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Offshore seismic environment wind tunnel simulating device

A simulation device and wind tunnel technology, which is applied in the field of offshore seismic environment wind tunnel simulation devices, can solve the problems such as the reliability and accuracy of numerical simulation methods are still in question, limit the development of numerical simulation methods, etc., to achieve stable airflow and wind speed, and easy generation. effective effect

Inactive Publication Date: 2018-01-19
CHONGQING JIAOTONG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, it is limited to numerical simulation analysis based on classical assumptions, which makes the reliability and accuracy of numerical simulation methods still to be discussed, and also limits the development of numerical simulation methods.

Method used

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  • Offshore seismic environment wind tunnel simulating device
  • Offshore seismic environment wind tunnel simulating device
  • Offshore seismic environment wind tunnel simulating device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Such as Figure 1~3 , a wind tunnel simulation device for marine seismic environment, comprising a wind generating section 1 and a testing section 2 connected to each other, the wind generating section 1 is provided with a fan 11; the testing section 2 is divided into a clearance layer 21 from top to bottom , seawater layer 22 and sea mud layer 23; Described clearance layer 21 is communicated with wind generation section 1; Described seawater layer 22 is provided with wave generator 24 at the entrance side wall of test section; Described sea mud layer 23 bottom is provided with A vibration generator 25 connected to the test model 10. Among them, the seawater layer and sea mud layer are taken from the original samples of seawater and sea mud, of course, they can also be artificially mixed water samples and soil samples.

[0033] When in use, the bottom of the test model 10, which is similar in shape to an offshore drilling platform, is placed in the middle of the sea mu...

Embodiment 2

[0043] Such as Figure 4, the difference from Embodiment 1 is that the wave generator 24 used in this embodiment includes a sleeve 243, a piston 244 and a crank rocker mechanism II245 that can drive the piston to make periodic push-pull movements in the sleeve. The lever mechanism II is driven by a servo motor. The crank-rocker mechanism II includes a first transmission rod, a second transmission rod and a guide shaft hinged to each other. The guide shaft is vertically arranged, and the servo motor drives the first transmission rod to perform circular reciprocating motion, thereby driving the second transmission rod and its activities. The hinged piston makes a periodic push-pull movement on a vertically arranged sleeve. As long as the water can be disturbed periodically, waves can be formed. Therefore, it is feasible to combine the crank-rocker mechanism adopted in this embodiment with the wave-making board.

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Abstract

The invention discloses an offshore seismic environment wind tunnel simulating device. The offshore seismic environment wind tunnel simulating device is applied to the field of environment wind tunnelsimulating devices. The offshore seismic environment wind tunnel simulating device comprises a wind power generation section and a testing section, wherein the wind power generation section and the testing section communicate with each other; a testing model is placed in the testing section; the testing section is divided into a clearance layer, a seawater layer and a sea mud layer from top to bottom; the clearance layer communicates with the wind power generation section; the seawater layer is provided with a sea wave generator on a side wall of an inlet of the testing section; and a vibration generator which is connected with the testing model is arranged at the bottom of the sea mud layer. The invention mainly solves the problems that an existing wind tunnel experimental device for anenvironment is lack of a wind tunnel device capable of simulating offshore seismic and a wind wave environment along with the offshore seismic, and it is limited to numerical simulation analysis basedon classical assumption at present. By the offshore seismic environment wind tunnel simulating device, influence of the offshore seismic and the wind wave environment conditions along with the offshore seismic to an offshore drilling platform is researched in a simulated manner, so that a reasonable offshore seismic resistant design is proposed, the safety of the offshore drilling platform in anoffshore seismic environment is improved, and the offshore seismic environment wind tunnel simulating device has great practical significance and theoretical research value.

Description

technical field [0001] The invention belongs to the field of environmental wind tunnel simulation devices, and in particular relates to a marine earthquake environmental wind tunnel simulation device. Background technique [0002] With the deepening of human development and utilization of oil and gas resources, oil and gas exploration and development have shifted from land to sea. Therefore, drilling engineering operations must also be carried out in the vast ocean. When carrying out oil and gas drilling construction at sea, the drilling rig weighing hundreds of tons must have enough support and space, and at the same time, there must be a place for the drilling personnel to live and live. Offshore oil drilling platforms have taken on this important task. Due to the changeable offshore climate, the invasion and damage of offshore wind waves and even earthquakes, the stability and safety of offshore drilling platforms are more important. [0003] The current wind tunnel exp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M9/02
Inventor 王旭李华强陈增顺周霄
Owner CHONGQING JIAOTONG UNIVERSITY
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