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All Journal Jurnal Elemen Conference SENATIK STT Adisutjipto Yogyakarta Angkasa: Jurnal Ilmiah Bidang Teknologi Compiler KACANEGARA Jurnal Pengabdian pada Masyarakat Jurnal Penamas Adi Buana Abdimas Galuh: Jurnal Pengabdian Kepada Masyarakat Reswara: Jurnal Pengabdian Kepada Masyarakat Southeast Asian Mathematics Education Journal Jurnal Anugerah: Jurnal Pengabdian Kepada Masyarakat Bidang Keguruan dan Ilmu Pendidikan JUTECH : Journal Education and Technology Vortex Jurnal Pengabdian Masyarakat Intimas (Jurnal INTIMAS): Inovasi Teknologi Informasi Dan Komputer Untuk Masyarakat Jurnal Peradaban Masyarakat (JPM) Journal of International Conference Proceedings Jurnal Manajemen dan Teknologi Rekayasa Joong-Ki Joong-Ki
Rahmawati, Fajar Khanif
Institut Teknologi Dirgantara Adisutjipto
Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Mechanical Engineering Nursing Public Health Social Sciences Other

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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.
ANALISIS KEGAGALAN NOSE WHEEL STEERING SYSTEM PADA PESAWAT BOEING DENGAN MENGGUNAKAN METODE FAILURE MODE AND EFFECT ANALISYS Anggawaty, Dwi; Mulyani, Sri; Rahmawati, Fajar Khanif
Vortex Vol 3, No 1 (2022)
Publisher : Institut Teknologi Dirgantara Adisutjipto

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (493.292 KB) | DOI: 10.28989/vortex.v3i1.1179

Abstract

Aircfrat use nose wheel steering system when landing, take off and landing. In the research discuses the problem of nose wheel steering system B737 – 800 to minimize problems ini nose wheel steering system. The stage of this research are to study the work system of nose wheel steering. Then look for the cause of the problem using the FMEA analysis method. This research is based on data from AFML (aircraft Flight and Manual Log) of the B737 – 800 Aircraft from January 2020 to Junu 2021 at Lion Airline. The results showed that the problem of nose wheel steering system in the failure mode analysis process using FMEA method data in the highest RPN ( Risk priority Number) value is 175 with the case steering collar dan torQ link need lubrication and case Tire pressure that caused by the lack of lubrication on the component and different pressure in tire. Then it is necessary to do inspection before flight.
Analisis penambahan Unit Aviobridge untuk meningkatkan efisiensi dan efektifitas apron di Bandar Udara Internasional Yogyakarta Pramiswari, Faradiba Ghandi; Gunawan, Gunawan; Rahmawati, Fajar Khanif
Vortex Vol 5, No 1 (2024)
Publisher : Institut Teknologi Dirgantara Adisutjipto

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28989/vortex.v5i1.2037

Abstract

Bandara Internasional Yogyakarta berada di Kabupaten Kulon Progo, Daerah Istimewa Yogyakarta, Indonesia. Aviobridge merupakan jembatan antara pesawat dengan terminal bandara yang memudahkan pergerakan penumpang dan awak kabin, bertujuan untuk meningkatkan kenyamanan penumpang dan memudahkan aktivitas operasional petugas. Karena tingginya permintaan penggunaan aviobridge oleh personel ground handling, petugas pengendali pergerakan apron menghadapi tantangan, terutama pada jam sibuk. Oleh karena itu, perlu dilakukan penambahan unit aviobridge. Penambahan unit aviobridge ini juga sebagai upaya meningkatkan efisiensi dan efektivitas area apron. Metodologi yang digunakan adalah metode peramalan regresi linier. Berdasarkan hasil peramalan kedatangan pesawat, jumlah kedatangan pesawat selama periode 2023-2032 diperkirakan mengalami peningkatan sebagai berikut: 12814, 15543, 18271, 21000, 23729, 26458, 29186, 31915, 34644 dan 37372. Selain itu, pada jam sibuk, jumlah kedatangan pesawat berkisar antara 8 hingga 14. Penggunaan aviobridge dapat meningkatkan efisiensi ground time pesawat dari 0% menjadi 30% dan meningkatkan efektivitas penggunaan parking stand dari 100% menjadi 142%. Dengan analisis keuangan menunjukkan uang masuk sebesar Rp. 1.131.101.055 per tahun dan cash out sebesar Rp. 159.218.070 per tahun, estimasi payback period pengadaan aviobridge adalah 6,8 tahun, dengan internal rate of return sebesar 13,79%.
CASE ANALYSIS ON FLIGHT CONTROL SYSTEM SIKORSKY S76 C++ FAILURE FROM YAW CONTROL ASPECT Rahmawati, Fajar Khanif; Lukito, Indro; Baihaqi, M Imam
Vortex Vol 3, No 1 (2022)
Publisher : Institut Teknologi Dirgantara Adisutjipto

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (495.451 KB) | DOI: 10.28989/vortex.v3i1.1155

Abstract

Flight Control is a system that functions as a helicopter control center. Failure that occurs in flight control would certainly result inconvenience of the pilot in operating the helicopter, even the movement of the helicopter can out of control causing incident or accident. The continuity of the helicopter operation is affected by the maintenance system applied. One of mode moving system helicopter is yaw control, that could control the nose helicopter to move right and left. Fault Tree Diagram could described  analytical technique, whereby an undesired state of the system is specified (usually a state that is critical from a safety or reliability standpoint). The system then analyzed in the context of its environment and operation to find the solution. Based on the analysis results of failures that occurred in the Sikorsky S76 C ++ helicopter flight control from yaw control aspect in the period of January 2015 to May 2018 with an average use of helicopter’s 2092.05 flight hours, there were 46 failures which caused by yaw control. Based on diagram, there were 4 basic events which caused unschedule maintenance on Sikorsky S76 C ++ helicopter flight control system because of yaw fail control,  so that a replacement or repair was needed for the components that affected to the system failure.
Mapping cognitive load profiles in realistic mathematics education: A study with aerospace engineering students Funny, Rindu Alriavindra; Rahmawati, Fajar Khanif
Jurnal Elemen Vol 11 No 4 (2025): October
Publisher : Universitas Hamzanwadi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29408/jel.v11i4.32104

Abstract

Although Realistic Mathematics Education (RME) promotes deeper conceptual learning, empirical evidence mapping different types of cognitive loads in university engineering mathematics is limited. This mixed-methods study profiled intrinsic, extraneous, and germane cognitive loads among 76 first-year aeronautical engineering students working on RME-based task, a contextualized double integral problems modelling aircraft wing surface. We measured load components with a CLT questionnaire that adapted from Leppink et.al and mental effort with the Paas scale, then triangulated findings with student reflections and observations. Correlations showed intrinsic and germane load related to students’ mental effort, while extraneous load was minimal, suggesting clear task design. Multiple regression analysis clarified that the germane load was the main unique predictor of mental effort, whereas intrinsic complexity and extraneous factors contributed little uniquely. Qualitative data confirmed that students used strategies such as breaking tasks into sub-steps, activating prior knowledge, and peer explanation to manage effort. We propose an RME–CLT alignment framework that scaffolds intrinsic difficulty, minimizes extraneous processing, and cultivates germane engagement through reflective context-rich tasks. The findings also inform the design of cognitively efficient engineering-mathematics curricula. Thus, it offers practical guidance for designing cognitively efficient engineering mathematics instruction and recommends future studies using longitudinal and real-time measures.
Bibliometric Analysis of UAV/Drone Maintenance Publications Santoso, Prasidananto Nur; Poerwanto, Eko; Pinandhita, Lazuardy Rahendra; Zabidi, Yasrin; Mauidzoh, Uyuunul; Rahmawati, Fajar Khanif
JUMANTARA: Jurnal Manajemen dan Teknologi Rekayasa Vol 5, No 1 (2026)
Publisher : Institut Teknologi Dirgantara Adisutjipto

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28989/jumantara.v5i1.2898

Abstract

This study highlights the lack of comprehensive studies on UAV (Unmanned Aerial Vehicle) and drone maintenance, despite numerous bibliometric studies conducted in other fields. This knowledge gap on this crucial aspect of UAV technology necessitates an in-depth analysis of the existing literature. The primary objective of this study is to conduct a bibliometric analysis of publications related to UAV/drone maintenance to map the literature, identify trends, and highlight contributions from different countries, universities, and authors. The analysis was conducted by collecting metadata from 30 years of academic publications (1994–2024) indexed in databases such as Scopus, and using VOSViewer to visualize the bibliometric network. Expected outcomes include identification of the most influential publications, authors, and journals, mapping research trends, and insights into collaboration opportunities between researchers and institutions. These findings are expected to guide future research by providing research topic recommendations to address existing literature gaps. Overall, this study offers a comprehensive overview that enriches the literature and encourages significant innovation in UAV/drone maintenance.
PENGEMBANGAN MULTIMEDIA SIMULASI 2 DIMENSI PEMBELAJARAN GARIS LURUS BERUBAH BERATURAN PADA PESAWAT TERBANG Retnowati, Nurcahyani Dewi; Rahmawati, Fajar Khanif; Nugraheny, Dwi; Subarjo, Abdul Haris; Honggowibowo, Anton Setiawan
JUTECH : Journal Education and Technology Vol 6, No 2 (2025): JUTECH DESEMBER
Publisher : STKIP Persada Khatulistiwa Sintang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31932/jutech.v6i2.5591

Abstract

Mahasiswa sering mengalami kesulitan dalam memahami konsep Gerak Lurus Berubah Beraturan (GLBB), khususnya pada aspek matematis dan visualisasi gerak dalam pembelajaran Fisika. Penelitian ini bertujuan untuk mengembangkan media pembelajaran berupa simulasi dua dimensi pada materi GLBB dengan konteks gerak pesawat terbang serta menguji kelayakannya sebagai media pembelajaran. Metode yang digunakan adalah Multimedia Development Life Cycle (MDLC) yang meliputi tahap perancangan, pembuatan, dan pengujian media. Pengujian dilakukan melalui blackbox testing untuk memastikan fungsionalitas sistem dan uji pengguna menggunakan kuesioner terhadap 30 responden. Hasil penelitian menunjukkan bahwa simulasi dapat berjalan dengan baik dan mudah digunakan, dengan tingkat kelayakan sebesar 89,33% yang termasuk dalam kategori sangat layak. Dengan demikian, simulasi dua dimensi yang dikembangkan efektif sebagai media pendukung pembelajaran Fisika untuk membantu mahasiswa memahami konsep GLBB secara lebih visual, interaktif, dan kontekstual.
Analysis of The Implementation of The Concept of Higher Airspace Operations in Indonesia Limbong, Marchel Jeriko Togu; Medianto, Rully; Edi, Prasetyo; Gunawan, Gunawan; 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.v6i2.3654

Abstract

The advancement of aviation technology and growing airspace demand have introduced the Higher Airspace Operation (HAO) concept, which manages airspace above FL550 (55,000 feet). Globally, regions like the United States and the European Union are developing regulatory and technological systems to integrate HAO into existing air traffic management. In contrast, Indonesia’s readiness remains limited due to the lack of specific regulations, infrastructure, and surveillance capabilities. This study assesses Indonesia’s preparedness to adopt HAO through a Systematic Literature Review (SLR) and expert interviews. Findings indicate the need for adaptive policies aligned with technological progress, improved communication, navigation, and surveillance systems, and comprehensive legal frameworks to support emerging airspace vehicles such as High-Altitude Platform Systems (HAPS), suborbital aircraft, and reentry vehicles. The research also proposes a dynamic, collaborative operational model suited to Indonesia’s unique geographical conditions and institutional environment.
Analysis Pneumatic System of The Causes of Engine Bleed Trip on Boeing 737-900 ER Aircraft Using the Fault Tree Analysis (FTA) Method Kurniawan, Muhammad Hadi; Adiputra, Bangga Dirgantara; Rahmawati, Fajar Khanif; Mulyani, Sri; Prattiwi, Elisabeth Anna
Vortex Vol 6, No 1 (2025)
Publisher : Institut Teknologi Dirgantara Adisutjipto

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28989/vortex.v6i1.3105

Abstract

The Engine Bleed Air system is one of the primary systems in an aircraft and Its components include the Pressure Regulating Shutoff Valve (PRSOV), Bleed Air Regulator (BAR), High Stage Valve (HSV), High Stage Regulator (HSR), Precooler Control Valve (PCCV), and PCCV sensors 390 and 450. Any malfunction in these components can directly impact aircraft safety and flight operations. This research analyzes the performance failures of the system in regulating the temperature and pressure distributed by the bleed air system, particularly focusing on engine bleed trips. This study aims to determine the percentage of necessary component replacements in the air bleed engine system using the Fault Tree Analysis (FTA) method. Primary data is collected from aircraft maintenance databases and interviews. The percentage of main component replacements needed are: thermostat sensor 390 (42.3%), Precooler Control Valve (19.2%), Pressure Regulating Shutoff Valve (11.5%), and Bleed Air Regulator (7.7%). The remaining components account for the other percentages.
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 abdul haris subarjo, abdul haris Agung Prakoso Anggawaty, Dwi Anisafitri, Berni Anton Setiawan Honggowibowo Arfandi Achmad Arwin Datumaya Wahyudi Sumari Baihaqi, M Imam Bambang Sudibya, Bambang Bangga Dirgantara Adiputra Benedictus Mardwianta, Benedictus Budiono, Cyrilus Sukaca Denny Dermawan Deny Kusumaningrum, Maria Asumpta Dwi Hartini Dwi Nugraheny, Dwi Eko Poerwanto Eli Kumolosari Esa Rengganis Sulliyartha Faturrahman, Mochamad Fikri Freddy Kurniawan Gayatri, Tasya Gunawan Gunawan Gunawan Gunawan Hanawa, Riski Riswandi Islami, Alfi Daffa Istyawan Priyahapsara Kater, Jimi Kris Hariyanto Kurniawan, Muhammad Hadi Lasmadi, Lasmadi Leanny, Shania Intan Limbong, Marchel Jeriko Togu Lukito, Indro Maria Asumpta deny Kusumaningrum Maria Asumpta Deny Kusumaningrum, Maria Asumpta Deny Muhammad Abdul Ghofur Nurcahyani Dewi Retnowati Nurdin, Riani Perkasa, Syahmi Pinandhita, Lazuardy Rahendra Prakoso, Suyudi Imam Pramiswari, Faradiba Ghandi Prasetyo Edi, Prasetyo Prattiwi, Elisabeth Anna Priyahapsara, Istyawan Priyahapsara Putra, Ananda Adhitya Rakahila, Raihan Aventa Rakha, Humaid Iswahyu Hafizh Rastra Arif Pradana Rindu Alriavindra Funny Rindu Alriavindrafunny Rully Medianto, Rully Santoso, Djarot Wahyu Santoso, Prasidananto Nur Setiawan, Paulus Sri Mulyani Sri Mulyani Sukmabuana, Nengah Batara Uyuunul Mauidzoh Wati, Denisa Trisma Wibowo, Suryo Ari Yasrin Zabidi, Yasrin Yenni Astuti, Yenni Zalukhu, Wellman