ANALISIS WATER INGRESS PADA STRUCTURE KOMPOSIT RUDDER AIRBUS A330 PK-GPE DENGAN METODE NON-DESTRUCTIVE TEST

NUGRAHA, ONGKI ARIYA (2021) ANALISIS WATER INGRESS PADA STRUCTURE KOMPOSIT RUDDER AIRBUS A330 PK-GPE DENGAN METODE NON-DESTRUCTIVE TEST. S1 thesis, Universitas Mercu Buana Jakarta.

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Abstract

In aircraft maintenance, aircraft structure inspection is important considering that many aircraft accidents are caused by damage to aircraft structure. In 1999, the F / A 18 aircraft rudder was separated from the aircraft due to long-term water ingress between the Aluminum shell and honeycomb core. Water ingress causes the epoxy adhesive to separate the two surfaces and thus causes rudder failure in the vertical stabilizer. Research has been carried out on the composite aircraft of the Airbus A330 rudder using the NDT method Thermographic to detect the location of water ingress in the rudder area. This analysis aims to determine the limitation of the Rudder area indicated by water ingress according to the Structure Repair Manual (SRM). The Thermographic Method uses the Thermacam Infrared Camera tool by firing directly at the Rudder Surface. Through a Thermographic device, it looks on the monitor area that contains dark water. The darker the color, the more water content is trapped in the composite. The limitation of this method is that it can only be used to search for water ingress. For the results of the analysis of measurements in area 1 of 450 mm². In area 2 the area is 450 mm². In area 3 the area is 2100 mm². So in conclusion, according to the SRM limitation it is mentioned that the area of the three areas falls into the category of no repair necessary because the area under 3,000 mm². Keywords: NDT, Thermographic, Water Ingress, Composite, Maintenance. Dalam perawatan pesawat, inspeksi structure pesawat merupakan hal penting mengingat banyak kecelakaan pesawat disebabkan oleh kerusakan structure pesawat. Pada tahun 1999, rudder pesawat F / A 18 terpisah dari pesawat karena terjadi water ingress dalam jangka panjang antara kulit Aluminium dan honeycomb core. Water ingress menyebabkan perekat epoksi memisahkan kedua permukaan dan dengan demikian menyebabkan kegagalan rudder pada stabilizer vertikal. Telah dilakukan penelitian pada komposit rudder pesawat Airbus A330 dengan menggunakan metode NDT yaitu Thermographic untuk mendeteksi lokasi water ingress pada area rudder. Analisis ini bertujuan untuk Menentukan limitasi area Rudder yang terindikasi water ingress sesuai Structure Repair Manual (SRM). Metode Thermographic mengunakan alat Thermacam Infrared Camera dengan cara menembakkan langsung ke Rudder Surface. Melalui alat Thermographic, terlihat di monitor area yang mengandung air berwarna gelap. Semakin gelap warna, semakin banyak kandungan air yang terjebak di composite Keterbatasan dari metode ini yaitu hanya dapat digunakan untuk mencari water ingress saja. Untuk hasil analisis pengukuran di area 1 sebesar 450 mm². Pada area 2 luas areanya sebesar 450 mm². Pada area 3 luas areanya sebesar 2100 mm². Jadi kesimpulannya, menurut SRM limitasi disebutkan bahwa luas ketiga area masuk kategori no repair necessary karena luas areanya dibawah 3.000 mm². Kata kunci : NDT, Thermographic, Water Ingress, Composite, Perawatan.

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