系统健康管理中的寿命模型仿真研究

Research on Life Model Simulation of the System Health Management

在航空、航天、通信等领域,高可靠性和长寿命设计的产品所占比重逐渐增大;性能退化状态评估和剩余使用寿命预测技术在提高该类产品安全性和维护效率、降低全寿命周期成本等方面意义重大;针对当前国内健康管理研究中缺乏寿命及可靠性基础数据的现状,介绍了系统寿命预测的典型过程,重点分析了寿命模型研究和仿真中存在的若干问题,旨在建立实现简单且与实际系统运行过程相似度高的寿命模型的建模方法,为后续系统性能状态评估提供有效的数据支持。

In the areas such as aviation,aerospace and communication,high reliability and tong life design products are widely used.Assess of the performance degradation status or prediction of the remaining useful life have great significance in enhancing system safety,increasing maintenance efficiency and reducing total life cycle cost of the system.To cover the shortage of life and reliability data in domestic health management,the system representative modeling process is presented.Especially,the existent problems for further research of life model and modeling simulation are investigated,which is to obtain the life model easy to fulfill and with high-fidelity.Then it can be hoped to provide efficient data support for further performance degradation status assessment.