Static strength test method of large vane used for wind power and electrical power and test system thereof

A testing system and testing method technology, applied in the testing of mechanical parts, the use of applied stable tension/pressure to test the strength of materials, the testing of machine/structural parts, etc., can solve the high cost of construction and maintenance, increase the cost of blade manufacturing, Transport time and other issues, to facilitate analysis and evaluation, reduce related costs, and save huge costs
CN101634604AInactive Publication Date: 2010-01-27NAT UNIV OF DEFENSE TECH +1
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
NAT UNIV OF DEFENSE TECH
Publication Date
2010-01-27
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention discloses a static strength test method of a large vane used for wind power and electrical power and a test system thereof. The test method comprises the following steps: keeping the vane flat, fixing one end of the root of the vane through a fix support of the test system, vertically loading the vane with a crane, wherein the loading mode is as follows: single point loading through the crane is converted into multi-point loading through a load distributing beam; and then, transmitting the multi-point loading to the vane through a vane loading clamp. The lifting point of the crane, the load distributing beam and the vane loading clamp are connected together through slings provided with load sensors, a strain piece and a displacement sensor are arranged on the vane, and stress, shape change and displacement data information respectively collected from the loading process are used for determining whether the static strength of the vane meets the requirements of design or not. The test method of the invention has the advantages of low area limit, low test cost, convenient process operation and accurate test result; and the test system of the invention has the advantages of simple manufacturing, convenient assemble, low cost and long service life.
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Description

technical field

[0001] The invention relates to a static strength test method and a test system for a blade of a wind power generator, in particular to a static strength test method and a test system for a large blade of a wind power generator. Background technique

[0002] In wind power equipment, the blades of wind turbines are extremely important key components, and their performance directly determines the power and service life of the generator set. In order to reduce the cost of wind power generation, the wind power industry has higher and higher requirements for the capacity of a single unit, and for every 6% increase in blades, the captured wind energy can increase by 12%, so the blades used in wind power generators are also developing in the direction of large-scale . At present, the blades used in mainstream megawatt wind turbines generally have a blade length of more than 30 m. The blades operate under different wind speeds and must bear different wind loads. Wh...

Claims

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