系统工程与电子技术 ›› 2024, Vol. 46 ›› Issue (7): 2401-2412.doi: 10.12305/j.issn.1001-506X.2024.07.22

• 系统工程 • 上一篇    

无人机系统MTBF和使用可用度的建模与仿真

陈旭1,2, 李岳1,2,*, 张书锋1,2   

  1. 1. 国防科技大学智能科学学院, 湖南 长沙 410073
    2. 国防科技大学装备综合保障技术重点实验室, 湖南 长沙 41007
  • 收稿日期:2023-06-26 出版日期:2024-06-28 发布日期:2024-07-02
  • 通讯作者: 李岳
  • 作者简介:陈旭(1995—), 男, 硕士研究生, 主要研究方向为装备综合保障、可靠性试验与评估
    李岳(1964—), 男, 教授, 博士研究生导师, 博士, 主要研究方向为装备综合保障、可靠性试验与评估
    张书锋(1987—), 男, 副研究员, 硕士研究生导师, 博士, 主要研究方向为结构可靠性、实验力学、复合材料

Modeling and simulation of UAV system's MTBF and operational availability

Xu CHEN1,2, Yue LI1,2,*, Shufeng ZHANG1,2   

  1. 1. College of Intelligence Science and Technology, National University of Defense Technology, Changsha 410073, China
    2. Science and Technology on Integrated Logistics Support Laboratory, National University of Defense Technology, Changsha 410073, China
  • Received:2023-06-26 Online:2024-06-28 Published:2024-07-02
  • Contact: Yue LI

摘要:

针对无人机系统组成结构复杂、影响其可靠性可用性的维修保障因素较多的问题, 基于设备寿命分布假设, 构建了考虑预防性维修和起飞前故障检查的系统平均故障间隔时间(mean time between failures, MTBF)和使用可用度解析模型。并模拟无人机的维修过程, 采用蒙特卡罗仿真的方法进行MTBF和使用可用度的仿真分析。解析与仿真两种方法的结果具有较好的一致性, 可为无人机确定保障方案提供技术途径。

关键词: 平均故障间隔时间, 使用可用度, 预防性维修, 起飞前检查

Abstract:

Considering the unmanned aerial vehicle (UAV) system has a complex structure, and there are many maintenance support factors that affect its reliability and availability, an analytical model of UAV system's mean time between failures (MTBF) and operational availability considering preventive maintenance and pre-flight fault detection is constructed, basing on the assumption of equipment life distribution. A Monte Carlo simulation is used to simulate the maintenance process of the UAV and to analyse the MTBF and operational availability. The analytical and simulation methods agree well with each other, which shows that the proposed method could provide support for determining the guarantee scheme for UAVs.

Key words: mean time between failures (MTBF), operational availability, preventive maintenance, pre-flight

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