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All Journal Teknik Mesin "TEKNOLOGI" Journal of Mechanical Engineering Education (Jurnal Pendidikan Teknik Mesin) VANOS Journal of Mechanical Engineering Education Abdimas Umtas : Jurnal Pengabdian kepada Masyarakat Jurnal Engine: Energi, Manufaktur, dan Material Jurnal Pendidikan Vokasi Otomotif Asean Journal of Science and Engineering (AJSE) IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) JURNAL ILMIAH TEKNIK INDUSTRI DAN INOVASI (JISI) Jurnal Abmas
Muhammad Noor, Ridwan Adam
Universitas Pendidikan Indonesia
Religion Agriculture, Biological Sciences & Forestry Arts Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Education Energy Engineering Industrial & Manufacturing Engineering Library & Information Science Materials Science & Nanotechnology Mechanical Engineering Social Sciences Transportation

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Development of Android-Based Starter Motor Learning Media for Improving Students 'Abilities and Knowing its Learning Motivated Achievements Ibnu Mubarak; Tatang Permana; Iyep Sutia; Rika Andriani; S Sriyono; Ridwan Adam MN
VANOS Journal of Mechanical Engineering Education Vol 6, No 1 (2021)
Publisher : Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30870/vanos.v6i1.9600

Abstract

This study aims to develop Android-based learning media to improve students' abilities regarding the reduction type starter motor system and to determine the acquisition of learning motivation. The method used is pre-experimental design in the form of one-group pretest-posttest, while media development uses the ADDIE method. The population of this study were students who contracted electricity courses. The results of this study indicate an increase in the learning outcomes of the Pre-Test and Post-Test which is significant with the acquisition of the significance test using the t test with a significance value of 0.000, this increase is due to the use of android-based learning media that has been made. So that this learning media has a good impact on increasing students' insight in using technology, especially Android for learning uses. In addition, the students' learning motivation on average is in the category motivated by this media.
Online And Offline Training Of Electric Vehicle Technology For Automotive Productive Teachers At Smkn Al Mufti, Subang Regency Ridwan Adam; Tatang Permana; Yusep Sukrawan
ABDIMAS: Jurnal Pengabdian Masyarakat Vol. 5 No. 1 (2022): ABDIMAS UMTAS: Jurnal Pengabdian Kepada Masyarakat
Publisher : LPPM Universitas Muhammadiyah Tasikmalaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (363.921 KB) | DOI: 10.35568/abdimas.v5i1.1659

Abstract

This study aims to improve competence by providing knowledge and skills regarding maintenance and repair of electric vehicle technology (electric vehicle technology) to automotive productive teachers at Al Mufti Vocational School, Subang Regency. The training uses multiple approaches to simplify, strengthen and apply. The approach used is persuasive, collaborative and participatory. The method used is discussion, lecture, question and answer, demonstration and practice on electric cars, electric motorcycles and decomposed components. The level of achievement based on knowledge and skills carried out by post-test and pretest as well as performance tests shows the achievement of competence of 80 percent, so it is hoped that participants can transfer this electric vehicle technology to students in anticipation of the development and transition of driving technology from internal combustion engines (ICE) to electric drive.
Effect of Voltage, Current, and Power on revolutions per minute in the brushless direct 3000-Watt current motor on E-Gokart Iqbal Imaduddin; Doni Fajar Ramadhan; Ridwan Adam Muhamad Noor
ASEAN Journal of Science and Engineering Vol 1, No 3 (2021): AJSE: December 2021
Publisher : Universitas Pendidikan Indonesia (UPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/ajse.v1i3.50677

Abstract

The internal combustion engine is a gasoline-powered internal combustion engine that is widely used in the world of transportation. Therefore, everyone is starting to think about developing alternative fuels that are fuel efficient, easy to upgrade, and better in terms of emissions. Vehicles with electric motors are one of the right solutions because they are more environmentally friendly and do not cause pollution when used. In this study, we will discuss the performance of the brushless DC electric motor that is applied to the Go-kart based on the voltage, current, and electrical power that occurs. The method used is measurement using software and experimental simulations. Based on the test results using Votol_V3 Voltage, current, power, and rotation per minute (rpm) have a relationship, the higher the rpm on the mid-drive type electric motor, the greater the current and power required.
IbM (Ipteks berbasis masyarakat) keterampilan teknologi las (kriya logam) pada pemuda/karang taruna desa Wahid Munawar; Mumu Komaro; Sriyono Sriyono; Ridwan Adam M. Noor
Jurnal Abmas Vol. 14 No. 1 (2014): Jurnal Abmas
Publisher : Universitas Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/abmas.v14i1.157

Abstract

Penelitian ini bertujuan untuk mengetahui bentuk pendidikan alternatif untuk pemuda/karang taruna desa. Penelitian menggunakan metode kualitatif, mengambil dua kelompok pemuda/karang taruna yang telah mengikuti pelatihan keterampilan teknologi (kriya logam). Informan terdiri dari tokoh pemuda dan ketua RW. Hasil penelitian menunjukkan bahwa bentuk pembelajaran alternatif adalah metode pendidikan orang dewasa atau andragogy. Proses pembelajaran dimulai dengan sharing pembelajaran, refleksi pengalaman hidup dan metode role play. Hasilnya 64% peserta pelatihan mengalami peningkatan keterampilan teknologi (kriya logam).
Analisis Tegangan Output Alternator Pada Variasi Beban Listrik Engine Diesel 4V21 Euro 4 Ade Permana; Yusep Sukrawan; Ridwan Adam Muhamad Noor
Jurnal Engine: Energi, Manufaktur, dan Material Vol. 10 No. 1 (2026)
Publisher : Universitas Proklamasi 45

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30588/jeemm.v10i1.2683

Abstract

The stability of alternator output voltage is important for maintaining modern diesel vehicle electrical systems, because additional loads such as headlights, cabin cooling, and audio systems can increase current demand and affect charging voltage. This study aims to analyze alternator output voltage under variations of electrical load on a vehicle with a 4V21 Euro 4 diesel engine. A field experiment was conducted on a vehicle with a 24-volt electrical system and the engine operating at idle speed. Data were collected using a scanner under three load conditions: no load at 0 W, medium load at 150 W, and full load with a reference power of 1,110 W. Each condition was tested five times, with a data collection duration of 20 minutes per test, conducted once per day for five days. The main parameter observed was alternator output voltage, while engine RPM and coolant temperature were recorded as supporting data. The results showed that the average alternator output voltage was 28.3 V under no-load conditions, 27.8 V under medium-load conditions, and 27.7 V under full-load conditions. The total voltage drop from no load to full load was 0.6 V. Engine RPM remained at an average of 651 rpm, and coolant temperature remained at 83.1°C. These results indicate that increasing electrical load reduces alternator output voltage; however, the decrease was relatively small, and the lowest voltage still met the operating range of the 24-volt charging system, indicating that the charging system operated properly under the tested load variations.
Analisis Pengaruh Drop Tegangan Baterai terhadap Waktu Starting pada Engine 4N15 Mitsubishi Triton Ade Angraini Nasution; Yusep Sukrawan; Ridwan Adam Muhamad Noor
Jurnal Engine: Energi, Manufaktur, dan Material Vol. 10 No. 1 (2026)
Publisher : Universitas Proklamasi 45

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30588/jeemm.v10i1.2691

Abstract

Starting performance in diesel engines is influenced by the battery’s ability to maintain voltage when the starter motor draws a high initial current. Excessive voltage drop can reduce cranking capability and affect the initial combustion process. This study aimed to analyze the effect of battery voltage drop on starting time in a Mitsubishi Triton equipped with a 4N15 diesel engine. The research used a field experimental method conducted directly on a vehicle with a 12-volt electrical system. Data were collected using a battery tester, scanner, and stopwatch through five tests consisting of three tests under normal operating conditions at 71–75 °C, one test under cold-engine conditions at 29 °C, and one test under hot-engine conditions at 89 °C. The main parameters observed were battery voltage drop and starting time. The results showed that normal operating conditions produced an average voltage drop of 3.25 V with an average starting time of 2.06 s. Cold-engine conditions at 29 °C produced the highest voltage drop of 4.23 V, while hot-engine conditions at 89 °C produced the lowest voltage drop of 3.08 V. The findings indicate that starting performance is influenced by voltage drop, battery condition, internal resistance, and CCA value. This study concludes that starting system analysis should consider voltage drop, minimum voltage during starting, and battery condition to obtain a more accurate analysis of starting performance.
PENGEMBANGAN INSTRUMEN ASESMEN KOGNITIF SISTEM AIR CONDITIONING KENDARAAN RINGAN Albiyan Niezar Rozi; Yusep Sukrawan; Ridwan Adam M. Noor
Jurnal Pendidikan Vokasi Otomotif Vol. 8 No. 2 (2026): (Mei)
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jpvo.v8i2.97901

Abstract

Abstract The dynamics of the automotive industry demand vocational graduates who are competent in diagnosing light vehicle Air Conditioning (A/C) system failures. However, existing assessment instruments are still dominated by memorization tests (Lower-Order Thinking Skills/LOTS) and have not optimally measured problem-solving abilities (Higher-Order Thinking Skills/HOTS). Therefore, this study aims to develop a valid and reliable HOTS-based cognitive assessment instrument for light vehicle A/C systems. This study uses the Research and Development (R&D) method of the Borg & Gall model, limited to four stages: preliminary study, product design, expert validation, and preliminary field testing. The resulting product is a set of 50 weighted multiple-choice questions. The content validation results by three experts showed a Content Validity Ratio (CVR) value of 1.00, meaning the instrument is theoretically valid. Furthermore, the preliminary empirical field test results on 35 students showed that 44 items (88%) were declared valid with a Kuder-Richardson 20 (KR-20) reliability coefficient of 0.872 (very high). This instrument shows excellent initial feasibility as an objective diagnostic tool, although it still requires large-scale testing for advanced psychometric parameter analysis. Abstrak Dinamika industri otomotif menuntut lulusan vokasi yang kompeten dalam mendiagnosis kerusakan sistem Air Conditioning (A/C) kendaraan ringan. Namun, instrumen asesmen yang ada saat ini masih didominasi oleh pengujian daya ingat (Lower-Order Thinking Skills/LOTS) dan belum mengukur kemampuan pemecahan masalah (Higher-Order Thinking Skills/HOTS) secara optimal. Oleh karena itu, penelitian ini bertujuan mengembangkan instrumen asesmen kognitif berbasis HOTS untuk sistem A/C kendaraan ringan yang valid dan reliabel. Penelitian ini menggunakan metode Research and Development (R&D) model Borg & Gall yang dibatasi pada empat tahap: studi pendahuluan, perancangan produk, validasi ahli, dan uji coba lapangan terbatas. Produk yang dihasilkan berupa 50 butir soal pilihan ganda berbobot. Hasil validasi isi oleh tiga pakar menunjukkan nilai Content Validity Ratio (CVR) sebesar 1,00, yang berarti instrumen sangat valid secara teoretis. Selanjutnya, hasil uji coba empiris terbatas pada 35 mahasiswa menunjukkan bahwa 44 butir soal (88%) dinyatakan valid dengan koefisien reliabilitas Kuder-Richardson 20 (KR-20) sebesar 0,872 (sangat tinggi). Instrumen ini menunjukkan kelayakan awal yang sangat baik sebagai alat ukur diagnostik yang objektif, meskipun masih memerlukan uji coba skala luas untuk analisis parameter psikometrik lanjutan.   Kata Kunci: Asesmen Kognitif, Instrumen, HOTS, Sistem A/C, Pendidikan Vokasi  
Analisis Perbandingan Tingkat Kebisingan Kabin Pada Mitsubishi Destinator Varian Sunroof dan Non-Sunroof Menggunakan Sound Level Meter Faiz Arkan Yulianto; Yusep Sukrawan; Ridwan Adam M Noor; Tatang Permana; Gilang Ciptadi Mahatkarsa
JURNAL ILMIAH TEKNIK INDUSTRI DAN INOVASI Vol. 4 No. 3 (2026): Juli : Jurnal Ilmiah Teknik Industri dan Inovasi
Publisher : CV. ALIM'SPUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59024/jisi.v4i3.1971

Abstract

This study aims to analyze and compare the cabin noise levels of the Mitsubishi Destinator Ultimate variant (sunroof) and Exceed variant (non-sunroof) under various driving speed conditions. Measurements were conducted using a Sound Level Meter inside the cabin at idle, 10, 30, 50, 70, 90, and 100 km/h. Results indicate that the Ultimate (sunroof) variant consistently produces higher noise levels than the Exceed (non-sunroof) variant across all speed variations. The largest noise difference was recorded at 100 km/h at 6.50 dB, while the smallest occurred at idle at 0.05 dB. Noise levels in both variants increased significantly with increasing speed, with the sunroof variant reaching 70.00 dB and the non-sunroof variant reaching 63.50 dB at 100 km/h. This difference is attributed to gaps and seals in the sunroof panel, which allow greater noise penetration from the external environment.
Analisis Karakteristik Aerodinamika Ferrari F2004 pada Variasi Kecepatan Aliran Udara Menggunakan Computational Fluid Dynamics Eka Muhammad Dzikra; Yusep Sukrawan; Tatang Permana; Muhamad Maris Al Gifari; Ridwan Adam Muhamad Noor
IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Vol 5 No 2 (2026): Agustus
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56862/irajtma.v5i2.477

Abstract

This study analyzes the aerodynamic characteristics of the Ferrari F2004 at different airflow speeds using Computational Fluid Dynamics (CFD). Autodesk CFD simulations were conducted at 150 km/h and 350 km/h to analyze pressure distribution, velocity, streamlines, drag, downforce, and aerodynamic coefficients. The results show that increasing airflow speed intensifies pressure and velocity variations and wake formation. Drag increased from 422.012 N to 2,295.60 N, while downforce increased from 151.026 N to 818.567 N. Meanwhile, the drag coefficient remained relatively stable, from 0.3053 to 0.3050, and the lift coefficient changed from −0.1093 to −0.1088. Increasing airflow speed primarily increases the aerodynamic loads on the vehicle.
Analisis Perbandingan Modifikasi Air Cap Spray Gun F3 terhadap Lebar Pola Semprotan dan Kualitas Permukaan Hasil Pengecatan Otomotif Nandang Raihan; Yusep Sukrawan; Tatang Permana; Ridwan Adam Muhamad Noor
IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Vol 5 No 2 (2026): Agustus
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56862/irajtma.v5i2.481

Abstract

This study compared spray pattern width and painted surface quality between an original F3 spray gun and a modified F3 spray gun at narrow, medium, and wide settings. We used a quantitative experimental method with a posttest-only control group design. We tested each spray gun and pattern-setting combination in three independent replications, resulting in 18 specimens. Spray pattern width was measured at a distance of 15 cm with the air cap in a horizontal position, while surface quality was assessed by two observers using an ordinal 1–5 scale. Inter-rater reliability was analyzed using weighted Cohen’s Kappa. The modified F3 produced average pattern widths of 100.00 mm, 161.67 mm, and 199.00 mm, compared with 91.67 mm, 156.67 mm, and 189.33 mm for the original F3. The increases were 9.09%, 3.19%, and 5.11%, respectively. The modified F3 also received higher surface-quality scores. Kappa values of 0.57, 0.50, and 0.33 indicated moderate to fair agreement.
Co-Authors A.A. Ketut Agung Cahyawan W Ade Angraini Nasution Ade Permana Albiyan Niezar Rozi Aprillia, Rheihanita Noer Darmawan, Bambang Doni Fajar Ramadhan Ega Taqwali Berman Eka Muhammad Dzikra Faiz Arkan Yulianto Fajrin Gimnastiar Fani Aditya Faza, Ibnu Nur Febriyani, Githa Fitri Gilang Ciptadi Mahatkarsa Ibnu Mubarak Ilyasa, Aditya Nur Iqbal Imaduddin Iyep Sutia Kamin Sumardi Muhamad Maris Al Gifari Muhammad Fahrizal Faisol muhidin, asep Mumu Komaro Nandang Raihan Noviyana, Kiki Nurhadi, Idham Prasetyo, Rachmat Adi Pratama, Alfian Syahbari Pujangga, Jajang Rika Andriani Sahrul Barokah Sriyono Sriyono Sriyono, S Sukrawan, Yusep Sutia, Iyep Tatang Permana, Tatang Wahid Munawar Widyaningsih, Indri Wuskha, Zainul Yundari, Yundari Yusron, Willi Nur