Experimental system achieving coupling effect of wind, waves and rain

Abstract

The invention discloses an experimental system achieving the coupling effect of wind, waves and rain. The experimental system comprises an annular water groove and a wind tunnel, the wind tunnel is mainly composed of a tunnel body, a driving system and a measurement control system, a linear experimental section is arranged in the annular water groove and sleeved with the tunnel body, the driving system is arranged in the linear experimental section and located at one end of the tunnel body, a rainfall system is arranged at the top of the tunnel body, and the annular water groove is communicated with the rainfall system at the top of the tunnel body through a water conveying pipeline and supplies water to the rainfall system. The system is a small wind, rain and wave environment simulated scene, represents the coupling process of the wind, the waves and the rain, achieves a dynamic response of an ocean / river engineering structure under the effect of extreme waves, strong-wind loads andrainstorm, and discloses the physical mechanism of instability of the ocean / river engineering structure through response test and research; the detection requirement for the dynamic response of the ocean engineering structure under the combined effect of the wind, the waves and the rain is met, and the adaptability limit of an existing experimental device is eliminated.

Description

technical field [0001] The invention belongs to the field of wind tunnels, and in particular relates to an experimental system for realizing the coupled effects of wind, waves and rain. Background technique [0002] Waves, strong winds, and heavy rain are the main external loads on bridges or oil platforms in sea areas. Taking bridges as an example, wind can cause various hazards to bridges. Wind-induced vibrations on bridge decks can cause people to lose their sense of security, and even stop traffic in severe cases. With the accumulation of time, the bridge structure may be fatigued and damaged in advance, and the most serious is the tragedy of bridge destruction. The current bridge wind engineering mainly studies the static effects and dynamic responses of bridge structures under different wind field conditions. However, for long-span bridges across seas and rivers, the influence of wind on bridges is not simply the force of wind on the structure and the dynamic respons...

AI Technical Summary

Problems solved by technology

With the accumulation of time, the bridge structure may be fatigued and damaged in advance, and the most serious is the tragedy of bridge destruction

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