Operational strategy update for marine energy converters based on dynamic reliability assessment through integration of Structural Health Monitoring

该项目旨在开发一个框架，该框架将通过海洋能源转换器的结构健康监测（SHM）系统收集和记录的数据集成在一起，以便实时估计组件和系统级别的可靠性水平，并评估其进一步实现其预期功能的能力。对系统的实际状态有了更充分的了解，就可以采用替代的操作策略，特别是考虑到极端环境事件后的剩余容量，优化其检查和维护计划，从而降低运营成本。将开发的框架应用于中国合作伙伴已经开发的现有原型波装置，将允许其验证和扩展到未来的应用。该参考案例将用于对其组件进行分类，并确定潜在的失效模式和极限状态以评估失效。根据将确定的关键失效机制，将提出结构健康监测的安排，从相关测量（即应变和加速度）中获取数据，然后可以实时通知可靠性评估，更新其操作策略，特别是考虑到极端环境事件后的剩余容量。该项目的结果将是一个适用于一系列海洋能源设备的通用框架。

This project aims to develop a framework that will integrate data collected and recorded through a Structural Health Monitoring (SHM) system for marine energy converters, in order to estimate reliability levels at component and system level in real time and evaluate its ability to further fulfil its intended function. Obtaining a more well-informed understanding of the actual state of the system, alternative operational strategies can be adopted, particularly taking into consideration its residual capacity after extreme environmental events, optimizing its inspection and maintenance scheduling and hence reducing the OPEX. Application of the developed framework on an existing prototype wave device, already developed by the Chinese partners, will allow its validation and extension to future applications. This reference case will be employed in order to classify its components and determine potential failure modes and limit states to assess failure. From the key failure mechanisms that will be identified, arrangements for Structural Health Monitoring will be proposed obtaining data from relevant measurements (ie strains and accelerations) that can then inform the reliability evaluation in real time, updating its operational strategy, particularly taking into consideration residual capacity after extreme environmental events. Outcome of the project will be a generic framework applicable to a range of marine energy devices.