Multi-point loading and side-pulling testing apparatus for static tests on blades of large wind turbines

A technology of wind rotor blades and static force test, which is applied in the direction of measuring device, using stable tension/pressure test material strength, instrument, etc., to achieve the effect of flexible movement
CN102455264AInactive Publication Date: 2012-05-16AVIC HUITENG WINDPOWER EQUIP
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
AVIC HUITENG WINDPOWER EQUIP
Publication Date
2012-05-16
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a multi-point loading and side-pulling testing apparatus for static tests on blades of large wind turbines, which is characterized in that a to-be-tested blade is fixed by a permanent seat parallel to the ground, a plurality of side-pulling supports are arranged on one side of the blade and perpendicular to the ground, and the distribution number of the side-pulling supports is corresponding to the number of blade loading points; the testing apparatus is provided with at least a power plant, and the power plant loads static forces on sectionalization test parts of the blade by the plurality of side-pulling supports; the height of a fixed pulley on each side-pulling support can be adjusted with the height of the blade loading point, and the position of each side-pulling support can be flexibly moved according to different blade loading positions. The testing apparatus disclosed by the invention can adapt to tests on different-sized blades, and the blade loading points and the fixed pulleys are always in horizontal positions, therefore, a situation that forces transferred to the blade loading points through pulling a rope are always in the horizontal direction is ensured, and real and reasonable test data are obtained, thereby achieving a test effect on multi-point loading in static tests.
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Description

technical field

[0001] The invention relates to a novel static loading test device, in particular to a multi-point loading side tension test device for the static test of wind turbine blades. Background technique

[0002] With the increase of blade length, single-point loading and two-point loading can no longer meet the test requirements in the static loading of large wind turbine blades. Generally, multi-point loading is used. Compared with single-point loading and two-point loading, this method can Produces more realistic shear loads. Multi-point loading needs to be equipped with a suitable static test loading device. At present, the development of domestic wind power blade testing technology is relatively late, and there is no corresponding static test multi-point loading test device to complete the blade test requirements. Contents of the invention

[0003] The purpose of the present invention is to propose a multi-point loading side tension test device for static te...

Claims

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