Garuda - Garba Rujukan Digital

Article Per Year (5 Year)

All

METAL : Jurnal Sistem Mekanik dan Termal

metal
Website

Published by Universitas Andalas

ISSN : 25981137 EISSN : 25974483 DOI : -

Core Subject : Science, Engineering,

Automotive Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

METAL: Jurnal Sistem Mekanik dan Termal translated as METAL: Journal of Systems in Mechanical and Thermal is a scholarly peer-reviewed journal published by Mechanical Engineering Department of Engineering Faculty at Universitas Andalas, Padang, Indonesia. The journal focused on the mechanics and thermal aspects of the mechanical engineering area, and accepted articles are in these subjects: Energy - Renewable energy - Green industry - Energy conversion Mechanical System Engineering - Solid body mechanics - Machine construction - Vibration and control - Mechatronics - Tribology Production System Manufacturing engineering - Product design and development - Production technology - Production logistics and transportation Materials Engineering - Material technology - Nanotechnology

Arjuna Subject : Teknik (semua kategori) - Teknik Mesin

Articles 7 Documents

Search results for , issue "Vol 3, No 1 (2019)" : 7 Documents clear

Optimasi Parameter Permesinan Terhadap Tingkat Kekasaran Permukaan Aluminium Proses Pembubutan Dengan Metode Taguchi Diki Ismail Permana; Yayat Yayat
METAL: Jurnal Sistem Mekanik dan Termal Vol 3, No 1 (2019)
Publisher : Department of Mechanical Engineering, Universitas Andalas

This study is to determine the most suitable machining parameters to produce optimum surface roughness on turning operations using the Hurco TM20 CNC machine, ISCAR DNMG IC907 insert tool with aluminum 6061 as an object test material. The analysis was carried out using the Taguchi method with objective functions smaller the better and using ANOVA (analysis of variance) that determines which machining parameters have a significant effect on surface roughness. The machining parameters that evaluated are spindle speed, feedrate, and depth of cut. The test results shows that the machining parameters that produce the optimal surface roughness level is on range of 0.28 ± 0.13, and the parameters are spindle speed = 2092 rpm, feedrate = 0.07 mm / ref, dept of cut = 0.5 mm.

Evaluasi Frame Sepeda saat Tabrakan Dengan Metode Ekplisit Elemen Hingga Ardi Wiranata; Abdul Arief; Heru Santoso Budi Rochardjo
METAL: Jurnal Sistem Mekanik dan Termal Vol 3, No 1 (2019)
Publisher : Department of Mechanical Engineering, Universitas Andalas

In this paper, numerical method of crash impact by using explicit dynamic model was used to evaluate the bike frame design. Frontal impact simulation model was carried out to understand the characteristics of energy absorption, stress distribution and deformation of the bike frame. Carbon fiber T300 composite with elasticity modulus 129,79 GPa and overall frame weight is 1,8 kg was used in this simulation as material properties. Hashin damage criteria was used in this numerical analysis since this criteria was widely used to assess composite material damage simulation. In this study Head Tube angle (HTA) and Top Tube Angle (TTA) was modified. The modified HTA was varied from 69O to 76O and TTA was 70O to 86O. This modification was based on the original frame design which the HTA and TTA are 71.5O and 74O respectively. This modification was aimed to find the effect of HTA and TTA modification to energy absorption and stress distribution in the bike frame design. Simulation result shows that TTA and HTA modification affect the energy absorption of the bike frame. The smaller the energy absorption of the bike frame shows that the frame has poor quality of stress distribution.

Pengontrolan Kecepatan Aliran Vortex Berbasis Arduino Sebagai Metoda Pemisah Campuran Serbuk Tembaga dan Aluminium Fico Trianda Ravelli; Firman Ridwan
METAL: Jurnal Sistem Mekanik dan Termal Vol 3, No 1 (2019)
Publisher : Department of Mechanical Engineering, Universitas Andalas

Several methods have been developed to separate gold from alluvial using the principle of density. Density is used as a basic concept in material separation. One of the supporting methods that can be used to utilize the vortex flow as a separation medium. With vortex flow, two materials of different density can be separated through lift force. This study aims to determine the effect of vortex flow velocity on its ability to separate two different types of density material. Aluminum and Copper powders are used as test materials with a powder size of 18-200 mesh. The tests are carried out with a variation of 10 flow rates with water as a fluid. The results showed that Aluminum and Copper can be optimally separated at the flow rate (165.25-167.77) ml/s. While for the most effective effectiveness of Al separation is the flow rate (163.22-168.87) ml / s and copper separation at the flow rate (83.5-85) ml/s.

Desain Kinematik Alat Pengumpan Material Berbasis Mekanisme Empat Batang Syamsul Huda; Muhammad Jihad Islami; Mulyadi Bur
METAL: Jurnal Sistem Mekanik dan Termal Vol 3, No 1 (2019)
Publisher : Department of Mechanical Engineering, Universitas Andalas

In this paper was studied the design of feeding material system using four bars linkage mechanism. It was carried out dimensional synthesis of the mechanism based on the complex number method. This synthesis is applied to determine the length of crank, coupler, follower and dyad that control of feeding weight. Base on the results, it is obtained that the dimension of the four bars linkage and dyad to control 250 kg weight of feeding material reprsented by lengths of crank, coupler and follower are 1 m, 2 m, and 1 m rspectively and two links of dyad 0.2 m and 0.75 m. It was also determined the constant of spring to support the opening of the feeding material, 23,18 kN/m and input torque, 1083 Nm.

PENGARUH PENGGUNAAN KOLEKTOR PLAT DATAR PADA PENGERING PADI TIPE DRUM DRYER Nur Hidayati; Iskandar Ridwan
METAL: Jurnal Sistem Mekanik dan Termal Vol 3, No 1 (2019)
Publisher : Department of Mechanical Engineering, Universitas Andalas

Rice is one of food items consumed by most Indonesian people. Rice quality is a matter that must be considered in rice production. Rice quality can be improved by proper post-harvest handling, one of which is the drying process. The drying process can be done by drying under the sunshine and drying by using a dryer. Drying under the sunshine takes a long time, is difficult to control, depends on the weather, is easily contaminated and requires a large place. To overcome this problem, a dryer is needed. The dryer used is the drum dryer type. This drum dryer also utilizes mechanical energy from the gasoline engine so that it can rotate the drum. On the inner surface of the drum, stirring blades are installed. This dryer also uses heat coming from internal channel wall solar collectors. In this experiment was carried out with 4 free variations, namely: motor rotation, air flow velocity, intensity of solar radiation and cycle time. Three or four data are taken from each variation. When the experiment is taking place, varied parameters and planned parameters such as temperature absorber, ambient temperature, collector outlet air temperature and drying chamber temperature are measured. And at the final of the experiment for each variation, final mass of dried rice are measured. From the result of research, it can be concluded that the optimum rice mass reduction rate was obtained for each variation, namely at 905.1 rpm motor rotation, 10 m/s air flow rate, 948 W/m2 intensity of solar radiation and 30 minutes rotation time.

LAJU OKSIDASI TITANIUM MURNI (CPTI GRADE TIPE 340) BERLAPIS HYDROXYAPATITE (HA) YANG DISINTER DALAM TUNGKU PERLAKUAN PANAS Desmarita Leni; Gunawarman Gunawarman; Jon Affi; Yuli Yetri
METAL: Jurnal Sistem Mekanik dan Termal Vol 3, No 1 (2019)
Publisher : Department of Mechanical Engineering, Universitas Andalas

Implants are used for various reasons, such as replacing damaged tissue caused by disease or trauma, as filler and support the healing phase. The general terminology of biocompatibility describes a condition which will not cause harmful interaction between foreign material and the body. Biocompatibility is a system including physical, chemical, biological, medical, and design aspects. This study is focused on the influence of the coating thickness of hidroxyapatite layer on the rate of oxidation. Pure titanium coated by HA with thickness variation needs to be tested for oxidation resistance to determine the coating effectiveness in reducing the rate of oxidation. The rate of oxidation measured by weight loss method after coated titanium by HA and than heating in a heat furnance. HA coatings obtained by a process of electrophoretic deposition (EPD) with variation of time between 5 to 35 minutes at a voltage of 40 V with fineness of 30 µm. The oxidation process was done during the sintering process in a heat furnace for 10 minutes. The result of this study shows that the increase of time EPD increases the thickness of HA layer. Oxidation resistance on CPTi after HA coating does not cause the quality of pure titanium degraded in addition, the oxidation resistance of HA increases from good grade to excellent grade. It shows that the formation of surface oxide slows down during sintering process.

Gambaran Tingkat Kebisingan Akibat Suara Kendaraan Bermotor di Beberapa Sekolah Berlokasi di Sekitar Jalan Raya kota Padang Galan Eko Saputro; Meifal Rusli
METAL: Jurnal Sistem Mekanik dan Termal Vol 3, No 1 (2019)
Publisher : Department of Mechanical Engineering, Universitas Andalas

Concern about noise pollution has been increasing in worldwide nowadays, especially in industrial and urban areas. Children could be particularly vulnerable to the effects of noise because of its potential to interfere with learning at a critical development stage. Most of the learning occurs at school and thus noise exposure at school gives significant influence on learning performance. According to World Health Organization (WHO), traffic is one of the main sources of environmental noise exposure in urban communities, including school. This paper will review the noise level in some schools located near the main traffic road around Andalas and Simpang Haru area of Padang City, West Sumatera Province. Sound levels are measured at four points, i.e. at the main road in front of school, school gate, the nearest and farthest class room from the main road. The measurements are conducted from 7.00 am in the morning to 04.00 pm in the afternoon. It is found that almost in all positions in the schools are exposure by noise above the threshold limit value reversed by WHO and Indonesian Government 55 dBA. In the morning when the peak time of the traffic session, the noise levels from the class to the gate are around 70 dBA to 85 dBA, and its decrease to 50 dBA and 75 dBA in the afternoon. Some noise is possibly generated not only by traffic noise, but the noise graphics are seemed to be related to the traffic noise in the road.

Page 1 of 1 | Total Record : 7

Filter by Year

2019 2019

Filter By Issues

All Issue Vol. 9 No. 2 (2025): Jurnal Sistem Mekanik dan Termal (METAL) Vol. 9 No. 1 (2025): Jurnal Sistem Mekanik dan Termal (METAL) Vol. 8 No. 2 (2024): Jurnal Sistem Mekanik dan Termal (METAL) Vol. 8 No. 1 (2024): Jurnal Sistem Mekanik dan Termal (METAL) Vol 8, No 1 (2024): Jurnal Sistem Mekanik dan Termal (METAL) Vol. 7 No. 2 (2023): Jurnal Sistem Mekanik dan Termal (METAL) Vol 7, No 2 (2023): Jurnal Sistem Mekanik dan Termal (METAL) Vol 7, No 1 (2023): Jurnal Sistem Mekanik dan Termal (METAL) Vol 6, No 2 (2022): Jurnal Sistem Mekanik dan Termal (METAL) Vol 6, No 1 (2022): Jurnal Sistem Mekanik dan Termal (METAL) Vol 5, No 2 (2021): Jurnal Sistem Mekanik dan Termal (METAL) Vol 5, No 1 (2021): Jurnal Sistem Mekanik dan Termal (METAL) Vol 4, No 2 (2020): Jurnal Sistem Mekanik dan Termal (METAL) Vol 4, No 1 (2020): Jurnal Sistem Mekanik dan Termal (METAL) Vol 3, No 2 (2019) Vol 3, No 1 (2019) Vol 2, No 2 (2018) Vol 2, No 1 (2018) Vol 1, No 1 (2017): Volume 1, No 1 (2017) Vol 1, No 2 (2017): Jurnal Sistem Mekanik dan Termal (METAL) More Issue

Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name
Lovely Son

Contact Email
lovelyson@eng.unand.ac.id

Phone
+6281213552846

Journal Mail Official
metal@eng.unand.ac.id

Editorial Address
Kampus Limau Manis, Jurusan Teknik Mesin, Fakultas Teknik, Universitas Andalas

Location
Kota padang,

Sumatera barat

INDONESIA

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name Lovely Son

Contact Email lovelyson@eng.unand.ac.id

Phone +6281213552846

Journal Mail Official metal@eng.unand.ac.id

Editorial Address Kampus Limau Manis, Jurusan Teknik Mesin, Fakultas Teknik, Universitas Andalas

Location Kota padang, Sumatera barat INDONESIA

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Contact Name
Lovely Son

Contact Email
lovelyson@eng.unand.ac.id

Phone
+6281213552846

Journal Mail Official
metal@eng.unand.ac.id

Editorial Address
Kampus Limau Manis, Jurusan Teknik Mesin, Fakultas Teknik, Universitas Andalas

Location
Kota padang,

Sumatera barat

INDONESIA