Article Per Year (5 Year)
p-Index From 2020 - 2025
0.23
P-Index
This Author published in this journals
All Journal Jurnal Teknik Mesin Jurnal Polimesin
Amir Zaki Mubarak
Universitas Syiah Kuala
Automotive Engineering Control & Systems Engineering Engineering Materials Science & Nanotechnology Mechanical Engineering

Published : 5 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 5 Documents
Search

 1 
Penggunaan Accelerometer dan Strain Gauge Sebagai Sensor Untuk Mendeteksi Kerusakan Pahat Potong Nanda Aulia; Muhammad Rizal; Amir Zaki Mubarak
Jurnal Teknik Mesin Unsyiah Vol 7, No 1 (2019)
Publisher : Jurnal Teknik Mesin Unsyiah

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jtm.v7i1.14908

Abstract

The damage of cutting effect the product a lot, thus reducing the quality and dimensional change of the product. This research aims to monitor damage of cutting tool throught the accelerometer and strain gauge sensors on the process of turning Rod hydraulic cylinder SAE 1045 using cutting carbide coated. The machining process is carried out by the variation of cutting parameters, depth of cut 0,5 and 1,0, feed rate o,5 and 0,7 mm/min, and constant cutting speed of 1300 rpm. This experiment is conducted on three cutting tool condition they are new, medium wearing (0,15 mm) and critical wearing (0,3 mm). The censors used are accelerometer and strain gauge which are placed in the holder. The result show that kurtosis, RMS and standard deviation parameters are influenced by the tooling condition. Have the relation toward the wearing change of tooling, this case is showed by the existence of progress from the new, medium and critical tooling test. As for amplitude strain gauge signal also showed a significant change when there is damage to the wearing tools. This showed that the bigger wearing happening the higher signal out going.
Perancangan dan Pembuatan Dapur Peleburan Logam dengan Menggunakan Bahan Bakar Gas (LPG) Amir Zaki Mubarak; - Akhyar
Jurnal Teknik Mesin Unsyiah Vol 1, No 3 (2013)
Publisher : Jurnal Teknik Mesin Unsyiah

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (17.41 KB)

Abstract

Foundry industry is very important in the development of both machinery and household products. Furnace is important utility in producing a product. Available furnaces in the market are very costly and difficult to obtain due to be imported from abroad. Responding these issues, in this study is designed and developed a furnace that is simple, easy to manufacture, portable and most importantly the price is low so that it is affordable for industrial-scale domestic foundry industry. The furnace is heated with LPG (Liquefied Petroleum Gas) as the gas is economical and obtainable. Refractory stones are used as a heat insulator to increase the temperature in the combustion chamber to reach 1,000 oC. The heat can be set via the setting of gas that goes into the combustion chamber so that it can be adapted for different types of material with a melting temperature below 1,000 oC. The type of metal melted in this research is aluminum. The test results showed that the furnace is able to melt 0.39 kg of aluminum in 30.15 minutes.
The Use of Finite Element Method in Analysing the Dynamic Characteristic of a Rotor System Amir Zaki Mubarak
Jurnal Teknik Mesin Unsyiah Vol 1, No 2 (2012)
Publisher : Jurnal Teknik Mesin Unsyiah

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (17.41 KB)

Abstract

Vibration analysis is very essential to be considered in designing a rotor system. The failure in rotor system parts can be avoided by understanding the dynamic characteristic. The objective of this research is to investigate the dynamic characteristic of rotor systems by using finite element method. Finite element method is used to reveal the system characteristic which is derived from the kinetic and potential energy equations. Some models of rotor systems are analysed to understand the dynamic characteristic. The natural frequencies are obtained from the eigen values. The simulation is carried out with the distance of disk from the support as the variable. The result shows that the distance between the disk and the bearing affects the natural frequency of the system.
Pengembangan Algoritma untuk Menganalisis Frekuensi Pribadi Poros dengan Rotor Ganda Amir Zaki Mubarak
Jurnal Teknik Mesin Unsyiah Vol 1, No 1 (2012)
Publisher : Jurnal Teknik Mesin Unsyiah

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (17.41 KB)

Abstract

Vibration analysis is very essential to be considered in designing a rotor shaft. By the development of computer technology, the vibration analysis of the rotor shaft can be easily performed by numeric method. The objective of this research is to develop an algorithm to determine the natural frequency of a rotor shaft of a dual rotor system. The equation of motion of the system is derived from the kinetic and potential energy. By applying Lagrange’s equation and converting them into matrix form, the equations can be easily solved numerically. Through this approximation is developed computer program. The model is a rotor system built of a rotor shaft and two disks. The rotor shaft is numerically divided into several line elements. From the global matrices of the elements, it is resolved the eigen values of the system which are then converted into the natural frequencies. The validation of the program result with analytical calculation shows a very close result.
Harnessing Light-Emitting Diode technology for cutting-edge Photovoltaic module characterisation Ira Devi Sara; Fikrel Jasman; Hafidh Hafidh; Amir Zaki Mubarak
Jurnal Polimesin Vol 22, No 6 (2024): December
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v22i6.5625

Abstract

Significant advancements in Light-Emitting Diode (LED) technologies, including the availability of high-power LEDs at reduced costs, have rendered them a highly desirable and dependable solar simulator. However, there are still challenges in designing LEDs as solar simulators to evaluate the characteristics of specific solar modules across different technologies and sizes, particularly regarding spectral composition and spatial uniformity of irradiation. This work seeks to develop a prototype LED solar simulator capable of generating uniform light with stability of at least 90% (class C) throughout an illumination area of 54 cm × 67cm for laboratory instructional applications. The employed procedures encompass the selection of high-power LED bulbs, thermal management, electrical design, prototype fabrication, and performance assessment. The International Electrotechnical Commission (IEC) 60904-9:20 standard delineates the performance criteria for solar simulators and serves as a framework for constructing LED solar simulators. The study's results demonstrate that the LED solar simulator prototype has been successfully constructed and is categorized as class C, exhibiting a light non-uniformity and stability level of 10%. The capacity to delineate the current and voltage of a 50 cm × 30 cm small solar module under specified irradiance and temperature circumstances may be attained with a mean absolute error percentage of 0.01 and a root mean square error of 0.21. The hexagonal configuration of the LED array offers advantages for light design, including modularity and ease of expansion to achieve a broader illumination area. This arrangement can serve as an invaluable instrument to enhance solar energy research and maximize the performance of photovoltaic devices under regulated conditions.
Co-Authors Akhyar Akhyar Fikrel Jasman Hafidh Hafidh Ira Devi Sara Muhammad Rizal Nanda Aulia