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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

Author-ID : 893282

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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RELIABILITY ANALYSIS OF HELICOPTER BLADE ROTOR PLAY BELL 412 USING NORMAL DISTRIBUTION METHOD Rastra Arif Pradana; Kris Hariyanto; Fajar Khanif Rahmawati
Vortex Vol 1, No 2 (2020)
Publisher : Institut Teknologi Dirgantara Adisutjipto

At the beginning of operation, a main rotor blade on helicopter is certainly in the best condition. When it gets older, the main rotor blade condition will decrease because of the presence of bent, material fatigue and human error during operation. Based on the background, it is necessary to identify the level of reliability of main rotor blade on the Bell 412 helicopter using the normal distribution method. The research data were the age of components of main rotor blade on Bell 412 helicopter during 27 years.Based on the analysis of calculation of the reliability level, employing the normal distribution method and using Microsoft Excel, the reliability value (R) of all serial numbers of Bell 412 helicopter main rotor blade was 99%, which indicates the reliability of the Bell 412 helicopter main rotor blade is very good.

ANALISIS PERAWATAN PERENCANAAN PHASE 25 DI BATAM AERO TECHNIC (BAT) SM-SUB Rakahila, Raihan Aventa; Rahmawati, Fajar Khanif
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.v4i2.1665

Airplanes as a means of transportation are increasingly becoming the flagship of the community. Along with the many flights today, aircraft are not spared also in carrying out maintenance. Punctuality and efficiency of work in maintenance are the main factors so that the aircraft can operate again on time, so that maintenance requires optimizing the number of mechanics according to the workload. While in fact there are still many treatments that are carried out not in accordance with the time that has been determined. This delay is very undesirable by both parties, because it will be detrimental in terms of time and cost. Therefore, careful aircraft maintenance planning and structured work lines must be carried out so that maintenance can be carried out as desired. The method used is the Critical Path Method (CPM), which is a network critical path method that uses linear time balance. Each activity can be completed faster than normal time by bypassing the activity for a certain fee. In the Critical Path Method (CPM) method, forward calculations and backward calculations are carried out so as to get the results of the critical path (slack). From the results of the analysis, it was found that the value of man hours needed was 89.52 man hours, while the value of man hours needed based on the company's calculation results was 97.43 man hours. There are differences in the results of man hours obtained by the author with from the company.

REKOMENDASI PERAWATAN KOMPONEN AIR CYCLE MACHINE (ACM) PADA PESAWAT B737-900ER Anisafitri, Berni; Rahmawati, Fajar Khanif; Mulyani, Sri
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.v4i1.1532

Analysis with the Weibull distribution method shows that the right treatment recommendations for treating air cycle machine (ACM) in the form of category preventive maintenancetime directed (TD), due to category preventive maintenanceTime Directed (TD) is a category of preventive maintenance that can be carried out if the time variable of a component or system is known and directly aims to prevent damage.

Analisis efisiensi manhours pada pemeliharaan structural interity program Pesawat C-130 Hercules menggunakan Metode Critical Path Budiono, Cyrilus Sukaca; Sukmabuana, Nengah Batara; Rahmawati, Fajar Khanif; Wibowo, Suryo Ari
Vortex Vol 5, No 2 (2024)
Publisher : Institut Teknologi Dirgantara Adisutjipto

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28989/vortex.v5i2.2365

Usia jam terbang dan kalender menentukan batasan waktu pesawat C-130 Hercules melakukan pemeliharaan tingkat berat seperti pemeliharaan SIP, WFDI, dan CWBR. Dari kondisi pemeliharaan tingkat berat tersebut menyebabkan terjadinya penumpukkan perawatan yang dimana terjadinya penumpukkan perawatan dengan puncaknya yaitu pada tahun 2023 sebanyak 11 pesawat masih dalam melakukan perawatan berat. Sehingga perlu adanya metode untuk mengurangi penumpukkan pemeliharaan berat tersebut. Pada tugas akhir ini yaitu menganalisis untuk mengetahui nilai total kebutuhan manhours dalam pemeliharaan SIP menggunakan metode Critical Path Method (CPM) dan mengetahui nilai persentase efisiensi perbandingan. Dari hasil analisis dengan menggunakan metode Critical Path Method (CPM) didapati total manhours yaitu sebesar 12180 manhours dengan nilai persentase efisiensi perbandingan sebesar 32,63%.

ANALISIS KEGAGALAN LUBRICATION SYSTEM AUXILIARY POWER UNIT (APU) PESAWAT Perkasa, Syahmi; Rahmawati, Fajar Khanif
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.v4i2.1693

The Boeing aircraft is the newest variant of the Boeing 737 aircraft. During operation, various problems will certainly be found. One of the problems that occurs is the failure of the APU Lubrication System. The right type of maintenance is needed to minimize or prevent failure. The method used is the Failure Mode and Effect Analysis (FMEA) and Risk Priority Number (RPN) methods. The first step is to identify failures in each component. each failure mode and failure effect that occurs in each component is translated into the FMEA table. The conclusion obtained is identification of failures that occur in the APU lubrication system, namely there are 22 failures in the APU lubrication system, 11 cases of Oil clog failure, 7 cases of Oil leak failure, 4 cases of Oil Temperatue failure. Failure cases that have a high critical failure modes are oil clog with an RPN value of 288 and oil leak with an RPN value of 256, while moderate critical failure modes is oil temperature with an RPN value of 168.

Failure probability of F-100 Pratt & Whitney-220E turbofan engine on F-16 fighting falcon aircraft Hanawa, Riski Riswandi; Rahmawati, Fajar Khanif; Prattiwi, Elisabeth Anna; Deny Kusumaningrum, Maria Asumpta; Kumolosari, Eli
Vortex Vol 5, No 2 (2024)
Publisher : Institut Teknologi Dirgantara Adisutjipto

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28989/vortex.v5i2.2251

Engine failure is a condition where the engine operates outside normal conditions. One of the abnormal conditions that occurs can be caused by a fault that occurs in each engine module. Engine module is one of the components on an aircraft that functions for supports the aircraft to fly and controls all engine operations, wether on the ground and during flight. The problem can occur in each engine module at any time causing engine failure. Therefore, it is necessary to carry out further analysis to determine the cause of the failure that occurred, as well as to implement appropriate mitigation measures. The method used is the Fault Tree Analysis (FTA) method, which is a method for identifying risks that contribute to failure and determining failure probability. From the analysis using the qualitative fault tree analysis method 71 events were obtained with 35 basic events. Meanwhile, the quantitative analysis produces a cumulative probability failure of 0.747. The probability value has almost reached 1, therefore preventive maintenance has to be carried out to prevent functional failure.

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

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

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

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

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.

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

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