targeted mechanical property: 24 hours for maximum tensile strength and 16 hours for optimal flexural performance. These findings aid in enhancing the mechanical properties of pineapple fiber composites through controlled alkali treatment, with potential applications in lightweight automotive panels, interior components, and sustainable construction materials where a balance between tensile and flexural properties is crucial.
Analisis Nilai Elongasi Material Terhadap Cracksheet Pada Proses Deep drawing Nozzle pada Unit Evaporator bhima endra wira yudha; Ali Akbar; Rachmat Firdaus; Mulyadi Mulyadi
TURBO [Tulisan Riset Berbasis Online] Vol 14 No 2 (2025): TURBO: Jurnal Program Studi Teknik Mesin
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v14i2.4401

Abstract

Penelitian ini bertujuan menganalisis nilai elongasi pada material Galvanized (DX51D, DX54D, DX53D) dan Stainless Steel (SUS304, SUS316, SUS441) sebagai parameter utama dalam proses deep drawing nozzle unit evaporator. Uji tarik dilakukan untuk menentukan kemampuan deformasi plastis tanpa menyebabkan keretakan, serta pencarian indikasi cracksheet yang dapat terjadi selama proses pembentukan. Hasil menunjukkan bahwa material stainless steel, khususnya SUS304 dan SUS441, memiliki nilai elongasi tertinggi sebesar 45%, menunjukkan ketahanan unggul terhadap deformasi ekstrem. Sementara itu, DX54D menjadi galvanis dengan elongasi tertinggi (36%) dan tidak mengalami retak saat deep drawing, berbeda dengan DX51D dan DX53D yang menunjukkan gejala cracksheet. Batas elongasi minimum untuk menghindari kegagalan struktural pada deep drawing ditentukan sekitar 30%. Pemilihan material dengan elongasi tinggi serta optimalisasi parameter proses menjadi krusial dalam menjamin kualitas dan efisiensi produksi. Hasil ini memberikan dasar untuk menentukan material optimal berdasarkan kombinasi performa teknis dan efisiensi biaya.
Evaluasi Pemilihan Material pada Pemotong Kertas Manual Kapasitas Besar untuk Optimalisasi Desain Produk Lokal pada Komponen Pisau dan Rangka Iswanto Iswanto; Agung Budy Wijoyo; Mulyadi Mulyadi; A’rasy Fahruddin
TURBO [Tulisan Riset Berbasis Online] Vol 14 No 2 (2025): TURBO: Jurnal Program Studi Teknik Mesin
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v14i2.4424

Abstract

Penelitian ini mengkaji pemilihan material pada pemotong kertas manual kapasitas besar melalui pendekatan berbasis literatur dan data sekunder, dengan mengacu pada konfigurasi umum produk yang telah tersedia di pasaran. Fokus diarahkan pada analisis karakteristik teknis material dua komponen utama—pisau dan rangka—guna merumuskan rekomendasi desain produk lokal yang efisien, andal, dan tetap ekonomis. Analisis difokuskan pada perbandingan teknis material secara komparatif dan evaluasi multi-kriteria melalui weighted decision matrix. Hasil menunjukkan bahwa material seperti baja perkakas D2 dan SKD11, serta baja paduan rendah solid, memberikan performa unggul pada produk profesional, namun tidak efisien secara biaya untuk skala UMKM. Alternatif material seperti SK5 untuk pisau dan AISI 1020 untuk rangka dinilai mampu memberikan kompromi optimal antara performa teknis dan efisiensi biaya, dengan tetap mempertimbangkan ketersediaan lokal dan kemudahan manufaktur. Kajian ini memberikan kontribusi terhadap perancangan ulang pemotong kertas berbasis prinsip rekayasa material yang adaptif terhadap kebutuhan industri nasional skala kecil dan menengah.
Pengaruh Variasi Jarak Nosel dan Kecepatan Udara Inlet terhadap Tekanan dan Kecepatan Hisap pada Pompa Vakum Jet Ejector Arasy Fahruddin; Lukman Hudi; Bambang Surono; Mulyadi Mulyadi
TURBO [Tulisan Riset Berbasis Online] Vol 15 No 1 (2026): TURBO: Jurnal Program Studi Teknik Mesin
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v15i1.5104

Abstract

This study aims to analyze the effect of variations in nozzle spacing and inlet air velocity on the vacuum pressure and flow velocity distribution in a jet ejector vacuum pump. The method used is a numerical simulation based on Computational Fluid Dynamics (CFD) to obtain a detailed picture of the fluid flow characteristics in the system. The variations in nozzle spacing studied include 14 mm, 16 mm, and 18 mm, while the inlet air velocity is varied at 10 m/s, 15 m/s, and 20 m/s. The simulation results show that increasing the nozzle spacing tends to reduce the pressure on the venturi, thereby increasing the vacuum effect, with optimal conditions obtained at a distance of 18 mm and an inlet velocity of 10 m/s. Under these conditions, the pressure in the tube reaches the lowest value compared to other variations. However, increasing the inlet air velocity actually causes an increase in pressure in the tube due to turbulence and backflow, thereby reducing or even eliminating the vacuum effect at velocities of 15 m/s and 20 m/s. Overall, the performance of a jet ejector is greatly influenced by a combination of geometric and operational parameters.
Penguatan UMKM Telur Asin "AYU" Sidoarjo melalui Inovasi Teknologi Tepat Guna dan Analisis Keuangan Sigit Hermawan; Mulyadi Mulyadi; Syafa Vania Ulhaq; Sintha Wahyu Arista
SINAR SANG SURYA Vol 9 No 2 (2025): Agustus 2025
Publisher : UM Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/sss.v9i2.4514

Abstract

Abdimas ini dilakukan di UMKM Telur Asin AYU yang berlokasi di Kaliampoh RT 10 RW 03 Desa Kalipecabean, Kecamatan Candi, Kabupaten Sidoarjo. Kegiatan abdimas ini bertujuan untuk meningkatkan kapasitas manajemen dan produksi melalui pelatihan dan pendampingan di dua aspek utama, yaitu aspek keuangan dan aspek produksi. Permasalahan yang dihadapi mitra meliputi minimnya pemahaman perhitungan harga pokok penjualan (HPP) dan laporan keuangan usaha serta produk telur asin tidak dapat bertahan lama, maksimal 7 hari sudah berubah rasa. Metode pelaksanaan abdimas terdiri dari tahap persiapan, pelaksanaan, dan evaluasi. Hasil kegiatan menunjukkan bahwa UMKM telur Asin AYU mampu menghitung HPP, membuat laporan keuangan sederhana, dan mempunyai divesifikasi produk yakni adanya telur asin asap yang dapat bertahan lebih dari 14 hari, tidak berubah rasa. Abdimas ini diharapkan dapat meningkatkan produktivitas, kapasitas usaha, dan keberlanjutan UMKM Telur Asin AYU, serta menjadi model bagi UMKM sejenis di wilayah sekitar.
Design and Structural Analysis of Meatball Printing Machine with Arduino Uno-Based Security System for Operator Protection Bayu Surya Ramadhan; Edi Widodo; A'rasy Fahruddin; Mulyadi
SAINSTECH NUSANTARA Vol. 2 No. 4 (2025): November 2025
Publisher : Nusantara Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.71225/jstn.v2i4.119

Abstract

This study presents the design and structural verification of a compact meatball-forming machine that integrates an Arduino Uno–based operator protection system. A redesigned 500×500×1011 mm frame made of 20×20×1.5 mm hollow steel was modeled in SolidWorks 2024 and evaluated using finite element analysis (von Mises stress, displacement, strain, and safety factor) under an applied load representing a 30 kg operating condition. To reduce assembly complexity, two alternative concepts were assessed using Design for Assembly (DFA), and the most efficient configuration was selected for detailed development. The safety subsystem employs an HC-SR04 ultrasonic sensor facing the operator zone; when the detected distance falls below 10 cm, the controller triggers a warning indicator and enables protective control actions. The final concept achieved higher DFA efficiency (18%) than the initial concept (16%) while reducing material use and overall footprint. Structural simulations indicate a peak von Mises stress of 163.6 MPa, below the 250 MPa yield strength of ASTM A36 steel, a maximum displacement of 1.002 mm, and a minimum safety factor of 1.528, confirming adequate stiffness and margin against yielding. The proposed design combines adjustable forming via an iris mechanism with servo-driven cutting to improve process consistency while embedding real-time proximity sensing to enhance occupational safety.
Co-Authors A'rasy Fahruddin Achmad Basori Achmad Lutfi Rahmawan Achmad Surya Wijaya Adinda Dwi Cahayani Agung Budy Wijoyo Ahmad Faishol Ahmad Rehan Ardiansyah Akhmad Ahfas Akhmad Akhirudin Akhmad Surya Wijianto Ali Akbar Ali Akbar Ardhi Shefta Fernanda Arif Rachmandani Arya Hardi Alvian A’rasy Fachruddin Bagus Mulya Harun Bayu Kusuma Atmaja Bayu Surya Ramadhan bhima endra wira yudha Dewi Sartika Dhimas Wahyu Dwi Septian Dwi Putri Maulidhiyah Firnanda Edi Widodo Eko Siswono Erwin Susetyo Hadi Erwin Yuli Susanto Fajar Syahril Kirom Faris Ferdiansyah Fikri Setiawan Galang Amrulloh Hana Catur Wahyuni Irfan Dwi Farilla Iswanto Iswanto Listiari Hendraningsih Lukman Hudi M Fadil M. Hidayatur Rokhim Mochamad Aldhy Saputro Alamsyah Mochammad Alim Huda Mochammad Nur Rizki Mohamad Irvan Akif Setiawan Mohammad Sandoyo Adamsyah Muchamad Reysa Pahlewi Muhammad Alriz Nur Aftian Muhammad Anggie Cahya Saputra Muhammad Fiky Dharmawan Muhammad Iqbal Nur Fadillah Muhammad ‘Athif Istighfarian Nabil Azka Hanani Naufal Rezza Qur’anal Noerdianto Noerdianto Nur Aura Aulia Nisa Prantasi Harmi Tjahjanti Rachmat Firdaus Rahmania Sri Untari Rahmat Firdaus Rendy Rakhmad Fakhrizi Ricky Kurniawan Sigit Hermawan Sintha Wahyu Arista Sriyono Sulis Yulianto Sulton Kamal Mustofa Sulung Wibawansyah Surono, Bambang Sutarman . Syafa Vania Ulhaq Syarifa R N