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System, testing assembly and method for fatigue testing of wind turbine blade

一种风力涡轮机、疲劳测试的技术，应用在风力发动机的监控、风力发动机、机械部件的测试等方向，能够解决无法用于确定风力涡轮机叶片疲劳测试疲劳目标、疲劳测试不安全、昂贵等问题，达到省时测试方法、精确疲劳测试结果、提高精度的效果

Active Publication Date: 2020-07-28
SIEMENS GAMESA RENEWABLE ENERGY AS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This would make fatigue testing unsafe to perform and cannot be used to determine whether wind turbine blades can be fatigue tested up to the maximum fatigue target
However, it is time-consuming and expensive to perform separate fatigue tests in the flailing and shimmy directions to avoid this problem
However, even in a separate fatigue test in either the flapping direction or the shimmy direction, some parts of the wind turbine blade will be overtested because it is physically impossible to achieve maximum fatigue of all parts of the wind turbine blade simultaneously Target

Method used

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  • System, testing assembly and method for fatigue testing of wind turbine blade
  • System, testing assembly and method for fatigue testing of wind turbine blade
  • System, testing assembly and method for fatigue testing of wind turbine blade

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Embodiment Construction

[0031] figure 1 An embodiment of a test assembly according to a first embodiment of the test assembly according to the invention is shown. The test assembly comprises a wind turbine blade 10, the tip 12 of which is shown, but the part of the wind turbine blade 10 close to the root end 11 and the standoff 20 in which the root end 11 is held are not shown in this figure. The test assembly is mounted in a stand 20 such that it is suspended.

[0032] Four loads 60.1, 60.2, 60.3, 60.4 are attached to the wind turbine blade 10 spaced apart from each other. In this embodiment, the loads 60.1, 60.2, 60.3, 60.4 are designed as yokes. In particular, each yoke comprises four rods attached to each other to form a rectangular shape. Two retaining plates are arranged between these four rods. The retaining plate is designed at one side thereof to correspond to the shape of the wind turbine blade 10 at the location where the yoke is attached to the wind turbine blade 10 . The loads 60.1,...

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Abstract

The invention relates to a system, a testing assembly and a method for fatigue testing of a wind turbine blade. The invention is directed at a system for fatigue testing a wind turbine blade (10) comprising: a mounting (20) for retaining a root end (11) of the wind turbine blade (10), at least one actuator assembly (30) for attachment to the wind turbine blade (10), the at least one actuator assembly (30) comprising at least one actuator (31) for exciting the wind turbine blade (10) in flapwise directions (F) and / or edgewise directions (E), and at least one measuring device (40) for measuringof a stress, a strain and / or a deflection of the wind turbine blade (10). The system further comprises at least one tuned liquid damper (50) for attachment to the wind turbine blade (10), the tuned liquid damper (50) comprising a container (51) and a liquid (52) contained therein.

Description

technical field [0001] The present invention relates to a system for fatigue testing a wind turbine blade comprising: (a) a mounting for holding the root end of the wind turbine blade; (b) a mounting for attachment to the wind turbine blade; at least one actuator assembly of a turbine blade, the at least one actuator assembly comprising at least one actuator for exciting the wind turbine blade in a flapwise direction and / or an edgewise direction; and (c) at least one measuring device for measuring stress, strain and / or deflection of the wind turbine blade. Furthermore, the invention relates to a test assembly comprising a system according to the invention and a wind turbine blade. Furthermore, the invention relates to a method for fatigue testing a wind turbine blade with a test assembly according to the invention. Background technique [0002] Wind turbine blades must be able to efficiently convert wind into rotational motion of the wind turbine blade so that energy of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M13/00G01N3/32
CPCG01N3/32G01M13/00G01M5/0016F03D17/00F05B2260/83G01M5/005
Inventor S.克里斯琴森
Owner SIEMENS GAMESA RENEWABLE ENERGY AS
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