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http://dx.doi.org/10.5139/JKSAS.2018.46.9.782

DVI cable Improvement for Preventing MFD Abnormal Display of a Rotary-wing Aircraft  

Kim, Young Mok (Defense Agency for Technology and Quality)
Jeong, Sang-Gyu (Defense Agency for Technology and Quality)
Cho, Jae Po (Korea Aerospace Industries)
Choi, Doo-Hyun (Kyungpook National University)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.46, no.9, 2018 , pp. 782-789 More about this Journal
Abstract
Multi-Function Display (MFD) of Korean Utility Helicopter (KUH) displays image information(navigation, flight, topographical and maintenance information) delivered from Mission Computer (MC) during flight operation. The abnormal display of MFD such as flickering phenomenon was identified in the system development. It was solved by improving the shielding performance of the DVI cable and changing the DVI cable installation path at the first mass production. However, it was occurred again when the aircraft was operated for one or two years after delivery. It was also identified in the evaluation process of the derivative helicopters. Therefore, a comprehensive review of the aircraft system level has been performed to solve the problem of MFD malfunction at first and then a design improvement plan was derived by improving the DVI cable. In this paper, the causes of MFD anomalies are analyzed and also the process of design improvement are summarized. The validity of the improvement has been verified through the DVI cable assembly comparison test, SIL/ground/flight test.
Keywords
KUH; MFD; Flickering; MC; DVI cable;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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