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All Journal MEDIA KOMUNIKASI TEKNIK SIPIL Angkasa: Jurnal Ilmiah Bidang Teknologi Compiler Jurnal Penamas Adi Buana Vortex
Bangga Dirgantara Adiputra
Institut Teknologi Dirgantara Adisutjipto
Aerospace Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Education Energy Materials Science & Nanotechnology Mechanical Engineering

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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.
Analisis Pengaruh Penambahan Inclined Serration Flat-Plate Pada Trailing Edge Propeller Terhadap Tingkat Kebisingan dan Nilai Thrust Firliandini Pralinda Sundari; Elisabeth Anna Prattiwi; Bangga Dirgantara Adiputra; Eli Kumolosari; Okto Dinaryanto
Angkasa: Jurnal Ilmiah Bidang Teknologi Vol 18, No 2 (2026): Mei
Publisher : Institut Teknologi Dirgantara Adisutjipto

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28989/angkasa.v18i1.3428

Abstract

The increasing use of drones in Indonesia potentially causes noise pollution due to propeller-generated sound. One widely studied approach to reducing propeller noise is trailing edge modification. Noda et al. (2019) showed that serrated gurney flaps can reduce noise at low RPM with minimal impact on thrust, although their effectiveness decreases at higher RPM. One factor that has not been considered is the serration’s installation angle. This study investigates the effect of adding an inclined serration flat-plate on the noise and thrust of a propeller. Numerical simulations were conducted using the frozen rotor method with the k-ω SST turbulence model and the Ffwocs-William and Hawking acoustic analogy. The results show that the serration increased thrust up to 41.707% at 10,000 RPM. In contrast, the trend of Sound Pressure Level (SPL) towards frequency generally increased, leading to a rise in Overall SPL (OASPL) up to 3.497 dB at 10,000 RPM
Estimasi Volume Penumpang Pesawat Udara di Bandar Udara Internasional Adisutjipto Menggunakan Model Gravity Gunawan Gunawan; Uyuunul Mauidzoh; Bangga Dirgantara Adiputra; Okto Dinaryanto
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 31, Nomor 1 (2025)
Publisher : Department of Civil Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/mkts.v31i1.72157

Abstract

Demand forecasting is used by airlines to predict the travel behavior of potential passengers. Accurate forecasting is critical to the overall success of an airline. An important element in forecasting is passenger volume estimation. The goal is to predict the number of passengers expected between two cities for a given time interval. Based on this forecast, airlines can make decisions about new routes or additional flights on existing routes. Starting January 2020, all flights to Yogyakarta have landed at Yogyakarta International Airport (YIA) except for flights using propeller aircraft such as ATR which can still use Adisutjipto International Airport (JOG). Adisutjipto International Airport currently only serves 3 routes, namely Yogyakarta (JOG) - Jakarta (HLP) RT., Yogyakarta (JOG) - Bandung (BDO) RT., and Yogyakarta (JOG) - Surabaya (SUB) RT.. The opening of Adisutjipto International Airport to propeller aircraft makes it possible to increase flight frequencies or new routes. For that, it is necessary to estimate the volume of aircraft passengers at Adisutjipto International Airport using the gravity model. The most accurate model is Model 5, where the attraction force is separated into the number of residents of the origin and destination zones and the GRDP of the origin and destination zones, as well as the distance impedance factor and ticket rates are also separated.
Co-Authors Aditiya, Irvan Agus Basukesti Agus Basukesti, Agus Agus Rohmanto Ariska Hidayat bahrun bahrun Dwi Hartini Eli Kumolosari Elisabeth Anna Prattiwi Firliandini Pralinda Sundari Gunawan Gunawan Gunawan Gunawan Hidayat, Ariska Hilmy, Muhammad Nur Istyawan Priyahapsara Kater, Jimi Kris Hariyanto, Kris Kurniawan, Muhammad Hadi Lazuardy Rahendra Pinandhita Maria Asumpta deny Kusumaningrum Marni Astuti Muhammad Irfan Muhammad Irfan Nurcahyani Dewi Retnowati Nurcahyani Dewi Retnowati Nurdin, Riani NURUL ANWAR Okto Dinaryanto Pangkey, Calvin Delano Immanuel Pinandhita, Lazuardy Rahendra Prattiwi, Elisabeth Anna Rahmawati, Fajar Khanif Rianto Rianto Rully Medianto Sahuburua, Stevward Norenssio Sri Mulyani Sri Mulyani Suhanto Suhanto Uyuunul Mauidzoh