Pier active collision avoidance device based on impact hydrodynamic force

Abstract

The invention discloses a pier active collision avoidance device based on impact hydrodynamic force. The pier active collision avoidance device is composed of a fixing frame, a floating inner ring, afloating block and a rotary spraying cavity. The floating inner ring, the floating block and the rotary spraying cavity is floated on the water surface in a semi-floating manner, and can float up anddown along the fixing frame so as to adapt to the change of the water level. The rotary spraying cavity is configured to be a plurality of independent convex cavities defined by annular inner walls and rubber outer walls; sprayers are arranged at the bottoms of the cavities, and water flow can freely flow in and out, accumulated water in the cavity is extruded and sprayed out to impact bottom blades during impact, so that the rotary spraying cavity rotates to make the ship impact direction changed in time, a ship can be seperated from the pier as soon as possible, and the active collision avoidance effect is achieved. The device can effectively utilize the impact energy of the ship, convert the impact energy into rotating kinetic energy, actively and timely guide the ship to change the movement direction and reduce the impact energy input; meanwhile, the rotary spraying cavity adopts a rubber outer wall, so that the impact time can be effectively delayed, and the impact force is reduced; and automatic elastic reset can be achieved, repeated collision avoidance is achieved, and replacement and maintenance are not needed.

Description

technical field [0001] The invention relates to an active collision avoidance device for bridge piers based on collision hydrodynamic force, and belongs to the field of collision prevention and disaster reduction for ships with bridge pier structures. Background technique [0002] With the rapid development of economy and transportation in recent years, more and more bridge projects have been erected on the waterway, making the original waterway narrow. At the same time, there are more and more ships and other means of transportation on the waterway. The tonnage is also increasing, and due to factors such as harsh environments and fatigue driving, accidents of ships and other collisions with bridges often occur. Ship collision will not only cause damage to the ship, but also damage to the bridge structure, and even cause the bridge structure to collapse, causing serious economic and social impacts. Therefore, in order to ensure the safety of ships and bridges, it is necessa...

AI Technical Summary

Problems solved by technology

Ship collision will not only cause damage to the ship, but also damage to the bridge structure, and even cause the bridge structure to collapse, causing serious economic and social impacts

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