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All Journal Piston: Jurnal Teknologi
Salimin
Jurusan Teknik Mesin, Universitas Halu Oleo
Aerospace Engineering Automotive Engineering Industrial & Manufacturing Engineering Mechanical Engineering Physics

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Sistem Pengunci Pintu Otomatis Menggunakan Sensor Fingerprint Berbasis Arduino Ardian Sumantri; La Ode Ahmad Barata; Salimin
Piston: Jurnal Teknologi Vol 7 No 2 (2022): Desember 2022
Publisher : Program Pendidikan Vokasi Teknik Mesin

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (625.588 KB) | DOI: 10.55679/pistonjt.v7i2.17

Abstract

The increasing development of science and technology is marked by the rapid progress that occurs with the creation of increasingly sophisticated equipment as well as security systems such as door locks. The design of this tool aims to increase the security of the door and to increase the power of creativity, innovation and expertise. This system uses an Arduino microcontroller board that functions as a control center, a fingerprint sensor is used to open the lock from outside and an ultrasonic sensor is used to open the lock from inside the room, and this system is equipped with a conventional key as an unlocker if a problem occurs in the system. The results of testing this tool on the fingerprint sensor, the test is carried out using five fingers, where three fingers have been registered and two fingers are not registered. Two fingers that have been registered can be read and one finger that has been registered cannot be read, this can occur due to several factors such as dirty sensor fingers, incorrect finger positions and others. In the ultrasonic sensor there is no problem with the sensor. This tool has the advantage that the level of security is higher than conventional keys and has a conventional key as a backup in case of a problem with the system. This tool also has the disadvantage that it must always be connected to a power source, but in the event of a power outage, it can use batteries. Some components of this tool will also heat up if it is continuously connected to a power source but can be overcome by using a heatsink or other type of cooler.
Perancangan dan Pengujian Pompa Hidram Salimin; La Ode Ahmad Barata
Piston: Jurnal Teknologi Vol 6 No 2 (2021): Desember 2021
Publisher : Program Pendidikan Vokasi Teknik Mesin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55679/pistonjt.v6i2.35

Abstract

One technology that can be used to move water from a low place to a high place is a water pump without the use of electricity and fuel (Hydraulyc Ram/Hydraulic Pump). A water pump without the use of electricity and fuel (Hydraulyc Ram/Hydram Pump) is an automatic pumping device that uses water to lift some of the water flow to a higher place. The energy source for water pumps without the use of electricity and fuel (Hydraulyc Ram / Hydram Pumps) comes from high pressure which is caused by the phenomenon of water blowing due to a sudden change in speed of the water flow by closing the valve, so this pump does not require an external energy supply such as fuel oil or electricity. This article presents a report on the design, manufacture and performance field testing of hydraulic pumps. The test results show that the pump design can drain 0.3 liters/second of water with a maximum head of 8.1 meters and a distance of 10.5 meters. By looking at the potential for its use which is quite broad, research to optimize this pump needs to be continuously carried out in order to obtain a design that is quite accurate in accordance with field conditions in Indonesia.
Analisis Kekuatan Rangka Mesin Pencacah Nilam dengan Menggunakan Metode Elemen Hingga Nanang Endriatno; La Ode Ahmad Barata; Salimin
Piston: Jurnal Teknologi Vol 9 No 2 (2024): Desember 2024
Publisher : Program Pendidikan Vokasi Teknik Mesin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55679/pistonjt.v9i2.74

Abstract

Frames are often used as essential elements in the construction of machines and various other engineering products. The strength of the frame is significant in ensuring that the structure can withstand operational loads when used. Frame failure can cause severe damage, accidents, and substantial financial losses, so evaluating the strength of the frame before production is a critical step in the design process. This study aims to analyze the mechanical behavior of the components or frames of the patchouli chopping machine based on the maximum stress, displacement, and safety factor of the designed frame. The research method using finite element simulation technology is an efficient approach to analyzing the performance of frame structures. By utilizing simulations, a comprehensive evaluation of various parameters such as stress, displacement, and frame safety can be carried out. This process helps predict the structure's response to multiple loads received by the system. The simulation results using the finite element method show that the L-profile frame 40x40x3 mm with a cross-sectional area of ​​307.863 mm2 can withstand a maximum load of 1000 N with a maximum deformation of 0.2479 mm, which occurs at the load center. The von Mises stress distribution shows that the stress that occurs in the L-profile steel is 28.8 MPa. This value is far below the material yield strength threshold of 207 MPa. The maximum Safety Factor value that occurs in the frame is 15 ul, and there is no safety factor value below 1. The simulation results show that the analyzed frame is safe and meets the specified design requirements
Co-Authors Ardian Sumantri La Ode Ahmad Barata Nanang Endriatno