Connecting structure and connecting method of pipeline and damping assembly and control system
A technology for vibration reduction components and connection structures, which is applied in the direction of pipe elements, pipes/pipe joints/pipe fittings, ship parts, etc., which can solve the problems of not meeting the vibration and noise reduction requirements of the pipeline system and the weakening of the vibration reduction ability of the pipeline system. , to achieve the effect of good vibration reduction performance, good vibration reduction effect and simple method
Pending Publication Date: 2020-02-04
YANTAI UNIV
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Problems solved by technology
However, with the development of the pipeline system, the active or passive control technology of a single frequency band is gradually unable to meet the vibration and noise reduction requirements of the pipeline system; The vibration damping ability of the vibration device to the pipeline system is also weakened
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[0028] The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.
[0029] like Figure 1-Figure 2 As shown, a connection structure between a pipeline and a vibration-damping assembly, the vibration-damping assembly includes a vibration-damping module and a support module, the vibration-damping module includes a piezoelectric ceramic part and an air bag, and the piezoelectric ceramic part includes at least 2 and uniformly distributed along the outer wall of the pipeline, the airbag and the piezoelectric ceramic part are arranged at intervals; the support module includes two hoops, and the two hoops tighten the airbag and the piezoelectric ceramic part. Piezoelectric ceramic parts.
[0030] The support module also includes a support, and the hoop includes a semi-arc-shaped hoop and ...
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The invention relates to a connecting structure of a pipeline and a damping assembly. The damping assembly comprises a damping module and a support module; the damping module comprises a piezoelectricceramic piece and an air sac; the air sac and the piezoelectric ceramic piece are arranged at an interval in the circumferential direction of the pipeline; the support module comprises two hoops, twohoop hooping air sacs and the piezoelectric ceramic piece; the invention further relates to a connecting method of the connecting structure of the pipeline and the damping assembly; the connecting method comprises the steps of mounting the piezoelectric ceramic pieces, the air sacs, filling the air in the air sacs and fastening the damping module; the invention further relates to a control systemof the damping assembly; the connecting structure of the damping assembly and the pipeline comprises a piezoelectric sensor, a vibration active controller, a voltage amplifier and the piezoelectric ceramic pieces; the piezoelectric sensor is attached to the pipeline and is connected with the vibration active controller; the vibration active controller is connected with the voltage amplifier; andthe voltage amplifier is connected with the piezoelectric ceramic pieces. The connecting structure combines initiative with passiveness, is excellent in damping effect, large in acting force, wide inused frequency domain and high in self-adaptive ability.
Description
technical field [0001] The invention relates to a connection structure, a connection method and a control system of a pipeline and a vibration damping component, and belongs to the field of vibration and noise control of a ship pipeline system. Background technique [0002] The pipeline system plays an important role in the operation of the ship, and vibration will inevitably occur during the working process. On the one hand, the pipeline system is connected with the power equipment, and the vibration of the power equipment is transmitted to the pipeline system; on the other hand , the pressure pulsation of the fluid in the pipe and the eddy current resonance of the fluid in the pipe will also cause the vibration of the piping system. Strong vibration will lead to loosening of pipeline connections, fatigue wear and even fracture of pipelines, which will not only affect the overall performance of the ship, greatly affect the acoustic performance of the ship, reduce the stealt...
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IPC IPC(8): B63B17/00F16L55/035
CPCB63B17/0081F16L55/035
Inventor 高培鑫荣卫冲于涛张源麟王娇曲虹全
Owner YANTAI UNIV
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