Reliability Assessment Based on Performance Parameter for Micro-Gyro

Abstract:

For high-reliability and long-lifetime product, it is difficult to assess the reliability with traditional accelerated life test that record only time to failure. Aiming to solve the problem of the previously, a reliability test and assessment method forecasting the life of samples based on degradation parameter was proposed. According to the working characteristic, the key parameter measuring performance degradation was selected. Based on statistical analysis methods, parameter degradation was designed and parameter degradation model was build. Combined with practical application background, the failure threshold was set and reliability assessment resultwas obtained. The method is applied to assessing reliability of micro gyroscope. The application shows that the method can achieve effective assessment, which can be used as similar products that are difficult to obtain the failure life data in a short time.

• Periodical: Advanced Materials Research (Volume 1037)
• Pages: 197-200
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1037.197
• Online since: October 2014
• Authors: Li Xia Yu, Li Qin*, Meng Mei Wang
• Keywords: Micro-Gyroscope, Parameter Degradation, Reliability Assessment

References

[1] Ying SHI, Luis A. ESCOBAR, William Q. MEEKER. Accelerated Destructive Degradation Test Planning [J]. Technometrics, 2009, Vol. 51, No. 1, 1-13.

DOI: 10.1198/tech.2009.0001

[2] Chao Daihong , et al. Reliability assessment of FOGs used for satellite from degradation data [J]. Infrared and Laser Engineering, 2011, 40(9): 1763-1767.

[3] Deng Aimin. Research on Reliability Technology of High-reliability and Long-lifetime Products[D]. National University of Defense Technology, 2006, 4.

[4] MA Jing , et al. Accelerated storage life evaluation of FOG based on drift Brownian movement[J]. Journal of Chinese Internal Technolog, 2010, 18(6): 756-760.