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Flight Safety Improvement on Surion through Circuit Design and Software Reformation of Data Acquisition Unit

수리온 데이터획득/처리장치 동작회로 및 소프트웨어 개선을 통한 비행안전성 향상

  • Jun, Byung-kyu (3rd Sacheon team, Defense Agency of Technology and Quality) ;
  • Jeong, Sang-gyu (3rd Sacheon team, Defense Agency of Technology and Quality) ;
  • Kim, Young-mok (3rd Sacheon team, Defense Agency of Technology and Quality) ;
  • Chang, In-ki (3rd Sacheon team, Defense Agency of Technology and Quality)
  • 전병규 (국방기술품질원 사천3팀) ;
  • 정상규 (국방기술품질원 사천3팀) ;
  • 김영목 (국방기술품질원 사천3팀) ;
  • 장인기 (국방기술품질원 사천3팀)
  • Received : 2015.09.26
  • Accepted : 2015.10.21
  • Published : 2015.10.30

Abstract

The data acquisition unit, signal acquiring and processing equipment, processes and provides major data of an aircraft such as engine system, power train system, hydraulic system, etc. However, it had lots of failure related to the system during production test flight, and it is necessary to fix them perfectly as soon as possible because of the significance of the equipment. In this paper, it contains failure classification and analysis for each defect element to improve whole software as well as electrical circuit. Particularly, utilizing Fault Injection Method based interworking test, more efficient improvement activity was performed for not only equipment level but also aircraft level, and as a result, it is achieved that considerable betterment of Surion quality and flight safety.

데이터획득/처리장치는 수리온의 2차양산 항공기에 최초 적용하기 위해 개발한 항공기 구성품으로서 엔진, 동력전달, 유압 등 항공기의 주요 계통의 정보를 처리, 타 계통 및 조종사에게 제공한다. 그러나 항공기 생산시험비행 중 해당 구성품과 관련된 여러 결함이 발생하였으며, 장비의 중요성을 고려할 때 긴급하고 확실한 개선이 요구되었다. 본 논문에서는 항공기에서 발생한 결함을 유형별로 분석하고 그 결과를 바탕으로 동작회로와 소프트웨어 전반에 걸쳐 원인분석 및 개선형상을 검증한 결과를 기술하였다. 특히 결함주입기법 기반의 항공기 연동시험을 통해 구성품 장비단위 뿐 아니라 체계단위에서 효과적으로 개선형상을 검증하였으며 이를 통해 수리온 비행안전성 및 품질 신뢰성을 크게 향상시킬 수 있었다.

Keywords

References

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