Unlock instant, AI-driven research and patent intelligence for your innovation.

Pipeline active and passive vibration control device

A technology of active and passive control devices, applied in the direction of pipe components, shock absorbers, vibration suppression adjustment, etc., to achieve reliable vibration reduction effect, sensitive response, and easy installation

Pending Publication Date: 2021-05-28
YANTAI UNIV
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the vibration control problem of the current aviation hydraulic pipeline system, the present invention provides an active-passive composite vibration control device with symmetrical structure, large operating power, wide frequency domain and reliable vibration reduction effect in three-dimensional directions

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Pipeline active and passive vibration control device
  • Pipeline active and passive vibration control device
  • Pipeline active and passive vibration control device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0024] Such as Figure 1-3 As shown, a pipeline active and passive vibration control device includes pipeline 1, limit saddle 2, ring 3, slider 4, piezoelectric ceramic stack 5, compression bolt 6, damping spring 7,

[0025] The limit saddle 2 is installed along the circumferential direction of the pipeline 1, and the two ends of the piezoelectric ceramic stack 5 and the damping spring 7 are respectively installed with a limit saddle 2 and a slider 4, and the piezoelectric ceramic stack 5 and the damping spring 7 are installed al...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a pipeline active and passive vibration control device. The device comprises a pipeline, damping springs, limiting saddles, sliding blocks, piezoelectric ceramic stacks, compression bolts and a circular ring; the piezoelectric ceramic stacks and the damping springs are sequentially arranged in the circumferential direction of the pipeline at intervals and are extruded and fixed through the limiting saddles and the sliding blocks. The device has structural symmetry, can provide actuating force in different directions, and particularly has a very good suppression effect on vibration of a pipeline in a complex space, the piezoelectric ceramic stacks and the damping springs are compounded, active actuating and passive vibration reduction are combined, and a wide-frequency-domain vibration reduction effect is achieved; the piezoelectric ceramic stacks and the damping springs are surrounded by the circular ring, so that the whole device has larger acting force; the piezoelectric ceramic stacks and the damping springs can independently control vibration and can also coordinate and cooperate to jointly control vibration, and the self-adaptive capacity is high.

Description

technical field [0001] The invention relates to an active and passive vibration control device for pipelines, in particular to an active and passive vibration control device for pipelines combined with piezoelectric ceramic stacks and damping springs, belonging to the field of vibration and noise control of aviation hydraulic pipeline systems. Background technique [0002] The aviation hydraulic pipeline system generally starts from the transmission device of the casing near the aeroengine, connects the hydraulic oil pump and the actuating device, and is an important electromechanical system to realize various operating tasks of the airframe. The hydraulic pipeline system has special structural characteristics. Generally, the pipeline is long, has many bends, and has a complex structure. Due to limited space, it needs to be fixed along the aircraft wall. The pressure pulsation impact load generated by the aviation hydraulic pump causes the pipeline system to vibrate strongly...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): F16L55/035F16L55/04F16F15/00F16F15/067
CPCF16F15/002F16F15/007F16F15/067F16F2224/0283F16F2238/026F16L55/035F16L55/041
Inventor 高培鑫荣卫冲张源麟刘学峰于涛翟敬宇黄照华韩清凯
Owner YANTAI UNIV