Self-elevating type offshore platform wind load coefficient test experimental system

A technology of load factor and test experiment, applied in aerodynamic test, test of machine/structural parts, measurement device, etc., can solve the problem of high cost of experiment and reduce the cost of experiment

Inactive Publication Date: 2015-10-28
OCEAN UNIV OF CHINA
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

my country currently lacks relevant on-site observation data of wind loads on offshore platforms. Although wind tunnel experiments are an effective means to determine wind loads on platforms, the cost of experiments is generally high, and they are not suitable for use in the initial stage of design.

Method used

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  • Self-elevating type offshore platform wind load coefficient test experimental system
  • Self-elevating type offshore platform wind load coefficient test experimental system

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Embodiment Construction

[0017] see figure 1 , figure 2 , the embodiment of the present invention provides an experimental system for testing the wind load coefficient of a self-elevating offshore platform, including:

[0018] Experimental platform, including simulated wind field channel, atmospheric boundary layer simulation device and wind flow generation device;

[0019] The simulated wind field channel includes a ventilation duct 1 and an ocean platform model 2 arranged in the ventilation duct 1; wherein, the simulated wind field channel also includes a bracket 3 fixedly arranged in the ventilation duct 1 and a bracket 3 for adjusting the sea level. The turntable 4 of the windward side angle of the platform model 2, the turntable 4 is installed on the support 3, the five-component force base balance 5 is installed on the turntable 4, and the offshore platform model 2 is installed on the five-component force base balance 5; in this embodiment The simulated air duct 1 adopts a square duct;

[00...

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Abstract

The invention discloses a self-elevating type offshore platform wind load coefficient test experimental system. The self-elevating type offshore platform wind load coefficient test experimental system comprises an experimental platform, a monitoring platform and a control platform, wherein the experimental platform comprises a simulated wind field channel, an atmospheric boundary layer simulation device and a wind flow generation device; the simulated wind field channel comprises a ventilation pipeline and an offshore platform model arranged inside the ventilation pipeline; the atmospheric boundary layer simulation device comprises a momentum loss device, a lateral mixing device and a ground roughness element; the wind flow generation device comprises an air blower and a flow guiding screen plate; the monitoring platform comprises a wind power, wind pressure and wind velocity signal acquisition and processing unit; and the control platform comprises an air blower control unit which is used for controlling output power of a motor of the air blower so as to product wind flows at different wind velocity gradients under the condition of different power, and a data acquisition and processing unit which is used for acquiring, processing, analyzing and displaying signals from the monitoring platform in real time.

Description

technical field [0001] The invention relates to wind load testing technology, in particular to an experimental system for testing wind load coefficient of a self-elevating offshore platform. Background technique [0002] In the complex and changeable marine natural environment, the jack-up offshore platform will be affected by the loads formed by wind, waves, ocean currents and sea ice. Among them, the wind load is the most important control load in structural design, and it accounts for all environmental loads. The largest proportion. The size of the wind load is directly related to the safety of the platform under working conditions. Under the action of wind load, the platform structure may yield damage due to excessive stress, and at the same time, the platform may suffer fatigue damage due to the dynamic alternating effect of wind load. Therefore, the accurate prediction of wind load is of great significance to the safety and economy of the platform. In order to ensure ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M9/00
Inventor 谢迎春钟本雷翟元壮陈鹏飞田晓洁刘贵杰
Owner OCEAN UNIV OF CHINA
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