Strain gauge measurements on a full scale tidal turbine blade

Strain gauge measurements on a full scale tidal turbine blade
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全尺寸潮汐涡轮机叶片上的应变仪测量

DOI:
10.1016/j.renene.2021.01.137
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发表时间:
2021
期刊:
影响因子:
8.7
通讯作者:
I. Masters
I. Masters
中科院分区:
工程技术1区
文献类型:
--
作者:
Thomas Lake;Jack Hughes;M. Togneri;A. Williams;P. Jeffcoate;R. Starzmann;N. Kaufmann;I. Masters

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潮汐能变流器的发展,特别是浮式潮汐能变流器,是近年来发展较快的一个领域。在2017/18冬季对浮动潮汐能装置进行测试,从而有机会记录和检查运行条件下全尺寸复合涡轮叶片的应变,并比较产生和停放行为。对记录数据的比较表明,在IEC62600-200规定的平均周期内,叶片应变与扭矩和推力都有很好的相关性,尽管对应变数据产生的频谱的检查表明,在采用这种特殊测量安排的更大规模推力和扭矩记录中,不一定能检测到应变的高频波动。还强调了对记录系统上良好同步时钟的需求,以及用于恢复来自不同系统的数据对齐的相互关联方法,以便在系统之间时钟偏差相似数量级的时期内对它们进行比较。
The development of tidal energy converters, and particularly floating tidal energy converters, is an area of increased development in recent years. Testing of a floating tidal energy device over winter 2017/18 led to an opportunity to record and examine strain of a full scale composite turbine blade under operational conditions, with comparison of generating and parked behaviours. Comparison of the recorded data shows that blade strain correlates well with both torque and thrust over the averaging periods specified in IEC62600-200, although examination of frequency spectra generated from the strain data show that higher frequency fluctuations in strain are not necessarily detectable in the larger scale thrust and torque recordings with this particular measurement arrangement. The need for well synchronised clocks on recording systems is also highlighted, along with a cross-correlation method used to recover the alignment of data from different systems to allow comparison between them over periods of a similar order of magnitude to the clock skew between the systems.
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