A multifunctional conversion device for wind tunnel test of floating offshore platform structure and its application method

Abstract

The invention discloses a multifunctional conversion device for a floating offshore platform structure wind tunnel test and a use method thereof. The device comprises a bottom groove supporting pedestal for fixing the whole device and a supporting sliding plate, an L-shaped sliding plate, a lifting sliding block, an inclination block, a pitch disc, and a wind direction tray. The L-shaped sliding plate is used for fixing and supporting the lifting sliding block and providing a sliding rail for the lifting sliding block and the horizontal sliding block at the same time. The lifting sliding blockcan move up and down to realize different immersion depths of the model and a support is provided for accessories for changing the wind direction angle and the wind attack angle of the model. The inclination block, with an inclined cushion block, is used for realizing a pitching angle of the pitch disc and the pitch disc is fixed by the inclination block and a jacking block. The pitch disc is used for realizing inclination of the model and realizing different wind attack angles. The wind direction tray is fixed to the pitch disc and the wind direction tray is fixed through different wind direction holes to rotate in the pitching disc face to realize different wind direction angles. Therefore, the possible postures of the model in actual engineering can be realized; lifting of the model can correspond to different draft depths of the model in the actual engineering; and the cost is low, the mounting or dismounting becomes convenient, and the device can be repeatedly recycled.

Description

technical field [0001] The invention belongs to the technical field of wind tunnel test equipment for offshore platform structures, and relates to a conversion device for combining different wind direction angles, wind attack angles and drafts in wind tunnel tests for floating offshore platform structures and a use method thereof. Background technique [0002] The floating offshore platform structure is under the action of wind, and its force is relatively small compared with the wave load, but because of the large distance between the point of action and the water plane, a large overturning moment is generated, which has an important impact on the stability of the platform. In order to provide reliable wind loads for floating offshore platform structures, it is often necessary to determine wind loads through wind tunnel tests. Regardless of whether the floating platform structure is in the towed condition or the in-position condition, it may be affected by wind in any direc...

AI Technical Summary

Problems solved by technology

[0002] When the floating offshore platform structure is under the action of wind, its force is relatively small compared to the wave load, but due to the large distance between the point of action and the water plane, a large overturning moment is generated, which has an important impact on the stability of the platform

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