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All Journal Jurnal Energi Dan Manufaktur Jurnal Pendidikan Teknologi dan Kejuruan Jurnal Rekayasa Mesin Jurnal Pendidikan Teknik Mesin Journal of Educational Science and Technology Media Mesin: Majalah Teknik Mesin Jurnal METTEK (Jurnal Ilmiah Nasional Dalam Bidang Ilmu Teknik Mesin) Jurnal Inovasi dan Pembelajaran Fisika Indonesian Journal of Educational Research (IJER) Sistem : Jurnal Ilmu-Ilmu Teknik Jurnal Taman Vokasi Turbo : Jurnal Program Studi Teknik Mesin SUSTINERE: Journal of Environment and Sustainability JPP IPTEK (Jurnal Pengabdian dan Penerapan IPTEK) Jurnal Pemberdayaan: Publikasi Hasil Pengabdian Kepada Masyarakat JIPI (Jurnal Ilmiah Penelitian dan Pembelajaran Informatika) International Journal for Educational and Vocational Studies Infotekmesin Jurnal Eduscience (JES) STEAM Engineering : Journal of Science, Technology, Education And Mechanical Engineering Scientific Journal of Mechanical Engineering Kinematika RESEARCH AND DEVELOPMENT JOURNAL OF EDUCATION (RDJE) Jurnal Pendidikan Vokasi Otomotif Jurnal Kependidikan: Jurnal Hasil Penelitian dan Kajian Kepustakaan di Bidang Pendidikan, Pengajaran dan Pembelajaran IJORER : International Journal of Recent Educational Research Journal of Mechanical Engineering, Science, and Innovation SAUJANA : Jurnal Perbankan Syariah dan Ekonomi Syariah Jurnal Polimesin Jurnal Rekayasa Mesin Automotive Innovations Journal Journal of Automotive Vocational Education Jurnal Sains, Teknik, Ekonomi, dan Pendidikan (SATEDIK)
Ariyanto, Sudirman Rizki
Universitas Bhinneka PGRI
Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Social Sciences Transportation Other

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ANALISIS KEGAGALAN PADA PATAHAN MATA BOR TIPE HIGH SPEED STEEL Ariyanto, Sudirman Rizki; Pratama, Muhammad Yandi; Warju, Warju; Hidayatullah, Rachmad Syarifudin; Anwari, Muhammad Syahrul
Steam Engineering Vol. 6 No. 2 (2025): STEAM Engineering, Vol. 6, No. 2, Maret 2025
Publisher : Program Studi Pendidikan Teknik Mesin, Fakultas Keguruan dan Ilmu Pendidikan, Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37304/jptm.v6i2.19625

Abstract

Drill bit failure in the drilling process often occurs due to exposure to mechanical, thermal, and chemical loads during operation. Nachi HSS drill bits, as critical components in the manufacturing industry, are prone to sudden wear and breakage due to dynamic processes involving material fragmentation, friction, and increased local temperatures. This study analyses the root cause of Nachi HSS drill bit failure through fracture investigation, chemical composition, and microstructure. The analysis methods include macroscopic testing to identify fracture patterns, optical microscopy to evaluate surface deformation, and X-ray Fluorescence (XRF) testing to verify material composition. The results showed that the fault was a brittle fracture due to a mismatch in chemical composition: molybdenum (Mo) levels were not detected. At the same time, chromium (Cr) and vanadium (V) only reached 3.85% and 0.95%, 0.45% lower than factory standards. This deficiency reduces resistance to thermomechanical loads, triggering stress concentration and rapid crack propagation during the drilling of ST37 steel material at a speed of 1,800 RPM. These findings emphasize the importance of quality control of material composition and optimization of operating parameters to prevent premature failure.
RANCANG BANGUN DIESEL PARTICULATE TRAP (DPT) UNTUK MEREDUKSI OPASITAS, KONSUMSI BAHAN BAKAR, DAN TINGKAT KEBISINGAN MESIN ISUZU C190 RIZKI ARIYANTO, SUDIRMAN
Jurnal Rekayasa Mesin Vol 1 No 03 (2014): JRM : Volume 01 Nomor 03 Tahun 2014
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jrm.v1i03.8910

Abstract

Perkembangan teknologi mesin diesel saat ini semakin pesat, maka jumlah kendaraan bermotor di Indonesia juga semakin meningkat. Hal inilah yang menimbulkan dampak negatif terhadap kesehatan manusia dan lingkungan. Emisi gas buang pada kendaraan mesin diesel diantaranya adalah emisi partikulat (PM10), CO, HC, NOx, dan SOx. Emisi mesin diesel yang umumnya diketahui adalah PM. PM merupakan senyawa berukuran mulai dari 100 mikron hingga kurang dari 0,01 mikron. Dampak yang ditimbulkan bila terhirup pada manusia adalah PM dapat mengendap dalam sel paru-paru dan menimbulkan flek (warna) hitam pada paru-paru. Tujuan penelitian ini adalah untuk mereduksi opasitas gas buang mesin Isuzu C190 dengan menggunakan diesel particulate trap (DPT) berbahan stainless steel tipe 304 dan glasswool. Jenis penelitian ini adalah penelitian eksperimen. Obyek penelitian adalah diesel engine Isuzu C190. Standar pengujian opasitas gas buang mesin diesel berdasarkan SNI 19-17118.2-2005 yang berpedoman pada SAE-JI667, pengukuran tingkat kebisingan berdasarkan standar ISO/FDIS 5130:2006 (E), dan pengukuran konsumsi bahan bakar berdasarkan standar SNI 7554:2010. Analisis data menggunakan metode deskriptif. Peralatan dan instrumen penelitian yang digunakan adalah smoke opacity meter, sound level meter, fuel meter, manometer, thermocouple, stopwatch, digital tachometer, dan blower. Hasil pengujian menunjukkan bahwa penggunaan DPT Fe+Cr dengan desain metallic honeycomb dapat mereduksi opasitas, tingkat kebisingan, dan konsumsi bahan bakar. Hal ini ditunjukkan dengan tereduksinya opasitas gas buang, tingkat kebisingan, dan konsumsi bahan bakar diesel engine Isuzu C190. Dengan menggunakan DPT Fe+Cr 20 mm menghasilkan opasitas sebesar 22,8 %HSU (hartridge smoke unit). Persentase reduksi opasitas gas buang sebesar 70%. Opasitas ini lebih kecil dibandingkan dengan knalpot standar yang menghasilkan opasitas sebesar 75,5 %HSU. Pada DPT Fe+Cr 15 mm menghasilkan opasitas sebesar 13,8 %HSU. Persentase reduksi opasitas gas buang sebesar 82%. Pada DPT Fe+Cr 10 mm terjadi reduksi opasitas secara signifikan dengan nilai opasitas sebesar 8,7 %HSU. Persentase reduksi opasitas gas buang sebesar 89%. DPT Fe+Cr 20 mm dapat mereduksi konsumsi bahan bakar dengan persentase reduksi rata-rata 3,1%. DPT Fe+Cr 15 mm dapat mereduksi konsumsi bahan bakar dengan persentase reduksi rata-rata 4,8%, dan reduksi bahan bakar terbaik ada pada DPT Fe+Cr 10 mm dengan persentase reduksi rata-rata 7,9%. DPT Fe+Cr 20 mm dapat mereduksi tingkat kebisingan dengan persentase reduksi rata-rata 1,7%. DPT Fe+Cr 15 mm dapat mereduksi tingkat kebisingan dengan persentase reduksi rata-rata 3,5%, dan reduksi tingkat kebisingan terbaik ada pada DPT Fe+Cr 10 mm dengan persentase reduksi rata-rata 5%. Kata Kunci: Diesel particulate trap, stainless steel, glasswool, diesel engine Isuzu C190
English English Cahyo Bagus Setiawan, Heri; Rizki Ariyanto, Sudirman; Tri Umaroh, Susi
SAUJANA : Jurnal Perbankan Syariah dan Ekonomi Syariah Vol 7 No 1 (2025): SAUJANA : Jurnal Perbankan Syariah dan Ekonomi Syariah
Publisher : STEI Kanjeng Sepuh Gresik Jawa Timur

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59636/saujana.v7i1.298

Abstract

This study explores the dynamics of entrepreneurship in Islamic boarding schools in the context of sharia economic empowerment, using a qualitative approach and a multiple case study design. This study compares two Islamic boarding schools with different entrepreneurial characteristics: the Mukmin Mandiri Islamic Boarding School in Sidoarjo, which focuses on coffee agribusiness with exports to Australia and Malaysia, and the Rahmatan Lil Alamain Islamic Boarding School in Nganjuk, which develops micro-enterprises based on local potential. The results show that both Islamic boarding schools implement strategic management that is adaptive to their respective contexts, with key success factors including visionary leadership based on values, integrated resource management, application of sharia economic values, and adaptability of strategies to the external environment. This study contributes to the understanding of how strategic management principles can be applied in the context of Islamic boarding schools based on sharia economics.
Evaluating the Impact of Alternative Material-Based Catalytic Converters on Automotive Exhaust Emissions Ariyanto, Sudirman Rizki; Warju, Warju; Arifianti, Lailatus Sa'diyah Yuniar; Komarudin, Komarudin; Nugraha, Ata Syifa'
Journal of Mechanical Engineering, Science, and Innovation Vol 5, No 1 (2025): (April)
Publisher : Mechanical Engineering Department - Institut Teknologi Adhi Tama Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31284/j.jmesi.2025.v5i1.7287

Abstract

Pollution air in cities in Indonesia, such as Jakarta, Tangerang, and Bandung, is especially caused by exhaust emissions from vehicle motorized, like carbon monoxide (CO) and hydrocarbons (HC), which originate from burning material burn the ones that don't perfect. Technological catalytic converters are used to reduce emissions, but converters made from metal have their own cost. This study evaluates exhaust Metallic Catalytic Converter (MCC) technology with alternative materials copper (Cu). The result shows that the MCC Cu exhaust system is significantly more effective in reducing CO and HC emissions compared with exhaust without the original equipment manufacturer (OEM) catalyst and exhaust. The average CO emissions are 2.13 %Vol and HC emissions are 198 ppmVol, lower compared to the second type of exhaust. Findings This shows that MCC Cu exhaust is not only more effective in reducing danger but is also more economical compared to catalytic converters made from metal noble, offering a solution sustainable and affordable for problem pollution air from vehicles.
Solar charging controller using DC-DC buck converter with cascaded PI controller for a sustainable renewable energy system Laksmi B., Nur Vidia; Muhammad Syahril Mubarok; Aribowo, Widi; Umaroh, Susi Tri; Ariyanto, Sudirman Rizki; Nurlita, Ita; Rahmadian, Reza
Sustinere: Journal of Environment and Sustainability Vol. 9 No. 1 (2025): pp. 1-127
Publisher : Center for Science and Technology, IAIN Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22515/sustinere.jes.v9i1.444

Abstract

The renewable energy system (RES) has recently become hot topic due to its unlimited, green energy potential, and the maturity of its technology. A solar charging controller (SCC) is required to regulate parameters for the battery and is an essential component for sustainable and renewable energy usage. An SCC based on a DC-DC Buck converter with cascaded proportional-integral (PI) controller is used in the system for managing the current and voltage loops, thereby preventing battery overcharging. The control parameters are determined using the Ziegler-Nichols method based on the reaction curve. A first -order system is employed due to the open-loop responses show no overshoot and oscillations. MATLAB software is used for both simulation and controller design. Simulations are conducted to validate the proposed SCC with the cascaded controller. Variations in the state of charge (SoC) are presented in two cases: without and with the controller. The SoC is set 20%, 50%, and 95%. A high SoC percentage indicates that the battery is near the full capacity, whereas a low percentage indicates that battery is near empty. Using the cascaded controller, both current and voltage responses at different SoC levels demonstrate satisfactory performance, including rapid transient responses, minimal overshoot, small ripples, and robustness.
Development of Psychomotor Domain Assessment Instrument on Brake System Competence in SMKN 1 Jetis Mojokerto Ariyanto, Sudirman Rizki; Munoto, Munoto; Muhaji, Muhaji
International Journal for Educational and Vocational Studies Vol. 1 No. 6 (2019): October 2019
Publisher : Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/ijevs.v1i6.1648

Abstract

Many factors influence the low number of skilled vocational high school graduates. One factor that is the leading cause is the lack of instruments that can be used in the learning process, especially authentic instruments, to assess students' abilities in the psychomotor domain. Students who are dominant in the cognitive sphere are not necessarily skilled in the psychomotor realm, especially when using the equipment and making improvements to the brake system. The purpose of this study is to develop an assessment instrument that is appropriate to be used by the teacher in evaluating the psychomotor domain's abilities, specifically for the brake system competency. This research is development research that uses ADDIE models as a reference for research. ADDIE model has five stages of development that need to be considered, including analysis; (2) design; (3) development; (4) implementations; and (5) evaluation. Based on the results of the analysis and discussion of the psychomotor domain assessment instrument for the competency of the brake system that was developed to be suitable for use in the learning process. Feasibility is proven from the results of the validation of experts who get an assessment of 4.66 with a very valid category. The instrument reliability test results that get the Cronbach's alpha value of 0.895, and the value of inter-observer reliability is 0.740. In addition, the instrument is also practical when used in the learning process. This was evidenced by the acquisition of practicality test value of 3.31 and entered in the practical category.
Optimizing copper catalytic converter designs for emission reduction in automatic motorcycles using grey relational analysis Sudirman Rizki Ariyanto; Warju Warju; Komarudin Komarudin; Ata Syifa' Nugraha; Susi Tri Umaroh
Jurnal Polimesin Vol 23, No 2 (2025): April
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v23i2.6375

Abstract

Vehicle emissions remain a major environmental challenge in urban areas, particularly in developing countries like Indonesia, where motorcycles dominate transportation. Automatic motorcycles pose specific emission control difficulties due to their engine characteristics. This study experimentally evaluates six copper-metallic catalytic converter designs installed on a 150cc automatic motorcycle under idle and 3000 rpm conditions. Exhaust emissions of carbon monoxide (CO) and hydrocarbons (HC) were measured using a gas analyzer. Grey Relational Analysis (GRA) was employed to optimize the design parameters. The E3 design (curvature height: 4 mm, diameter: 54 mm, length: 100 mm) exhibited the best performance, reducing CO to 3.72% and HC to 539 ppm. Compared to standard designs, E3 improved emission reduction by 18–36%. These findings confirm that catalyst geometry significantly influences emission control and demonstrate the effectiveness of GRA in multi-parameter optimization. The results contribute to the development of efficient, affordable catalytic converters, supporting sustainable transportation and aligning with SDG 13 goals for climate action.
Mengoptimalkan Penggunaan Youtube Sebagai Media Pembelajaran Untuk Meningkatkan Prestasi Belajar Siswa SMK Warju, Warju -; Ariyanto, Sudirman Rizki; Umaroh, Susi Tri; Pratama, Muhammad Yandi; Nugraha, Ata Syifa
Jurnal Pendidikan Vokasi Otomotif Vol. 6 No. 2 (2024): (Mei)
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jpvo.v6i2.73122

Abstract

This research aims to analyze the effectiveness of learning media and mathematical logic intelligence on student learning achievement. This research was a quasi-experimental type with a sample size of 68 students consisting of an experimental class and a control class of 34 students each. The data analysis method uses two-way Anova. The results of this study indicate that there are (1) differences in learning achievement between students who study using YouTube compared to e-books; (2) differences in learning achievement between students with high versus low mathematical logical intelligence; and (3) the interaction between learning media and mathematical logic intelligence on student learning achievement.
Exhaust Emission Control in Sport Motorcycles: A Comparison of Catalytic Converters with Alternative Metal Materials Warju, Warju; Ariyanto, Sudirman Rizki; Pratama, Muhammad Yandi
Jurnal Polimesin Vol 22, No 1 (2024): February
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v22i1.4092

Abstract

In this modern era, motor vehicles have brought significant changes in human life. Faster and more efficient mobility has increased connectivity between regions, supported economic growth, and improved quality of life. However, increased mobility also means an increase in vehicle exhaust emissions, which contribute to climate change and air pollution. One effective technology for controlling exhaust emissions is the use of catalytic converters. Metal catalytic converters, such as copper, brass, and chrome-plated copper, have been researched as more affordable and effective catalyst alternatives. This research aims to analyze the optimal design of exhaust systems with catalytic converters among three types of alternative materials (copper, brass, and chrome-plated copper) as well as standard exhaust systems without catalysts (STD NC) and standard platinum group metal exhaust systems (STD PGM) in maximizing the reduction of motor vehicle exhaust emissions. An experimental research design was used by utilizing a 2015 Yamaha Vixion Lightning as the research object. Catalytic converters were prepared with specific specifications to ensure consistency and accuracy in measurements. CO (carbon monoxide), HC (hydrocarbons), CO2 (carbon dioxide), and O2 (oxygen) emissions were analyzed using an Exhaust Gas Analyzer. The research results indicate that the CuCr sample exhibits excellent performance in reducing CO and HC emissions. The CuCr sample has an average CO emission of 4.09% Vol with a standard deviation of 1.46, demonstrating good consistency in CO emissions. Meanwhile, the average HC emissions from the CuCr sample are 320 ppmVol with a standard deviation of 106, indicating good consistency in HC emissions. All samples meet the emission standards set by the government, except for the STD NC sample, which exceeds the CO emission threshold.
MODEL PREDIKSI TEMPERATUR PAHAT PADA PROSES BUBUT MELALUI ANOVA DAN REGRESI Arifianti, Lailatus Sa'diyah Yuniar; Ariyanto, Sudirman Rizki; Umaroh, Susi Tri; Abdi, Ferly Isnomo; J, Mohammad R.
SISTEM Jurnal Ilmu Ilmu Teknik Vol 21 No 2 (2025): In-Press
Publisher : Fakultas Teknik Universitas Wisnuwardhana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37303/sistem.v21i2.308

Abstract

Pada proses pembubutan, temperatur tinggi sering terjadi akibat gesekan antara pahat dan benda kerja, yang berdampak pada peningkatan keausan pahat dan penurunan kualitas hasil pemesinan. Penelitian ini bertujuan untuk menganalisis pengaruh parameter proses, yaitu kecepatan putar (spindle speed), kecepatan makan (feed rate), dan kedalaman potong (depth of cut), terhadap temperatur pahat menggunakan metode analisis variansi (ANOVA) dan regresi linier berganda. Percobaan dilakukan sebanyak 16 kali berdasarkan rancangan faktorial penuh 2³ dengan dua replikasi. Hasil analisis menunjukkan bahwa feed rate dan depth of cut berpengaruh signifikan terhadap temperatur pahat, sedangkan spindle speed tidak memberikan pengaruh yang signifikan secara individual. Namun, interaksi antara faktor-faktor tersebut terbukti memberikan pengaruh yang signifikan terhadap temperatur. Model regresi linier berganda yang dikembangkan memiliki nilai koefisien determinasi (R²) sebesar 93,99%, yang menunjukkan kecukupan model untuk prediksi. Temuan ini memberikan kontribusi dalam pengendalian parameter proses untuk meminimalkan temperatur pahat, memperpanjang umur pahat, serta meningkatkan efisiensi dan kualitas dalam proses pembubutan.
Co-Authors AA Sudharmawan, AA Abebayehu Yohannes Achmad Chairuddin Ahmad Mahbub Zunaidi Aishwanda Azizah Resanti Aldhio Prataman Anggara Sukma Ardiyanta Ansheila Rusyda Subiyantari Anwari, Muhammad Syahrul Arifianti, Lailatus Sa'diyah Yuniar Arya Mahendra Sakti Ata Syifa' Nugraha Ata Syifa’ Nugraha Ata Syifa’ Nugraha Bagas Surya Hadi Bagas Surya Hadi Bagas Surya Hadi Bagas Surya Hadi Cahyadi, Wahyu Robby Cahyo Bagus Setiawan, Heri Chalvin Athaariq Ramadhana Devi Vitriana Purwanto Dianna Ratnawati Ema Mahayati Erwin Komara Mindarta Fahrul Ardiansyah Farzana Shafa Ferly Isnomo Abdi Frans Ahkilal Firmansyah Hanif Gunawan Wibisono Hapsari Assasanaim Hasanah, Savira Uswatun Heri Cahyo Bagus Setiawan Hidayatullah, Rachmad Syarifudin Husni Mubarok I Made Arsana Ikke Wulan Puji Lestari Imam Muda Nauri Irra Chrisyanti Dewi Iskandar, Zaldy Juliarsyah, Mohammad Rizanto Khasby Khoirul Atok Komarudin Komarudin Komarudin Komarudin Lailatus Sa'diyah Yuniar Arifianti Latifahtur Rahmah Lestari, Ikke Wulan Puji Lukita Wardani, Ayusta Mardji Mardji Mega Cantika Deva Ningrum Mohammad Muthohirul Azis Muayat Khoirun Nafis Muh Farid Hidayatullah Muhaji Muhaji Muhaji Muhaji Muhaji Muhammad Annasrulloh Muhammad Fahrul Ilham Muhammad Nurtanto Muhammad Syahril Mubarok Muhammad Yandi Pratama Muhammad Yandi Pratama Muhammad Yandi Pratama Muhammad Yandi Pratama Muhammad Yandi Pratama Munoto Munoto Munoto Munoto Nugraha, Ata Syifa Nugraha, Ata Syifa' Nur Vidia Laksmi B Nurlita, Ita Olivia Febrianti Pangestu, Muhammad Tegar Jaya Pramuko Ilmu Purboputro Pratama, Muhammad Yandi Prihanto Trihutomo Purwanto, Devi Vitriana Putra, Rico Andhika Rachmad Syarifuddin Hidayatullah Rachmad Syarifudin Hidayatullah Rachmad Syarifudin Hidayatullah Rahmadian, Reza rahmah, latifahtur Retno Wulandari Rio Adi Trisna Risca Zahra Permatahat Rizky Wiono Berlian Rozi, Fahrur Savira Uswatun Hasanah Shilmi Arifah SOERYANTO Soeryanto Soeryanto Soeryanto Soeryanto Soeryanto Soeryanto Subandi Subandi Suprayitno Suprayitno Suprayitno Suprayitno Susi Tri Umaroh Tiwit Nor Hidayat TRI UMAROH, SUSI Trisna, Rio Adi Tuti Iriani Umaroh, Susi Tri Wafiq Azizah Ramadhani Wahyu Robby Cahyadi Wahyu Robby Cahyadi Wahyu Robby Cahyadi Wahyu Robby Cahyadi WARJU Warju, Warju - Widi Aribowo Widiyanti Yelma Dianastiti Yoel Manathan Zaldy Iskandar