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基于故障行为的惯导产品贮存寿命试验设计

许丹 林坤松 陈云霞

许丹, 林坤松, 陈云霞等 . 基于故障行为的惯导产品贮存寿命试验设计[J]. 北京航空航天大学学报, 2018, 44(3): 437-443. doi: 10.13700/j.bh.1001-5965.2017.0408
引用本文: 许丹, 林坤松, 陈云霞等 . 基于故障行为的惯导产品贮存寿命试验设计[J]. 北京航空航天大学学报, 2018, 44(3): 437-443. doi: 10.13700/j.bh.1001-5965.2017.0408
XU Dan, LIN Kunsong, Chen Yunxiaet al. Failure behavior based storage life test design for inertial navigation products[J]. Journal of Beijing University of Aeronautics and Astronautics, 2018, 44(3): 437-443. doi: 10.13700/j.bh.1001-5965.2017.0408(in Chinese)
Citation: XU Dan, LIN Kunsong, Chen Yunxiaet al. Failure behavior based storage life test design for inertial navigation products[J]. Journal of Beijing University of Aeronautics and Astronautics, 2018, 44(3): 437-443. doi: 10.13700/j.bh.1001-5965.2017.0408(in Chinese)

基于故障行为的惯导产品贮存寿命试验设计

doi: 10.13700/j.bh.1001-5965.2017.0408
基金项目: 

国家自然科学基金 61403010

详细信息
    作者简介:

    许丹  女,博士,讲师。主要研究方向:基于故障物理的寿命建模与试验验证、加速试验

    林坤松  男,博士研究生。主要研究方向:系统试验评估技术

    陈云霞  女,博士,教授。主要研究方向:系统寿命设计分析与试验评估技术、寿命学

    通讯作者:

    许丹. E-mail: xudan@buaa.edu.cn

  • 中图分类号: V241.4;TB114.3

Failure behavior based storage life test design for inertial navigation products

Funds: 

National Natural Science Foundation of China 61403010

More Information
  • 摘要:

    以典型惯导产品加速度计贮存寿命评估为例,提出了一种基于故障行为模型的加速退化试验设计方法,解决了缺乏预试验数据情况下试验应力水平设计的问题。在通过对产品特性和主机理分析基础上,确定表征产品贮存寿命特征参数及试验应力,构建了考虑材料等分散性的加速度计故障行为模型,用以描述参数加速时变规律的特性。在试验应力最高水平确定的情况下,基于给定置信度和故障行为模型,以高应力水平下退化量的置信下限与低应力水平下退化量的置信上限不交叉为原则,采用基于仿真的加速退化试验设计方法,优化确定低应力和中间应力水平,从而设计给出试验剖面,并给出了加速退化试验方案优选流程,最终从备选方案集中确定加速度计试验最优方案。通过实际案例分析,验证了该方法的有效性。

     

  • 图 1  石英挠性加速度计表头结构

    Figure 1.  Structure of quartz flexible accelerometer header

    图 2  含置信度的标度因数退化曲线(γ=90%)

    Figure 2.  Degradation curves of scale factor with confidence coefficient (γ=90%)

    图 3  T2可选范围确认流程示意图

    Figure 3.  Schematic diagram of optional range validation procedure for T2

    图 4  加速度计标度因数加速退化试验方案优选流程

    Figure 4.  Optimization procedure of accelerometer scale factor accelerated degradation test scheme

    图 5  T2, T3温度可选范围上限时的标度因数退化曲线

    Figure 5.  Degradation curves of scale factor under optional range upper limit of temperature T2, T3

    图 6  90℃伪寿命对数正态分布概率图

    Figure 6.  Probability graph of lognormal distribution of pseudo life at 90℃

    图 7  备选方案优化目标函数值

    Figure 7.  Optimization objective function value of optional plan

    表  1  备选方案T2, T3温度设置

    Table  1.   Optional plan of temperature setting of T2, T3

    T2 T3
    75 60, 55, 50, 45, 40, 35, 30
    70 55, 50, 45, 40, 35, 30
    65 50, 45, 40, 35, 30
    60 45, 40, 35, 30
    55 40, 35, 30
    50 35, 30
    45 30
    下载: 导出CSV
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    XU D, LIAO X, CHEN Y X, et al.Analysis of the storage stability of accelerometers[J]. Journal of Beijing University of Aeronautics and Astronautics, 2013, 39(2):173-177(in Chinese). http://bhxb.buaa.edu.cn/CN/abstract/abstract12525.shtml
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出版历程
  • 收稿日期:  2017-06-15
  • 录用日期:  2017-06-23
  • 刊出日期:  2018-03-20

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