Author:
Li Renqing,Li Jin,Song Yan,Wang Kun
Abstract
AbstractFiber Optic Gyroscope (FOG) is a kind of rotation sensor with high reliability and long lifetime. Accelerated life test is hard to obtain enough failure data for reliability evaluation. By analyzing failure mechanism, the sensitive environment stress and performance degradation parameters of FOG are determined. Then an accelerated degradation test (ADT) is undertaken to obtain reliability information. Wiener process is introduced to describe performance degradation path and the Arrhenius model is selected as accelerated model. Considering epistemic uncertainty in monitoring, an interval linear regression model for ADT is introduced. Then the reliability of FOG at operating environment stress is evaluated. By discussing the reliability assessment results, the methods in this paper are feasible for FOG.
Publisher
Springer Nature Singapore
Reference18 articles.
1. Chao DH, Ma J, Li XY (2009) Research on the reliability of SLD through accelerated life testing. In: 2009 8th international conference on reliability, maintainability and safety, pp 1263–1267
2. Ma X, Li M, Zhang SN et al (2011) The application status of accelerated test technology in gyroscopes life assessment. In: 2011 prognostics and system health management conference, pp 1–4
3. Zhang B (2008) Research on accelerated life test of the key component of fiber optical gyroscope. Beijing, Beijing University of 24
4. Chen SY, Zhao JJ, Ma J (2008) Feasibility of accelerated degradation test for FOG. J Chin Inertial Technol 16(5):623–626
5. Wang W, Zheng X, Meng XT (2012) Step-stress accelerated degradation technique with two accelerating stresses for fiber-optic gyroscope. Infrared Laser Eng 41(6):1007–2276