ANALISIS KEKUATAN FITTING PADA BACKUP STRUKTUR LIFTER FLIR PESAWAT BOEING 737-200 SURVEILLANCE TNI AU MENGGUNAKAN SOFTWARE MSC PATRAN/NASTRAN

YUSUF SETIADI, RIYAN (2019) ANALISIS KEKUATAN FITTING PADA BACKUP STRUKTUR LIFTER FLIR PESAWAT BOEING 737-200 SURVEILLANCE TNI AU MENGGUNAKAN SOFTWARE MSC PATRAN/NASTRAN. Skripsi thesis, Institut Teknologi Dirgantara Adisutjipto.

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Abstract

There must be a supervision activity to prevent illegal actions in the ocean. Supervision can be in the form of patrols with aircraft. Aircraft BOEING 737-200 Surveillance is a special aircraft ordered by TNI AU to BOEING for surveillance. FLIR (Forward Looking Infrared) cameras can help air patrols by detecting the temperature of an object that is not visible to the radar. So it is necessary to modify the structure in the installation of FLIR cameras on Boeing 737-200 Surveillance. The total mass of the FLIR camera and Lifter is 250 kg, so it is necessary to do structural analysis for safety. The object of research is the fitting of the Lifter FLIR backup structure. The data used are aircraft specification data, geometry data from .STP CATIA files, and allowable stress data that are appropriate for the material used. All data obtained from PT.DI. The position of the FLIR camera extension occurs after the aircraft is in cruising conditions, so the loading data is obtained from the calculation of the drag force and the weight at the cruising height (36000 ft) plus 3 different heights (41000 ft, 25000 ft and 15000 ft) for comparison. All data is then imported and processed in the MSC Patran / Nastran program. After the analysis results came out, it was known that the highest stress value at each height was 125 N/mm2 (41000 ft), 154 N/mm2 (36000 ft), 207 N/mm2 (25000 ft), 326 N/mm2 (8000 ft). The results of the calculation of the Margin of Safety are 1,7 (41,000 ft), 1,2 (36000 ft), 0,6 (25000 ft), 0,04 (8000 ft).

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