Structural Health Monitoring – Its Association and Use
Structural Health Monitoring – Its Association and Use
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结构健康监测——其关联和用途
DOI：
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发表时间：
2013
期刊：
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通讯作者：
C. Boller
中科院分区：
文献类型：
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作者：
C. Boller
结构健康监测是一个存在了二十多年的概念。在基于无损检测(NDT)技术的损伤容限设计的触发下，必须以规定的间隔检测损伤，现代传感硬件现在可以集成到结构材料中，并与先进的信号处理软件相结合，使NDT成为材料和结构的组成部分，从而使传统的检测过程实现自动化。本章通过描述设计损伤容限结构时的需求和假设，提供了对结构损伤管理的背景和动机的洞察。它解释了载荷监测的必要性，以及这些载荷对损伤的影响，例如在结构使用寿命期间的疲劳传播。讨论了具有特定健康监测潜力的无损检测技术，包括它们对监测碳纤维增强复合材料的影响，碳纤维增强复合材料是健康监测发挥重要作用的不同材料类型之一。最后，以航空领域为例，对SHM的实施和所能带来的效益进行了展望，并对SHM在风能发电中的应用进行了展望。
Structural Health Monitoring (SHM) is an expression being around for more than two decades now. Triggered by damage tolerant design where damage has to be inspected at defined intervals based on non-destructive testing (NDT) techniques modern sensing hardware may now be integrated into structural materials and combined with advanced signal processing software making NDT to become an integral part of materials and structures and hence conventional inspection processes to be automated. This chapter provides an insight into the background of and the motivation for SHM by describing needs and assumptions made when designing a damage tolerant structure. It explains the need for loads monitoring and the implications those loads have on damage such as fatigue propagating during a structure’s operational life. NDT techniques with a specific potential for SHM are addressed including their impact on monitoring carbon-fibre reinforced composites being one of the different material types where SHM plays a significant role. Finally some outlook is made with regard to SHM implementation and the benefits to be gained where examples have been taken from aviation and some outlook is provided considering SHM applications in wind energy generation.