Integrated multidirectional loading model test device for offshore wind turbine

Abstract

The invention relates to an offshore wind turbine integrated multidirectional loading model test device which comprises a water tank, a wave making mechanism is arranged at one end in the water tank, a top cover is arranged at the top of the water tank to form an air duct, one end of the top cover serves as an air inlet end, a wind turbine is arranged at the other end of the top cover, and a seabed soil body tank is arranged at the set position of the bottom of the water tank. A rotating disc is arranged at the bottom end in the seabed soil body groove, a model barrel used for containing seabed soil and an offshore wind turbine model is fixed to the rotating disc, and the rotating disc is connected with a driving mechanism to drive the model barrel to rotate, so that the model barrel and the fixedly-arranged water tank generate relative motion, and wind wave loads in different directions are applied to the offshore wind turbine model. By the adoption of the test device, wind wave loads in different directions applied to the offshore wind turbine model can be simulated.

Description

technical field [0001] The invention relates to the technical field of test equipment, in particular to an integrated multi-directional loading model test device for an offshore wind turbine. Background technique [0002] The statements herein merely provide background related to the present invention and do not necessarily constitute prior art. [0003] Vigorously developing new renewable energy is an important way to solve the energy shortage and environmental sustainable development. Offshore wind power is rich in resources, stable in wind speed, saves land, has little environmental noise restriction, and is suitable for large-scale development. It is an important measure to adjust the power structure and reduce dependence on fossil energy. [0004] For large flexible wind turbine blades, they vibrate and deform under the action of wind, wave and current, and the upper load is transmitted to the seabed rock and soil through the foundation. The weakening of the bearing c...

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Problems solved by technology

[0005]However, the inventor found that the existing safety analysis method for offshore wind turbines tests the upper wind turbine structure and the lower foundation independently, and simplifies the wind wave current load as a horizontal force applied to the wind turbine structure, it is impossible to consider the characteristics of fluid load changes in time and space, and it is also unable to consider the interaction and mutual feedback coupling mechanism between offshore wind turbines and the complex external environment (wind waves and seabed geology); During the test, the direction of the wind and waves cannot be changed, and only a single load condition can be considered, which is quite different from the actual marine environment; for the test of a deep-water pool-type offshore wind turbine, matrix fans are set around to simulate multi-directional wind loads, but the cost is expensive and The wind speed is difficult to stabilize

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