Blunt body flow-induced vibration testing device and method for active rotation of annular water tank

By designing a blunt body flow-induced vibration test device with active rotation of the annular sink, the existing test platform has solved the problem of large land and high energy consumption, and achieved efficient and accurate blunt body flow-induced vibration test.

CN119688235APending Publication Date: 2025-03-25SOUTHWEST PETROLEUM UNIV
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Patent Information

Application Number
CN202510157437.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-02-13
Publication Date
2025-03-25

AI Technical Summary

Technical Problem

The existing blunt body flow-induced vibration testing platform covers a large area, has high energy consumption and high cost, making it difficult to quickly and efficiently carry out flow-induced vibration testing evaluation and safe verification of engineering structures.

Method used

A blunt body flow-induced vibration test device for active rotation of the annular sink is designed, including a support system, a rotation system and a test system. The fluid movement speed is adjusted through the active rotation of the annular sink. Combined with an acoustic Doppler flow meter, laser displacement sensor and high-speed camera, the blunt body flow-induced vibration test is realized.

Benefits of technology

Experimental testing of blunt body flow-induced vibration under different flow parameters is realized, reducing the energy consumption and footprint of the equipment, and improving the efficiency and accuracy of the test.

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Abstract

The invention relates to a bluff body flow-induced vibration testing device and method for active rotation of an annular water tank. The device is composed of a supporting system, a rotating system and a testing system. The control terminal adjusts the rotating speed of the motor to change the flow velocity of fluid in the transparent annular water tank, the transverse position of the acoustic Doppler current meter is changed by controlling the transverse rolling of the electric wheel, and the vertical position of the acoustic Doppler current meter is adjusted by controlling the telescopic length of the telescopic rod, so that the flow velocity distribution in the transparent annular water tank is measured. Vortex-induced vibration testing of different engineering structures is achieved by replacing bluff body models of different shapes, flow field evolution and vibration displacement of the bluff body models are synchronously collected through a laser displacement sensor and a high-speed camera, and the testing device and method are provided for flow-induced vibration testing evaluation and safety checking of ocean engineering structures.
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