cover
Contact Name
EKO BUDIYANTO
Contact Email
ummetroarmatur@gmail.com
Phone
+6282280245320
Journal Mail Official
ekobudiyantoiyan@gmail.com
Editorial Address
Jl. Ki Hajar Dewantara No. 116, 15A Iringmulyo, Metro Timur, Kota Metro, Lampung
Location
Kota metro,
Lampung
INDONESIA
ARMATUR : Artikel Teknik Mesin dan Manufaktur
ISSN : 2722080X     EISSN : 27220796     DOI : https://doi.org/10.24127
Core Subject : Engineering,
ARMATUR : Artikel Teknik Mesin dan Manufaktur [ISSN (online) : 2722-0796, ISSN (cetak) : 2722-080X], merupakan jurnal terbitan berkala yang diterbitkan oleh Program Studi Teknik Mesin, Fakultas Teknik, Universitas Muhammadiyah Metro. ARMATUR terbit 2 kali dalam setahun bulan Maret dan September, memuat hasil-hasil penelitian dalam bidang Teknik Mesin dan Manufaktur. Dalam sekali penerbitan, ARMATUR memuat 5-10 artikel dengan 5-10 halaman per artikel. Proses penerimaan naskah jurnal sepenuhnya dilakukan melalui Online Journal Sistem (OJS).
Articles 165 Documents
Rancang Bangun dan Analisis Kinerja Saluran udara pada Simulator Trainer Airbag Solachuddin Al Ayyubi; Yuniarto Agus W
ARMATUR : Artikel Teknik Mesin & Manufaktur Vol. 7 No. 2 (2026): Jurnal Armatur (in Progress)
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/armatur.v7i2.11459

Abstract

Passive safety systems such as airbags are crucial for reducing the risk of fatal injuries in the event of a crash. The deployment speed of an airbag depends heavily on its mechanical design and electronic controls. This study aims to determine the effect of variations in valve channel diameter 2.5 mm, 5 mm, and 8 mm on the deployment response time of the driver-side airbag. The experimental method was conducted using an ATmega328 microcontroller-based airbag vehicle safety simulator trainer. In this test, a solenoid valve was used to regulate airflow with valve orifice diameters of 2.5 mm, 5 mm, and 8 mm. An ADXL345 sensor was used to provide the collision trigger signal to the microcontroller, while an HC-SR04 ultrasonic sensor was used to detect when the airbag began to deploy. Based on experimental analysis, it was concluded that the diameter of the valve channel significantly affects the inflation rate. The smaller the valve channel diameter, the faster the airbag response time. Conversely, the larger the channel diameter, the longer it takes for the airbag to inflate.
Pengaruh Jenis Sensor Water Level dan Variasi Tegangan Terhadap Ketinggian Air Pada Tangki Bensin Berbasis Arduino Yuniarto Agus Winoko; Moch Riduwan
ARMATUR : Artikel Teknik Mesin & Manufaktur Vol. 7 No. 2 (2026): Jurnal Armatur (in Progress)
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/armatur.v7i2.11463

Abstract

Cases of vehicle tank leaks throughout 2024-2025 amounted to 23,500 units. The cause of vehicle tank leaks is water vapor (condensation) because the empty space in the tank contains air. Water Level Sensor is a sensor used to detect and measure water levels. The way the Water Level Sensor works by utilizing an open conductor path that is connected when in contact with water, the Water Level Sensor used is HW 37 and HW 38. The purpose of this study is to determine the effect of the type of Water Level Sensor HW 37 and HW 38, variations in working voltage of 3V and 5V and to compare the percentage error value of water level measurements of 5, 10, 15 and 20 mm. The test method uses experiments presented in the form of tables and graphs. The independent variables are the type of sensor and voltage. The dependent variables are the accuracy of water level measurements of 5, 10, 15, and 20 mm. The test results of the Water Level Sensor HW 37 with the best accuracy occurred at a voltage of 5V with a percentage error value of 0.35%, while the Water Level Sensor HW 3 with the best accuracy occurred at a voltage of 5V with a percentage error value of 0.10%.
ANALISIS PENGARUH JENIS BAHAN BAKAR B0, B30, B35, DAN B40 TERHADAP EFISIENSI THERMAL PLTD BIAK Syi’ar Mulya Ahmad Pratiknyo; Christiono
ARMATUR : Artikel Teknik Mesin & Manufaktur Vol. 7 No. 2 (2026): Jurnal Armatur (in Progress)
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/armatur.v7i2.11511

Abstract

Diesel Power Plants (PLTD) play an important role in supplying electrical energy, particularly in island regions and remote areas such as Biak. To support the national energy transition, the government has implemented a mandatory biodiesel policy that has progressively increased from B30 and B35 to B40 in order to reduce dependence on fossil fuels. This study aims to analyze the thermal efficiency of PLTD Biak under B0, B30, B35, and B40 fuel types, as well as their effects on Specific Fuel Consumption (SFC) and heat rate. The research employed a quantitative descriptive approach using actual operational data, including fuel consumption, generator output power, and fuel heating values. The results show that increasing biodiesel content causes SFC to rise from 0.251 liter/kWh for B0 to 0.271 liter/kWh for B40, reduces thermal efficiency from 39.8% to 37.1%, and increases heat rate from 9,045 kJ/kWh to 9,704 kJ/kWh. It can be concluded that B30 provides the best balance between supporting the mandatory biodiesel policy and maintaining operational performance, while B35 and B40 require optimization of operating parameters to preserve efficiency.
Pendekatan Integratif Untuk Peningkatan Efektivitas Layanan dan Operasional Bengkel Otomotif: Systematic Literature Review Siti Ruqaiyah Baharuddin; Syakia Muflihat
ARMATUR : Artikel Teknik Mesin & Manufaktur Vol. 7 No. 2 (2026): Jurnal Armatur (in Progress)
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/armatur.v7i2.11560

Abstract

The increasing number of motor vehicles has led to higher demand for automotive workshop services, requiring workshops to improve both service quality and operational efficiency. However, many automotive workshops still face operational problems such as long service waiting times, inefficient workflows, inconsistent service quality, and non-value-added activities. This study aims to identify and analyze various approaches used to improve service quality and operational efficiency in automotive workshops through a Systematic Literature Review (SLR). The study reviewed 15 scientific articles published between 2020 and 2025 related to automotive workshop services, operational improvement, and quality management methods. The analysis focused on approaches such as Service Quality (SERVQUAL), Importance Performance Analysis (IPA), Lean Service, Quality Function Deployment (QFD), Value Stream Mapping (VSM), Six Sigma, Service Blueprint, TRIZ, and Design Thinking. The results show that SERVQUAL is the most widely used method for identifying service quality gaps, especially in responsiveness and reliability dimensions. However, integrated approaches combining service quality methods with operational improvement methods such as Lean Service, VSM, and Six Sigma provide more comprehensive solutions for improving workshop performance. These approaches are effective in reducing operational waste, improving workflow efficiency, minimizing service variability, and enhancing service innovation. The study concludes that improving automotive workshop performance requires an integrated approach involving service quality, operational efficiency, process control, and service innovation.
Pengaruh Aktivasi Termal Abu Dasar Batubara terhadap Kinerja Adsorpsi dalam Peningkatan Sifat Fisik Pelumas Bekas Randy Kurniawan; Darrel Parulian Cleverson Aritonang; Dino Nata Hidayat; Raihan Ramadhan; Asri Damertine Girsang; Devano Ramadhan; Rezky Tri Yunanda; Glory Florensa Br Siregar; Rikki Martin Nababan; Ummi Kulsum Hidayati
ARMATUR : Artikel Teknik Mesin & Manufaktur Vol. 7 No. 2 (2026): Jurnal Armatur (in Progress)
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/armatur.v7i2.11727

Abstract

Used lubricating oil contains degradation products and contaminants that may cause environmental pollution if improperly disposed of. This study investigated the utilization of coal bottom ash as an adsorbent for used lubricating oil purification and evaluated the effect of thermal activation on its adsorption performance. Bottom ash was purified using 2 M H₂SO₄ and subsequently thermally activated at 650°C for 3 h with NaOH assistance. The chemical composition of the adsorbent was analyzed using X-ray Fluorescence (XRF), while adsorption performance was evaluated through density, kinematic viscosity, and flash point measurements of the treated oil. XRF results showed that the purification process reduced Ca content from 22.36 wt.% to 10.44 wt.% and Fe content from 29.19 wt.% to 20.61 wt.% while preserving the major silica and alumina components. The thermally activated bottom ash exhibited better adsorption performance than the non-activated adsorbent, resulting in higher density and viscosity values of the treated oil. These findings demonstrate that thermal activation improves the adsorption capability of bottom ash, indicating its potential as a low-cost and environmentally friendly adsorbent for used lubricating oil purification.