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All Journal Indonesian Journal of Electrical Engineering and Computer Science Jurnal Rekayasa elektrika
Rahardiyanti, Kandi
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Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering

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Performance of rocket data communication system using wire rope isolator on sounding rocket RX Rahardiyanti, Kandi; Laksono, Shandi Prio; Hakim, Khaula Nurul; Nugroho, Yuniarto Wimbo; Adi, Andreas Prasetya; Salman, Salman; Kurdianto, Kurdianto
Indonesian Journal of Electrical Engineering and Computer Science Vol 38, No 2: May 2025
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijeecs.v38.i2.pp783-793

Abstract

The rocket experiment (RX) ballistic rocket requires a reliable data communication system capable of withstanding intense vibrations and shocks during flight. This study investigates the application of wire rope isolators (WRI) to damper mechanical disturbances and protect the rocket's communication system. Installation of WRI position and direction in this experiment with compression position. A series of vibration tests were conducted using 4 WRI installed in the rocket’s 30 kg data communication compartment, vibration test results frequency between 4 Hz and 1500 Hz with acceleration of 8.37 g to 20.37 g, higher "g" readings on the test object sensor compared to vibration machine readings are usually caused by phenomena such as resonance, differences in dynamic response, non-linear behavior, sensor placement location, and swing effects when the vibration machine oscillates. This is a natural mechanical response to external vibrations during testing. While the results of flight tests rocket RX has an acceleration of 8 g to 9.3 g. The results showed that the WRI dampers are effective in protecting the data communication system and ensuring the uninterrupted transmission of flight data to the ground control station (GCS).
Dual-mode Antenna Tracking System for Rocket Launch Applications Fakhri, Muh.; Rahmat, Mirza Zulfikar; Pascawati, Anita; Harsono, Sonny Dwi; Nugroho, Yuniarto Wimbo; Rahardiyanti, Kandi; Rohmah, Nurul Fahrizatul
Jurnal Rekayasa Elektrika Vol 20, No 2 (2024)
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17529/jre.v20i2.35043

Abstract

Rocket launches are complex events that require tracking antennas to maintain a communication link. This study introduces a hybrid tracking strategy that combines manual and program modes by utilizing a predetermined trajectory of the rocket. Automatic switching between tracking modes ensures ongoing monitoring, even during unexpected trajectory changes with the monopulse approach. The dual parabolic antenna arrangement enables this switching. The system estimates the monopulse ratio from the signal strength of each antenna, allowing automatic program tracking to shift to manual mode when reception concerns arise. Performance evaluations included manual, programmable, and dual-mode tests. The system responded to human input and automatically aligned the antenna with slight elevation errors during the initial phase. Adjusting the initial elevation reduced the error. The mode transition was examined by measuring the antenna radiation patterns and monopulse ratio. The systems performance was evaluated in rocket launches, with the rocket trajectory input into the graphical user interface. The antenna exhibited an azimuthal movement of up to 10 , and the ratio fluctuation values remained within the antennas field of view. After 8.8 seconds, the mode switched from program to manual, indicating that the functioning of the systems functioning was stable.
Co-Authors Andreas Prasetya Adi Fakhri, Muh. Harsono, Sonny Dwi Khaula Nurul Hakim Kurdianto Kurdianto, Kurdianto Laksono, Shandi Prio Nugroho, Yuniarto Wimbo Pascawati, Anita Rahmat, Mirza Zulfikar Rohmah, Nurul Fahrizatul Salman Salman