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Budiman, Febrian Arif
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Pengaruh Bore Up, Variasi Busi Racing, dan Silencer Free Flow terhadap Performa Sepeda Motor 135 cc Mahaendra, Ivan Nauval; Wahyudi, Wahyudi; Budiman, Febrian Arif
Panthera : Jurnal Ilmiah Pendidikan Sains dan Terapan Vol. 5 No. 3 (2025): July
Publisher : Lembaga Pendidikan, Penelitian, dan Pengabdian Kamandanu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/panthera.v5i3.604

Abstract

This study aims to test the effect of the combination of bore up, variations of racing spark plugs, and free flow exhaust silencers on engine power and torque. The method used in this study is an experimental method with a quantitative approach. Changing the bore up piston diameter from 54 mm to 62 mm makes 135 cc to 177 cc and added by varying the racing spark plugs namely iridium, platinum, and the length of the free flow exhaust silencer 180 mm and 300 mm using a dynotest test. The results of the bore up of standard spark plugs and standard exhaust increased torque by 15.06 Nm and power to 12.47 kW. The combination of bore up with iridium spark plugs and 180 mm silencers produced the highest performance, namely 16.39 Nm of torque increased by 60.50% and 15.58 kW of power increased by 100%. Meanwhile, the combination with platinum spark plugs and 300 mm silencers produced 16.04 Nm of torque and 14.61 kW of power. These findings indicate that a bore-up configuration with iridium spark plugs and a 180 mm silencer is the most optimal combination for improving engine performance.
Kelayakan Media Peraga untuk Pembelajaran Analisis Kerusakan Sistem Wiper dan Washer Setiawan, Heri; Budiman, Febrian Arif
Panthera : Jurnal Ilmiah Pendidikan Sains dan Terapan Vol. 5 No. 4 (2025): October
Publisher : Lembaga Pendidikan, Penelitian, dan Pengabdian Kamandanu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/panthera.v5i4.612

Abstract

This study aims to: 1) evaluate the feasibility of the teaching media developed to support learning on the topic of wiper and washer systems; and 2) examine the extent to which the media can improve student learning outcomes. This research uses a Research and Development (R&D) approach with the ADDIE (Analysis, Design, Development, Implementation, Evaluation) development model which includes five stages, namely analysis, design, development, implementation, and evaluation. The research design used was One Group Pretest-Posttest. The research participants were students of class XI of Automotive Light Vehicle Engineering (TKRO) at SMK Dr. Sutomo Temanggung. The research subjects consisted of 29 students in grade XI TKRO 3 who acted as a control group and 28 students in grade XI TKRO 2 as an experimental group. Based on the results of validation by material experts and media experts, the wiper and washer system teaching media developed was declared to meet the eligibility criteria to be applied in the learning process. The measurement of learning outcome improvement is carried out through pre-test and post-test, then analyzed using the N-Gain formula. The results of the analysis showed that both the experimental group and the control group experienced an increase in learning outcomes at almost the same rate. The N-Gain value in the experimental class reached 0.679 or equivalent to 67% which was included in the category of "moderate" improvement. Meanwhile, the control class obtained an N-Gain value of 0.678 or 67% which is also included in the "moderate" improvement category. These findings indicate that the props of the wiper and washer systems are feasible and quite effective to be used in learning automotive engineering.
Diversifying the Livelihoods of Small-Scale Fishermen Through Welding Skills Improvement in Kragan District, Rembang Firmansyah, Hendrix Noviyanto; Al-Janan, Dony Hidayat; Haryadi, Haryadi; Budiman, Febrian Arif
Jurnal Abdimas Vol. 29 No. 2 (2025): December 2025
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/abdimas.v29i2.33921

Abstract

Karangharjo Village, Kragan Subdistrict, Rembang Regency, is a coastal village where the majority of the population works as traditional fishermen using boats <5 GT. Fish catch productivity is greatly influenced by the seasons, especially during the west wind period when catches drop dramatically to <10 kg/day. The low level of education, with 48.22% of the population only completing primary school, further limits skills and income levels. This situation leads to poverty and livelihood uncertainty. The objective of this community service programme is to develop alternative livelihoods through welding training using Shield Metal Arc Welding (SMAW) techniques as a strategy for diversifying fishermen's livelihoods. The implementation methods include planning, theoretical training, basic welding practice, application of workplace safety standards, and evaluation of participants' skills. The results of the programme show an increase in welding knowledge and skills among the 20 trainees, with some of them having the potential to develop their own welding businesses. This programme contributes to the achievement of the Sustainable Development Goals (SDGs), particularly Goal 8 (Decent Work and Economic Growth) and Goal 17 (Partnerships for the Goals), and supports the strengthening of the local economy through the empowerment of fishermen.
Effect of Using Magnetic Coil in Fuel Pipeline on Multi-Cylinder Gasoline Engine Performance Budiman, Febrian Arif; Huda, Alfin Miftakhul; Maulana, Sonika
Jurnal Inovasi Mesin Vol. 6 No. 1 (2024): APRIL 2024
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jim.v6i1.10939

Abstract

The increase in automotive technology, especially cars, has caused the availability of fuel to decrease. This is because more and more fuel are needed by vehicles while the amount of fuel on earth is dwindling because petroleum is a non-renewable natural resource. Motorized vehicles must not only save fuel but also have good performance. The better the fuel quality, the better the combustion process so that the greater the power and torque produced. So there needs to be an ideal fuel mixture for good combustion of multi-cylinder gasoline engine performance. Several things can be done to improve engine performance and fuel economy ranging from creating fuel saving devices, changing engine construction, hybrid technology to finding alternative fuels. This research uses an experimental research method with a descriptive quantitative approach to determine the effect of using magnetic coils on fuel pipelines on engine performance. The results showed the largest increase in power value of 12.89% in the use of magnetic coil with a copper wire diameter of 0.40 mm using first fuel at 2500 rpm. While the largest increase in torque value of 70.60 Nm to 79.70 Nm on the use of magnetic coil with a copper diameter of 0.40 mm at 2500 rpm using first fuel.
Peningkatan kualitas hasil pengecatan melalui penerapan mesin rotary polisher di bengkel Yunex Paint desa Gesing Temanggung Hanif Hidayat; Sarwi Asri; Ranu Iskandar; Febri Budi Darsono; Febrian Arif Budiman; R. Ambar Kuntoro Mursit Gendroyono; Wiji Ninggar Waskito; Siti Thoifatun Najiah; Dimas Iqbal Ramadhan
SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Vol 8, No 3 (2024): September
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jpmb.v8i3.25737

Abstract

Abstrak Tingginya jumlah penjualan kendaraan bermotor di Indonesia yang mencapai 94.067 unit pada tahun 2023 dapat menyebabkan berbagai permasalahan seperti kemacetan dan kecelakaan. Selain menimbulkan korban jiwa kecelakaan lalu lintas juga menyebabkan kerugian materi berupa kerusakan pada kendaraan seperti goresan atau penyok pada panel bodi mobil. Kerusakan tersebut dapat diperbaiki melalui proses pengecatan ulang untuk mengembalikan ke kondisi semula. Kualitas hasil pengecatan yang baik dapat dilihat dari nilai lekat dan nilai kilapnya. Nilai kilap menandakan kualitas hasil pengecatan yang dapat meningkatkan estetika dari sebuah kendaraan. Bengkel Yunex Paint yang beralamat di Desa Gesing Temanggung dipilih menjadi mitra pengabdian karena bergerak di perbaikan bodi dan pengecatan yang setiap minggunya mampu mengerjakan 2 unit mobil dengan total waktu pengerjaan 4-6 hari untuk pengecatan ulang panel bumper maupun kap mesin. Bengkel ini masih banyak menghadapi berbagai permasalahan pada  proses produksi seperti hasil pengecatan yang kurang mengkilap karena finishing masih dilakukan secara manual sehingga jumlah mobil yang dikerjakan tidak mengalami peningkatan menyebabkan perkembangan usahanya kurang signifikan. Mengatasi permasalahan tersebut maka diusulkan penerapan mesin rotary polisher yang diharapkan dapat meningkatkan efisiensi waktu dan kualitas hasil pengecatan, sehingga meningkatkan daya saing dan produktivitas Bengkel Yunex Paint. Pengabdian ini melibatkan 11 orang termasuk dengan pekerja bengkel. Metode pelaksanaan meliputi ceramah, demonstrasi, praktik langsung serta pendampingan, dan pengambilan data. Data hasil ukur daya kilap yang didapatkan yaitu 24,7 sebelum finishing, 85,3 sesudah finishing manual dan 94,1 sesudah finishing menggunakan mesin rotary polisher. Dari data yang didapatkan mesin rotary polisher dapat menambah nilai kilap hasil finishing pengecatan. Kata kunci: kualitas pengecatan; nilai kilap; mesin rotary polisher. Abstract The high number of motor vehicle sales in Indonesia, which reached 94,067 units in 2023, can cause various problems such as congestion and accidents. In addition to causing casualties, traffic accidents also cause material losses in the form of damage to vehicles such as scratches or dents on car body panels. The damage can be repaired through the repainting process to restore it to its original condition. The quality of good painting results can be seen from the adhesion value and gloss value. The gloss value indicates the quality of the painting results that can improve the aesthetics of a vehicle. The Yunex Paint workshop located in Gesing Village, Temanggung, was chosen as a service partner because it is engaged in body repair and painting which every week is able to work on 2 units of cars with a total processing time of 4-6 days for repainting bumper panels and hoods. This workshop still faces many problems in the production process such as painting results that are less shiny because finishing is still done manually so that the number of cars being worked on has not increased causing insignificant business development. Overcoming these problems, the application of a rotary polisher machine is proposed which is expected to increase the efficiency of time and quality of painting results, thereby increasing the competitiveness and productivity of the Yunex Paint Workshop. This service involved 11 people including workshop workers. The implementation method includes lectures, demonstrations, hands-on practice and mentoring, and data collection. The gloss measurement data obtained were 24.7 before finishing, 85.3 after manual finishing and 94.1 after finishing using a rotary polisher machine. From the data obtained, the rotary polisher machine can increase the gloss value of the painting finishing results. Keywords: painting quality; gloss value; rotary polisher machine.
PERBEDAAN TINGKAT STRES DAN SELF-EFFICACY PESERTA DIDIK SMK KEJURUAN OTOMOTIF BERDASARKAN JENIS BENGKEL MAGANG Riyanto, Fitra Ridwan; Budiman, Febrian Arif; Naryanto, Rizqi Fitri
Journal of Educational Review and Research Vol 9, No 1 (2026): VOLUME 9 NUMBER 1 JULY 2026
Publisher : STKIP Singkawang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26737/jerr.v9i1.8759

Abstract

Penelitian ini bertujuan untuk menganalisis perbedaan tingkat stres dan self-efficacy peserta didik SMK jurusan otomotif berdasarkan tempat magang, yaitu bengkel resmi dan bengkel umum. Penelitian ini menggunakan pendekatan kuantitatif dengan desain komparatif. Sampel berjumlah 60 peserta didik yang dipilih melalui teknik random sampling, teridiri dari 30 peserta didik yang magang di bengkel resmi dan 30 di bengkel umum. Tingkat stres diukur menggunakan Perceived Stress Scale (PSS-10), sedangkan self-efficacy diukur menggunakan General Self-Efficacy Scale (GSE). Data dianalisis menggunakan Independent Sample t-test dengan taraf signifikasi 0,05. Hasil penelitian menunjukkan bahwa terdapat perbedaan yang signifikan antara kedua kelompok. Peserta didik yang magang di bengkel umum memiliki tingkat stres yang lebih tinggi, sedangkan peserta didik di bengkel resmi menunjukkan tingkat self-efficacy yang lebih tinggi. Temuan ini mengindikasikan bahwa karakteristik lingkungan magang yang lebih terstruktur dan suportif berkaitan dengan kondisi psikologis peserta didik selama praktik kerja industri. Oleh karena itu pengelolaan program magang perlu mempertimbangkan aspek kesejahteraan psikologis selain penguatan kompetensi teknis.
Co-Authors Agusthio, Laode Hamdi Ahmad Fashiha Hastawan Angga Septiyanto Angga Septiyanto Ari Dwi Nur Indriawan Musyono Dimas Iqbal Ramadhan Dony Hidayat Al-Janan Dwi Widjanarko Dwiyanto, Indra Bagaskara Febri Budi Darsono Gojandra, Farda Pega Libra Hadromi - Hanif Hidayat Haryadi - Hendrix Noviyanto Firmansyah, Hendrix Noviyanto Huda, Alfin Miftakhul Iskandar, Ranu K.M.G., R. Ambar Khoirul Huda Mahaendra, Ivan Nauval Maharani, Annisa Tetty Musyono, Ari Dwi Nur Indriawan Nurwijayanti Oktavariza, Feri Putri Khoirin Nashiroh R. Ambar Kuntoro Mursit Gendroyono Rifa'i, Muhammad Arifian Riyanto, Fitra Ridwan Rizki Setiadi Rizqi Fitri Naryanto Rojannah, Amelinda Rusiyanto Sarwi Asri Septiyanto, Angga Setiadi, Rizki Setyo Bhahak Fendi Baihaqi Siti Thoifatun Najiah Soesanto Soesanto Sonika Maulana Sudiyono Sudiyono Sudiyono Sudiyono Sudiyono Sudiyono Sudiyono Sukoco, Imam Sulistyawan, Vera Noviana Wahyu Ady Priyo Kuncahyo Wahyudi Wahyudi Wiji Ninggar Waskito Winarno Dwi Rahardjo Wirawan Sumbodo Yazid Yazid, Yazid