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Tulus Burhannudin Sitorus
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Faculty of Engineering, University of Sumatera Utara J17 Building 3rd Floor Mechanical Engineering Department Jl. Almameter Kampus USU Medan Telp.061-8213250, Fax 061-8213250
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Dinamis
Published by TALENTA PUBLISHER
ISSN : 02167492     EISSN : 28093410     DOI : https://doi.org/10.32734/dinamis
Core Subject : Science, Education, Engineering,
Education Energy Engineering Industrial & Manufacturing Engineering Mechanical Engineering Transportation
Focus and Scope Dinamis Journal is a national electronic journal as a means to publish scientific works in Mechanical engineering and other relevant fields. This journal has strengths and focuses on the sub-fields of energy conversion, structural materials and materials engineering, production processes, and maintenance systems which are all part of mechanical engineering science. This journal is managed by the Department of Mechanical Engineering, Faculty of Engineering, University of Sumatera Utara. Scientific works published in the Dinamis Journal are the results of research, both experimental, literature reviews, and simulations and contribute significantly to the development of science and technology. The Dinamis Journal publishes scientific papers in the field of Mechanical engineering related to the following fields of study: Experimental and Computational Mechanical Systems Solar Energy Fuel Cell Noise and Vibration Alloy and Processing
Arjuna Subject : Teknik (semua kategori) - Teknik Mesin
Articles 213 Documents
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Effect of Forging Process on Impact Strength in Brass Materials Muhammad Yusuf Rahmansyah Siahaan Yusuf Siahaan; Rakhmad Arief Siregar Rakhmad A. Siregar; Amru Siregar; Ahmad Yunus Nasution
Dinamis : Scientific Journal Mechanical Engineering Vol. 11 No. 1 (2023): Dinamis
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/dinamis.v11i1.12476

Abstract

Brass material which generally has low corrosion properties and low frictional forces is very suitable for use as a construction material, piping, ammunition sleeves, jewelry and household appliances. Knowledge of strengthening the mechanical properties of brass materials is needed. In this study, the brass material was forged so that it experienced a volume reduction of 44% at three forging temperatures namely room temperature (28°C), 350°C and 450°C. To observe the impact strength, the brass material specimens were tested using the Charpy Impact tester. The ratio of energy absorbed for forged and unwrought brass specimens was observed using linear regression. The results of physical observations of the fracture pattern show a complete fracture, and the form of a grained fracture. which can be classified as brittle.
Analysis Of River Cleaning Ship Design With The Trasher Boat Concept By Using MAXSURF: - Ahmad Yunus Nasution; Syamsuri Alpha Joshua Sinamoi
Dinamis : Scientific Journal Mechanical Engineering Vol. 11 No. 1 (2023): Dinamis
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/dinamis.v11i1.12486

Abstract

Ships are a means of transportation for moving materials and goods from one place to another. Along with this increase, it was also followed by the development of other industries so that it had an impact. However, in increasing these activities, in addition to generating benefits, it also creates new impacts through the waste produced. Several work boats are made to solve problems related to the type of work according to needs. The solution that can be used to overcome the accumulation of garbage in the river is to use the help of a Trash Skimmer Boat. This work boat is a type of special ship that is used to carry out waste collection in rivers, lakes, seas and canals. By using the help of Maxsurf Software, the main size is L = 100 cm, B = 30 cm H = 15 cm, T = 3.54 cm with a payload capacity of 3 kg. It has the following data: Displacement = 6,968 kg ; block coefficient (Cb) = 0.387; Prismatic Coef (Cp) = 0.832. Keyword : Ship, Workboat, Trasher boat, Trash Skimmer Boat
Design of an Automated Sliding Door Using Ultrasonic Sensors and an Arduino Board to Halt the Spread of Covid-19 Sidik Susilo; Erny Listijorini; Fikri Ardiansyah; Shofiatul Ula Ula
Dinamis : Scientific Journal Mechanical Engineering Vol. 11 No. 1 (2023): Dinamis
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/dinamis.v11i1.12610

Abstract

Covid-19 is an infectious disease caused by acute respiratory syndrome coronavirus 2 (Sars-CoV-2), therefore a study is conducted to break the chain the spread of the coronavirus is a touchless automatic door. In this study, an automatic door is made, and this door uses an Arduino-based ultrasonic sensor. This research aims to be able to design and build sliding doors for automatic doors and can create an Arduino system that is suitable for automatic doors and can use ultrasonic sensors as a touchless medium. This research uses tools and materials, namely Arduino Uno, ultrasonic sensor, dc motor, l298n motor driver, and for the driving mechanism is a dc motor connected to the pinion sprocket and a chain connected to the door surface. This research designs doors in SolidWorks 2018 software and builds doors with specifications (Material: PVC, Height: 1900 mm, Width: 610 mm, Thickness: 40 mm, Mass: 7.5 kg, Weight: 73.5 N) in a street workshop in Leuweung Sawo Cilegon-Banten, as well as making an Arduino system for doors that can move automatically by making a coding program in the Arduino IDE software, for opening and closing the door with an ultrasonic sensor that is set at a distance of about 5 cm..

Page 22 of 22 | Total Record : 213

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