CN114483481A - Wind power composite material blade defect acoustic emission diagnosis test device - Google Patents
Wind power composite material blade defect acoustic emission diagnosis test device Download PDFInfo
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- CN114483481A CN114483481A CN202111663124.4A CN202111663124A CN114483481A CN 114483481 A CN114483481 A CN 114483481A CN 202111663124 A CN202111663124 A CN 202111663124A CN 114483481 A CN114483481 A CN 114483481A
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- 230000007547 defect Effects 0.000 title claims abstract description 43
- 238000012360 testing method Methods 0.000 title claims abstract description 28
- 239000002131 composite material Substances 0.000 title claims abstract description 25
- 238000003745 diagnosis Methods 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 claims description 11
- 230000008569 process Effects 0.000 claims description 11
- 238000002405 diagnostic procedure Methods 0.000 claims description 7
- 230000007246 mechanism Effects 0.000 claims description 6
- 238000005452 bending Methods 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims description 3
- 230000007847 structural defect Effects 0.000 claims description 2
- 238000004088 simulation Methods 0.000 abstract description 3
- 238000001514 detection method Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 4
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 239000002803 fossil fuel Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
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- 238000010248 power generation Methods 0.000 description 2
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- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000025518 detection of mechanical stimulus involved in sensory perception of wind Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D17/00—Monitoring or testing of wind motors, e.g. diagnostics
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Abstract
The invention provides a wind power composite material blade defect acoustic emission diagnosis test device which comprises a fixed platform, an acoustic emission sensor, an acoustic emission detector, a load loading vehicle and an acoustic emission signal analysis system. In the invention, because the wind power blade has larger and larger volume and is more and more difficult to load, the introduction of the load loading vehicle can carry out loading simulation on the full-size wind power blade.
Description
Technical Field
The invention relates to the technical field of wind power blade detection, in particular to a full-size wind power composite material blade defect acoustic emission diagnosis test device.
Background
The consumption of people to electric energy is continuously increased in the continuous development of society, the source of traditional electric energy is mainly the energy conversion of fossil fuel, and the process of fossil fuel conversion to electric energy can produce a large amount of carbon dioxide, causes the continuous aggravation of ecological environment of global warming effect. In order to achieve the goal of sustainable development, China proposes a specific strategic goal, and the goal is mainly achieved by vigorously developing new energy mainly based on wind power generation and solar power generation. In order to reduce the wind power cost and improve the wind power competitiveness, the larger the single machine capacity of a wind turbine generator is, the longer and longer the wind power blade is, and as a result, the larger the load change borne by the blade in the operation is, and the greater the possibility of generating blade damage and the loss caused by the blade damage are. An advanced blade health state monitoring technology is one of key means for ensuring safe and reliable operation of the wind power blade.
Therefore, how to comprehensively inspect and test the defects and the performance of the wind power blade and research and develop a high-performance blade is a technical problem which needs to be solved urgently at present.
Disclosure of Invention
The invention mainly aims to overcome at least one defect in the prior art and provide a wind power composite material blade defect acoustic emission diagnosis test device which can comprehensively detect and test the defects and the performance of the wind power blade and research and develop a high-performance blade.
In order to achieve the purpose, the invention adopts the following technical scheme:
according to one aspect of the invention, the invention provides a wind power composite material blade defect acoustic emission diagnosis test device, which is used for performing defect diagnosis tests on wind power blades and comprises a fixed table, an acoustic emission sensor, an acoustic emission detector, a load loading vehicle and an acoustic emission signal analysis system, wherein when the wind power blades are tested, blade roots are fixed on the fixed table, the blades are arranged on the load loading vehicle, the acoustic emission sensor is arranged on the blades, the acoustic emission detector is arranged close to the blades, the acoustic emission signal analysis system is in communication connection with the acoustic emission detector, the load loading vehicle applies loads to the blades, the acoustic emission sensor collects acoustic emission signals generated after the blades are stressed and transmits the acoustic emission signals to the acoustic emission detector, the acoustic emission detector processes the acoustic emission signals and transmits the acoustic emission signals to the acoustic emission signal analysis system, and the acoustic emission signal analysis system analyzes and processes the signal sent by the acoustic emission detector, and analyzes whether the interior of the wind power blade has structural defects and the positions of the defects.
According to an embodiment of the present invention, the fixing table includes a base and a fitting table, the base is fixedly disposed, the fitting table is disposed on the base, the fitting table is provided with a fitting hole, and the fitting hole is connected to the blade root through a blade root bolt.
According to an embodiment of the present invention, the registration table is mounted on the base by a first lifting mechanism.
According to an embodiment of the present invention, the number of the acoustic emission sensors is one, or the number of the acoustic emission sensors is two or more, and the acoustic emission sensors are arranged on the blade at intervals.
According to an embodiment of the invention, the acoustic emission sensor has a frequency in the range of 20-400 KHZ.
According to an embodiment of the present invention, the load applied by the load loading vehicle includes any one or a combination of the following: tension, pressure, bending moment, torque, swing.
According to an embodiment of the present invention, the number of the load loading trucks is one, or the number of the load loading trucks is two or more.
According to an embodiment of the invention, the load loading vehicle comprises a chassis and a loading ring, universal wheels are mounted at the bottom of the chassis, and the loading ring is mounted on the chassis and sleeved with the blades.
According to an embodiment of the invention, the load ring is mounted on the chassis by a second lifting mechanism.
According to an embodiment of the present invention, the acoustic emission signal analysis system analyzes the type of the defect of the wind turbine blade and the position of the defect according to the signal sent by the acoustic emission detector.
According to the technical scheme, the wind power composite material blade defect acoustic emission diagnosis test device has the advantages and positive effects that:
1. as the wind power blades are larger and the loading of the wind power blades is more and more difficult, the loading simulation of the full-size wind power blades can be realized by introducing the load loading vehicle.
2. The test detection device can conveniently carry out internal defect acoustic emission detection on the wind power blade, and ensures the quality of the wind power blade.
3. The test detection device has strong adaptability and can meet the defect detection of wind power blades of different sizes.
4. The universal moving load loading vehicle can be used singly or together to simulate different load modes, and can simulate the load of the wind power blade in the actual operation process more truly.
Drawings
Various objects, features and advantages of the present invention will become more apparent from the following detailed description of preferred embodiments of the invention, when considered in conjunction with the accompanying drawings. The drawings are merely exemplary of the invention and are not necessarily drawn to scale. In the drawings, like reference characters designate the same or similar parts throughout the different views. Wherein:
FIG. 1 is a schematic diagram of a wind power composite blade defect acoustic emission diagnostic test device shown in an exemplary embodiment of the invention.
FIG. 2 is a schematic structural diagram of a fixing table in the wind power composite material blade defect acoustic emission diagnosis testing device shown in an exemplary embodiment.
FIG. 3 is a schematic view of a load loading vehicle in the wind power composite blade defect acoustic emission diagnostic test device shown in an exemplary embodiment.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus their detailed description will be omitted.
In the following description of various examples of the invention, reference is made to the accompanying drawings, which form a part hereof, and in which are shown by way of illustration various example structures, systems, and steps in which aspects of the invention may be practiced. It is to be understood that other specific arrangements of parts, structures, example devices, systems, and steps may be utilized and structural and functional modifications may be made without departing from the scope of the present invention. Moreover, although the terms "top," "bottom," "front," "back," "side," and the like may be used in this specification to describe various example features and elements of the invention, these terms are used herein for convenience only, e.g., in accordance with the orientation of the examples described in the figures. Nothing in this specification should be construed as requiring a specific three dimensional orientation of structures in order to fall within the scope of the invention.
FIG. 1 is a schematic diagram of a wind power composite blade defect acoustic emission diagnostic test apparatus of the present invention shown in an exemplary embodiment. FIG. 2 is a schematic structural diagram of a fixing table in the wind power composite material blade defect acoustic emission diagnosis testing device shown in an exemplary embodiment. FIG. 3 is a schematic view of a load loading vehicle in the wind power composite blade defect acoustic emission diagnostic test device shown in an exemplary embodiment.
As shown in fig. 1 to 3, the wind power composite material blade defect acoustic emission diagnosis test device is used for performing defect diagnosis tests on a wind power blade 2, and comprises a fixed table 1, an acoustic emission sensor 3, an acoustic emission detector 4, a load loading vehicle 5 and an acoustic emission signal analysis system 6. When the wind power blade 2 is tested, the blade root is fixed on the fixing platform 1, the blade is arranged on the load loading vehicle 5, the acoustic emission sensor 3 is arranged on the blade, the acoustic emission detector 4 is arranged close to the wind power blade 2, the acoustic emission signal analysis system 6 is in communication connection with the acoustic emission detector 4, the load loading vehicle 5 applies load to the blade, the acoustic emission sensor 3 collects acoustic emission signals generated after the blade is stressed and transmits the acoustic emission signals to the acoustic emission detector 4, the acoustic emission detector 4 processes the acoustic emission signals and then transmits the acoustic emission signals to the acoustic emission signal analysis system 6, and the acoustic emission signal analysis system 6 analyzes and processes signals transmitted by the acoustic emission detector 4 to obtain performance characteristics of the wind power blade 2.
In this embodiment, the fixing station 1 includes a base 11 and a nesting table 13, the base 11 is fixedly disposed, the nesting table 13 is disposed on the base 11, and the nesting table 13 is provided with a nesting hole, and the nesting hole is connected to the blade root through a blade root bolt. In this embodiment, the registration table 13 is mounted on the base 11 via the first lifting mechanism 12. In the actual test process, the fixed station 1 of the wind power blade 2 can be adjusted, raised or lowered according to the wind power blades 2 of different sizes.
In the present embodiment, the number of the acoustic emission sensors 3 is one. In other embodiments, the number of the acoustic emission sensors 3 is two or more, and the acoustic emission sensors are arranged on the blade at intervals. The arrangement position and the number of the acoustic emission sensors 3 are based on the principle that acoustic emission signals emitted from any position of the wind power blade 2 can be completely detected. In this embodiment, the frequency range of the acoustic emission sensor 3 is 20 to 400 KHZ.
In this embodiment, the load applied by the load loading vehicle 5 includes any one or a combination of any several of the following: tension, pressure, bending moment, torque, swing. In this embodiment, the number of the load loading carriages 5 is two. In other embodiments, the number of load loading carts 5 is one or more. The load loading vehicle 5 can be used in one or more combinations according to the load to be applied, and applies tension, torsion, flap, shimmy and the like to the wind power blade 2. In this embodiment, the load loading vehicle 5 includes a chassis 51 and a loading ring 53, the bottom of the chassis 51 is provided with a universal wheel 54, and the loading ring 53 is installed on the chassis 51 and is sleeved with a blade. In this embodiment, the load ring 53 is mounted on the base plate 51 by the second elevating mechanism 52.
In this embodiment, the acoustic emission signal analysis system 6 analyzes the defect type and the defect position of the wind turbine blade 2 according to the signal sent by the acoustic emission detector.
According to the technical scheme, the wind power composite material blade defect acoustic emission diagnosis test device has the advantages and positive effects that:
1. as the wind power blade 2 is larger and the loading is more and more difficult, the loading simulation of the full size can be realized by introducing the load loading vehicle 5.
2. The test detection device can conveniently carry out internal defect acoustic emission detection on the wind power blade 2, and ensures the quality of the wind power blade 2.
3. The test detection device has strong adaptability and can meet the defect detection of the wind power blades 2 of different sizes.
4. The universal moving load loading vehicle 4 can be used singly or together to simulate different load modes, and can simulate the load of the wind power blade 2 in the actual operation process more truly.
It should be understood by those of ordinary skill in the art that the specific constructions and processes illustrated in the foregoing detailed description are exemplary only, and are not limiting. Furthermore, the various features shown above can be combined in various possible ways to form new solutions, or other modifications, by a person skilled in the art, all falling within the scope of the present invention.
Claims (10)
1. A wind power composite material blade defect acoustic emission diagnosis test device is used for performing defect diagnosis tests on wind power blades and is characterized by comprising a fixed table, an acoustic emission sensor, an acoustic emission detector, a load loading vehicle and an acoustic emission signal analysis system, wherein when the wind power blades are tested, blade roots are fixed on the fixed table, the blades are arranged on the load loading vehicle, the acoustic emission sensor is arranged on the blades, the acoustic emission detector is arranged close to the blades, the acoustic emission signal analysis system is in communication connection with the acoustic emission detector, the load loading vehicle applies loads to the blades, the acoustic emission sensor collects acoustic emission signals generated after the blades are stressed and transmits the acoustic emission signals to the acoustic emission detector, the acoustic emission detector processes the acoustic emission signals and then transmits the acoustic emission signals to the acoustic emission signal analysis system, and the acoustic emission signal analysis system analyzes and processes the signal sent by the acoustic emission detector, and analyzes whether the interior of the wind power blade has structural defects and the positions of the defects.
2. The wind power composite material blade defect acoustic emission diagnosis test device of claim 1, wherein the fixing table comprises a base and a nesting table, the base is fixedly arranged, the nesting table is arranged on the base, a nesting hole is arranged on the nesting table, and the nesting hole is connected with the wind power blade through a blade root bolt.
3. The wind power composite blade defect acoustic emission diagnostic test device of claim 2, wherein the nesting table is mounted on the base by a first lifting mechanism.
4. The wind power composite material blade defect acoustic emission diagnosis test device of claim 1, wherein the number of the acoustic emission sensors is one, or the number of the acoustic emission sensors is more than two, and the acoustic emission sensors are arranged on the blade at intervals.
5. The wind power composite blade defect acoustic emission diagnostic test device of claim 4, wherein the acoustic emission sensor frequency range is 20-400 KHZ.
6. The wind power composite blade defect acoustic emission diagnosis test device of claim 1, wherein the load applied by the load loading vehicle comprises any one or a combination of any of the following: tension, pressure, bending moment, torque, swing.
7. The wind-power composite material blade defect acoustic emission diagnosis test device of claim 6, wherein the number of the load loading vehicles is one, or the number of the load loading vehicles is more than two.
8. The wind power composite material blade defect acoustic emission diagnosis test device of claim 6 or 7, wherein the load loading vehicle comprises a chassis and a loading ring, universal wheels are installed at the bottom of the chassis, and the loading ring is installed on the chassis and sleeved with the blade.
9. The wind-power composite blade defect acoustic emission diagnostic test apparatus of claim 8, wherein the loading ring is mounted on the chassis by a second lifting mechanism.
10. The wind power composite material blade defect acoustic emission diagnosis test device of claim 1, wherein the acoustic emission signal analysis system analyzes the type of the defect of the wind power blade and the position of the defect according to the signal sent by the acoustic emission detector.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111663124.4A CN114483481A (en) | 2021-12-31 | 2021-12-31 | Wind power composite material blade defect acoustic emission diagnosis test device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111663124.4A CN114483481A (en) | 2021-12-31 | 2021-12-31 | Wind power composite material blade defect acoustic emission diagnosis test device |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202710300U (en) * | 2012-08-03 | 2013-01-30 | 连云港中复连众复合材料集团有限公司 | Full-scale structure fatigue test apparatus for megawatt-level wind turbine blade |
| CN102998371A (en) * | 2012-12-17 | 2013-03-27 | 中联重科股份有限公司 | System and method for detecting defect of crane jib |
| WO2016101953A1 (en) * | 2014-12-23 | 2016-06-30 | Vestas Wind Systems A/S | Method, device and system for assessing bonds between components in a wind turbine blade |
| CN109443721A (en) * | 2018-11-12 | 2019-03-08 | 兰州理工大学 | Machinery loading device for wind electricity blade biaxial fatigue test |
| CN109737015A (en) * | 2019-01-23 | 2019-05-10 | 内蒙古工业大学 | Trunnion axis wind machine's laminae made from composite material mechanical property tests test device |
| CN111795899A (en) * | 2020-07-30 | 2020-10-20 | 上海电气风电集团股份有限公司 | Torsion loading equipment and blade torsion testing method |
| CN113820392A (en) * | 2021-08-20 | 2021-12-21 | 北京工业大学 | Acoustic emission detection method for fatigue damage of ceramic matrix composite |
-
2021
- 2021-12-31 CN CN202111663124.4A patent/CN114483481A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202710300U (en) * | 2012-08-03 | 2013-01-30 | 连云港中复连众复合材料集团有限公司 | Full-scale structure fatigue test apparatus for megawatt-level wind turbine blade |
| CN102998371A (en) * | 2012-12-17 | 2013-03-27 | 中联重科股份有限公司 | System and method for detecting defect of crane jib |
| WO2016101953A1 (en) * | 2014-12-23 | 2016-06-30 | Vestas Wind Systems A/S | Method, device and system for assessing bonds between components in a wind turbine blade |
| CN109443721A (en) * | 2018-11-12 | 2019-03-08 | 兰州理工大学 | Machinery loading device for wind electricity blade biaxial fatigue test |
| CN109737015A (en) * | 2019-01-23 | 2019-05-10 | 内蒙古工业大学 | Trunnion axis wind machine's laminae made from composite material mechanical property tests test device |
| CN111795899A (en) * | 2020-07-30 | 2020-10-20 | 上海电气风电集团股份有限公司 | Torsion loading equipment and blade torsion testing method |
| CN113820392A (en) * | 2021-08-20 | 2021-12-21 | 北京工业大学 | Acoustic emission detection method for fatigue damage of ceramic matrix composite |
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