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 143 Documents

6 7 8 9 10

Metode Pengering Gabah Aliran Massa Kontinu Sebagai Pengering Alternatif Pada Musim Penghujan Dengan Sumber Energi Dari Cahaya Lampu Mono Kromatis Nusyirwan Nusyirwan
METAL: Jurnal Sistem Mekanik dan Termal Vol 2, No 1 (2018)
Publisher : Department of Mechanical Engineering, Universitas Andalas

In the rainy season, rice grain from the harvesting field cannot be dried properly. This condition is due to sunlight being blocked up by the cloud therefore the sunlight intensity on the earth surface is small. As a consequence many farmers become loss because this low quality rice is sale at a lower price. To overcome the above problems, it is necessary to make a dryer that not directly depend on the solar energy. In this research, a method for rice drying using light from monochrome lamp is proposed. The dryer consist of a silinder-shaped container which is equipped whith a stirer that can be adjusted according to the desired speed. In the drying chamber, hot air that regulated in the drying room is produced by incandescent lamp. The drying result obtained from this dryer using 40 rpm rotation speed reaches an absolute dry percentage of rice at equivalent of 14 %. While for stirrer rotation 50 rpm and 60 rpm the drying percentage is 8 % and 5 %. From these results, it can be concluded that the best condition for the drying process is obtained for stirrer rotation speed 40 rpm.

Analisis Respon Landing Gear pada Pesawat Tanpa Awak Saat Mendarat Lovely Son; Firman Zain; Mulyadi Bur
METAL: Jurnal Sistem Mekanik dan Termal Vol 4, No 2 (2020): Jurnal Sistem Mekanik dan Termal (METAL)
Publisher : Department of Mechanical Engineering, Universitas Andalas

Penelitian ini membahas tentang analisis respon dinamik pada landing gear pesawat tanpa awak saat mendarat. Penelitian diawali dengan pemodelan mekanisme landing gear untuk mendapatkan harga kekakuan dan redaman ekivalen. Penurunan persamaan gerak dilakukan dengan asumsi sistem getaran satu derajat kebebasan. Respon sistem dihitung dari persamaan gerak secara analitik. Simulasi numerik dilakukan untuk mendapatkan grafik respon simpangan dan percepatan. Evaluasi respon sistem dilakukan untuk sejumlah variasi dimensi batang dan kekakuan pegas pada mekanisme landing gear. Dari hasil simulasi ditunjukkan bahwa harga maksimum amplitudo respon percepatan berbanding terbalik dengan harga maksimum amplitudo respon simpangan. Disamping itu, peningkatan harga kekakuan pegas ks menyebabkan meningkatnya harga maksimum respon percepatan dan mengurangi amplitudo respon simpangan pada landing gear.

Penghitungan Beban Kritis pada Struktur Balok-Kolom Akibat Pembebanan Secara Aksial dan Lateral Berbasiskan Metode Beda Hingga Eka Satria; N Nusyirwan; Deri Yunifki
METAL: Jurnal Sistem Mekanik dan Termal Vol 1, No 2 (2017): Jurnal Sistem Mekanik dan Termal (METAL)
Publisher : Department of Mechanical Engineering, Universitas Andalas

This paper is aimed to determine the critical buckling load of the beam-column structures for practical applications. Firstly, the critical buckling loads is calculated numerically based on finite difference method. For geometrical modeling, the structures are supported in three types of supports; pinned-roller, fixed-free, and fixed-pinned. Then, a geometry of the beam is varied in variation of slenderness ratio. The load is given in types of uniform distribution load, q, laterally and a concentrated load, P, axially. Using a computational program, the relationships of P/q to slendernes ratio, l, for all models are determined. The results then are approached by regression technique of a least square method in order to find a the best fit of equation. This equation is recommended as a practical equation for determining the critical buckling of the beam-column structures under variation of types of supports, slenderness ratio and rasio P/q.

Perancangan Dinamometer untuk Mengukur Gaya Potong pada Mesin Freis untuk Pemesinan Material Fiber Reinforced Polymer Firman Ridwan; Refki Harvendri
METAL: Jurnal Sistem Mekanik dan Termal Vol 4, No 1 (2020): Jurnal Sistem Mekanik dan Termal (METAL)
Publisher : Department of Mechanical Engineering, Universitas Andalas

Milling machine is a machine that cuts a workpiece using a plural chisel that rotates on a freis machine. During the freis process, the material is cut because of the cutting force that occurs between the tool and the workpiece. The amount of cutting force can be known by theoretical calculations, but the theoretical calculation will produce a less accurate cutting force because of the many factors that influence the cutting force and the assumptions given in the calculation. Therefore, direct measurements are needed in order to see the magnitude of the cutting force that occurs during the freis process. The amount of cutting force obtained will be needed in analyzing machining parameters to obtain a combination of machining that is efficient and profitable. The tool used to measure the amount of cutting force on a freis machine is a dynamometer. The constituent components of the dynamometer are loadcell strain gauge, INA 125P amplifier IC, and national instrument hardware acquisition data 6212. The dynamometer is designed to be able to read 3 directions of force, namely the cutting force (Ft), axial force (Fz), and feeding force (Fy). Measuring the average cutting force (Ftm) obtained using aluminum workpieces is 97,6002 N, acrylic workpiece is 65,3338 N, GFRP (Glass Fiber reinforce polymer) chopped strand mat is 146,8845 N, and GFRP woven roving is 103.3915 N. Dimensions of the dynamometer are designed with a total length of 32 cm, width 32 cm, and height of 18 cm.

Analisis Kestabilan Mobil Hemat Energi Adyatma Pada Kondisi Jalan Berbelok muri febrian
METAL: Jurnal Sistem Mekanik dan Termal Vol 6, No 1 (2022): Jurnal Sistem Mekanik dan Termal (METAL)
Publisher : Department of Mechanical Engineering, Universitas Andalas

The Adyatma Urban energy-efficient car is one of the works of the Riau University Mechanical Engineering team. This car has been designed and built in 2020 to be included in the 2020 Energy Efficient Car Contest (KMHE). At the Energy Efficient Car Contest (KMHE), incidents often occur in the form of a vehicle rolling over when turning. This can happen because the level of security of a vehicle is not good, such as the stability of the vehicle when turning. This research was conducted by analyzing the stability of the energy-saving Adyatma urban car when turning. The study was conducted using a quasi-dynamic calculation method which analyzes vehicles that move dynamically, but are analyzed as if they were in static conditions. Performed on dry and wet asphalt road types, with variations in speed of 30 km/hour, 40 km/hour, 50 km/hour and 60 km/hour, with turning radius 4.5 m, 5 m, 5.5 m and 6 m . After doing research on the Adyatma Urban car, the best stability was obtained when the vehicle was traveling on a flat road. Where for the maximum speed limit of the front wheels and rear wheels so as not to skid on dry asphalt and wet asphalt road types, respectively 21.53 km/hour and 18.75 km/hour and 21.2 km/hour and 18.54 km / h with a large turning angle of 19.35 °. The maximum speed limits to prevent rolling over on the front and rear wheels are 32.76 km/h and 45.05 km/h, respectively, with a turning angle of 19.35°.

Analisis Statik Kekuatan dan Tingkat Keamanan pada Spring Plate Girth Gear Kiln Pabrik Indarung V PTSP Lovely Son; Meifal Rusli; Dorce Yunirsyam
METAL: Jurnal Sistem Mekanik dan Termal Vol 1, No 1 (2017): Volume 1, No 1 (2017)
Publisher : Department of Mechanical Engineering, Universitas Andalas

This research discusses the static analysis of the kiln girth gear at Indarung cement Factory V PTSP due to replacement of the oldest girth gear with the newest one. The newest version of girth gear system has a smaller number of supporting spring (spring plate) in comparison with the previous one. Therefore, it is necessary to analyze the effect of the spring plate number to the strength and stiffness of the girth gear system to assure the kiln can work properly. In this research the effect of the spring plate number to the linear and torsional stiffness of the girth gear is evaluated. Based on the simulation results, decreasing of the spring plate number from 16 to 12, significantly affect the total stiffness of the supporting spring. Furthermore, it was found from the simulation that the total stiffness of the supporting spring much affected by the axial stiffness of the spring plate comparing to its lateral stiffness.

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.

Experimental & Numerical study on COVID-19 Waste Treatment Using a Gasification Type Incinerator: Laboratory Scale Ridwan Abdurrahman; Abrar Ridwan; Ahmad Kafrawi Nasution; Muhammad Kunta Biddinika
METAL: Jurnal Sistem Mekanik dan Termal Vol 5, No 2 (2021): Jurnal Sistem Mekanik dan Termal (METAL)
Publisher : Department of Mechanical Engineering, Universitas Andalas

Due to the COVID-19 pandemic, the use of personal protective equipment in the community has contributed to the increasing amount of medical waste. Medical waste from the COVID-19 pandemic is classified as infectious medical waste which is waste related to patients who need isolation from infectious diseases. one of the solutions offered is a medical waste incinerator. By studying the medical waste incinerator model in the hospital, the researchers finally took the initiative to do a simple incinerator design. the incinerator to be used is updraft gasifier type. It is hoped that the use of this incinerator will be able to solve the existing medical waste problem. In this study, the researchers use experemental approach to get the basic data from the reactor. After gain the data, then the researcher use numerical approach which is using ansys softwere to get a better look of the temperature contour on the rector. From both study, researcher can conclude tha it would take an upgrade on the existing blower to incenerate the medical waste on a safely temperature.

Analisis Frekuensi Pribadi Dan Modus Getar Struktur Pesawat Tanpa Awak Tipe Flying Wings Lovely Son; Rachmad Afandi
METAL: Jurnal Sistem Mekanik dan Termal Vol 2, No 2 (2018)
Publisher : Department of Mechanical Engineering, Universitas Andalas

One of the important consideration in designing an unmanned aerial vehicle (UAV) is the dynamics characteristic of UAV structure. The dynamics characteristic of UAV structure can be evaluated from its dynamic parameters such as : natural frequencies and mode shape. These parameters play an important role in determining the system’s dynamic response. In general, a low stiffness structure is more sensitive to the dynamic load in comparison with a high stiffness structure. In this research, modification UAV structural stiffness is conducted by varying rib and spar number and configuration on UAV wing. Evaluation of rib and spar number and configuration effect to the natural frequency and mode shape of UAV structure is conducted numerically and experimentally. The simulation results show that the natural frequencies increases with increasing of the number of spar and decreases with decreasing of the number of rib.

Kaji eksperimental pengaruh debit dan kemiringan poros terhadap daya mekanik prototype turbin ulir tipe AH-01 dan AH-02 Adly Havendri; Yul Hizhar; Oding Syamiro Perdana
METAL: Jurnal Sistem Mekanik dan Termal Vol 5, No 1 (2021): Jurnal Sistem Mekanik dan Termal (METAL)
Publisher : Department of Mechanical Engineering, Universitas Andalas

The potential for renewable energy sources in Indonesia is rich enough to be used as an alternative energy source. The availability of hydro energy potential can be developed into a Mini Hydro Power Plant. One type of turbine that has been developed is the Archimedean turbine which is capable of utilizing low headwater sources. The AH-01 and AH-02 screw turbine prototypes have been made at Andalas University and testing was necessary to determine the optimal discharge for mechanical performance. Testing of the screw turbine prototype type AH-01 (screw angle 23°) and AH-02 (screw angle 26°) was carried out by varying the flow rate and shaft angle for the two types of screw turbine prototypes to determine mechanical performance and efficiency of the turbines. The test results show that the AH-02 screw turbine prototype has higher mechanical power than the AH-01 screw turbine prototype. The maximum mechanical power of each AH-01 and AH-02 screw turbine prototype is 5.77 and 7.54 Watts at a flow rate of 0.00139 m3/s.

Page 8 of 15 | Total Record : 143

6 7 8 9 10

Filter by Year

2017 2025

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

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

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