DETECTION MODELLING OF AIRPLANE BLACK BOX USING RAY TRACING METHOD IN MAKASSAR STRAIT

• Main Author: Ruth Angie Manurung, Honey
• Format: Final Project
• Language: Indonesia
• Subjects: Teknik (Rekayasa, enjinering dan kegiatan berkaitan)
• Online Access: https://digilib.itb.ac.id/gdl/view/46932
• Institution: Institut Teknologi Bandung

Airplane has a probability to suffer damage or fall off. The causes of damage can beknown by the record of black box which attached in airplane. A black box that submerged underwater can be detetcted by using underwater acoustic principal. There are some methods to modelling underwater acoustic propagation, one of them is ray tracing method. One of the program to modelling underwater acoustic propagation with ray tracing method is Bellhop. Modelling using Bellhop also can predict the transmission loss value at the location. Detection modelling of airplane black box in Makassar Strait is divided by 12 two dimensional section of black box (FDR) line location. The calculation result of maximum transmission loss value for the black box is possible to detected is 81.76 dB. From the transmission loss modelling result obtained via BELLHOP, the maximum range from hydrophone to black box in 5 different depth that meet thelimit of maximum transmission loss in every section location can be determined. The maximum range are 7.09 kilometers for 50 meters in depth, 7.52 kilometers for 100 meters in depth, 8.36 kilometers for 300 meters in depth, 8.58 kilometers for 500 meters in depth, and 9.16 kilometers for 1,000 meters in depth. At the analyzed five depth points, it can be concluded that the distance of 7.09 kilometers is the maximum effective distance of the hydrophone from the black box for all location lines in depths of 50, 100, 250, 500, and 1,000 meters.