An active vibration absorption device suitable for pipeline systems of different diameters with nylon belts fastened

Abstract

The invention aims at providing an initiative shock absorption device which adopts a nylon belt for fastening connection and is suitable for pipeline systems with different pipe diameters. The initiative shock absorption device comprises a first inertia electromagnetic actuator, a second inertia electromagnetic actuator and a linear guide rail. The first inertia electromagnetic actuator comprisesa first boss foundation, a second boss foundation, a cylinder body and a center shaft. The second inertia electromagnetic actuator and the first inertia electromagnetic actuator are the same in structure, and the second inertia electromagnetic actuator is arranged on the opposite side of the linear guide rail relative to the first inertia electromagnetic actuator. The initiative shock absorption device has the beneficial effects that the structure is simple, the adaptability is high, and mounting and demounting are simple; and the initiative shock absorption device is particularly suitable forthe condition that vibration control needs to be conducted over the pipelines with different pipe diameters, a pipe clamp structure does not need to be machined again, and only the relative positionsof the actuators need to be adjusted. In engineering application, the nylon belt bonding connection installation manner used in the device is very convenient and is particularly suitable for the condition that a rigid clamp is not conveniently installed on the pipelines or is not allowed to be installed on the pipelines.

Description

technical field [0001] The invention relates to a damping device, in particular to a pipeline damping device. Background technique [0002] As an important engineering structure, the pipeline system is not only widely used in many engineering fields such as marine engineering and nuclear industry, but also widely deployed on military and civilian ships. When the strong vibration of the pipeline system will cause loosening of the pipeline connection, or even fatigue fracture. For ships, the vibration and noise of the system will also affect the acoustic stealth performance of the ship, and at the same time affect the physical and mental health of the personnel on board. The vibration control of the pipeline system is mainly based on various forms of dynamic vibration absorption devices based on vibration absorption technology. [0003] Vibration absorption technology is a commonly used vibration reduction technology in the field of structural vibration control. Traditional ...

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Problems solved by technology

However, this structure can only achieve control on one degree of freedom, that is, it can only achieve effective control in a single direction, and cannot control the vibration in other radial directions of the pipeline.

[0005] The patent application number 201420609224.8 discloses a frequency-adjustable pipeline dynamic vibration absorber. The device actually adjusts the natural frequency of the vibration absorber by adjusting the position of the mass block, thereby realizing the function of frequency adjustment. There are four different Although the mass spring system in the same direction can realize radial vibration control, the device is still a passive dynamic vibration absorber in essence. Although it does not need to be connected to external energy and has high stability in the working process, it cannot realize automatic control of pipeline vibration. It is necessary to manually change the position of the mass block for each frequency adjustment, which is not convenient to use and operate

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