신뢰성 물리학 기반 수중무기체계 연동처리보드의 신뢰성 향상 사례 연구

차종한¹^{, *} ; 임선호² ; 이창민³ ; 박경덕¹ ; 신다미⁴ ; 이광민⁴

1LIG넥스원 미래전장IPS연구소 수석연구원
2LIG넥스원 해양기술개발단 수석연구원
3LIG넥스원 C5ISR기계융합연구소 수석연구원
4LIG넥스원 미래전장IPS연구소 연구원

Case Study on Reliability Improvement of IP Boards in Underwater Weapon Systems Base on Reliability Physics

Jong-Han Cha¹^{, *} ; Seonho Lim² ; Chang-Min Lee³ ; Kyoung-Deok Park¹ ; Dami Shin⁴ ; Gwang-Min Lee⁴

1Chief research engineer, Future Warfare IPS R&D, LIG Nex1
2Chief research engineer, Maritime Sensor Systems, LIG Nex1
3Chief research engineer, Mechanical R&D, LIG Nex1
4Research engineer, Future Warfare IPS R&D, LIG Nex1

Correspondence to: ^*Jong-Han Cha Future Warfare IPS R&D, LIG Nex1 21, Pangyo-ro 255beon-gil, Bundang-gu, Seongnam-si, Gyeonggi-do, Republic of Korea Tel: +82-31-326-9370 Fax: +82-31-288-9123 E-mail: jonghan.cha@lignex1.com

초록

본 논문에서는 열, 충격, 진동 프로파일을 활용 신뢰성물리학 방법론을 적용하여 고장물리 측면에서의 신뢰성을 예측하고, 그 결과로 도출된 취약 부위의 설계변경을 통한 신뢰성 향상 사례를 제시하였다. 설계 단계에서 설계자료를 활용한 시뮬레이션을 통해 신뢰성 예측을 확인할 수 있어 보드 제작 전에 신뢰성이 향상된 보드를 제작하므로 추후 환경시험이나 신뢰성 시험 시 리스크를 최소화하고 가용도를 높일 수 있다.

Abstract

This study presents a case of reliability improvement through design changes in identified vulnerable areas, by applying Physics of Failure methodology using thermal, shock, and vibration profiles to predict reliability from a failure physics perspective. Reliability prediction is validated through simulations utilizing design data during the design phase, allowing for the production of boards with enhanced reliability before manufacturing. This approach minimizes risks during subsequent environmental or reliability testing and increases availability.

Keywords:

Reliability Physics, Physics of Failure, Reliability Improvement, Design for Reliability

키워드:

신뢰성물리학, 고장물리학, 신뢰성 향상, 신뢰성 설계

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