CN112856089A - Active and passive vibration control device for pipeline - Google Patents
Active and passive vibration control device for pipeline Download PDFInfo
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- CN112856089A CN112856089A CN202110258170.XA CN202110258170A CN112856089A CN 112856089 A CN112856089 A CN 112856089A CN 202110258170 A CN202110258170 A CN 202110258170A CN 112856089 A CN112856089 A CN 112856089A
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- pipeline
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- damping spring
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- 238000013016 damping Methods 0.000 claims abstract description 63
- 239000000919 ceramic Substances 0.000 claims abstract description 43
- 230000006835 compression Effects 0.000 claims abstract description 11
- 238000007906 compression Methods 0.000 claims abstract description 11
- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- 238000001125 extrusion Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 230000009471 action Effects 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 3
- 230000004044 response Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 5
- 230000002401 inhibitory effect Effects 0.000 abstract 1
- 230000009467 reduction Effects 0.000 description 5
- 230000008901 benefit Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 230000010349 pulsation Effects 0.000 description 2
- 230000001629 suppression Effects 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/02—Energy absorbers; Noise absorbers
- F16L55/033—Noise absorbers
- F16L55/035—Noise absorbers in the form of specially adapted hangers or supports
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/002—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion characterised by the control method or circuitry
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/005—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion using electro- or magnetostrictive actuation means
- F16F15/007—Piezoelectric elements being placed under pre-constraint, e.g. placed under compression
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
- F16F15/06—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs
- F16F15/067—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with metal springs using only wound springs
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/04—Devices damping pulsations or vibrations in fluids
- F16L55/041—Devices damping pulsations or vibrations in fluids specially adapted for preventing vibrations
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F2224/00—Materials; Material properties
- F16F2224/02—Materials; Material properties solids
- F16F2224/0283—Materials; Material properties solids piezoelectric; electro- or magnetostrictive
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F2238/00—Type of springs or dampers
- F16F2238/02—Springs
- F16F2238/026—Springs wound- or coil-like
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention discloses an active and passive vibration control device for a pipeline, which comprises a pipeline, a damping spring, a limiting saddle, a sliding block, a piezoelectric ceramic stack, a compression bolt and a circular ring, wherein the damping spring is arranged on the pipeline; the piezoelectric ceramic stack and the damping spring are sequentially arranged along the circumferential direction of the pipeline at intervals and are extruded and fixed by the limiting saddle and the sliding block. The device has structural symmetry, can provide actuating forces in different directions, and particularly has a good effect of inhibiting the vibration of a complex space pipeline; the ring surrounds the piezoelectric ceramic stack and the damping spring, so that the whole device has larger actuating power; the piezoelectric ceramic stack and the damping spring can independently control vibration and can also be coordinated and matched to jointly control vibration, and the self-adaptive capacity is strong.
Description
Technical Field
The invention relates to an active and passive vibration control device for a pipeline, in particular to an active and passive vibration control device for a pipeline, which is formed by compounding a piezoelectric ceramic stack and a damping spring, and belongs to the field of vibration and noise control of an aviation hydraulic pipeline system.
Background
The aviation hydraulic pipeline system is generally started from a transmission device of a casing near an aircraft engine, is connected with a hydraulic oil pump and an actuating device, and is an important electromechanical system for realizing various operation tasks of a machine body. The hydraulic pipeline system has special structural characteristics, and the general pipeline is longer in length, more in bending and complex in structure, and needs to be fixedly arranged along the wall plate of the airplane due to limited space. The pressure pulsation impact load generated by the aviation hydraulic pump causes the pipeline system to generate strong vibration, so that the whole hydraulic pipeline system is subjected to large environmental vibration excitation. The forced vibration with large displacement amplitude can be generated at the strong excitation positions such as the bending position and the reducing position of the pipeline, so that the pipe body is collided, abraded and cracked, and the fixing clamp of the pipe body is loosened, failed and even broken, so that the flight safety is influenced.
Along with the development of the aviation hydraulic system towards high pressure, the pipeline vibration under the impact of pressure pulsation is stronger, so that higher requirements are put forward on the vibration control technology of the aviation hydraulic pipeline system. With the development of high pressure of aviation hydraulic pipeline systems, a large-power composite vibration control device is urgently needed to be developed to inhibit the vibration of wide-frequency-domain aviation pipelines.
Disclosure of Invention
The invention provides an active and passive composite vibration control device which is symmetrical in structure, large in actuating power, wide in frequency domain and reliable in vibration reduction effect in a three-dimensional direction, aiming at the problem of vibration control of an aviation hydraulic pipeline system at present.
The technical scheme of the invention is as follows:
an active and passive vibration control device for a pipeline comprises a limiting saddle, a circular ring, a slide block, a piezoelectric ceramic stack and a damping spring,
spacing saddle installs along pipeline circumference, and spacing saddle, slider are installed respectively to piezoceramics heap, damping spring both ends, and piezoceramics heap, damping spring arrange the suit in the ring along the circumference equidistance interval of pipeline in proper order to radial extrusion through spacing saddle and slider is fixed, and spacing saddle, slider and ring combined action are piled piezoceramics and damping spring and are fixed at the pipeline surface.
Preferably, the pipeline active and passive vibration control device further comprises a compression bolt, and the compression bolt applies radial pre-tightening force to the sliding block.
Preferably, the inner end face of the limiting saddle is provided with an arc face matched with the pipeline, the outer end of the limiting saddle is provided with a groove matched with the piezoelectric ceramic stack and the damping spring, and the piezoelectric ceramic stack or the damping spring is embedded into the groove during installation.
Preferably, the ring is provided with a threaded hole, the threaded hole is matched with the compression bolt and used for adjusting the pre-tightening force, the radial distance between the limiting saddle and the sliding block is adjusted, and the rigidity of the damping spring is changed by changing the compression amount of a steel spring in the damping spring.
Preferably, the ring is provided with a groove, the groove is matched with the sliding block, and the sliding block can slide in the groove and is used for installing the sliding block.
Preferably, the slider is provided with a groove matched with the piezoelectric ceramic stack and the damping spring and used for mounting the piezoelectric ceramic stack and the damping spring, and the piezoelectric ceramic stack and the damping spring are embedded into the groove during mounting.
Preferably, the piezoelectric ceramic stack comprises a plurality of piezoelectric ceramic plates.
Preferably, the piezoelectric ceramic stack is externally connected with a power supply and a control device, the control device processes vibration signals of the pipeline and transmits the signals to the piezoelectric ceramic stack, and the piezoelectric ceramic stack receives the signals transmitted by the control device and applies corresponding acting force to the pipeline so as to realize the vibration response of the pipeline system and suppress low-frequency vibration.
Preferably, the damping spring comprises a top end cover cap, a bottom end cover cap, a damping rubber ring and a steel spring.
Has the advantages that: the pipeline of this patent is active and is controlled device that shakes is through the structural combination that has symmetry design and the passive wide band territory damping of initiative, can provide the power of acting of a plurality of directions, there is fine suppression effect to the vibration of complicated space pipeline, the crisscross equipartition in pipeline surface of piezoceramics heap and damping spring, the integration of active and passive has been realized, wide band territory damping, damping spring has the advantage of low frequency and big damping, piezoceramics heap reaction is sensitive, the pretightning force size is adjusted with the clamp bolt cooperation to the ring and then the rigidity of control piezoceramics heap and damping spring, the ring can provide the power of acting that relatively big with the cooperation of piezoceramics heap simultaneously. The piezoelectric ceramic stack and the damping spring can independently play a role in vibration reduction, can also be coordinated and matched to jointly act, and are simple and convenient to install and reliable in vibration reduction effect.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an active and passive vibration control device for pipelines according to the present invention;
FIG. 2 is a schematic structural perspective view of an active and passive vibration control device for pipelines according to the present invention;
FIG. 3 is a schematic view of the damping spring structure of the present invention;
FIG. 4 is a schematic structural diagram of the active and passive vibration control device for pipelines according to the present invention;
in the drawings, the parts names represented by the respective reference numerals are listed as follows: 1. the device comprises a pipeline, 2, a limiting saddle, 3, a ring, 4, a sliding block, 5, a piezoelectric ceramic stack, 6, a compression bolt, 7, a damping spring, 71, a top end cover cap, 72, a bottom end cover cap, 73, a damping material, 74 and a steel spring.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
As shown in figures 1-3, the active and passive vibration control device for the pipeline comprises a pipeline 1, a limiting saddle 2, a circular ring 3, a slide block 4, a piezoelectric ceramic stack 5, a pressure bolt 6 and a damping spring 7,
In the embodiment, the number of the piezoelectric ceramic stacks 5 and the number of the damping springs 7 are 3, the piezoelectric ceramic stacks 5 and the damping springs 7 are arranged at equal intervals along the circumferential direction of the pipeline 1, the piezoelectric ceramic stacks 5 and the damping springs 7 are fixed by radial extrusion of the limiting saddle 2 and the sliding block 4, and the compression bolts 6 apply pre-tightening force to the piezoelectric ceramic stacks 5 and the damping springs 7.
In addition, the ring 3 in this example is further processed with a rectangular groove and a threaded hole, the threaded hole can be matched with the tightening bolt 6 to adjust the pre-tightening force, the radial distance between the limiting saddle 2 and the slider 4 is adjusted, and the rigidity of the damping spring is changed by changing the compression amount of the steel spring in the damping spring 7. The slider 4 is a cuboid mass block with a rectangular groove processed in the center, and the groove is matched with the top ends of the piezoelectric ceramic stack 5 and the damping spring 7. The inner end face of the limiting saddle 2 is an arc face matched with the pipeline 1, a rectangular groove is processed at the outer end of the limiting saddle, and the groove is matched with the piezoelectric ceramic stack 5 and the bottom end of the damping spring 7. The damping spring 7 includes a top end cover 71, a bottom end cover 72, a damping rubber ring 73, and a steel spring 74. The top end cover 71 and the bottom end cover 72 are sleeved by a damping rubber ring 73, a steel spring 74 is installed in the top end cover 71 and the bottom end cover 72 and is an elastic element, and the rigidity of the damping spring 7 is changed by adjusting the length of the steel spring 74. The piezoelectric ceramic stack 5 is formed by stacking a plurality of piezoelectric ceramic sheets 51, the piezoelectric ceramic stack 5 is used as an active actuator, is externally connected with a power supply and a control device, the control device processes vibration signals of the pipeline 1 and transmits the signals to the piezoelectric ceramic stack 5, the piezoelectric ceramic stack 5 receives the signals transmitted by the control device and applies corresponding acting force to the pipeline 1 to realize vibration response to the pipeline system to inhibit low-frequency vibration, and real-time and accurate control over the pipeline 1 is realized.
The method for connecting the pipeline active and passive vibration control devices comprises the following steps:
the limiting saddle 2 is arranged on the pipeline 1, so that the limiting saddle 2 can be bonded with the pipeline 1 by using an adhesive in order to facilitate the installation of the limiting saddle 2, the limiting saddle 2 is uniformly arranged on the outer surface of the pipeline 1, and a certain gap is reserved between every two adjacent limiting saddles 2;
accurately placing the piezoelectric ceramic stacks 5 and the damping springs 7 into the grooves of the limiting saddle 2, wherein the piezoelectric ceramic stacks 5 and the damping springs 7 are uniformly distributed in a staggered manner and fixed on the limiting saddle 2;
the slide block 4 is respectively matched with the piezoelectric ceramic stack 5 and the upper end of the damping spring 7, and the slide block 4 is accurately embedded into the groove of the circular ring 3. In order to fix the piezoelectric ceramic stack 5 and the damping spring 7 in the radial direction and to be able to apply a pre-tightening force, the slide block 4 is pressed by a pressing bolt 6.
The active passive accuse of pipeline device that shakes of this patent is piled 5 and the crisscross equipartition of damping spring 7 and is realized active passive complex in 1 surface of pipeline through piezoceramics, wide band territory damping effect has, damping spring 7 has the advantage of low frequency nature and big damping, piezoceramics piles 5 reaction sensitivity, ring 3 and clamp bolt 6 cooperation, through the size of adjusting the pretightning force and then control piezoceramics and pile 5 and damping spring 7's rigidity, ring 3 and piezoceramics pile 5 combination can provide bigger acting force for the vibration suppression of pipeline 1 simultaneously. The piezoelectric ceramic stack 5 and the damping spring 7 can independently play a role in vibration reduction and can also be coordinated and matched to jointly actuate, so that the adaptive capacity is strong, the installation is simple and convenient, and the vibration reduction effect is reliable.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (9)
1. An active and passive vibration control device for a pipeline is characterized by comprising a limiting saddle, a circular ring, a slide block, a piezoelectric ceramic stack and a damping spring,
spacing saddle installs along pipeline circumference, and spacing saddle, slider are installed respectively to piezoceramics heap, damping spring both ends, and piezoceramics heap, damping spring arrange the suit in the ring along the circumference equidistance interval of pipeline in proper order to radial extrusion through spacing saddle and slider is fixed, and spacing saddle, slider and ring combined action are piled piezoceramics and damping spring and are fixed at the pipeline surface.
2. The active and passive vibration control device for the pipeline according to claim 1, further comprising a compression bolt, wherein the compression bolt can apply radial pre-tightening force to the sliding block.
3. The active and passive vibration control device for the pipeline as claimed in claim 1, wherein the inner end surface of the limiting saddle is provided with an arc surface adapted to the pipeline, and the outer end is provided with a groove adapted to the piezoelectric ceramic stack and the damping spring.
4. The active and passive vibration control device for the pipeline as claimed in claim 2, wherein the ring is provided with a threaded hole, and the threaded hole is matched with the compression bolt.
5. The active and passive vibration control device for pipelines according to claim 1, wherein the ring is provided with a groove, and the groove is matched with the sliding block.
6. The active and passive vibration control device for the pipeline as claimed in claim 1, wherein the slider is formed with a groove adapted to the piezo-ceramic stack and the damping spring.
7. The active and passive vibration control device for pipelines according to claim 1, wherein the piezoelectric ceramic stack comprises a plurality of piezoelectric ceramic plates.
8. The active and passive vibration control device for the pipeline according to claim 1, wherein the piezoelectric ceramic stack is connected with a power supply and a control device, the control device processes vibration signals of the pipeline and transmits the signals to the piezoelectric ceramic stack, and the piezoelectric ceramic stack receives the signals transmitted by the control device and applies corresponding acting force to the pipeline to realize the vibration response of the pipeline system to suppress low-frequency vibration.
9. The active and passive vibration control device for the pipeline according to claim 1, wherein the damping spring comprises a top end cover cap, a bottom end cover cap, a damping rubber ring and a steel spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110258170.XA CN112856089A (en) | 2021-03-10 | 2021-03-10 | Active and passive vibration control device for pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110258170.XA CN112856089A (en) | 2021-03-10 | 2021-03-10 | Active and passive vibration control device for pipeline |
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| Publication Number | Publication Date |
|---|---|
| CN112856089A true CN112856089A (en) | 2021-05-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110258170.XA Pending CN112856089A (en) | 2021-03-10 | 2021-03-10 | Active and passive vibration control device for pipeline |
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| Country | Link |
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| CN (1) | CN112856089A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115095795A (en) * | 2022-06-09 | 2022-09-23 | 烟台大学 | Fluid pulsation active suppression device and system based on distributed piezoelectric ceramics |
| CN116697181A (en) * | 2023-08-02 | 2023-09-05 | 中国航发沈阳发动机研究所 | Vibration suppressing structure for pipeline |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2229789A (en) * | 1989-03-16 | 1990-10-03 | Topexpress Ltd | Active control of vibration |
| CN107420646A (en) * | 2017-07-03 | 2017-12-01 | 中国大唐集团科学技术研究院有限公司西北分公司 | A kind of adjustable pipeline vibrates multidirectional buffer unit |
| CN207906607U (en) * | 2018-01-08 | 2018-09-25 | 董越萌 | A kind of city underground pipeline support vibration absorber |
| KR101948596B1 (en) * | 2018-05-31 | 2019-02-15 | 임건태 | Seismic restraint of gas piping |
| CN110745209A (en) * | 2019-11-29 | 2020-02-04 | 烟台大学 | Connecting structure, connecting method and control system for pipeline and vibration reduction assembly |
| CN110768578A (en) * | 2019-11-15 | 2020-02-07 | 燕山大学 | Hydraulic pipeline vibration energy recovery device |
| CN110792714A (en) * | 2019-11-14 | 2020-02-14 | 江苏联能电子技术有限公司 | Piezoelectric rubber composite actuator for active vibration isolation control |
| CN214405137U (en) * | 2021-03-10 | 2021-10-15 | 烟台大学 | Active and passive vibration control device for pipeline |
-
2021
- 2021-03-10 CN CN202110258170.XA patent/CN112856089A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2229789A (en) * | 1989-03-16 | 1990-10-03 | Topexpress Ltd | Active control of vibration |
| CN107420646A (en) * | 2017-07-03 | 2017-12-01 | 中国大唐集团科学技术研究院有限公司西北分公司 | A kind of adjustable pipeline vibrates multidirectional buffer unit |
| CN207906607U (en) * | 2018-01-08 | 2018-09-25 | 董越萌 | A kind of city underground pipeline support vibration absorber |
| KR101948596B1 (en) * | 2018-05-31 | 2019-02-15 | 임건태 | Seismic restraint of gas piping |
| CN110792714A (en) * | 2019-11-14 | 2020-02-14 | 江苏联能电子技术有限公司 | Piezoelectric rubber composite actuator for active vibration isolation control |
| CN110768578A (en) * | 2019-11-15 | 2020-02-07 | 燕山大学 | Hydraulic pipeline vibration energy recovery device |
| CN110745209A (en) * | 2019-11-29 | 2020-02-04 | 烟台大学 | Connecting structure, connecting method and control system for pipeline and vibration reduction assembly |
| CN214405137U (en) * | 2021-03-10 | 2021-10-15 | 烟台大学 | Active and passive vibration control device for pipeline |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115095795A (en) * | 2022-06-09 | 2022-09-23 | 烟台大学 | Fluid pulsation active suppression device and system based on distributed piezoelectric ceramics |
| CN116697181A (en) * | 2023-08-02 | 2023-09-05 | 中国航发沈阳发动机研究所 | Vibration suppressing structure for pipeline |
| CN116697181B (en) * | 2023-08-02 | 2023-10-10 | 中国航发沈阳发动机研究所 | Vibration suppressing structure for pipeline |
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