Phase change temperature control fluid damper

Abstract

The invention relates to a phase change temperature control fluid damper, belongs to the technical field of damper heat dissipation, and solves the problems existing in a current fluid damper. The phase change temperature control fluid damper comprises a fluid damper body, wherein the fluid damper body comprises a cylinder, a piston head, piston rods, sealing bodies and end covers. The piston headis arranged in the cylinder, the piston rods are arranged on both sides of the piston head, the sealing bodies are arranged between the piston rods on both sides of the piston head and the cylinder,and the two ends of the cylinder are sealed by the end covers. The end covers are connected with the cylinder in a threaded mode, and locking nuts are arranged on the end covers. A storage material cavity is arranged in each end cover, one side of the corresponding sealing body of each storage material cavity of each end cover is opened, phase change energy storage material is poured into the storage material cavities, and the end covers are connected with the cylinder in a sealed mode to avoid leakage in the liquid state. The phase change temperature controlled fluid damper is used for reducing vibration of a building.

Description

technical field [0001] The invention belongs to the technical field of damper heat dissipation, and in particular relates to a phase change temperature control fluid damper. Background technique [0002] The fluid damper achieves the purpose of structural vibration reduction and energy consumption by outputting fixed or adjustable viscous damping force. It has the advantages of high response speed, large control range and large damping force output. It is very suitable for building structure vibration reduction and bridge vibration reduction. At present, it has been widely used in vibration reduction of buildings and bridges; fluids include viscous fluids and magnetic fluids; among them, viscous fluid dampers are used in passive control systems, and magnetic fluid dampers are used in In the semi-active control system; due to the long-term vibration and energy consumption of the fluid damper during work, heat accumulation and structural temperature rise will occur, which will...

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Problems solved by technology

[0002] The fluid damper achieves the purpose of structural vibration reduction and energy consumption by outputting fixed or adjustable viscous damping force. It has the advantages of high response speed, large control range and large damping force output. It is very suitable for building structure vibration reduction and bridge vibration reduction. At present, it has been widely used in vibration reduction of buildings and bridges; fluids include viscous fluids and magnetic fluids; among them, viscous fluid dampers are used in passive control systems, and magnetic fluid dampers are used in In the semi-active control system; due to the long-term vibration and energy consumption of the fluid damper during work, heat accumulation and structural temperature rise will occur, which will cause the fluid to expand when heated, damage the seal, and also cause the output damping force to continue to decline, seriously reducing the damper. Safety and reliability limit the application of fluid dampers in high-precision and high-stability control occasions; in order to ensure the reliability of the damper and enable it to be used in conditions requiring high control accuracy and high stability, necessary measures must be taken. temperature control measures;

[0003] At present, some of the existing damper heat dissipation technologies are to process the channel inside the piston, and connect the channel with the external pipe through the method of opening a hole in the piston rod; some add cooling fins to the wall of the damper cylinder or add The ventilation device strengthens the heat dissipation of the structure; the existing problem is that the piston structure is the core structure of energy consumption and vibration reduction, the processing channel in the piston will seriously weaken the mechanical properties of the piston rod and the piston head, and the direct contact of the fluid with the inner surface of the piston will increase the structure. The risk of corrosion will seriously affect the safety and stability of the damper; adding fins to the cylinder wall or adding a ventilation device at the tail will cause problems such as increased damper structure volume, poor heat dissipation, high cost, and difficult maintenance

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