Monitoring the condition of Marine Renewable Energy Devices through underwater Acoustic Emissions: Case study of a Wave Energy Converter in Falmouth Bay, UK
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- 作者：Jodi Walsha ; b ; jw631@exeter.ac.uk" class="auth_mail" title="E-mail the corresponding author ; Imran Bashira ; Joanne K. Garretta ; Philipp R. Thiesa ; Philippe Blondelb ; Lars Johanninga
- 关键词：Underwater acoustics ; Acoustic Emission ; Condition monitoring ; Health monitoring ; Marine Renewable Energy ; Wave Energy Converter
- 刊名：Renewable Energy
- 出版年：2017
- 出版时间：March 2017
- 年：2017
- 卷：102
- 期：part_PA
- 页码：205-213
- 全文大小：1769 K
文摘
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This article presents an analysis of underwater Acoustic Emissions for a WEC to identify acoustic signatures for Condition Health Monitoring.
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It uses 2 years of broadband acoustic measurements and ancillary data from the Fred. Olsen Bolt-2 Lifesaver deployed in Falmouth Bay, UK.
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Time-frequency analyses detect acoustic signatures of active PTO and other components in the frequency band 60 Hz–5 kHz monitored from 200 m away.
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These results demonstrate the feasibility of remote monitoring of the health of Marine Renewable Energy Devices using their Acoustic Emissions.