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All Journal Jurnal Ilmiah Poli Rekayasa Rang Teknik Journal AEEJ : Journal of Automotive Engineering and Vocational Education METAL : Jurnal Sistem Mekanik dan Termal
Nofriyandi R
Politeknik Negeri Padang
Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Transportation

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Desain Sambungan Baut Rangka Atap Baja Ringan Bentang Panjang Tipe Parallel Chord Ridho Aidil Fitrah; Nofriyandi R
Rang Teknik Journal Vol 3, No 1 (2020): Vol. 3 No. 1 Januari 2020
Publisher : Fakultas Teknik Universitas Muhammadiyah Sumatera Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (366.627 KB) | DOI: 10.31869/rtj.v3i1.1701

Abstract

Peningkatan konstruksi dengan menggunakan baja ringan sangat signifikan pada saat ini, salah satunya pada konstruksi rangka atap yang digunakan untuk bangunan-bangunan sederhana. Keunggulan material baja ringan dalam efisiensi waktu dan biaya menjadi alasan konstruksi baja ringan sangat diminati. Namun, jumlah konstruksi yang menggunakan baja ringan masih terbatas untuk struktur bangunan sederhana sedangkan propertis material yang tinggi hingga permasalahan tekuk yang dapat diatasi dengan berbagai metode berdasarkan penelitian yang telah dilakukan seharusnya dapat meningkatkan penggunaan baja ringan untuk konstruksi yang lebih besar. Penelitian ini memaparkan tentang desain rangka atap baja ringan bentang panjang tipe parallel chord menggunakan sambungan baut berdasarkan SNI 7971:2013. Analisis dan kinerja struktur rangka atap yang telah dilakukan pada penelitian sebelumnya dilanjutkan dengan mendesain sambungan baut pada bagian sambungan rangka atap baja ringan. Desain sambungan baut mengacu kepada pasal 5.3 dan dihitung berdasarkan kondisi tarik, tumpu, dan geser. Berdasarkan hasil desain didapatkan bahwa material baja ringan penampang kanal ganda tipe back to back dapat digunakan pada bentang 24 m dengan menggunakan sambungan baut diameter 10 mm. Bagian chord dan web di setiap sambungan dihubungkan melalui pelat buhul tebal 2 mm. Jumlah sambungan baut serta susunannya secara detail digambarkan pada penelitian ini.
Rancang Bangun Generator HHO untuk Aplikasi pada Engine 1108 Cm3 Rino Sukma; Nofriyandi Nofriyandi; Hanif Hanif; Dian Wahyu; Andriyanto Andriyanto
METAL: Jurnal Sistem Mekanik dan Termal Vol 3, No 2 (2019)
Publisher : Department of Mechanical Engineering, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (732.179 KB) | DOI: 10.25077/metal.3.2.87-93.2019

Abstract

Electrolysis is a method used to describe the composition of air. electrolysis converts air bonds (H2O) into its constituent compounds flammable Hydrogen and Oksigen which help the combustion process. Water electrolytic devices are called HHO generators, HHO generators use pure water electrolysis, the results of the meeting between H2 and O2 will be used as alternative fuels in meeting renewable energy needs. This research uses a HHO generator. Testing the performance of the HHO generator is done experimentally on a laboratory scale. The first stage is making a dry type HHO generator using SS316L plate. The size of the plate is 70 mm x 70 mm, the center of the plate is punched Ø 12 mm, the top and the bottom of the plate are perforated Ø 10 mm. The HHO generator consists of  5 cells and 4 neutral plates for each cell by agreeing 5, 7 and 9 grams of KOH for 1 liter of distilled water. The results of the production of HHO gas produces a large amount of H2 and O2 which flows in units of minutes at a volume of 500 ml. HHO gas production parameters will depend on current, power and efficiency will increase from each of the above variables. Measurements use special measurement tools to distinguish which are quite significant
PENCEMARAN KUALITAS OLI ENGINE EXCAVATOR ALAT BERAT KELAS SEBELAS TON AKIBAT KEAUSAN KOMPONEN Nofriyandi R Nofriyandi
Jurnal Ilmiah Poli Rekayasa Vol 18, No 1 (2022): Oktober 2022
Publisher : Pusat Penelitian dan pengabdian kepada Masyarakat (P3M) Politeknik Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (571.101 KB) | DOI: 10.30630/jipr.18.1.243

Abstract

In this study, the focus is on the analysis of oil quality pollution caused by the thirst of the components in the engine. [7]Komponen bagian dalam engine yang dialiri oleh pelumas sangat berpotensi terjadinya kehausan yang diakibatkan oleh pergesekkan antara material yang beroperasi dalam sistem kerja engine. Oil in the engine has specifications or properties that will affect engine performance. In this study, the authors took samples on the diesel engine oil multi grade S.A.E 15W-40 which was applied to an excavator heavy equipment engine with a capacity of eleven tons. One type of Additives in engine oil is Anti-Wear which functions to reduce wear by coating the surface with an oil film. The focus of this research will be to see how much thirst occurs in the internal components of the engine that are flowing with oil. The thirst of components in the engine will be seen from the quality of the engine oil, if the thirst that occurs is greater then the work of anti-wear additives in the oil has begun to decrease so there must be a solution or analysis obtained. Test results on tests from the S.O.S. laboratory From the six sampling times, the highest wear metal value was 35 ppm at the time of operation of the 1665 Meter [Hr] unit. Based on the results of the test, it is stated that the excavator engine is in good condition when viewed from the wear metal, oil contaminant, oil condition and oil viscosity.
Improve TAT Refurbishment Process Excavator 20 Tons in Heavy Equiment Workshop Refnal Marzuki; Rino Sukma; Nofriyandi R; Rusmardi Rusmardi
METAL: Jurnal Sistem Mekanik dan Termal Vol 6, No 2 (2022): Jurnal Sistem Mekanik dan Termal (METAL)
Publisher : Department of Mechanical Engineering, Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/metal.6.2.107-116.2022

Abstract

This study discusses the turnaround time (TAT) process in the 20 Tons Excavator refurbishment process carried out by a heavy equipment repair shop in Palembang City. TAT is the time range for the completion of the work, starting from when the tool arrives at the workshop until the job is completed. In this study, the employer is the owner of the heavy equipment, and the work recipient is the workshop where the heavy equipment is carried out. Based on the workshop records, during the 20 Tons TAT Excavator's refurbishment process, the best time was achieved was 56 working days. At the same time, the entrepreneur felt that 56 days was too long and the entrepreneur asked that this repair could be completed within a maximum of 30 working days. This delay causes huge losses for entrepreneurs resulting in lost business opportunities. This research aims to increase the TAT for the completion of the 20 Tons Excavator refurbishment work completion time following the work completion agreement. For this reason, it is necessary to conduct a study to determine the causes of delays in repair work. In this study, the authors use the method used in this analysis: Define, Measure, Analyze, Improve and Control (DMAIC). Based on the research, it was found that three things significantly affect the delay in completing the work, namely the limited area for painting, work agreements as a result of the availability of spare parts and completion of work from third parties. In the process of reconditioning heavy equipment, namely setting up the painting area, availability of spare parts and ensuring the completion of work submitted to third parties, to achieve the fastest time for completion of work
Aplikasi Inventaris Berbasis Komputer Workshop Alat Berat Politeknik Negeri Padang Andriyanto Andriyanto; Atikah Ardi; Dian Wahyu; Hanif Hanif; Nofriyandi R; Dimas Satrio Laksono Nugroho
AEEJ : Journal of Automotive Engineering and Vocational Education Vol 4 No 2 (2023): AEEJ : Journal of Automotive Engineering and Vocational Education
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/aeej.v4i2.221

Abstract

The purpose of this research is to design a Computer-Based Inventory application of equipment in the Heavy Equipment Workshop of Padang State Polytechnic. Historically, the borrowing, returning, utility, and tool data recording have been manual processes involving a substantial amount of paperwork, often leading to errors in item placement, difficulties in accessing information, and the risk of data loss. This application not only provides a centralized platform for recording and monitoring inventory but also facilitates real-time information access. With this technology, workshops can avoid shortages or excesses of items, enhance the efficiency of heavy equipment utilization, and optimize maintenance cycles. The methodology employed in developing this application is the Waterfall Development Method. The research outcome is a computer-based application using Visual Basic and SQL Server Database. Penelitian ini bertujuan untuk merancang aplikasi Inventaris Berbasis Komputer peralatan di Workshop Alat Berat Politeknik Negeri Padang. Selama ini peminjaman, pengembalian, Utility, dan pendataan tools dilakukan secara manual menggunakan kertas sehingga memakan waktu dan kertas yang banyak, seringkali mengakibatkan kesalahan peletakan barang, kesulitan akses informasi, dan risiko kehilangan data. Aplikasi inventaris workshop alat berat ini tidak hanya menyediakan platform terpusat untuk mencatat dan memantau inventaris, tetapi juga memberikan kemudahan dalam mengakses informasi secara real-time. Metode yang digunakan pada pembuatan aplikasi ini adalah Metode Research and Development (R&D) dengan model Pengembangan Waterfall. Hasil penelitian ini adalah aplikasi berbasis komputer menggunakan Visual Basic dan SQL Server Database yang dapat digunakan untuk peminjaman dan pengembalian inventaris di workshop alat berat sehingga semua tools dapat terdata dengan baik.
Pemantauan kecepatan dan suhu engine dengan Teknologi Internet of Things (IoT) Guswandri Guswandri; Khairul Amri; Nofriyandi R; Refnal Marzuki; Rino Sukma
AEEJ : Journal of Automotive Engineering and Vocational Education Vol 4 No 2 (2023): AEEJ : Journal of Automotive Engineering and Vocational Education
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/aeej.v4i2.222

Abstract

The use of technology has made human life easier, all sectors have merged with technology, such as Internet of Things (IoT) technology where an object is embedded with technology such as sensors and software with the aim of communicating with each other and exchanging data via software as long as it is still connected to the internet. This test aims to monitor engine speed and temperature. This research and testing uses a standard measuring instrument development method that uses a Tachometer to a measuring instrument with IoT technology that uses sensors. The design of the engine speed and temperature monitoring tool with Internet of Things technology uses several main tools, namely the Arduino Uno module, ESP8266, speed and temperature sensors which can be monitored using a smartphone. The results of engine speed monitoring by comparing standard measuring instruments with IoT technology monitoring tools or presentation of the average failure of the Tachometer and monitoring tools are 1.35. This means that the level of precision of monitoring tools with IoT technology is better than standard tools. Pemanfaatan teknologi telah mempermudah kehidupan manusia, semua sektor telah melebur bersama teknologi, seperti halnya teknologi Internet of things (IoT) dimana suatu objek ditanamkan teknologi seperti sensor dan software dengan tujuan saling berkomunikasi dan bertukar data melalui software selama masih terhubung ke internet. Pengujian ini bertujuan untuk memonitor kecepatan dan suhu engine. Penelitian dan pengujian ini menggunakan motode pengembangan alat ukur standar yang menggunakan Tachometer ke alat ukur dengan teknologi IoT yang menggunakan Sensor. Rancang bangun alat pemantauan kecepatan dan suhu engine dengan teknologi Internet of Things ini menggunakan beberapa alat utama yaitu Arduino uno modul, ESP8266, Sensor kecepatan dan suhu yang monitoringnya menggunakan Smartphone. Hasil pemantauan kecepatan engine dengan membandingkan antara alat ukur standar dengan alat pemantauan teknologi IoT atau presentasi rata-rata kegagalan Tachometer dan alat monitoring sebesar 1,35 . Artinya tingkat presisi alat pemantauan dengan tekno;ogi IoT ini lebih baik dari alat standar.
Co-Authors Andriyanto Andriyanto Atikah Ardi Dian Wahyu Dimas Satrio Laksono Nugroho Guswandri Guswandri Hanif Hanif Khairul Amri Refnal Marzuki Ridho Aidil Fitrah Rino Sukma Rusmardi Rusmardi