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GB/T 25384-2018: Wind turbines -- Full scale structural testing of rotor blade
Status: Valid GB/T 25384: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 25384-2018 | English | 724 |
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Wind turbines -- Full scale structural testing of rotor blade
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GB/T 25384-2018
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Turbine blade of wind turbine generator systems -- Full-scale structural testing of rotor blades
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Basic data | Standard ID | GB/T 25384-2018 (GB/T25384-2018) | | Description (Translated English) | Wind turbines -- Full scale structural testing of rotor blade | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | F11 | | Classification of International Standard | 27.180 | | Word Count Estimation | 38,355 | | Date of Issue | 2018-12-28 | | Date of Implementation | 2019-07-01 | | Older Standard (superseded by this standard) | GB/T 25384-2010 | | Regulation (derived from) | National Standard Announcement No. 17 of 2018 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 25384-2018: Wind turbines -- Full scale structural testing of rotor blade---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Wind turbines--Full scale structural testing of rotor blade
ICS 27.180
F11
National Standards of People's Republic of China
Replace GB/T 25384-2010
Wind Turbine
Full-size structural test of wind turbine blades
(IEC 61400-23.2014, Windturbines-Part 23.
Ful-scalestructuraltestingofrotorblade, IDT)
Published on.2018-12-28
2019-07-01 implementation
State market supervision and administration
China National Standardization Administration issued
Content
Foreword V
Introduction VI
1 Scope 1
2 Normative references 1
3 Terms and Definitions 1
4 logo 4
4.1 Symbol 4
4.2 Greek symbols 5
4.3 Subscript 5
4.4 coordinate system 5
5 Overview 7
5.1 Test purpose 7
5.2 Limit state 7
5.3 Test Limiting Factors 8
5.4 Test results 8
6 Test blade documentation and production process documentation 8
7 Blade test procedure and scheme 9
7.1 Test area 9
7.2 Test procedure 9
7.3 Test plan 9
7.3.1 General 9
7.3.2 Blade description 9
7.3.3 Test load and conditions 10
7.3.4 Test equipment 10
7.3.5 Expected test results 10
8 test load factor 10
8.1 General 10
8.2 Local safety factor used in design 10
8.2.1 Overview 10
8.2.2 Material local safety factor 10
8.2.3 Failure consequences Local safety factor 11
8.2.4 Local safety factor of load 11
8.3 Test load factor 11
8.3.1 Differences between blades 11
8.3.2 Possible errors in the fatigue formula 11
8.3.3 Environmental conditions 12
8.4 Determine the load factor used for the target load 12
9 Test loading and test load evaluation 12
9.1 General 12
9.2 Impact of load introduction 13
9.3 Static test 13
9.4 Fatigue test 13
10 Test requirements 14
10.1 General 14
10.1.1 Test Record 14
10.1.2 Instrument Calibration 14
10.1.3 Measurement uncertainty 14
10.1.4 Requirements for root fixtures and test benches 14
10.1.5 Environmental Condition Monitoring 15
10.1.6 Load Correction 15
10.2 Static test 15
10.2.1 General 15
10.2.2 Static test 15
10.2.3 Strain measurement 16
10.2.4 Deformation measurement 16
10.3 Fatigue test 16
10.4 Other tests to determine blade characteristics 16
10.4.1 Blade weight and center of gravity 16
10.4.2 Natural frequency 16
10.4.3 Optional blade characteristics test 16
11 Evaluation of test results 17
11.1 General 17
11.2 Catastrophic failure 17
11.3 Permanent deformation, stiffness attenuation or other changes in blade performance 17
11.4 Apparent damage 17
11.5 Failure Assessment 18
12 Report 18
12.1 General 18
12.2 Contents of the test report 18
12.3 Test evaluation of design requirements 18
Appendix A (informative) Guidelines for re-implementing the need for static and fatigue testing 19
Appendix B (informative) Test area 20
Appendix C (informative) Impact of large deformation and load direction 21
Appendix D (informative) Calculation of test load 22
D.1 Static test target load 22
D.2 Fatigue test target load 22
D.3 single point, continuous single axis test 24
D.4 Multi-axis single-point loading 25
Appendix E (informative) Differences between design load conditions and test load conditions 26
E.1 General 26
E.2 loading 26
E.3 bending moment and shear force 26
E.4 Synthesis of the direction of the flapping direction and the direction of the shimmy 27
E.5 Radial load 27
E.6 Torsion load 27
E.7 Environmental conditions 27
E.8 Fatigue load spectrum and loading sequence 27
Appendix F (informative) Determination of the number of fatigue test load cycles 28
F.1 General 28
F.2 Background 28
F.3 How to use 28
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This standard replaces GB/T 25384-2010 "Full-size structural test of wind turbine blades for wind turbines". And GB/T 25384-
In addition to editorial changes in.2010, the main technical changes are as follows.
--- Increased static test after fatigue test (see Chapter 1);
--- Removed the description of the less commonly used strength-based test methods (see Chapter 8 of the.2010 edition);
--- Adjusted the impact of load introduction (see Chapter 9, Chapter 10 of the.2010 edition);
--- Revised the description of the failure pattern (see Chapter 11, Chapter 11 of the.2010 edition);
--- Delete the contents of the Chapter 14 component test in the.2010 edition of the standard;
--- Delete the description of the test equipment example in Appendix D of the.2010 edition standard;
--- Add Appendix A for test alternatives, Appendix B for test areas, and Appendix D for test loads.
Recognize, Appendix F for the introduction of the error factor for the fatigue formula.
This standard uses the translation method equivalent to IEC 61400-23.2014 "Wind Generators Part 23. Full-size structure of wind turbine blades
test".
For ease of use, this standard has been edited as follows.
--- Change the standard name to "Full-size structural test of wind turbine blades for wind turbines".
This standard was proposed by the China Machinery Industry Federation.
This standard is under the jurisdiction of the National Wind Machinery Standardization Technical Committee (SAC/TC50).
This standard was drafted. Beijing Jianheng Certification Center Co., Ltd., China Agricultural Mechanization Science Research Institute Hohhot Branch, Sinoma Branch
Technical Wind Power Blade Co., Ltd., Lianyungang Zhongfu Lianzhong Composite Materials Group Co., Ltd., Xinjiang Goldwind Technology Co., Ltd., Guodian
United Power Technology Co., Ltd., Shanghai Electric Wind Power Group Co., Ltd., Zhongke Yuneng Technology Development Co., Ltd., Jilin Chongtong Chengfei New Materials
Stock Company, Zhuzhou Times New Materials Technology Co., Ltd., Mingyang Smart Energy Group Co., Ltd., Zhejiang Yunda Wind Power Co., Ltd.
Company, Luoyang Shuangrui Wind Power Blade Co., Ltd., Vision Energy (Jiangsu) Co., Ltd.
The main drafters of this standard. Zhang Jinfeng, Wang Jianping, Li Chengliang, Huang Huixiu, Qi Peiyu, Liu Weichao, Xu Shiqing, Xu Yu, Zhang Shiqiang,
Hou Binbin, Li Xiuhai, Zhou Xiaoliang, Wu Shengjun, Zhu Xiaoqin, Dai Jun.
The previous versions of the standards replaced by this standard are.
---GB/T 25384-2010.
Introduction
Wind turbine blades are a key component of wind turbines. This standard requires the full-size test of the blade during the certification process and the test knot.
The assessment of the results is explained.
This standard does not require different test methods independently researched and developed by different countries and laboratories at different historical stages.
In addition, in order to verify some of the important design assumptions required for load calculation, this standard contains the tests required to determine blade characteristics.
If the security of the system can be proved, the relevant requirements in this standard can be modified.
This standard is based on IEC TS61400-23.2001. Compared with TS, this standard only applies to load testing and its basic requirements and principles.
Line description.
Wind Turbine
Full-size structural test of wind turbine blades
1 Scope
This standard specifies the requirements for full-scale structural test of wind turbine blades, and describes and evaluates the test results.
This standard applies to manufacturers and third-party review bodies for blade test integrity assessment.
This standard contains the following tests.
● Static test;
● fatigue test;
● Static test after fatigue test;
• Tests to determine other characteristics of the blade.
The purpose of the test is to confirm that all blades of a certain type of blade meet the acceptable probability level of the design assumption.
This standard assumes that the parameters defined in the test based on the wind turbine standard GB/T 18451.1 or its equivalent are valid.
Design load and blade material data should be considered when calculating and evaluating test loads. The design load and actual load are not evaluated in this standard.
Within the scope.
This standard is applicable to the full-scale structural test of horizontal-axis wind turbine blades. The blades are mainly composed of fiber reinforced plastic, wood or epoxy resin.
to make. Most of the principles in this standard can be applied to blades for wind turbines of different configurations and blade tests of different sizes and materials.
2 Normative references
The following documents are indispensable for the application of this document. For dated references, only the dated version applies to this article.
Pieces. For undated references, the latest edition (including all amendments) applies to this document.
GB/T 2900.53-2001 Electrotechnical terminology wind turbine (IEC 60050-415.1999, IDT)
GB/T 18451.1-2012 Wind turbine design requirements (IEC 61400-1.2005, IDT)
GB/T 27025-2008 General requirements for testing and calibration laboratory capabilities (ISO /IEC 17025.2005, IDT)
ISO 2394.1998 General Principles of Structural Reliability (Generalprinciplesonreliabilityforstructures)
3 Terms and definitions
The following terms and definitions as defined in GB/T 2900.53-2001 apply to this document.
3.1
Loader actuator
A device that can be controlled to apply a constant load or to vary loads and displacements.
3.2
Leaf root bladeroot
The part of the blade that is connected to the hub.
3.3
Blade subsystem bladesubsystem
A collection of projects capable of defining targets and functions defined on the blade (eg, lightning protection subsystem, pneumatic brake subsystem, monitor)
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