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http://dx.doi.org/10.5762/KAIS.2019.20.8.181

A Study on the Quality Improvement of Electrical Master Box in Aircraft Vibration Environment  

Seo, Youngjin (Defense Agency for Technology and Quality)
Lee, Yoonwoo (Defense Agency for Technology and Quality)
Jang, Minwook (Defense Agency for Technology and Quality)
Jo, Jihyung (Youngpoong Electronics. co., Ltd.)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.20, no.8, 2019 , pp. 181-189 More about this Journal
Abstract
An aircraft power distribution device distributes and controls the power generated by the generator and provides overcurrent protection. There are many defect phenomena that make AC power distribution impossible during flight, which poses a problem in because some electronic equipment cannot be operated. We describe a process of deriving the root cause of defects by using vibration testing equipment to simulate the vibration conditions during aircraft flight, which result in defects. The results show that the cause of the defect is internal wiring damage caused by the vibration of the contactor of the AC power distribution device. Therefore, the shape of the contactor was improved to solve this problem. We also improved the test procedure by performing defect detection tests using vibration testing equipment to detect a faulty contactor. As a result of the improvements, a component certification test and flight test proved that the defect phenomena of the AC electrical master box were improved.
Keywords
Contactor; Power Distribution; Rotary-Wing Aircraft; Vibration; Wire Chaffing;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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