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All Journal International Journal of Power Electronics and Drive Systems (IJPEDS) TESLA: Jurnal Teknik Elektro
Eko Syamsuddin Hasrito
BPPT
Control & Systems Engineering Electrical & Electronics Engineering Engineering

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Penerapan Antena Mikrostrip di Pesawat Udara Nir Awak (PUNA) Sriti Guno, Yomi; Hasrito, Eko Syamsuddin
TESLA: Jurnal Teknik Elektro Vol 18, No 2 (2016): TESLA: Jurnal Teknik Elektro
Publisher : Universitas Tarumanagara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24912/tesla.v18i2.167

Abstract

Unmanned aerial vehicle (UAV) in Indonesia is commonly known as Pesawat Udara Nir Awak (PUNA). Data link from aerial observation, required transmitter mounted on the PUNA and components of the constituent is antenna. Antenna must have a small size and light in weight, because the limitation due to the payload capacity. Currently used in the PUNA, is a dipole antenna which still has some weakness, including its susceptibility to the wind (drag effect). So, designing a microstrip antenna will improve the signal transmission performance from PUNA to Ground Control Station (GCS). The microstrip antenna is chosen because this type of antenna has low profile drag, light weight, easy for fabrication and of course low cost. After an antenna design optimization, the antenna placement should be noted to ensure a good transmission. In this research, the microstrip antenna will be operated at 2.35 GHz for video monitoring and the antenna itself will be placed inside the fuselage. Simulated co-site interference will be performed at the operational frequency of data link antenna, which is 900 MHz, with the placement in the upper surface (canopy) of the PUNA. The measurements in the anechoic chamber, showed that the internal fuselage microstrip antenna worked at the frequency of 2.35 GHz with a bandwidth 60 MHz (2.31 GHz up to 2.37 GHz), while the return loss measured at 2.35 GHz is -23.85 dB and the gain of antenna is 3.81 dBi.
Rancang Bangun Sistem Sensor pada Model Fuze Proximity untuk Mendukung Rudal Nasional Hasrito, Eko Syamsuddin; Kaharjito, Frandi H
TESLA: Jurnal Teknik Elektro Vol 18, No 2 (2016): TESLA: Jurnal Teknik Elektro
Publisher : Universitas Tarumanagara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24912/tesla.v18i2.274

Abstract

Fuze proximity berfungsi sebagai pemicu awal berlangsungnya peledakan, pada jarak tertentu dari objek-objek yang bergerak dengan semakin cepat, seperti pesawat tempur, kapal perang, peluru kendali. Fuze ini merupakan komponen utama dari sebuah munisi yang saat ini 100% masih diimpor dari negara lain, sehingga rawan diembargo dan tidak lagi memiliki aspek kerahasiaan karena jumlahnya selalu dapat diketahui oleh negara pembuat atau pengirimnya. Selain itu, fuze juga tidak boleh mudah rusak dan harus tahan lama disimpan, tahan terhadap cuaca dan lingkungan sekeliling, serta tahan diperlakukan kasar (rugged) saat dipindahkan, sebelum munisi diluncurkan. Dengan persyaratan yang sedemikian ketat, maka tidak semua pabrik senjata dan pabrik munisi mampu membuat sendiri fuzenya. Dengan kondisi tersebut, ancaman embargo dari negara-negara produsen fuze setiap saat dapat dikenakan kepada negara pengimpornya, bila ada perselisihan. Untuk itu, fuze pada munisi kaliber besar (MKB), maupun rudal perlu dikembangkan sehingga mampu mendukung industri pertahanan nasional untuk lebih mandiri. Pada tulisan ini dibahas mengenai hasil-hasil pengembangan sistem sensor pada model fuze proximity di BPP Teknologi.
Performance of high-speed train traction motor system in acceleration – cruise mode: theoretical analysis Widodo, Tri; Kamar, Syamsul; Luthfiyah, Hilda; Hasrito, Eko Syamsuddin; Hidayat, Sofwan; Lestari, Meiyanne; Basuki, Heru
International Journal of Power Electronics and Drive Systems (IJPEDS) Vol 17, No 1: March 2026
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijpeds.v17.i1.pp238-249

Abstract

This research is based on the development of a 480-kW traction motor for high-speed train (HST) applications. The performance of the traction motor system will be reviewed theoretically with the focus of the research on operational modes, namely acceleration mode and cruise mode. Motor performance will be reviewed more in-depth related to the development of mathematical models for torque function of time, power function of time and efficiency function of speed. The data used in this study are real data of 480 kW traction motor specifications and synthetic data of HST operations. The results of the traction motor performance analysis show that in the operational conditions of acceleration mode, the traction motor requires power and torque at the beginning reaching 4,838.13 Nm to overcome inertia, friction, aerodynamic force and increase speed. In cruise mode, the speed tends to be stable, so the power and torque decrease to 1,133.24 Nm. The results of the traction motor performance theoretically show that the traction motor can work well for variations in speed and track profile.
Co-Authors Basuki, Heru Guno, Yomi Hidayat, Sofwan Kaharjito, Frandi H Kamar, Syamsul Lestari, Meiyanne Luthfiyah, Hilda Tri Widodo