Multi-degree-of-freedom cyclic loading device for indoor test research of offshore wind turbine foundation

An indoor test and cyclic loading technology, which is applied in the test of basic structure, basic structure engineering, construction, etc., can solve the problems of limited, unsatisfactory test control effect, complicated control device, etc., and achieve accurate load control, high practicability and The effect of economy and simple design principle

Active Publication Date: 2018-05-01
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, domestic and foreign studies on the cyclic response of offshore wind turbine foundations under multi-degree-of-freedom are very limited, and most of the only studies have very complicated control devices, and the test control effect is not ideal.

Method used

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  • Multi-degree-of-freedom cyclic loading device for indoor test research of offshore wind turbine foundation
  • Multi-degree-of-freedom cyclic loading device for indoor test research of offshore wind turbine foundation
  • Multi-degree-of-freedom cyclic loading device for indoor test research of offshore wind turbine foundation

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Embodiment Construction

[0015] Such as figure 1 with 2 As shown, the present invention is a multi-degree-of-freedom cyclic loading device for indoor test research on offshore fan foundations, including a circular model box 1, a steel frame 2, a first fixed pulley 31, a second fixed pulley 32, and a third fixed pulley 12. Flange 11, first stage 51, second stage 52, third stage 53, moving pulley 6, spring base 7, cycle stepper motor 8, control base 9, first steel Stranded wire 41, the second steel strand 42, the third steel strand 43;

[0016] The steel frame is bolted to the top of the circular model box. In the figure, there are 12 screw holes evenly opened on the top of the circular model box 1, and the steel frame 2 is connected to the two screw holes on the top of the circular model box 1 by bolts. , by changing the threaded position connected between the steel frame 2 and the circular model box 1, cyclic loading in any direction of 360° can be realized; the first fixed pulley 31 and the second ...

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Abstract

The invention discloses a multi-degree-of-freedom cyclic loading device for a laboratory test study of an offshore wind turbine foundation. According to the device, a pulley system is composed of a movable pulley and a fixed pulley, and is combined with a cyclic stepper motor, a spring base, a specially-designed model box, a steel frame and a flange disc, and cyclic loading in any period and any manner can be realized through controlling a moving distance and a moving speed of the cyclic stepper motor. In addition, cyclic loading at any angle can be realized through changing a connection position of the steel frame and the model box, rotating the flange disc, and using universal wheels to control the bottom of the base. The device disclosed by the invention is easy to machine and assemble, high in economical efficiency and practicability, and capable of being applied to the laboratory model test study of the offshore wind turbine foundation.

Description

technical field [0001] The invention relates to the technical field of a multi-degree-of-freedom cyclic loading device for indoor testing of offshore fan foundations, in particular to a multi-degree-of-freedom cyclic loading device for indoor test research on offshore fan foundations. Background technique [0002] Compared with traditional energy sources, wind energy is a clean and renewable energy source with no fuel risk, stable power generation costs, and no environmental costs such as carbon emissions. It can be connected to the grid or run independently off the grid. Compared with onshore wind power, offshore wind power has the advantages of large resource reserves, high wind speed, low wind shear, low turbulence, low environmental noise pollution and does not occupy arable land, and has become the focus of wind power development in recent years. my country's offshore wind energy resources are very rich, estimated to reach 750 million kilowatts, which is three times tha...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02D33/00
CPCE02D33/00
Inventor 王欢童建国王立忠龚健余智恩方伟定乔冠铭
Owner ZHEJIANG UNIV
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