PL411226A1 - Method and test-stand for the model testing of elastic properties of the column supporting structures, of a wind turbine mast - Google Patents
Method and test-stand for the model testing of elastic properties of the column supporting structures, of a wind turbine mastInfo
- Publication number
- PL411226A1 PL411226A1 PL411226A PL41122615A PL411226A1 PL 411226 A1 PL411226 A1 PL 411226A1 PL 411226 A PL411226 A PL 411226A PL 41122615 A PL41122615 A PL 41122615A PL 411226 A1 PL411226 A1 PL 411226A1
- Authority
- PL
- Poland
- Prior art keywords
- pole
- column
- vibration
- mass
- stand
- Prior art date
Links
- 238000000034 method Methods 0.000 title abstract 2
- 238000013016 damping Methods 0.000 abstract 4
- 239000006096 absorbing agent Substances 0.000 abstract 2
- 238000005259 measurement Methods 0.000 abstract 2
- 238000006073 displacement reaction Methods 0.000 abstract 1
- 230000000638 stimulation Effects 0.000 abstract 1
Landscapes
- Wind Motors (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
Sposób polega na siłowym pobudzeniu drgań w dowolnie wybranym przekroju poprzecznym słupa sztywno utwierdzonego dolnym końcem w podłożu oraz wykonaniu pomiarów czujnikami przemieszczeń i drgań w przekroju wymuszającym oraz w wybranych punktach słupa. Badania prowadzi się przy obciążeniu górnego końca słupa masą równoważną masie podpieranej słupem - przykładowo gondoli generatorowej - w warunkach tłumienia drgań górnego końca słupa przez masowy absorber energii, którego siła tłumienia jest zmienna w czasie rzeczywistym według zadanego oprogramowania elektronicznej jednostki analizującej na podstawie danych z czujników pomiarowych. Stanowisko zawiera ramę fundamentową (4) z elementami utwierdzenia (2, 3) dolnego końca słupa (1) i zespół wymuszania drgań (Zd) sztywno połączony przez uchwyt ze słupem (1). Ponadto wyposażone jest w czujniki pomiarowe połączone z elektroniczną jednostką analizującą. Na górnym końcu słupa (1) ma zamocowaną poziomą płytę platformy z zabudowanym na niej zestawem mas nieruchomych i zespołem tłumienia drgań (Zg), stanowiącym masowy absorber energii, który złożony jest z zestawu mas ruchomych (7), posadowionych na wózku (12) wodzonym po prowadnicach liniowych (14) w kierunku prostopadłym do osi słupa (1) i w płaszczyźnie drgań (O-O) zespołu wymuszania (Zd). Zespół tłumienia drgań (Zg) połączony jest z pionową płytą platformy (5) przez element sprężysty (8) i sterowany element tłumiący (9).The method involves force stimulation of vibrations in any selected cross-section of a column rigidly fixed by the bottom end in the ground and measurements of displacement and vibration sensors in the forcing section and in selected points of the column. The tests are carried out with a load on the upper end of the pole with a mass equivalent to the mass supported on the pole - for example, a generator nacelle - in conditions of suppressing vibrations of the upper end of the pole by a mass energy absorber, whose damping force is variable in real time according to the given software of the electronic analysis unit based on data from measurement sensors . The stand includes a foundation frame (4) with elements of restraint (2, 3) of the lower end of the pole (1) and a vibration force assembly (Zd) rigidly connected by a handle to the column (1). In addition, it is equipped with measuring sensors connected to an electronic analysis unit. At the upper end of the pole (1), it has a horizontal platform plate with a set of fixed masses and a vibration damping assembly (Zg) installed on it, constituting a mass energy absorber, which consists of a set of moving masses (7), mounted on a bogie (12) along linear guides (14) in a direction perpendicular to the axis of the column (1) and in the vibration plane (OO) of the forcing unit (Zd). The vibration damping assembly (Zg) is connected to the vertical platform plate (5) by a spring element (8) and a controlled damping element (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL411226A PL227628B1 (en) | 2015-02-10 | 2015-02-10 | Method and test-stand for the model testing of elastic properties of the column supporting structures, of a wind turbine mast |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL411226A PL227628B1 (en) | 2015-02-10 | 2015-02-10 | Method and test-stand for the model testing of elastic properties of the column supporting structures, of a wind turbine mast |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| PL411226A1 true PL411226A1 (en) | 2016-08-16 |
| PL227628B1 PL227628B1 (en) | 2018-01-31 |
Family
ID=56617338
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PL411226A PL227628B1 (en) | 2015-02-10 | 2015-02-10 | Method and test-stand for the model testing of elastic properties of the column supporting structures, of a wind turbine mast |
Country Status (1)
| Country | Link |
|---|---|
| PL (1) | PL227628B1 (en) |
-
2015
- 2015-02-10 PL PL411226A patent/PL227628B1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| PL227628B1 (en) | 2018-01-31 |
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