Testing methods for wind turbine blades
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United States of America Patent
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May 24, 2016
Grant Date -
Dec 13, 2012
app pub date -
May 11, 2012
filing date -
May 16, 2011
priority date (Note) -
In Force
status (Latency Note)
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Abstract
Testing method for determining the distribution of a physical property along a wind turbine blade comprising the following steps: a) installing inside the blade a first optical fiber cable (13) along the leading and trailing edges and a second and third centered optical fiber cables (14, 15) at both sides of the blade (9), leaving in them a free end; b) applying one load to the blade (9) in a test bench (10) placed at the blade factory; c) obtaining the strain distribution produced by said load along the blade (9) using a suitable external equipment connected to said free end for measuring the strain using Rayleigh scattered light; d) determining the distribution of said physical property from said strain distribution; e) comparing the distribution of said physical property with its design distribution. The invention also comprises a method of installation of said cables.
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