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All Journal SCIENCE TECH: Jurnal Ilmiah Ilmu Pengetahuan dan Teknologi Conference SENATIK STT Adisutjipto Yogyakarta Jurnal Engine: Energi, Manufaktur, dan Material Quantum Teknika Vortex Journal of International Conference Proceedings
Istyawan Priyahapsara
Institut Teknologi Dirgantara Adisutjipto
Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mechanical Engineering

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IDENTIFIKASI KEGAGALAN PADA KOMPONEN PITOT PROBE BOEING 737-900ER Cristhina, Cristhina; Mulyani, Sri; Priyahapsara, Istyawan
Vortex Vol 4, No 1 (2023)
Publisher : Institut Teknologi Dirgantara Adisutjipto

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28989/vortex.v4i1.1533

Abstract

Based on Boeing 737-900ER unscheduled removal data of pitot probe 0851HT-1 January, 2020 to November, 2021 found 14 removal for pitot probe with one of the defect is “pitot light on”. This indicate that there is a problem with the component and can disrupt the pilot and delay the aircraft. Knowing the result of failure identification and the type of failure be the aim of this research. Analysis using Failure Mode and Effect Analysis used to identify failure modes, causes and effects of failure, severity, occurrence, and detection ranking so that the risk priority number obtained. Based on the FMEA Worksheet, there are 8 failure modes that occur on the pitot probe with the highest Risk Priority Number is 126 on mode “IAS AND ALT DISAGREE”.
ANALISIS FAKTOR DELAMINASI PADA MATERIAL SERAT GELAS TERHADAP PARAMETER DRILLING Priyahapsara, Istyawan
Vortex Vol 3, No 2 (2022)
Publisher : Institut Teknologi Dirgantara Adisutjipto

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (596.425 KB) | DOI: 10.28989/vortex.v3i2.1237

Abstract

Delaminasi adalah sebuah ukuran dari area rusak sekitar lubang (Abdullah, 2019). Delaminasi tinggi bisa mengakibatkan kekuatan struktur yang berkurang. Dalam penelitian ini, akan dilakukan drilling dengan parameter permesinan yang sesuai dalam kaedah permesinan, selanjutnya dilakukan observasi citra makro terhadap lubang yang dihasilkan. Pengujian dilakukan pada material serat gelas 5 layer, dengan pahat drilling diameter 6.3 mm. Parameter drilling menggunakan variasi putaran mesin 1860 rpm, 2920 rpm, 4540 rpm, dan kecepatan pemakanan vertikal (plunging) 0.038 m/menit, 0.067m/menit. Didapatkan hasil nilai terendah delaminasi didapat pada spindle speed 1860 RPM dan plunging rate 0.038 rev/min sebesar 1.24. Nilai tertinggi delaminasi didapat pada spindle speed 4540 RPM dan plunging speed 0.076 rev/min
PRELIMINARY DESIGN OF UNMANNED AIRLAND (PUNA) Priyahapsara, Istyawan; Mulyani, Sri
Vortex Vol 3, No 1 (2022)
Publisher : Institut Teknologi Dirgantara Adisutjipto

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (576.875 KB) | DOI: 10.28989/vortex.v3i1.1186

Abstract

The development of the number of vehicles exceeding the capacity of highways in urban areas causes frequent traffic jams and increases the risk of accidents. This often happens during year-end holidays and Eid holidays. So it is very necessary to monitor traffic density during the annual holiday period to reduce the number of fatalities due to traffic accidents. Monitoring traffic density using helicopters is expensive because of the high fuel consumption and maintenance. So we need a new alternative, namely using Unmanned Aircraft (PUNA) because it is easy to operate and cheap to maintain. So it is very necessary to design PUNA for traffic density monitoring missions. Aircraft for this purpose are classified as small because the payload, namely the camera, only weighs 2 kg. Study obtained the following results: fuselas/body length 1.94 m, wingspan 1.46 m, airfoil NACA 2412. engine OS MAX-40FX, engine located in the nose, take-off Gross Weight 6.11 kg, material weight 321.09 grams, use an Oblique Camera type camera, the camera weight is 2 kg, and the camera position is 3 ft from the nose.
GROB G 120 TP-A AIRCRAFT BETA SYSTEM ANALYSIS USING FTA (FAULT TREE ANALYSIS) METHOD Rahmawati, Fajar Khanif; Priyahapsara, Istyawan; Funny, Rindu Alriavindra; Wati, Denisa Trisma
Vortex Vol 4, No 2 (2023)
Publisher : Institut Teknologi Dirgantara Adisutjipto

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28989/vortex.v4i2.1652

Abstract

Grob G 120 TP - A beta system aircraft is a system that regulates the size of the angle on the propeller. 42 failures occurred in the beta system from August 2016 to May 2021, resulting in the beta system having to be replaced even before reaching its 2500 flight hour age limit. Using the FTA (Fault Tree Analysis) method, which begins with defining the failure and determining the boundary conditions of the beta system, describing the fault tree model, identifying the minimum cut set from the fault tree, performing a qualitative analysis of the faults tree, and doing a quantitative analysis of the fault tree, it can be seen that the failure that often occurs in the beta system of the Grob G 120 TP-A aircraft is the occurrence of high oil temperature over 84 ℃, the qualitative analysis found 12 causes of failure on the beta system, and based on quantitative analysis obtained probability the occurrence of beta system failure is 0.76363.
KAJIAN POTENSI PEMBANGKIT LISTRIK TENAGA SURYA DI BANDARA SULTAN ISKANDAR MUDA BANDA ACEH priyahapsara, istyawan; Pasha, Muhammad Anka
Vortex Vol 4, No 2 (2023)
Publisher : Institut Teknologi Dirgantara Adisutjipto

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28989/vortex.v4i2.1698

Abstract

Sources of electrical energy in Indonesia still use a lot of conversion results from fossil energy such as coal, gas and oil. This fossil energy source is getting less and less and the price keeps going up and contributes a lot of carbon gas emissions that are released into the air, renewable energy, such as solar energy, wind, hydropower, and biomass are alternative energy sources that are environmentally friendly. which needs to be further developed in the future.The author's analysis will take into account the effect of implementing solar panels on several obstacles to the failure of the electricity supply from PLN at Sultan Iskandar Muda International Airport. The purpose of implementing solar panels is to overcome the failure of PLN electricity supply, save electricity costs and reduce carbon gas emissions to the environment in a step to support the concept of an airport with green energy or Eco- Airport, in the calculation method using component analysis, the effect of temperature and also from an economic perspective on the initial investment of the project
Analysis of Vibration Characteristics of EFT-E610P Drone Using Modal Analysis Method Kamila, Amalia; Prattiwi, Elisabeth Anna; Setiawan, Paulus; Hartini, Dwi; Priyahapsara, Istyawan; Astuti, Yenni
Vortex Vol 6, No 2 (2025)
Publisher : Institut Teknologi Dirgantara Adisutjipto

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28989/vortex.v6i2.3679

Abstract

This research examines the vibration characteristics of the EFT-E610P type agricultural drone through flight tests and modal analysis. It aims to identify and analyze vibration properties like amplitude deviation, period, frequency, and waveform in the drone's mechanical system to ensure flight stability and safety. The study collects real-time vibration data using accelerometer sensors, processes it using Fourier transform, and interprets the main vibration features. Results show that the vibration parameters remain within a reasonable range corresponding to the drone’s natural structural properties, with no signs of instability or harmful oscillations. Amplitude fluctuations and dominant frequency shifts indicate the drone’s dynamic response to speed and structural changes but remain stable. The study concludes that the EFT-E610P drone exhibits normal vibration behavior during tests, with no negative impact on flight performance or safety, supporting its effective operation.
BENDING STRENGTH OF HYBRID COMPOSITE OF GLASS AND NATURAL FIBER PHINEAGE LEAVES Latuconsina, Muhammad Fachnoor; Priyahapsara, Istyawan
Vortex Vol 2, No 2 (2021)
Publisher : Institut Teknologi Dirgantara Adisutjipto

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (440.252 KB) | DOI: 10.28989/vortex.v2i2.1012

Abstract

The development of composite fibers has developed very much, and to reduce the environmental impact, composite fibers use natural fiber alternatives. The development of composite fibers has developed very much, and to reduce the environmental impact, composite fibers use natural fiber alternatives. One of the natural fibers that are commonly used is natural fiber from pineapple leaves, where natural fiber from ananas leaves is still very minimal in its commercial use and is only considered as waste
Analysis Problem of Air Bleed Maintenance Message Using Fault Tree Analysis (FTA) Method Kater, Jimi; Adiputra, Bangga Dirgantara; Mulyani, Sri; Priyahapsara, Istyawan; Rahmawati, Fajar Khanif; Prattiwi, Elisabeth Anna
Vortex Vol 6, No 2 (2025)
Publisher : Institut Teknologi Dirgantara Adisutjipto

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28989/vortex.v6i2.3639

Abstract

The Airbus A320 has two main engines and an Auxiliary Power Unit (APU) that generate high-temperature, high-pressure bleed air used for cabin cooling, anti-icing, and pressurization. Two temperature sensors, Fire Loop A and Fire Loop B, monitor the bleed air distribution line for hot air leaks. An Air Bleed Maintenance Message signals a malfunction in these fire protection loops and requires quick maintenance to avoid system failure. Leaks, especially near the wing and fuel tank, pose significant hazards. This study uses Fault Tree Analysis (FTA) to find the root causes of this message. The main causes identified are damaged interconnecting cables, failure in the Bleed Monitoring Computer (BMC), and faults in Fire Loop A or B. The FTA diagram helps technicians trace each component's role in the failure, aiding efficient inspection and maintenance. This method aims to boost system reliability and improve flight safety.
Co-Authors Bahrudin Yusuf Habibie Bangga Dirgantara Adiputra Cristhina, Cristhina Dwi Hartini Faturrahman, Mochamad Fikri Gunawan Gunawan Izza Rizky Assihhaly Kamila, Amalia Kater, Jimi Latuconsina, Muhammad Fachnoor Lukito, Indro Meo, Arnoldus Ale Pasha, Muhammad Anka Prattiwi, Elisabeth Anna Rahmawati, Fajar Khanif Rindu Alriavindra Funny Setiawan, Paulus Sri Mulyani Sri Mulyani Sri Mulyani Wati, Denisa Trisma Yenni Astuti, Yenni