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All Journal Jurnal Gema Ngabdi IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA)
Yudhyadi, I Gusti Ngurah Ketut
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Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Education Energy Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Social Sciences

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Penerapan Mesin Penyedot Debu Model Sentrifugal Untuk Usaha Kreatif Kerajinan Kulit Kerang Mutiara “Concha” Handycraft Menunjang Pariwisata Berkelanjutan Di Desa Meninting Lombok Joniarta, I Wayan; Wirawan, Made; Adi Sayoga, I Made; Yudhyadi, I Gusti Ngurah Ketut; Mirmanto, Mirmanto
Jurnal Gema Ngabdi Vol. 7 No. 1 (2025): JURNAL GEMA NGABDI
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jgn.v7i1.547

Abstract

The problem of dust pollution at the service partner "Concha Handycraft" is at the core of program activities. Controlling dust from its source is the main goal, namely replacing blower style vacuum cleaners with centrifugal type vacuum cleaners. The centrifugal type was chosen because it has a simple shape, the motor is separate from the fan, so the motor is protected from dust. The activity method begins with designing, purchasing materials, manufacturing in the workshop, testing, minor repairs, application and assistance. The results obtained are that the centifugal model vacuum cleaner that has been applied has advantages. The electrical power used from previously 260 watts to 120 watts. Working time can also increase because the motor used is a DC motor so it doesn't heat up quickly. If you use a blower model, the electric motor heats up quickly because it gets dust and needs to be cooled. The ability to suck up dust is also increased, with a fan at a 30 degree angle the ability to suck up and throw out is balanced. By using a centripugal model vacuum cleaner, 95% of the dust produced by the grinding machine can be sucked into the dust collection chamber.  Concha Handycraft partner SME owners and employees are very happy with the new machine, so they can be more productive at work, and stay protected from exposure to dust in the workplace.
Analisis Pengaruh Bentuk Ekor dan Kecepatan Kendaraan terhadap Performa Aerodinamis Purwarupa Kendaraan Mandalika Desantara Suryadi, Sapwan; Tira, Hendry; Yudhyadi, I Gusti Ngurah Ketut
IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Vol 4 No 3 (2025): Desember
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56862/irajtma.v4i3.296

Abstract

Increased energy demand and the automotive industry in Indonesia are driving innovation in efficient vehicles through more aerodynamic designs. This study tested the aerodynamic performance of the Mandalika Desantara vehicle prototype on variations in tail shape and vehicle speed. The computational fluid dynamics simulation method was used to obtain the aerodynamic parameters. The speed variations applied were 12.33 m/s, 17.89 m/s, 23.44 m/s, and 29 m/s. The results showed that vehicles with long tails had better aerodynamics with a drag coefficient of 0.0849 and a lift coefficient of 0.0889 at a speed of 29 m/s. The low drag and lift coefficients indicated reduced drag and lift forces, thereby improving performance and maintaining vehicle stability.
Analisis Eksperimental dan Statistik Pengaruh Tekanan Udara dan Massa Benda Kerja terhadap Kecepatan Silinder Pneumatik pada Sistem Produksi Modular Tira, Hendry Sakke; Mulyadi, Mulyadi; Yudhyadi, I Gusti Ngurah Ketut
IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Vol 5 No 1 (2026): April
Publisher : CV. IRA PUBLISHING

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56862/irajtma.v5i1.414

Abstract

Industrial automation systems widely employ pneumatic actuators; however, most existing studies focus on control strategies or isolated actuator components, with limited experimental validation in integrated automation platforms and insufficient evaluation of fundamental parameters such as supply pressure and load mass. This gap restricts a comprehensive understanding of actuator performance under realistic conditions. This study aims to experimentally and statistically evaluate the effects of air pressure and workpiece mass on pneumatic actuator performance in a Modular Production System (MPS) distributing station. A full factorial design (3 × 3) was used, with three levels of air pressure (3, 5, and 7 bar), three levels of workpiece mass (106, 112, and 118 g), and three repetitions per condition (27 runs). Cylinder speed was determined from the measured airflow rate, and statistical analysis was performed using one-way ANOVA. The results show that air pressure has a significant effect on cylinder speed (p < 0.05), with a 165% increase from 3 bar to 7 bar. In contrast, workpiece mass variation does not significantly affect cylinder speed (p > 0.05). These findings indicate that actuator performance in modular pneumatic systems is primarily governed by pressure-induced airflow. The study provides experimentally validated insights for improving system performance through effective pressure regulation.
Co-Authors Dyah S., Emmy Hendry Sakke Tira, Hendry Sakke I Made Adi Sayoga, I Made I Wayan Joniarta Ida Bagus Alit M. Mirmanto, M. Made Wirawan, Made Mulyadi Mulyadi Pandri Pandiatmi Sinarep Suryadi, Sapwan Tira, Hendry