Method for quickly assessing static strength of large part of wind turbine generator set

A wind turbine, static strength technology, applied in the direction of electric digital data processing, special data processing applications, instruments, etc., can solve the problems of huge workload and time-consuming, and achieve the improvement of overall efficiency, sustainable optimization, and compensation speed slower effect

Active Publication Date: 2018-01-09
CRRC WIND POWER(SHANDONG) CO LTD
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Problems solved by technology

[0004] The workload of static strength analysis for large components of wind turbines is very large, and it will take

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  • Method for quickly assessing static strength of large part of wind turbine generator set
  • Method for quickly assessing static strength of large part of wind turbine generator set
  • Method for quickly assessing static strength of large part of wind turbine generator set

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[0029] The present invention will be further described below in conjunction with the drawings and embodiments.

[0030] It should be noted that the following detailed descriptions are all illustrative and are intended to provide further descriptions of the present invention. Unless otherwise indicated, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present invention belongs.

[0031] It should be noted that the terms used here are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present invention. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should also be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate There are features, steps, operations, devices, com...

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Abstract

The invention discloses a method for quickly assessing the static strength of a large part of a wind turbine generator set. The method comprises the steps that a strength analysis database including the corresponding relation of stress components and load components of key nodes of the large part is established; based on the strength analysis database, a stress component interpolation and equivalent stress combination method is adopted to quick assess the static strength of the large part; by comparing a result of the quick assessment method and a result of a finite element method, an error value of the assessment result is calculated, a stress component difference value and an equivalent stress are combined, and the error value is corrected to obtain a static strength assessing. On the basis that the accuracy of the static strength result of the large part is ensured, repeated analysis work can be effectively avoided, and the time for analyzing the static strength of the large part ofthe wind turbine generator set is greatly shortened.

Description

technical field [0001] The invention relates to a method for quickly evaluating the static strength of large components of a wind turbine. Background technique [0002] In recent years, under the impetus of wind power policies and related laws and regulations in various countries in the world, the wind power industry has developed rapidly. Wind turbine strength analysis and calculation, as the core link in the R&D and manufacturing process of wind turbines, has always been valued by wind turbine manufacturers, universities and research institutions. [0003] For wind turbine manufacturers, with the continuous improvement of product serialization and the increasing number of new wind farms, and the wind resource conditions of the wind farms encountered are different, the machine position loads vary significantly, and a large amount of strength assessment work is required. [0004] The workload of static strength analysis for large components of wind turbines is very large, a...

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Application Information

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IPC IPC(8): G06F17/50
CPCY02E60/00
Inventor 徐苾璇李钢强田家彬白儒刘建斌张洪达
Owner CRRC WIND POWER(SHANDONG) CO LTD
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