Method for onsite load test and evaluation of wind turbine blades
A wind turbine blade and load testing technology, which is applied in the testing of mechanical components, testing of machine/structural components, measuring devices, etc., can solve difficult problems such as load evaluation of wind turbine blades
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[0030] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the examples. It should be noted that the following descriptions are only preferred embodiments of the present invention, and therefore do not limit the protection scope of the present invention.
[0031] In this embodiment, taking the current mainstream MW-level wind turbine blade as an example, the following steps are used to test and evaluate the on-site load of the blade:
[0032] 1) Determine the section position of the blade to be estimated for load evaluation. The location of the load evaluation section is selected. According to the results of the blade load design report, the load-focused sections are determined at 0.5m, 10m, 20m, 30m, and 40m away from the blade root. Four reference points are selected as load evaluation points on the edge, trailing edge, pressure surface and suctio...
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