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INDONESIA
Jurnal Teknologi Terapan
Published by Politeknik Negeri Indramayu
ISSN : 24773506     EISSN : 25491938     DOI : -
Core Subject : Science, Engineering,
Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Engineering Mechanical Engineering
JTT memuat naskah hasil-hasil penelitian di bidang teknologi terapan.
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 292 Documents
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PERBAIKAN KEKERASAN DAN STRUKTUR MIKRO LOGAM KUNINGAN SEBAGAI BAHAN PROPELLER DENGAN METODE SHOT PEENING Margono Margono; Yanti Pasmawati; Nugroho Tri Atmoko; Rizqi Ilmal Yaqin; Bambang Hari Priyambodo
Jurnal Teknologi Terapan Vol 9, No 2 (2023): Jurnal Teknologi Terapan
Publisher : P3M Politeknik Negeri Indramayu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31884/jtt.v9i2.431

Abstract

Brass metal is widely used as a supporting equipment material, one of which is a propeller. The propeller itself is one component of the boat that rotates and produces thrust energy. The continuous use of propellers results in degradation or a decrease in quality and service life. The degradation of the propeller is affected by the hardness, toughness, and corrosion resistance of the working environment. To improve the quality of the propeller, shot peening treatment was carried out on its surface. Shot peening is a continuous shooting process with fine particles in the form of steel balls on the surface of the object. Shot peening can increase the density of the microstructure and produce compressive residual stress which causes the surface hardness to also increase. Shot peening is carried out with variations in duration of 2, 4, 6, 8, and 10 minutes, 100 mm shooting range, and 7 Bar firing pressure. The steel ball particles used have a hardness of 40-50 HRC and a diameter of 5 mm. The results of the hardness test showed an increase in the surface hardness of the spesimens for a duration of 2, 4, 6, 8, and 10 minutes, respectively 189, 294, 302, 324, 330, dan 341 HV. The microstructure of the spesimen after shot peening looks tighter and denser. The highest hardness value is 341 HV or an increase of 80% compared to raw material.
PENGUJIAN ALGORITMA YOLO UNTUK DETEKSI CACAT PADA PRODUK HASIL ALUMUNIUM CASTING PADA INDUSTRI OTOMOTIF Lilansa, Noval; Pratama, Rizqi Aji; Tanadi, Richard; Natasasmita, Renold Nindi Kara
Jurnal Teknologi Terapan Vol 10, No 2 (2024): Jurnal Teknologi Terapan
Publisher : P3M Politeknik Negeri Indramayu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31884/jtt.v10i2.664

Abstract

This research addresses the challenges faced by one of the automotive parts manufacturing plants in Indonesia, in detecting leaks in car components manufactured through aluminum die casting. Existing manual monitoring methods are time-consuming, prone to human error, and pose risks to product quality and operational safety. To overcome these challenges, this research proposes the application of machine learning, specifically computer vision techniques, such as Object Detection to identify and localize gas bubbles using a Leak Tester Machine equipped with a camera sensor equipped with the YOLO algorithm to improve the efficiency of the detection process. As technology develops, there is a shift from manual approaches to more efficient automated systems, utilizing computer vision algorithms, hardware such as Nvidia Jetson and Digital Camera. The YOLO algorithm shows good accuracy in overcoming defect detection in aluminum casting products, achieving a precision of 0.94, recall of 0.82, and mAP@0.5 of 0.90. The performance of the YOLO algorithm in detecting gas bubbles is 100 - 120 ms per frame from thestreaming camera so that the fps performance is 10 fps (frames per second).
SIMULASI DAN ANALISIS INJEKSI PLASTIK BESERTA OPTIMASI BERBASIS SOFTWARE CAE UNTUK PRODUK KOMPONEN KELISTRIKAN Arif Budi Wicaksono; Reyhan Aziz Zuliansyah; Santo Ajie Dhewanto; Muhammad Iwan Nur Fauzan
Jurnal Teknologi Terapan Vol 10, No 1 (2024): Jurnal Teknologi Terapan
Publisher : P3M Politeknik Negeri Indramayu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31884/jtt.v10i1.505

Abstract

The research focuses on the simulation and analysis of injection molding of electrical components that can be carried out by the manufacturing process. The design of the electrical components has been made so it is necessary to follow up on the design for an injection molding simulation. The injection parameters including injection pressure, clamp open time, mold temperature, and melt temperature are fixed, but if the results are less than optimal then changes to the fixed parameters can be made. Changes to the cavity layout and gating system are varied to find out how much influence it has on product results and to find the most optimal results from the simulations that have been done. In the simulation results section, if there is a short-shot defect, the result cannot be taken into account in the simulation results for analysis. The most optimal injection simulation results from inbow electrical terminal components with automatic timer modules made by design molds.
DETEKSI EMOSI PADA TEKS BERBAHASA INDONESIA MENGGUNAKAN PENDEKATAN ENSEMBLE Pane, Syafrial Fachri; Abdullah, Faisal; Habibi, Roni
Jurnal Teknologi Terapan Vol 10, No 2 (2024): Jurnal Teknologi Terapan
Publisher : P3M Politeknik Negeri Indramayu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31884/jtt.v10i2.551

Abstract

Emotion in written text is often difficult to recognize due to the absence of visual cues such as facial expressions or vocal intonation, which typically aid in understanding a person's feelings. This research aims to address this challenge by developing an emotion detection model for Indonesian text. The approach used is Ensemble Learning, combining three Machine Learning models: SVM, KNN, and XGBoost, to optimize emotion detection results. The main contribution of this research is the implementation of the Ensemble method for detecting emotions in Indonesian text, with performance evaluated using metrics such as accuracy, precision, recall, F1 score, and ROC AUC. The evaluation results show that the Ensemble model outperforms previous models, achieving an accuracy, precision, recall, and F1 score of 87.14%, and a ROC AUC score of 97.90%. To further enhance performance, this study utilizes GridSearchCV for hyperparameter tuning of the SVM and XGBoost models and employs the Automated Machine Learning (AutoML) tool TPOT to generate the KNN model.
ANALISIS PENGGUNAAN KOMBINASI WORD EMBEDDING, RESNET, DAN GRU PADA MODEL PIX2CODE Fadly Triansyah Rahman; Farhan Rahmat Abdillah; Transmissia Semiawan; Nurjannah Syakrani
Jurnal Teknologi Terapan Vol 10, No 1 (2024): Jurnal Teknologi Terapan
Publisher : P3M Politeknik Negeri Indramayu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31884/jtt.v10i1.356

Abstract

The pix2code model is a machine learning model that can automate the mockup implementation process into code from a Graphical User Interface (GUI). First developed by Tony Beltramelli, this model has a rating of 77%. The development of the pix2code model is considered important because, by increasing accuracy, the code generated by the model is accurate. This study develops a pix2code model using a combination of word embedding, Residual Network (ResNet), and GRU methods. The data used comes from the research of Tony Beltramelli as many as 3500 datasets consisting of mockup images and the context of the image. The results of this study indicate that the combination of word embedding, ResNet, and GRU has succeeded in increasing the accuracy of the pix2code model from 77% to 80%. In addition, the value of the distribution variance of the pix2code model's accuracy decreased from 0.078782 to 0.046656. This shows that with the variation of the data used, the accuracy of the developed pix2code model becomes more stable. 
IMPLEMENTASI GAMIFIKASI DALAM PLATFORM PEMBELAJARAN PEMROGRAMAN BAHASA JAVA BERBASIS WEBSITE Saputra, Pramana Yoga; Yunianto, Dika Rizky; Rozi, Imam Fahrur; Nurhasan, Usman; Wijanarko, Eko Setio; Al Huda, Muhammad Iqbaluddin
Jurnal Teknologi Terapan Vol 10, No 2 (2024): Jurnal Teknologi Terapan
Publisher : P3M Politeknik Negeri Indramayu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31884/jtt.v10i2.637

Abstract

The Industry 4.0 era is characterized by a revolution involving automation and artificial intelligence, distinguishing it from previous generations. This automation is driven by machine learning, a system that enables machines to learn from experience and data. Machine learning requires strong programming skills, which are developed through effective learning processes. However, many students encounter difficulties in learning programming, particularly during the pandemic, which has hindered face-to-face instruction. These difficulties include a lack of motivation and understanding in problem-solving. To address these issues, researchers conducted a study by developing a web-based programming learning platform that implements Gamification learning methods. This technology-enhanced learning platform is specifically designed for the Java programming language and aims to enhance student motivation and understanding through online learning modules and practical exercises. The results of this study demonstrate that the use of the learning platform has a significant positive impact, as evidenced by Wilcoxon test results. The testing results show that 20 users of the system experienced improved learning outcomes. The Asymp.Sig (2-tailed) value of 0.000 indicates that there is a significant effect of using the learning platform on the Java programming learning outcomes for users..
PERANCANGAN DAN ANALISIS CETAKAN INJEKSI PLASTIK DENGAN PERANGKAT IN-MOLD CLOSING UNTUK PRODUK TUTUP BOTOL FLIP-TOP Dadan Heryada Wigenaputra; Abyanuddin Salam; Hendrawan Hadi Sulistio; Septiasari Nur Hasanah
Jurnal Teknologi Terapan Vol 10, No 1 (2024): Jurnal Teknologi Terapan
Publisher : P3M Politeknik Negeri Indramayu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31884/jtt.v10i1.521

Abstract

Proses pelipatan produk Tutup Botol Flip-Top biasanya dilakukan secara manual oleh operator. Produksitutup botol yang masal mengakibatkan siklus waktu pelipatan tutup, teknik, dan tekanan dalam menutuppada setiap Tutup botol Flip-Top menjadi tidak sama. Hal tersebut mengakibatkan kualitas dari produkflip-Top tidak seragam. Untuk itu diperlukan teknologi yang dapat mengatasi persoalanketidakseragaman hasil produksi pada produk flip-Top Cap tersebut. Perangkat in-mold closing adalahsolusi untuk mengatasi hal tersebut, yaitu perangkat tambahan yang dipasang pada cetakan injeksi untukmelakukan proses menutup produk tutup flip-Top secara otomatis saat produk masih didalam cetakan.Dengan menggunakan perangkat in-mold closing ini, waktu pelipatan produk dan tekanan saat pelipatanakan seragam, dengan demikian produk flip-Top hasil produksi akan memiliki kualitas yang seragam.Dari penelitiana ini dihasilkan rancangan mold dan perangkat in-mold closing untuk produk flip-top cap,jalur pelipatan produk pada perangkat in mold closing dan mengetahui cycle time setelah memakaiperangkat in mold closing. Tahapan penyelesaian dimulai dengan mengidentifikasi produk flip top cap ,mengonsep cetakan injeksi (mold), merancang jalur pelipatan, merancang konstruksi perangkat in moldclosing (IMC), melakukan analisis pelipatan produk, cycle time dan filling pada mold. Hasil analisissimulasi plastik flow, menunjukan hasil produk tidak mengalami cacat.
OPTIMASI BANDWIDTH MENGGUNAKAN STUB MATCHING IMPEDANSI PADA RANCANG BANGUN ANTENA MONOPOLE ULTRA-WIDEBAND Darsono, M; Radiansyah, Farid Ahmad
Jurnal Teknologi Terapan Vol 10, No 2 (2024): Jurnal Teknologi Terapan
Publisher : P3M Politeknik Negeri Indramayu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31884/jtt.v10i2.621

Abstract

The microstrip monopole antenna design study was developed to support Ultra-Wideband (3.1GHz-10.6 GHz) wireless communication technology. This research aims to obtain a minimalist antenna prototype with the ability to operate in the UWB frequency region. Bandwidth optimization is carried out to increase data speed access capacity in wireless communications. The antenna design has two structures in the conductor layer of the RT DUROID 5880 type substrate material. The surface layer structure is a square patch with a transmission line and an impedance stub. For the bottom layer of the substrate, a structure forms the DGS technique. The simulation method is carried out on the antenna design to obtain parameters, such as bandwidth return loss -10dB is 1.29 (fractional) or 9700MHz (absolute) and bandwidth measurement results (absolute) (12,800 MHz-absolute), VSWR (1:2), input impedance at the 3.8GHz frequency (Zin=31.23Ω-j4.12Ω), and the 13.6GHz frequency (Zin=62.93Ω+j28.4Ω). For radiation polarization, the beam width is 116 degrees and the directional strength (Gain) value is 3.15dBi. The entire antenna has the performance characteristics of operating in the Ultra-Wideband spectrum at C-band, X-band and Ku-band frequencies. Omnidirectional polarization, vertical linear polarization, and low gain and minimalist support communication devices.
OPTIMASI PARAMETER PEMBUBUTAN PADA MATERIAL AISI 4340 MENGGUNAKAN METODE TAGUCHI DAN GREY RELATIONAL ANALYSIS Otto Purnawarman; Achmad Sambas; Bella Rukmana
Jurnal Teknologi Terapan Vol 10, No 1 (2024): Jurnal Teknologi Terapan
Publisher : P3M Politeknik Negeri Indramayu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31884/jtt.v10i1.510

Abstract

In the turning process, the parameters of cutting speed (Vc), feed rate (f), and nose radius (rε) are things that influence the quality of the product. This study aims to optimize the relationship between the parameters of tool wear and surface roughness. AISI 4340 low alloy steel workpiece material and carbide insert cutting tools are used. The method used is a statistical application approach with the Taguchi method, gray relational analysis (GRA) techniques to get the best level combination for multi-response results and Analysis of variance (ANOVA) to determine factors that affect tool wear and surface roughness. The factor used is cutting speed. (Vc), feed rate (f), and nose radius (rε) with three levels and the responses are surface roughness (Ra) and tool wear (VB). The results of the ANOVA show that cutting speed (Vc) and feed rate (f) are significant factors for surface roughness and tool wear. The optimal factor level values for obtaining surface roughness (Ra) and minimum tool wear (VB) were Vc level 1 = 73.73 m/min, f level 1 = 0.1 mm/rev, and rε level 1 = 1.2 mm.
PENGEMBANGAN KENDALI TERBANG BERBASIS SLIDING MODE CONTROL DENGAN ELIMINASI CHATTERING PADA QUADROTOR UNTUK MENGATASI GANGGUAN ANGIN TAK TENTU DI KAWASAN JAWA BARAT Zuhri, Muhammad Rizki; Wibowo, Singgih Satrio; Soetanto, Maria Fransisca
Jurnal Teknologi Terapan Vol 10, No 2 (2024): Jurnal Teknologi Terapan
Publisher : P3M Politeknik Negeri Indramayu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31884/jtt.v10i2.677

Abstract

Quadrotors are intrinsically unstable. If there is a sudden wind disturbance, this wind disturbance will be amplified so that the quadrotor's attitude becomes uncontrollable. West Java is one of the regions in Indonesia that has quite high wind disturbances. The recorded daily wind disturbance reached 6.99 m/s with a maximum value of 9.95 m/s. In this research, a control system based on the sliding mode control (SMC) algorithm is used. The advantage of this control algorithm is its ability to compensate for uncertain disturbances. This research investigates the implementation of the SMC control into a quadrotor by incorporating random wind disturbance aspects into the model. The research was carried out numerically with simulations using MATLAB/Simulink, with the position variables being the main focus. Quadrotor equipped with SMC has a lower mean error value for the desired position relative to the real position. This shows that the SMC control algorithm that has been created is able to properly overcome random wind disturbances that occur in the West Java area.

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