Article Per Year (5 Year)
p-Index From 2021 - 2026
3.349
P-Index
This Author published in this journals
All Journal Media Mesin: Majalah Teknik Mesin Jurnal METTEK (Jurnal Ilmiah Nasional Dalam Bidang Ilmu 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 Teknik Mesin Indonesia Otopro ARMATUR : Artikel Teknik Mesin dan Manufaktur Indonesian Journal of Innovation Studies PELS (Procedia of Engineering and Life Science) Journal Of Engineering Sciences (Improsci) Dharmakayana: Journal of scientists, engineers, educators and scientific activists related to society development Academia Open
Edi Widodo
Program Studi Teknik Mesin, Universitas Muhammadiyah Sidoarjo
Aerospace Engineering Agriculture, Biological Sciences & Forestry Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering Medicine & Pharmacology Public Health Social Sciences

Published : 29 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 29 Documents
Search

 1   2   3 
Permanent Magnet Generator Design With Stable Output Under Variable Speed: Desain Generator Magnet Permanen dengan Output Stabil pada Kecepatan Variabel Mochamad Aldhy Saputro Alamsyah; A’rasy Fahruddin; Mulyadi; Edi Widodo
Indonesian Journal of Innovation Studies Vol. 27 No. 1 (2026): January
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/ijins.v27i1.2081

Abstract

General Background: Electrical energy demand continues to increase, requiring reliable generation systems with efficient performance. Specific Background: Permanent magnet synchronous generators are widely used due to their simplicity and ability to operate at low speeds. Knowledge Gap: Previous studies have not fully explored optimal design parameters for achieving stable output under varying rotational conditions. Aims: This study aims to design and analyze a permanent magnet generator to evaluate its electrical output characteristics. Results: The generator produces measurable voltage, current, and power under different rotational speeds, demonstrating consistent performance trends across testing conditions. The output increases proportionally with rotational speed, indicating stable operational behavior. Novelty: The study presents a practical implementation of generator design with systematic testing under variable speed conditions. Implications: The results provide a reference for developing small-scale power generation systems with stable electrical output for various applications. Keywords: Permanent Magnet Generator, Electrical Energy, Generator Design, Output Voltage, Rotational Speed Key Findings Highlights Electrical output shows proportional relationship with rotational variation System testing confirms consistent behavior across multiple operating conditions Prototype demonstrates feasibility for small scale energy conversion applications
The Effect of Alkalization on the Mechanical Properties of Sansevieria Fiber Bio-Composit: Pengaruh Alkali Basa Terhadap Sifat Mekanik Bio-Komposit Serat Sansevieria Edi Widodo; Ali Akbar; Boy Isma Putra
Academia Open Vol. 8 No. 2 (2023): December
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/acopen.8.2023.7237

Abstract

Alkali treatment of natural fibers has a role in removing hemicellulose and lignin layers. This layer prevents the matrix from bonding with the natural fiber cellulose structure. The use of an inappropriate type of alkali will reduce its effectiveness and can even damage the cellulose layer. This study compared the effectiveness of alkaline NaOH, CaOH and KOH in removing lignin and hemicellulose and their ability to maintain cellulose content. The use of the immersion method in alkaline solutions is well controlled. The FTIR characterization test was used to detect functional group changes, the TGV test to detect heat resistance ability, the XRD test to detect structural changes in crystalline and amorphous properties of sansevieria natural fibers. Furthermore, the tensile test to determine the effect of alkaline treatment on changes in mechanical strength Tensile strength. From the test results it was found that the alkaline NaOH gave the best characteristics by detecting the presence of cellulose, tensile strength and the nature of the crystalline atomic structure. Highlights: Effectiveness of Alkali Types: Comparison of NaOH, CaOH, and KOH effectiveness in removing lignin and hemicellulose while preserving cellulose content. Characterization Techniques: FTIR, TGA, and XRD tests used for functional group changes, heat resistance, and structural properties evaluation. NaOH Superiority: Alkaline NaOH treatment demonstrated best results in maintaining cellulose, enhancing tensile strength, and influencing atomic structure. Keywords: Alkali treatment, Natural fibers, Lignin removal, Cellulose preservation, Tensile strength.
ANALISA VARIASI SUHU PADA PROSES DESTILASI BIOETANOL DARI BIJI JAGUNG Rangga Bayu; A’rasy Fahruddin; Rachmat Firdaus; Edi Widodo
ARMATUR : Artikel Teknik Mesin & Manufaktur Vol. 7 No. 1 (2026): Jurnal Armatur
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/armatur.v7i1.10158

Abstract

The increasing demand for renewable energy has encouraged research into the development of bioethanol from abundant local raw materials, one of which is corn kernels which are rich in starch. This study was conducted to determine the effect of variations in distillation temperature on the volume and purity of bioethanol produced from fermented corn kernels. The research process begins with material preparation, namely sowing corn kernels until they germinate, grinding, then fermenting with yeast (Saccharomyces cerevisiae) for 7 days. The fermentation results were then distilled for 30 minutes using a simple distillation apparatus with three temperature variations, namely 70°C, 80°C, and 90°C. The volume of bioethanol was measured using a measuring cup, while the ethanol content was tested using an alcohol meter. The results showed that at a temperature of 70°C a volume of 130 ml of bioethanol was obtained with a purity of 67%, at a temperature of 80°C a volume of 168 ml was obtained with the highest purity of 83%, while at a temperature of 90°C the volume increased to 191 ml but the purity decreased to 73%. The data demonstrates a trade-off between ethanol volume and purity, where higher heating temperatures increase volume, but purity does not always increase. This study concludes that the optimal distillation temperature is 80°C, as lower energy can produce bioethanol with a combination of a relatively large volume and the highest purity.
Four Blade Grass Chopper Machine Produces Highest Cutting Capacity: Mesin Pemotong Rumput Empat Pisau Memiliki Kapasitas Pemotongan Tertinggi Virdo Vireta Yudha A.P; Edi Widodo
Indonesian Journal of Innovation Studies Vol. 26 No. 1 (2025): January
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/ijins.v26i1.2167

Abstract

General Background: Grass chopper machines are widely used in livestock farming to support feed preparation and reduce manual labor requirements. Specific Background: Elephant grass is commonly utilized as the primary feed for cattle; however, many farmers still apply conventional cutting methods that require more time and labor. Knowledge Gap: Previous practices have not sufficiently examined the relationship between blade quantity and machine cutting capacity in grass chopper systems operating at different rotational speeds. Aims: This study aimed to design a grass chopper machine and evaluate the performance of blade variations on cutting capacity and fuel consumption. Results: Experimental testing was conducted using 2, 3, and 4 blades at rotational speeds of 1900 RPM, 2500 RPM, and 3000 RPM. The machine using 4 blades at 3000 RPM produced the highest cutting capacity of 5.845 kg/minute with fuel consumption of 88.5 ml/minute, while the 3-blade configuration produced 4.370 kg/minute and the 2-blade configuration produced 3.121 kg/minute. Novelty: The study presents a grass chopper machine design with interchangeable blade variations to compare cutting performance and fuel consumption under identical operational conditions. Implications: The proposed machine can support livestock farmers by providing faster grass chopping processes, reducing labor demands, and increasing feed preparation capacity for cattle farming operations.HIghlights: Four cutting blades generated the largest grass chopping output at 3000 RPM. Fuel consumption increased consistently with higher rotational speed settings. Shorter chopping dimensions were produced by configurations using additional blades. Keywords: Grass Chopper Machine; Blade Variation; Cutting Capacity; Livestock Feed; Mechanical Design
Pemberdayaan Siswa SMA melalui Pelatihan Pemasaran Digital di Era Industri 4.0 di Sidoarjo Edi Widodo; Mulyadi Mulyadi; Rahmat Firdaus
Dharmakayana Vol 2 No 2 (2025): November : Dharmakayana: Journal of scientists, engineers, educators and scientif
Publisher : Program Studi Teknik Mesin, Fakultas Teknik Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/dk.v2i2.44171

Abstract

Mastery of design technology and digital marketing is a crucial skill in the era of Industry 4.0. These competencies are especially important for the younger generation to support product development and foster entrepreneurial mindsets. This community engagement program aimed to provide training on digital marketing strategies to senior high school and vocational school students in Sidoarjo Regency. Three schools actively participated in the program: SMK Muhammadiyah 3 Ngoro, SMK Trisakti Sidoarjo, and SMK Krian. The activities included the provision of training modules, program socialization, intensive training sessions, and continued mentoring. The training materials focused on content planning, utilization of social media, business account management, and digital promotion strategies tailored to student-created products. The results of the program indicated an increased understanding among participants of both the concepts and practices of digital marketing, as well as the emergence of student-led initiatives to build school-based brands and digital promotional accounts.
Comparing The Tear Resistance Of PVC Sheets With Dioctyl Phthalate (DOP) And Epoxydized Soybean Oil (ESBO) Plasticizers Prantasi Harmi Tjahjanti; Riki Nanda Setyo; Edi Widodo; Annisa Syakina
Jurnal Improsci Vol 3 No 5 (2026): Vol 3 No 5 April 2026
Publisher : Ann Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62885/improsci.v3i5.1209

Abstract

Background. One of the PVC (Polyvinyl Chloride) products is a raincoat whose manufacture has been mixed with a DOP (Dioctyl Phthalate) plasticizer. The use of DOP in PVC since 1982 has been indicated as a chemical harmful to human health, especially causing gene mutations in the chromosomes of female eggs and infertility in men, as well as interfering with health. In addition, DOP is quite expensive. Aims. The purpose of the study is to replace DOP with the Epoxidized Soybean Oil (ESBO) plasticizer, which is non-carcinogenic, non-toxic, recyclable, and biodegradable. Methods. The PVC sheet products are tear-resistant and tested using the Elmendorf method. The mixing observed was analyzed using Fourier Transform Infrared (FTIR) spectroscopy. Result. The results using 100% ESBO meet the standard, even though the tear strength is still lower than with 100% DOP. Conclusion. FTIR analysis shows that a mixture of DOP and ESBO with a 50:50 ratio shows that other ingredients appear that do not interfere with the mixing process as a whole.
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.
Analysis of the Effect of Using a Truck Cover and Wind Deflector on the Drag Coefficient of Trucks Moch Miqdar Efendi; Arasy Fahruddin; Windarta Windarta; Edi Widodo; Iswanto Iswanto
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.v14i2.4193

Abstract

Penelitian ini menganalisis pengaruh penggunaan tutup bak dan deflektor angin terhadap koefisien drag (Cd) pada truk menggunakan simulasi terowongan angin. Penelitian meliputi empat konfigurasi: truk tanpa modifikasi, truk dengan tutup bak, truk dengan deflektor angin, dan kombinasi keduanya. Variabel bebas meliputi jenis modifikasi dan kecepatan angin (7 m/s, 8,5 m/s, 10 m/s), sedangkan variabel yang terikat adalah nilai koefisien drag (Cd). Hasil percobaan menunjukkan bahwa kombinasi tutup bak dan deflektor angin memberikan penurunan Cd paling signifikan hingga 34% dibandingkan kondisi tanpa modifikasi, diikuti oleh penggunaan individu tutup bak (16%) dan deflektor angin (24%). Penurunan CD ini mengurangi gaya drag secara signifikan, meningkatkan efisiensi aerodinamika, serta mengurangi konsumsi bahan bakar. Dengan demikian, modifikasi ini direkomendasikan sebagai solusi praktis untuk meningkatkan efisiensi kendaraan niaga dan mendukung ekosistem.
Co-Authors A'rasy Fahruddin Ahmad Faishol Ahmad Rehan Ardiansyah Akhmad Ahfas Ali Akbar Annisa Syakina Arya Rudi Nasution Boy Isma Putra Dwi Yuliyanto Eko Prasetio Putro Faisal Ansori Fajar Syahril Kirom Herman Herman Iis Siti Aisyah Ilham Dwiyoga Iswanto Iswanto Miftahul Huda Misbakh Moch Miqdar Efendi Mochamad Aldhy Saputro Alamsyah Mohammad Dani Iswanto Muhammad Jamaluddin Anwar Muhammad Marzuky Saleh Mulyadi Mulyadi Nur Haizal Ariffin Prantasi Harmi Tjahjanti Rachmat Firdaus Rahmat Firdaus Rangga Bayu Rega Yuan Pradhana Rendra Dani Firmansyah Ridho Choirul Anam Riki Nanda Setyo Rio Putra Permadi Rizky Dwi Jayanto Subroto Syahruddin Taufik Afandi Virdo Vireta Yudha A.P Windarta Windarta