基于加速退化原理的光纤陀螺性能保持期评估方法研究
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摘要
为评估光纤陀螺在长期贮存条件下的性能保持期,从光纤陀螺自身的特点出发,根据贮存环境的具体要求,详细分析了加速试验过程中试验应力及应力量值的选取,明确了试验样品的分配及具体试验时间估算方式。通过加速退化的手段得到样品的零偏和标度因数等数据,结合可靠性工程领域的成熟方法和理论,采用灰色系统模型和线性退化模型得到外推时间,计算Weibull分布的形状参数和寿命参数,并根据Arrhenius模型对光纤陀螺的性能保持期进行了预测。试验结果表明,采用ASE光源的0.01(°)/h量级的光纤陀螺,其性能保持期可以超过3a。
To evaluate the performance retention period of fiber optic gyroscope(FOG) under the long-term storage conditions, the test stress and value during the accelerated degradation test is analyzed according to the characteristics of FOG, and the specific requirements of the storage environment. The test samples are grouped according to the stress level. The testing time is also effective evaluated. Test data, such as bias and scale factor of FOG by means of accelerated degradation test, is analyzed based on the grey system model and the linear degradation model. The shape parameters and life parameters of the Weibull distribution are calculated. The performance retention period is predicted based on the Arrhenius model. The test results show that the performance retention period of 0.01(°)/h level FOG with the ASE source can exceed 3 years.
To evaluate the performance retention period of fiber optic gyroscope(FOG) under the long-term storage conditions, the test stress and value during the accelerated degradation test is analyzed according to the characteristics of FOG, and the specific requirements of the storage environment. The test samples are grouped according to the stress level. The testing time is also effective evaluated. Test data, such as bias and scale factor of FOG by means of accelerated degradation test, is analyzed based on the grey system model and the linear degradation model. The shape parameters and life parameters of the Weibull distribution are calculated. The performance retention period is predicted based on the Arrhenius model. The test results show that the performance retention period of 0.01(°)/h level FOG with the ASE source can exceed 3 years.
引文
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[15] Weibull W.A statistical distribution function of wide applicability[J].Journal of Applied Mechanics,1951,18(3):293-297.
[2] 林震,姜同敏,程永生,等.阿伦尼斯模型研究[J].电子产品可靠性与环境试验,2005,23(6):12-44.Lin Zhen,Jiang Tongmin,Cheng Yongsheng,et al.Study on Arrhenius relationship[J].Electronic Product Relaibility and Enviromental Testing,2005,23(6):12-44(in Chinese).
[3] 郑辛,吴衍记,于怀勇.光子晶体光纤在光纤陀螺中的应用现状及其关键技术[J].导航定位与授时,2017,4(6):1-8.Zheng Xin,Wu Yanji,Yu Huaiyong.Key technology & application status of the photonic crystal fiber used in fiber optic gyroscope[J].Navigation Positioning & Timing,2017,4(6):1-8(in Chinese).
[4] 吴衍记.高精度光纤陀螺发展现状及对策[J].导航定位与授时,2015,2(4):53-57.Wu Yanji.The current situation and countermea-suresof high precision fiber optic gyro[J].Navigation Positioning & Timing,2015,2(4):53-57(in Chinese).
[5] 蒋超,袁慧铮,张朋.基于Questasim与Matlab/Simulink的光纤陀螺代码验证技术研究[J].导航定位与授时,2015,2(1):57-61.Jiang Chao,Yuan Huizheng,Zhang Peng.Research on cosimulation takes advantage of Questasim and Matlab/Simulink to code verification of FOG[J].Navigation Positioning & Timing,2015,2(1):57-61(in Chinese).
[6] 胡小毛,于浩,尹滦.光纤陀螺惯导稳定平台与旋转调制方法[J].导航定位与授时,2018,5(2):23-28.Hu Xiaomao,Yu Hao,Yin Luan.Triaxial motion isolation and rotation modulation method based on fiber optic gyro inertial navigation system[J].Navigation Positioning & Timing,2018,5(2):23-28(in Chinese).
[7] 袁慧铮,陆俊清,李星善,等.大量程高精度光纤陀螺的设计与实现[J].导航定位与授时,2014,1(3):59-62.Yuan Huizheng,Lu Junqing,Li Xingshan,et al.Design and implementation of high precison I-FOG with wide dynamic range[J].Navigation Positioning & Timing,2014,1(3):59-62(in Chinese).
[8] 孙娜,高枫,姜见龙.光纤陀螺标度因数及零偏温度误差补偿研究[J].导航定位与授时,2017,4(4):92-96.Sun Na,Gao Feng,Jiang Jianlong.Temperature compensation research of the scale factor and bias on fiber optic gyro[J].Navigation Positioning & Timing,2017,4(4):92-96(in Chinese).
[9] 杨志怀,马林,张贵材,等.数字闭环光纤陀螺死区机理研究与抑制[J].导航定位与授时,2017,4(4):97-102.Yang Zhihuai,Ma Lin,Zhang Guicai,et al.Analysis and supression of dead band in digital closed-loop fiber optic gyro[J].Navigation Positioning & Timing,2017,4(4):97-102(in Chinese).
[10] 左文龙,惠菲,于浩,等.高精度光纤陀螺Allan方差零偏不稳定性研究[J].导航定位与授时,2015,2(6):55-58.Zuo Wenlong,Hui Fei,Yu Hao,et al.Research on fiber optic gyroscope Allan variance bias instability[J].Navigation Positioning & Timing,2015,2(6):55-58(in Chinese).
[11] 袁慧铮,陈林华,陆俊清,等.光纤陀螺加速退化试验方法研究[J].导航定位与授时,2015,2(5):63-69.Yuan Huizheng,Chen Linhua,Lu Junqing,et al.Research on accelerated degradation method for fiber optic gyro[J].Navigation Positioning & Timing,2015,2(5):63-69(in Chinese).
[12] 马静,苑丹丹,晁代宏,等.基于漂移布朗运动的光纤陀螺加速贮存寿命评估[J].中国惯性技术学报,2010,18(6):756-760.Ma Jing,Yuan Dandan,Chao Daihong,et al.Accelerated storage life evaluation of FOG based on drift Brownian movement[J].Journal of Chinese Inertial Technology,2010,18(6):756-760(in Chinese).
[13] 张建平,王睿韬.威布尔分布下VFD恒定应力加速寿命试验与统计分析[J].液晶与显示,2010,25(2):205-209.Zhang Jianping,Wang Ruitao.Constant stress accelerated life tests and statistical analysis for VFD under Weibull distribution case[J].Chinese Journal of Liquid Crystals and Displays,2010,25(2):205-209(in Chinese).
[14] 刘思峰,杨英杰.灰色系统研究进展(2004-2014)[J].南京航空航天大学学报,2015,47(1):1-18.Liu Sifeng,Yang Yingjie.Advances in gray system research (2004-2014)[J].Journal of Nanjing University of Aeronatics & Astronautics,2015,47(1):1-18(in Chinese).
[15] Weibull W.A statistical distribution function of wide applicability[J].Journal of Applied Mechanics,1951,18(3):293-297.