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Comparison of The Pull Strength of Sisal Lamina Matrix Polymer Fiber Composite Materials (Agave Sisalana) Fikran, FIkran; Simon, Christof Geraldi; ka’ka, Simon
INTEK: Jurnal Penelitian Vol 10 No 2 (2023): October 2023
Publisher : Politeknik Negeri Ujung Pandang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31963/intek.v10i2.4582

Abstract

Composites are one of the material engineering technologies developed today because composites can combine several material properties that differ in characteristics into new properties by the planned design. The purpose of this study was to determine the mechanical properties of the influence of the combined arrangement of lamina angle variations and the composition of fiber and matrix mixtures. This study uses polyester resin, catalyst, and sisal fiber as materials in the manufacture of composite materials. In specimen manufacturing refers to ASTM D 638-02 type 3 test standard for tensile tests. The tensile test results of sisal fiber lamina composite materials assuming a composition ratio of 5% fiber and 95% resin produce maximum tensile stress of m = 16.9854 N/mm2 and a maximum strain of ɛ = 4.5232% while assuming a composition ratio of 15% fiber 85% resin produces maximum tensile stress of sm = 40.1422 N/mm2 and maximum strain of ɛ = 8.9744 %, Based on the test results, the addition of fiber mixture composition increases the tensile strength and toughness of the material. The composition of 5% fiber 95% and 15% fiber 85% resin (15S-85R)produces a maximum tensile stress of sm =  45.1823 N/mm2 and a maximum strain of ɛ = 9.6849 % with a maximum load Fm = 10902.4996 N. The more fiber contained in the sisal fiber lamina composite material, the higher the tensile stress produced, this shows the tension is directly proportional to the number of fibers contained in the composite.
Sistem Monitoring Fluida Kompresor pada Timbangan Terigu Mill C di PT. Eastern Pearl Flour Mills Ilham Septiansyach, Andi; Solihin, Ahmad; Ka’ka, Simon; Taufik, Akhmad
Jurnal Teknik Mesin Sinergi Vol 23 No 2 (2025): Oktober 2025
Publisher : Politeknik Negeri Ujung Pandang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31963/sinergi.v23i2.4996

Abstract

This research aims to develop a compressor fluid monitoring system based on the Internet of Things (IoT) for industrial weighing machines at PT. Eastern Pearl Flour Mills, supporting the implementation of Industry 4.0. The system is designed to monitor pressure, flow, and fluid temperature in real-time, enhancing the efficiency and reliability of machine operations. The research process includes the design of precise measuring instruments and a monitoring system utilizing ESP8266 and LoRa Ra-02 technology for data transmission. Fluid sensor data is processed and displayed via a web-based platform and an Android application. The study also involves sensor calibration to ensure accuracy, as well as system performance evaluation through experimental methods, user testing, and data analysis. The results of this research are expected to significantly improve process efficiency and control in weighing machines, providing a strong foundation for IoT technology implementation in operational management within the flour milling industry.
Penerapan Sensor dan Aktuator pada Mesin Basketball Arcade Afif Rahmat, Muh; Pasulu', Yaston; Taufik, Akhmad; Ka’ka, Simon
Jurnal Teknik Mesin Sinergi Vol 23 No 2 (2025): Oktober 2025
Publisher : Politeknik Negeri Ujung Pandang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31963/sinergi.v23i2.5703

Abstract

Permainan bola basket konvensional membutuhkan ruang luas dan biaya tinggi, sedangkan pencatatan skor manual rawan salah. Mesin basketball arcade ditawarkan sebagai solusi yang lebih praktis dan terjangkau dengan dua kunci teknologi sensor inframerah (IR) untuk mendeteksi bola masuk (skor) secara otomatis, serta aktuator motor DC untuk menggerakkan ring kiri–kanan dan motor servo untuk mekanisme penahan/pelepasan bola agar permainan menantang namun tetap terkontrol. Tujuan dari penelitian ini adalah untuk menghitung poin/score dengan menggunakan sensor inframerah, serta meningkatkan tantangan bermain dengan menggunakan aktuator untuk menggerakan ring ke kiri dan ke kanan. Mesin basketball arcade ini juga dapat menjadi alternatif bermain bola basket dengan ruangan minimBerdasarkan hasil dan deskripsi diatas, dapat disimpulkan bahwa sensor inframerah dapat digunakan untuk menghitung poin/score pada mesin Basketball Arcade, dengan tingkat keberhasilan tertinggi mencapai 82,41% di seluruh mode dan durasi. Serta motor dc dan servo dapat digunakan sebagai aktuator untuk mesin basketball arcade.
Pengembangan Mobilitas dan Sensor pada Robot Pemetik Buah Stroberi Fahrun Maulana, Ahmad; Putri; Ka’ka, Simon; Paisal
Jurnal Teknik Mesin Sinergi Vol 24 No 1 (2026): April 2026
Publisher : Politeknik Negeri Ujung Pandang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31963/sinergi.v24i1.5771

Abstract

This research aims to develop the mobility and sensor systems of a strawberry-picking robot so that it can move stably in garden areas and harvest fruit without causing damage. The research method includes the design of the mechanical structure, assembly of an electronic system based on Raspberry Pi and Arduino Uno, and programming of strawberry ripeness detection using the You Only Look Once (YOLOv8) algorithm. The robot is designed with four wheels driven by DC motors, a manipulator equipped with a servo motor, and a distance sensor to maintain the position of the end-effector relative to the fruit. The test results show that the YOLOv8-based detection system is capable of identifying the ripeness level of strawberries with consistent accuracy. The manipulator can adjust its position relative to the fruit and perform automatic picking. The mobility system demonstrates stable movement on uneven terrain and is able to stop automatically when a ripe fruit is detected. The integration between the detection system, manipulator control, and drive system operates in real time, although there is still a slight delay due to the processing limitations of the Raspberry Pi 5. It can be concluded that the development of mobility and sensor systems in the strawberry-picking robot can improve the effectiveness of automated harvesting, minimize fruit damage, and support efficiency in agricultural production.
Sistem Distribusi BBM Dengan Metode Injeksi Menggunakan Pompa Kendali On-Off Alexander, Agustinus; Geraldi Harold; Ka’ka, Simon; Taufik, Akhmad
Jurnal Teknik Mesin Sinergi Vol 24 No 1 (2026): April 2026
Publisher : Politeknik Negeri Ujung Pandang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31963/sinergi.v24i1.5896

Abstract

This research, entitled “Fuel Distribution System Using Injection Method with On-Off Controlled Pump”, was conducted at PT Pertamina Patra Niaga Integrated Terminal Makassar. The device was developed as an effort to improve the effectiveness of the fuel distribution process and to reduce the risk of environmental pollution caused by temporary equipment that often leads to fuel spills around the temporary storage tank (sumb tank). The designed system is a permanent fuel distribution system equipped with a piping network, pump and motor control system, and digital pressure measurement. The experiment was carried out using 5,000 KL of fuel as the sample with five pressure variations, namely 10 bar (15%), 8.5 bar (25%), 7 bar (50%), 6.5 bar (80%), and 5 bar (100%), each tested for 5 minutes. The results showed that the highest flow rate occurred at 10 bar pressure with a value of 0.0096 m³/s, although this condition is not recommended because it can cause unstable fluid flow and pump irregularities. When all valves in the injection system are fully open, the pressure becomes stable and the fuel flow remains consistent. The optimal condition was obtained at 5 bar pressure (100%) with a flow rate of 0.1659 m³/s.
PEMODELAN SISTEM AKTUATOR PNEUMATIK UNTUK PENGENDALIAN FLEKSIBILITAS BODI KENDARAAN Christof Geraldi Simon; Formanto Paliling; Risa Lasarus; Yusri Anugerah Manapa Ambabunga; Simon Ka'ka; Festo Andre Hardinsi
JURNAL CRANKSHAFT Vol. 9 No. 2 (2026): Jurnal Crankshaft Vol. 9 No. 2 (2026)
Publisher : Badan Penerbit Universitas Muria Kudus

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24176/cra.v9i2.17420

Abstract

This research aims to develop a flexible vehicle body system based on pneumatic actuators to increase the dimensions of limited parking spaces. The methods used include system modeling, electropneumatic control array design, simulation using FluidSIM, and experimental prototype implementation and testing. The control system is designed using a 5/2 directional valve with dual solenoid actuation (Y1 and Y2) that regulates the flow of pressurized air into the pneumatic cylinder to produce a translational motion of the piston that changes the length of the vehicle body linearly Modeling is focused on the relationship between control inputs, actuator response, and structural dimensional changes. Simulations are performed to validate the control logic and response characteristics prior to physical implementation. A length flexibility target of 300 mm is set as a design parameter to meet the parking needs of tight spaces. The test results showed that the system was able to change the length of the vehicle body from 2340 mm to 2040 mm, resulting in a range of flexibility of 300 mm according to the target. These findings show that the proposed method is effective in producing a controlled and applicative adaptive body mechanism, and has the potential to be an engineering solution to improve the efficiency of parking space utilization in land-limited environments.
Analisa Mekanisme Ragum Penjepit Benda Kerja Menggukan Aktuator Pneumatik pada Mesin Bor Christof Geraldi Simon; Simon ka'ka; Festo Andre Hardinsi; Formanto Pailing
Science and Education Journal (SICEDU) Vol 5 No 2 (2026): Science and Education Journal 2026
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/sicedu.v5i2.872

Abstract

This study aims to determine the magnitude of the effective thrust on the cylinder and the size of the centrifugal force on the drilling machine, and to know the ratio of the effect of effective force and centrifugal force. The method used in this study is to regulate air pressure, starting from 1-6 bar pressure. In Torak Cylinder Effective Push Style, shows a comparison that, the greater the pressure, P (bar) given to the piston cylinder the greater the thrust force value, Fef (N) produced. In the centrifugal force, there is a characteristic that, the smaller the feed speed, V (mm / min) at the spindle rotation, the greater the value of the centrifugal force that occurs in the drilling machine. In the thoracic effective thrust cylinder, and, centrifugal force shows the effect of the relationship between the two forces. This relationship affects the strength of the workpiece stress on the vise. the value of effective thrust force at pressure 2 (Bar) has a value of 883.12 (N) and centrifugal force of 551.301 (N), this shows that the effective thrust produced is greater than the centrifugal force, so it can grip (strong gripping) ) workpiece in vise.