A Study on Accelerated Life Testing Model and Design

Kim, Daeyu; Hur, Jangwook; Jeon, Buil

doi:2018.21.6.894

J. KIMS Technol > Volume 21(6); 2018 > Article

Research Paper

Journal of the Korea Institute of Military Science and Technology 2018;21(6):894-903.
DOI: https://doi.org/10.9766/KIMST.2018.21.6.894

A Study on Accelerated Life Testing Model and Design

Daeyu Kim, Jangwook Hur, Buil Jeon

¹Department of Mechanical System Engineering, Kumoh National Institute of Technology
²Development Program Management Division, Korea Aerospace Industries

헬기용 와이퍼 조립체의 가속모델 및 가속수명시험 설계 연구

김대유, 허장욱, 전부일

¹금오공과대학교 기계시스템 공학과
²한국항공우주산업 개발사업관리본부

Abstract

In the case of helicopters, the development of parts technology is rapidly changing, and the complexity is rapidly increasing. Particularly, the surge of various electric and electronic systems is recognized as a problem that is directly related to the safety of the helicopter. Due to these problems, there is a growing interest in reliability evaluation in the face of the problem of confirming and certifying the reliability of parts in the development stage. In this paper, the analysis of the failure mechanism of the wiper system was carried out, and the priority and importance of each failure mode were checked by using the results, and major stress factors were derived and the corresponding acceleration model was selected. Also, the accelerated lifetime test time was calculated according to the life test time, acceleration status and acceleration level of the steady state by using the selected acceleration model and characteristic values.

Key Words: Wiper Assembly, Failure Mode Effect & Analysis, Fault Tree Analysis, Reliability Test, Accelerated Life Test