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Journal : Jurnal Teknologi Kedirgantaraan (JTK)

Analisis Impact Landing Skid Drone Agrikultur Dengan Variasi Ground Contur muhammad fadli; Muhammad Hadi Widanto; Syarifah Fairuza
Jurnal Teknologi Kedirgantaraan Vol 9 No 1 (2024): Jurnal Teknologi Kedirgantaraan
Publisher : FTK UNSURYA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35894/jtk.v9i1.104

Abstract

UAV (Unmanned Aerial Vehicle) memiliki bentuk, ukuran, dan model yang bervariasi. Salah satu komponen penting dalam struktur UAV adalah landing skid. Landing skid berfungsi menahan beban pesawat pada saat di darat serta menyerap energi akibat hentakan yang terjadi ketika proses pendaratan. Landing skid harus menanggung beban tekan (compressive load),. Penelitian ini bertujuan mengetahui pengaruh pemilihan material dan ketebalan terhadap kekuatan landing skid. Pada penelitian ini terdapat 4 komponen dalam mensimulasikan impact skid landing yaitu: plat body, skid landing, mounting, ground contur. Hasil simulasi dari respon dinamik gaya terhadap waktu dari simulasi skid landing terhadap ground contur dengan variasi ketebalan 2 mm, 4 mm, dan 6 mm terhadap tanah yang bergelombang dan tanah datar. Dari hasil simulasi menunjukkan semakin tebal material maka nilai gaya maksimum juga semakin tinggi. Dari hasil simulasi menunjukkan material Carbon Fiber Reinforced Polymer (CFRP) menghasilkan defleksi yang lebih kecil dibandingkan dengan material alumunium dimana pada kecepatan jatuh.
Estimating The Necessity For Brake Spare Parts at PT XYZ Using The Monte Carlo Method NUR HIDAYAH NINGSIH, Nur Hidayah Ningsih; Mufti Arifin; Muhammad Hadi Widanto
Jurnal Teknologi Kedirgantaraan Vol 10 No 1 (2025): Jurnal Teknologi Kedirgantaraan
Publisher : FTK UNSURYA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35894/jtk.v10i1.231

Abstract

Brake is a crucial component of an aircraft. The availability of brake parts is a challenge for the company, affecting operational performance and customer satisfaction. The analysis at PT XYZ aims to predict the need for brake parts using historical replacement data and Monte Carlo Models. Brake replacement data is random because it is not known when it should be replaced. The results showed that brake replacement in 2022 and 2023 was 886. By using linear regression, the estimated need for brake spare parts in 2024 is 258,4301 for 117 aircraft with three types used A320, B737-900ER, and B737-9 MAX. The number of brake replacements for 2 years is 886 while the Monte Carlo simulation results amount to 922. Comparison of Airlines obtained prediction results, ABC is 389, BCD is 425 and CDE is 135. Part Number comparison obtained predictions, 2-1740-1 is 479, C20225510 is 318, and C20633000 is 160. Comparison for 6 months in 2024 obtained a difference of 7%. Comparison of Airlines obtained a difference of ABC is 17%, BCD is 25%, and CDE is 7%. While the Part Number Comparison obtained a difference of 2-1740-1 is 32%, C20225510 is 12%, and C20633000 is 2%.
Analysis of The Removal and Installation Stages of The RR Trent 700 Engine on an Airbus A330 Aircraft Using The Critical Path Method Husaini, Fahdli Zulfikar; Mufti Arifin; Muhammad Hadi Widanto
Jurnal Teknologi Kedirgantaraan Vol 10 No 2 (2025): Jurnal Teknologi Kedirgantaraan
Publisher : FTK UNSURYA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35894/jtk.v10i2.245

Abstract

The lifting of the Restriction of Community Activities (PPKM) in January 2023 was the beginning of the aviation industry in Indonesia starting to rise marked by the emergence of new Maintenance Repair and Operations (MRO). Limited hangar space at MRO is a challenge in scheduling aircraft maintenance, setting the order of task cards that have been submitted by the airline and must be done in the maintenance project will be an illustration of how long this project will be done. MP item number 7122410504 contains Detailed Inspection of Aft Engine Mount Fail-Safe link is a maintenance job that can be done after the removal of Engine. The engine removal and installation process often takes more time and effort, potentially causing delays in the overall maintenance time. The purpose of this research is to make efficiency in the removal and installation process of the RR Trent 700 engine using the critical path method. The critical path method in analysing the stages of work in the maintenance process aims to identify and optimise resource allocation, so that maintenance time can be minimised and overall efficiency can be improved. The results showed that the application of the critical path method in the stages of engine removal and installation work resulted in a time efficiency of about 1,655 Hours so that the delay in work on the critical path became the main factor affecting the total duration of the engine removal and installation process.
Analisis Kerusakan Pelat Komposit Akibat Beban Low Velocity Impact Terhadap Variasi Energi Impak Dengan Menggunakan Elemet Split Widanto, Muhammad Hadi; Amat Chaeroni; Surya, Eggy
Jurnal Teknologi Kedirgantaraan Vol 9 No 1 (2024): Jurnal Teknologi Kedirgantaraan
Publisher : FTK UNSURYA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35894/jtk.v9i1.103

Abstract

Komposit merupakan material yang paling banyak digunakan pada struktur pesawat terbang. Hal ini karena material komposit memiliki kekuatan struktur yang tinggi dan berat yang ringan. Namun komposit mempunyai kelemahan yaitu tidak tahan terhadap beban impak karena sifatnya yang getas. Beban impak dapat terjadi akibat human error pada saat dilakukan perawatan akibat benda jatuh atau karena tumbukan benda asing lainnya. Pada penelitian ini dilakukan simulasi impak struktur komposit untuk mengetahui ketahan komposit dengan variasi energi impak. Pada simulasi impak menggunakan metode elemen hingga dengan memodelkan intralaminar dan interlaminar menggunakan metode kegagalan hashin dan cohesive zone model. Penelitian terhadap pengaruh element split yang dimodelkan pada pelat komposit menjadi penelitian utama. Dari hasil menunjukkan pengaruh element split terhadap respon dinamik dan kerusakan delaminasi dapat memberikan hasil dengan korelasi yang lebih baik terhadap hasil eksperimen.