A two-dimensional magnetorheological damping tube clamp

Abstract

The invention discloses a two-dimension magnetorheological damping pipe clamp. Pistons are wound by electromagnetic coils respectively and are installed in a cylinder enclosed by upper covers, bases and a lower cover; a magnetorheological fluid is filled in an interval between the cylinder and each piston; an inner pipe clamp is fixed to a hydraulic transmission system pipeline; the lower end of the inner pipe clamp is connected with piston rods; the two sides of the inner pipe clamp are supported by springs respectively; when the pipeline vibrates, the inner pipe clamp vibrates along with the pipeline and drives the pistons to vibrate together; a controller detects information including vibration acceleration, frequency and amplitude by an acceleration sensor installed on the pipeline and regulates the strength of a magnetic field by changing the size of currents of the electromagnetic coils, so that the viscosity of the magnetorheological fluid is changed, the damping force applied to the pistons is dynamically regulated, and the vibration energy of the pipeline is consumed to the maximum. The two-dimension magnetorheological damping pipe clamp has a simple structure, is rapid in response speed, low in power consumption and high in reliability and is capable of improving the stability of work of a hydraulic system.

Description

technical field [0001] The invention relates to a vibration damping pipe clamp, in particular to a two-dimensional vibration damping pipe clamp with adjustable damping and stiffness, which is suitable for hydraulic transmission and liquid transportation pipeline systems, consumes pipeline vibration energy, and controls pipeline vibration. vibration. The invention can also be extended to the field of bearing vibration control. Background technique [0002] The hydraulic transmission system is widely used in various fields of the national economy, and is an important power supply system in the fields of aviation, aerospace, vehicles, ships and construction machinery. When the hydraulic transmission system is working, due to the movement of power machinery and the fluid pressure pulsation in the pipeline, etc., it usually causes severe vibration of the pipeline, and incidentally causes the vibration of the connecting pipeline or connecting device, thereby greatly reducing the ...

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Problems solved by technology

[0006] The invention designs a magneto-rheological damping and vibration-reduction structure in the pipe clamp, utilizes the characteristics of the damping and stiffness of the magnetorheological damper, and adjusts the damping and stiffness of the magnetorheological damper to the pipeline by changing the magnetic field strength of the damper. Vibration is controlled to maximize the consumption of pipeline vibration energy, greatly weaken the transmission of vibration in pipelines or connecting devices, reduce noise and mechanical wear caused by vibration, effectively suppress the fluid-solid coupling in the pipeline, and weaken the pipeline The pressure pulsation of the medium fluid; it overcomes the shortcomings of traditional passive shock absorbers such as large volume, fixed damping and rigidity, and the semi-active control system based on magnetorheology has low energy consumption, large output, fast response, simple structure, and high damping force. The characteristics of continuous adjustment and easy control overcome the disadvantages of high cost, high energy consumption and complex devices of the active control device, and can still maintain a certain damping force when the system loses power supply, functioning as a passive vibration reduction The device continues to work, and there will be no system crash accidents, with high safety and reliability; the height of the magneto-rheological damping pipe clamp is basically the same as that of the conventional pipe clamp, and can directly replace the traditional hydraulic transmission system or fluid delivery system. Pipe clamps, no need to rearrange the piping system

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