基于国家标准的可靠性建模问题与对策探讨

在国家标准的约束下,针对有效载荷分系统呈现的新特点,提出了可靠性措施,并通过质量屋模型,识别出关键的可靠性措施。通过可靠性建模方法的分析,表明真值表法可以有效地实现关键可靠性措施,但存在两个难题,分别是故障预测与系统健康管理(PHM)技术的可靠性评估和基于真值表法的可靠性分配。给出基于真值表法的PHM评估方法,并发现实现PHM技术的自主性是提高有效载荷可靠性的关键;给出基于成功次数的重要度定义,并推导了可靠性建模与分配的理论公式。理论分析表明,上述方法简单、有效、易以实施并满足有效载荷分系统的工作实际。

Problems about Reliability Model Development and its Solutions Based on National Standards

In the frame of the national standards, a method to improve the reliability of the pay- loads is offered based on their new features, and the key method is identified using the house of quality （HOQ） . By analyzing reliability modeling, it is shown that the true table can effectively realizing the key reliability measures, but there are two difficulties, i.e. assessing reliability of PHM technology and allocating reliability index based on the true table. In this paper, the as- sessing method of PHM based on the true table is pro Based on new concept of im- portance, the new equation for assigning reliability offered. Theoretical analysis shows that the above method was effective.