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All Journal International Journal of Power Electronics and Drive Systems (IJPEDS) AUSTENIT Mechatronics, Electrical Power, and Vehicular Technology Jurnal INKOM EMITTER International Journal of Engineering Technology Turbo : Jurnal Program Studi Teknik Mesin Turbulen : Jurnal Teknik Mesin Teknologi Indonesia Jurnal Teknologi Bahan dan Barang Teknik MACHINERY: Jurnal Teknologi Terapan
Hendri Maja Saputra
Indonesian Institute Of Sciences (LIPI)
Automotive Engineering Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering

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Rancang Bangun Sistem Kontrol Mekanisme Pelacakan Matahari Beserta Fasilitas Telekontrol Hemat Energi Midriem Mirdanies; Rizqi Andry Ardiansyah; Hendri Maja Saputra; Aditya Sukma Nugraha; Estiko Rijanto; Adi Santoso
Journal of Mechatronics, Electrical Power and Vehicular Technology Vol 2, No 1 (2011)
Publisher : National Research and Innovation Agency

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/j.mev.2011.v2.31-40

Abstract

Solar energy produced by concentrated solar heat collector panels requires tracking mechanisms for a more optimal direction. This paper presents the design and construction of a low energy solar tracking control system with telecontrol facilities. To accelerate the movement of the panel in always adjusting itself to the direction of the sun, a combination of the timer and light sensor was used. In this control system, the reference signal is taken from two pieces of light sensors while the feedback is taken from the position and temperature sensors. The program has been developed using C language and was implemented on the microcontroller ATMega8535 as the brain of the system. Telecontrol facilities for monitoring the data to a computer uses transceiver modules via RS-232 connection. A DC motor having power capacity of 0.74 watts was used and was clutched with 1:7,300 gearbox ratio. Experiments on light sensor characteristics and simulated movement of the panel were carried out. From the light sensor experiment it can be concluded that the sensor produces 0-4 volt output signal when bright 3.3-3.9 volts, when cloudy and 1.5-3.3 volts when sunny. From the simulation of panel movement, it is known that the solar tracking control system moves the panel and tracks the direction of the sun movement. 
Analisis Pengaruh Rantai dan Sproket terhadap Konsumsi Daya Motor pada Sistem Track Mobile Robot Hendri Maja Saputra; Eka Putera; Dalmasius Ganjar Subagio
Jurnal Teknologi Bahan dan Barang Teknik Vol 6, No 1 (2016)
Publisher : Center for Material and Technical Product

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (661.446 KB) | DOI: 10.37209/jtbbt.v6i1.66

Abstract

Analysis of the effect of using a chain and sprocket on the motor power consumption in mobile robot platform, which uses a system of tracks has been done. This study is currently important to avoid mistakes when selecting motor power to be choose when designing a mobile robot that uses a lot of chains and sprockets. The results of this research might be used as a basis for designing mobile robot track systems, especially in predicting an increase the power consumption of the motor. In the experimental set-up, 20A ACS712 sensor was coupled in series to the motor cables to get the current consumption, while the module voltage divider was used to retrieve the value as the voltage.  The sensors were connected to the Arduino Nano V3 microcontroller to process the data obtained were then stored and displayed on a laptop. Tests were conducted on five conditions, namely the complete transmission (full load), minus one flipper, minus two flippers, without the track wheel (connected to the shaft), and free-load motors. The results showed that use of chains and sprockets at full load conditions increases the consumption of motor power of 215% compared with that of no load.Analisis pengaruh penggunaan rantai dan sproket terhadap konsumsi daya motor pada platform mobile robot yang menggunakan sistem track telah dilakukan. Penelitian ini saat penting dilakukan untuk menghindari kesalahan pada saat pemilihan daya motor yang akan digunakan ketika rancang bangun mobile robot yang banyak menggunakan rantai dan sproket. Hasil penelitian ini diharapkan dapat digunakan sebagai dasar dalam merancang mobile robot sistem track, terutama dalam memprediksi peningkatan konsumsi daya motor. Pada set-up pengujian, sensor ACS712 20A dipasangkan secara seri pada kabel motor untuk mendapatkan konsumsi arus, sedangkan modul pembagi tegangan digunakan untuk mengambil nilai tegangan. Sensor-sensor tersebut dihubungkan dengan mikrokontoler Arduino Nano V3 untuk mengolah data yang didapat yang kemudian disimpan dan ditampilkan pada laptop. Pengujian dilakukan pada lima kondisi, yaitu transmisi lengkap (beban penuh), minus 1 flipper, minus 2 flipper, tanpa track wheel (terhubung dengan poros), dan motor bebas beban. Hasil penelitian menunjukkan bahwa penggunaan rantai dan sproket pada kondisi beban penuh meningkatkan konsumsi daya motor sebesar 215% dari pada konsumsi daya pada keadaan bebas beban.
Rancang Bangun Umpan Balik Eksternal untuk Kendali Sudut Motor Servo Berbasis Arduino Hendri Maja Saputra; Totok Agung Pambudi; Dalmasius Ganjar Subagjo
Jurnal Teknologi Bahan dan Barang Teknik Vol 6, No 2 (2016)
Publisher : Balai Besar Bahan dan Barang Teknik

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (752.997 KB) | DOI: 10.37209/jtbbt.v6i2.68

Abstract

The design of external feedback to control the angular position AC servo motor Arduino-based using rotary encoder sensor has been done. The objective of this research was to minimize the error of the absolute angle of the motor shaft. Position control in AC servo motors MHMD022G1U model was relative, so the chances of mistake in the angle position would be relative very large, especially at the times of pulse distortion or when the power supply has lost. Sensor rotary encoder EP50S8-1024-2F-P-24 type coupled to the motor shaft to read the actual angle was used as an external feedback. A rotary encoder which describes the actual angle position of the AC servo motor generated digital code 10-bit, which was then converted into decimal data in the range of 0-1023 using a microcontroller Arduino Nano V3. Feedback data received by Arduino microcontroller was used to adjust the position or angle of the shaft from AC servo motors. The results showed that the control angle AC servo motors on all variations of a frequency or speed contained oscillation, where the standard deviations were 1.62º at 1 kHz, 1.92º at 5 kHz, 2.29º at 10 kHz, and 19.01º at 50 kHz. However, the average value of the angular position of motor rotation could follow the reference given by the potentiometer.Rancang bangun umpan balik eksternal untuk kendali posisi sudut AC motor servo berbasis Arduino menggunakan sensor rotary encoder telah dilakukan. Penelitian ini dilakukan untuk meminimalisir kesalahan posisi sudut absolut dari poros motor. Kendali posisi pada AC motor servo tipe MHMD022G1U diamati bersifat relatif, sehingga peluang terjadinya kesalahan penentuan posisi sudut sangat besar, terutama pada saat terjadi distorsi pulsa atau saat suplai daya hilang. Sensor rotary encoder tipe EP50S8-1024-2F-P-24 dikopel dengan poros motor untuk membaca sudut aktual yang kemudian dijadikan sebagai umpan balik eksternal. Rotary encoder yang menggambarkan position sudut actual dari of AC servo motor menghasilkan digital code 10-bit yang kemudian dikonversi menjadi data desimal dengan rentang 0-1023 menggunakan sebuah mikrokontroler Arduino Nano V3. Data umpan balik yang diterima oleh mikrokontroler Arduino digunakan untuk menyesuaikan posisi atau sudut dari putaran poros motor servo AC. Hasil penelitian menunjukkan bahwa pada kendali sudut motor servo AC terdapat osilasi pada semua variasi frekuensi atau kecepatan yang diberikan dengan standar deviasi 1,62º pada 1 kHz, 1,92º pada 5 kHz, 2,29º pada 10 kHz, dan 19,01º pada 50 kHz. Walaupun demikian, nilai rata-rata posisi sudut putaran motor tetap dapat mengikuti referensi yang diberikan oleh potensiometer.
Three-axis flexible tube sensor with LSTM-based force prediction for alignment of electric vehicle charging ports Saputra, Hendri Maja; Pahrurrozi, Ahmad; Baskoro, Catur Hilman Adritya Haryo Bhakti; Nor, Nur Safwati Mohd; Ismail, Nanang; Rijanto, Estiko; Yazid, Edwar; Zain, Mohd Zarhamdy Md; Darus, Intan Zaurah Mat
Journal of Mechatronics, Electrical Power, and Vehicular Technology Vol 15, No 2 (2024)
Publisher : National Research and Innovation Agency

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/j.mev.2024.1104

Abstract

This paper introduces a novel three-axis flexible tube sensor designed for force measurement in electric vehicle (EV) charging port alignment, utilizing long short-term memory (LSTM) networks. The research aims to develop and validate a flexible and accurate sensor system capable of predicting multi-axis forces during alignment. The sensor integrates a magnetic sensor at the center of a flexible tube to capture three-dimensional (3-D) magnetic field variations corresponding to force changes. Fabricated using thermoplastic polyurethane (TPU) via 3-D printing technology, the sensor leverages machine learning to predict force values along the , , and  axes ( , , ). Finite element method (FEM) analysis was conducted to assess the deflection characteristics of the flexible tube under various force conditions. Experimental results demonstrate that integrating LSTM significantly enhances the accuracy of force prediction, achieving an R² score exceeding 97 % for all axes, with mean squared error (MSE) values of 0.2819 for the -axis, 0.3567 for the -axis, and 2.8086 for the -axis. The sensor is capable of measuring forces up to 30 N without exceeding its elastic limits. These findings highlight the sensor’s potential for improving alignment accuracy and reliability in automated EV charging systems.
Dimensional Consistency Analysis in High Speed 3D Printing Ramadhan, Doni Fajar; Sodiq, Fajar; Saputra, Hendri Maja; Putra, Mohammad Alexin
TURBO [Tulisan Riset Berbasis Online] Vol 14, No 1 (2025): TURBO : Jurnal Program Studi Teknik Mesin
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v14i1.3795

Abstract

3D printing technology has been widely applied in various industries, including manufacturing, healthcare, automotive, aerospace, and others. High 3D printing speeds, such as 1200 mm/s, offer the potential to significantly accelerate the production process. However, increasing this speed also presents challenges related to the quality and dimensional consistency of the printed parts. Therefore, understanding how each parameter interacts and affects the printing results is key to optimizing high-speed 3D printing processes. This research focuses on the dimensional accuracy of 3D printed objects. The method used involves printing 5 cube samples measuring 20mm x 20mm x20 mm with a 10 mm through all hole using Acrylonitrile Butadiene Styrene (ABS) Highspeed and  Polylactic Acid (PLA) Highspeed materials at a maximum print speed of 1200 mm/s. After the printing process, the dimensions of each sample are carefully measured using a vernier caliper at three different points.  PLA material tends to have a larger deviation than ABS, especially in the circle diameter parameter with a deviation percentage of 5.88%, while ABS is 5.02%. Based on the results overall the deviation of length, width, height, and hole diameter dimensions in both materials is not significant for general applications, but the deviation in hole diameter shows a higher value than other dimensions.
Algoritma Kalibrasi untuk Modul Tekanan pada Alat Uji Triaxial Digital Jamaludin, Jamaludin; Catur Hilman A.H.B. Baskoro; Hendri Maja Saputra
MACHINERY Jurnal Teknologi Terapan Vol. 3 No. 2 (2022): Machinery: Jurnal Teknologi Terapan
Publisher : Politeknik Negeri Sriwijaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5281/zenodo.6857229

Abstract

The calibration algorithm for the pressure module in the triaxial digital test equipment is discussed in this paper. In the previous version of the pressure module design, pressure transducer calibration is performed by inserting the sample transducer reading values ​​in a constant variabel placed on the flash program which results in a re-download process performed every calibration. So this study aims to improve the deficiencies with the solution of making a program algorithm for the pressure module used in the calibration process with direct interaction with the computer through serial monitor on the usb communication port. The study was conducted in stages and focused on coding and testing by conducting direct tests on the pressure module and making improvements to the design of the evaluation results. The algorithm is made to function properly and the accuracy value of pressure module readings at 0.12 kg / cm2 = 8.33%, 0.24 kg / cm2 = 4.17% and 0.30 kg / cm2 = 0.00%.
ANALISIS SUBSISTEM RAMP UNTUK MENAIKI TANGGA PADA MOBIL ROBOT LIPI VERSI 1 (MOROLIPI V1) Saputra, Hendri Maja
AUSTENIT Vol. 12 No. 1 (2020): AUSTENIT: April 2020
Publisher : Politeknik Negeri Sriwijaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Paper ini membahas secara rinci analisis sistem menaiki tangga (ramp) pada prototipe mobil robot penjinak bom versi 1 (morolipi v1). Analisis perlu dilakukan agar secara ilmiah dapat dibuktikan bahwa robot berfungsi sesuai dengan yang didesain. Analisis menggunakan pendekatan kinematika klasik untuk mendapatkan gaya dan momen yang bekerja pada mekanisme penggerak saat menaiki tangga. Berdasarkan analisis melalui simulasi dan eksperimen yang dilakukan maka dapat disimpulkan bahwa desain mobil robot dapat terbukti dapat bekerja dengan baik untuk ramp mobil robot menaiki tangga dengan kemiringan maksimal 42 derajat. Momen paling besar ketika menaiki tangga di sudut kemiringan 30 derajat dengan koefisien gesek 0,9. 
KOMUNIKASI DUA ARAH MODUL PENGENDALI MOTOR ALAT TRIAXIAL DIGITAL Saputra, Hendri Maja; Saputra, Ivan Heru; A.H.B.Baskoro, Catur Hilman
AUSTENIT Vol. 13 No. 2 (2021): AUSTENIT: Oktober 2021
Publisher : Politeknik Negeri Sriwijaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

This study aims to apply two-way communication module for motor controller on digital triaxial test equipment. In the triaxial digital test equipment, the speed and direction of up / down motors in the previous version is still manually controlled by pressing the push button on the control panel. In this research is done digitalize all process at control panel, so that all activity of control tool can be done in front of computer. The communication between the computer and the digital triaxial test device uses a serial communication directly connected to the motor controller module, where the computer sends only characters that will be processed by the microcontroller. The microcontroller translates characters sent, processed, and gives commands to be forwarded to displays and motors. Testing is done directly using Gerlink Triaxial application on computer. Based on some test results obtained that the character sent by the computer can move and change the speed of the motor, and rearrange the loadcell readings on triaxial test equipment. The data rate sent each character is 1.04 milliseconds each.
Position Control of 1-DOF High-Precision Rotary Table using Adaptive Neuro-Fuzzy Inference System (ANFIS) Controller Saputra, Hendri Maja; Nurhakim, Abdurrahman; Utomo, Sapdo
EMITTER International Journal of Engineering Technology Vol 7 No 2 (2019)
Publisher : Politeknik Elektronika Negeri Surabaya (PENS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24003/emitter.v7i2.399

Abstract

Research of position control of 1-DOF high-precision rotary table using adaptive Neuro-Fuzzy inference system (ANFIS) controller has been done. In the closed-loop system without a controller, the response was oscillating and pounding caused by inertial torque. It because a rotary table receives a considerable load. Based on this, the ANFIS controller is needed to eliminate oscillations and compensate for the inertia. The result shows that there was no oscillation or overshoot with the steady-state error value of 2.27% for the reference angle of 45°, valued at 0.10% reference angle of 180°, and valued at 0% reference angle of 360°. The result proves that ANFIS controllers can eliminate oscillations with and compensate for inertia.
Co-Authors A.A. Ketut Agung Cahyawan W A.H.B.Baskoro, Catur Hilman Abdul Hapid Adi Santoso Aditya Sukma Nugraha Agus Hartanto Agus Hartanto Ahmad Fudholi Ahmad Rajani Ahmad Rajani Anwar Muqorobin Anwar Muqorobin Arif Santoso Arif Santoso Baskoro, Catur Hilman Adritya Haryo Bhakti Catur Hilman A.H.B. Baskoro Dalmasius Ganjar Subagio Dalmasius Ganjar Subagio Dalmasius Ganjar Subagio Dalmasius Ganjar Subagio Dalmasius Ganjar Subagjo Darus, Intan Zaurah Mat Edwar Yazid Eka Putera Estiko Rijanto Estiko Rijanto Estiko Rijanto Estiko Rijanto Estiko Rijanto Fajar Sodiq, Fajar Jamaludin . Jamhari Jamhari Kadek Heri Sanjaya Kadek Heri Sanjaya Lukni Maulana Midriem Mirdanies Midriem Mirdanies Midriem Mirdanies Nanang Ismail Nor, Nur Safwati Mohd Nurhakim, Abdurrahman Pahrurrozi, Ahmad Putera, Eka Putra, Mohammad Alexin Rahmayanti, Rifa Rajani, Ahmad Ramadhan, Doni Fajar Riastus Nayanti Ridwan Arief Subekti Ridwan Arief Subekti Ridwan Arief Subekti Ridwan Arief Subekti Rizqi Andry Ardiansyah Rizqi Andry Ardiansyah Roni Permana Saputra Roni Permana Saputra Ruchimat, Ruchimat Sanjaya, Kadek Heri Saputra, Ivan Heru Sukma Aditya Totok Agung Pambudi Utomo, Sapdo Utomo, Sapdo Vikita Windarwati Vita Susanti Vita Susanti Vita Susanti Zain, Mohd Zarhamdy Md Zainal Abidin Zainal Abidin