CN114623289A - Active and passive combined type shock absorption device and working method thereof - Google Patents
Active and passive combined type shock absorption device and working method thereof Download PDFInfo
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- CN114623289A CN114623289A CN202210411555.XA CN202210411555A CN114623289A CN 114623289 A CN114623289 A CN 114623289A CN 202210411555 A CN202210411555 A CN 202210411555A CN 114623289 A CN114623289 A CN 114623289A
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- vibration
- shock absorbing
- pipeline
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- 230000035939 shock Effects 0.000 title claims abstract description 41
- 238000010521 absorption reaction Methods 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000002955 isolation Methods 0.000 claims abstract description 7
- 239000002131 composite material Substances 0.000 claims description 15
- 239000006096 absorbing agent Substances 0.000 claims description 13
- 230000003321 amplification Effects 0.000 claims description 13
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 13
- 230000006698 induction Effects 0.000 claims description 6
- 239000011359 shock absorbing material Substances 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 5
- 230000001133 acceleration Effects 0.000 claims description 4
- 230000001939 inductive effect Effects 0.000 claims description 2
- 230000004044 response Effects 0.000 abstract description 6
- 238000001228 spectrum Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 238000013016 damping Methods 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 230000008054 signal transmission Effects 0.000 description 3
- 238000010977 unit operation Methods 0.000 description 3
- 230000008092 positive effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001976 improved effect Effects 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000008093 supporting effect Effects 0.000 description 1
Images
Classifications
-
- 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
- F16L3/00—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets
- F16L3/08—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing
- F16L3/10—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing divided, i.e. with two or more members engaging the pipe, cable or protective tubing
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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
Abstract
The embodiment of the application discloses active and passive combined type inhales shake device and working method thereof relates to vibration noise control technical field, inhale shake the shake device and be applicable to the pipeline vibration isolation, include: the pipe clamp is sleeved outside the pipeline, and a medium-high frequency shock absorption unit is arranged in the pipe clamp; the driving assembly is connected with the pipe clamp; the response drive assembly, the response drive assembly with drive assembly connects, shakes the unit through setting up the medium-high frequency in the pipe strap, turns into the vibration heat energy and dissipates, controls the medium-high frequency broadband vibration of pipeline.
Description
Technical Field
The application relates to the technical field of vibration noise control, in particular to an active and passive combined type shock absorption device and a working method thereof.
Background
The pipeline is one of main vibration noise transmission paths of a ship mechanical equipment noise source system. With the perfection of vibration noise control measures of a noise source and the popularization and application of single-layer vibration reduction and double-layer vibration reduction measures, the control of the vibration noise of a pipeline channel becomes one of focuses of vibration noise control work.
In the traditional pipeline vibration noise control, the transmission of vibration is usually inhibited by adopting a pipeline elastic support and hanger, a passive dynamic vibration absorption ring and the like. Test results show that the elastic supporting and hanging bracket of the pipeline has a certain control effect on broadband vibration transmission, but has a poor effect on low-frequency vibration control. The dynamic vibration absorption ring can effectively suppress line spectrum vibration of characteristic frequency, but the effect is difficult to achieve under the condition of system frequency deviation or vibration distribution state change. Therefore, the research on the pipeline vibration transmission control technology needs to be carried out urgently, a pipeline vibration absorption structure which has a good vibration absorption and isolation effect in a low frequency band and a medium and high frequency band is designed, the pipeline vibration absorption structure has frequency self-adaptive following capability, the frequency and working state change of a system are effectively captured, and the vibration reduction and isolation performance is improved.
Disclosure of Invention
The present application aims to provide an active and passive composite shock absorbing device and a working method thereof, so as to solve the technical problems existing in the prior art: the technical problem of how to design the pipeline vibration absorption at the low-frequency section and the middle-high frequency section is solved.
In order to solve the technical problem, the following technical scheme is adopted in the application:
a first aspect of an embodiment of the present application provides an active and passive combined type shock absorbing device, the shock absorbing device is suitable for vibration isolation of a pipeline, and is characterized by comprising: the pipe clamp is sleeved outside the pipeline, and a medium-high frequency shock absorption unit is arranged in the pipe clamp; the driving assembly is connected with the pipe clamp; the induction driving assembly is connected with the driving assembly.
In some embodiments, the inductive drive assembly comprises: the sensing unit is used for picking up a vibration signal of the pipeline; the control unit is used for collecting vibration signals and generating voltage control signals through operation; and the signal amplification unit is used for amplifying the voltage control belief to generate a control current.
In some embodiments, the drive assembly includes a vibration absorber, the control current generated by the signal amplification unit is passed through the vibration absorber, and the power output end of the vibration absorber is connected to the pipe clamp.
In some embodiments, the medium-high frequency shock absorbing element is a shock absorbing material disposed within the tubecard.
In some embodiments, the shock absorbing material is particle damping.
In some embodiments, the sensing unit is a vibration acceleration sensor.
In some embodiments, the control unit is a control box, and a signal converter is arranged in the control box.
In some embodiments, the signal amplification unit is a power amplifier.
In some embodiments, the vibration absorber is disposed above the pipe.
A second aspect of the embodiments of the present application provides a working method of an active and passive composite shock absorbing device, including the following steps:
when medium-frequency or high-frequency vibration is generated in the pipeline, the vibration is converted into heat energy for dissipation through the medium-high frequency vibration absorption unit arranged in the pipe clamp, and the vibration absorption is completed;
when low-frequency vibration is generated in the pipeline, a vibration signal is acquired through the sensing unit, the signal is transmitted to the control unit, a voltage control signal is generated through the operation of the control unit, the voltage control signal is amplified by the signal amplification unit and then transmitted to the driving assembly, and the driving assembly generates an acting force and transmits the acting force to the pipeline through the pipe clamp to offset the vibration of the pipeline.
According to the technical scheme, the method has at least the following advantages and positive effects:
according to the active and passive combined type shock absorption device, the medium-high frequency shock absorption unit is arranged in the pipe clamp, so that vibration is converted into heat energy to be dissipated, and medium-high frequency broadband vibration of a pipeline is controlled; acquire vibration signal through the induction element, with signal transmission for the control unit, generate voltage control signal through the control unit operation, voltage control signal transmits for drive assembly after signal amplification unit enlargies, drive assembly produces the effort and transmits to the pipeline on through the pipe strap, offsets the vibration of pipeline, to low frequency line spectrum vibration control, realizes the main passive complex vibration absorption of pipeline vibration, effectively reduces the low frequency line spectrum and the broadband vibration of pipeline.
An active and passive combined type shock absorption device in this application through setting up response drive assembly, makes this device have frequency self-adaptation following ability, effectively catches the frequency and the operating condition change of system, improves and subtracts the vibration isolation performance.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only 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 view of an active and passive composite shock absorbing device according to an embodiment;
fig. 2 is a side view of an active and passive composite shock absorbing device according to an embodiment.
The reference numerals are explained below: 1. a pipeline; 2. a pipe clamp; 3. a vibration acceleration sensor; 4. a control box; 5. a power amplifier; 6. a vibration absorber; 7. and (4) damping the particles.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present application.
The terms "first", "second" and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, features defined as "first", "second", and "third" may explicitly or implicitly include one or more of the features. In the description of the present application, "a plurality" means two or more unless otherwise specified.
In the description of the present application, it should be noted that, unless otherwise explicitly stated or limited, the terms "communicate," "mount," "connect," and "connect" are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
Please refer to fig. 1 and fig. 2.
Fig. 1 and 2 are schematic structural views of an active and passive composite shock absorbing device according to an embodiment of the present application, wherein the shock absorbing device is adapted to isolate vibration of a pipe 1, and comprises: the pipe clamp 2 is sleeved on the outer side of the pipeline 1, and a medium-high frequency shock absorption unit is arranged in the pipe clamp 2; the driving assembly is connected with the pipe clamp 2; the response drive assembly, the response drive assembly with drive assembly connects, shakes the unit through setting up the medium-high frequency in pipe strap 2, turns into the vibration heat energy and dissipates, controls the medium-high frequency broadband vibration of pipeline 1.
In this embodiment, the induction driving assembly includes: a sensing unit for picking up a vibration signal of the pipeline 1; the control unit is used for collecting vibration signals and generating voltage control signals through operation; and the signal amplification unit is used for amplifying the voltage control belief to generate a control current. In the specific implementation process of this embodiment, the sensing unit is a vibration acceleration sensor 3; the control unit is a control box 4, a signal converter is arranged in the control box 4, and the signal amplification unit is a power amplifier 5.
In this implementation's concrete implementation process, acquire shock signal through the induction element, give the control unit with signal transmission, generate voltage control signal through the control unit operation, voltage control signal transmits drive assembly after signal amplification unit enlargies, drive assembly produces the effort and transmits pipeline 1 through pipe strap 2 on, offset pipeline 1's vibration, to low frequency line spectrum vibration control, realize the passive compound vibration absorption of the owner of pipeline 1 vibration, effectively reduce pipeline 1's low frequency line spectrum and broadband vibration.
In this embodiment, the driving assembly includes a vibration absorber 6, the control current generated by the signal amplifying unit is passed through the vibration absorber 6, and the power output end of the vibration absorber 6 is connected to the pipe clamp 2.
In this embodiment, the medium-high frequency shock absorbing unit is a shock absorbing material disposed inside the pipe clamp 2, and preferably, the shock absorbing material is a particle damper 7. The particle damping 7 converts the vibration energy into heat energy for consumption, and the passive control of the vibration of the pipeline 1 is realized. The part of functions has better control effect on the medium-high frequency broadband vibration of the pipeline 1.
In this embodiment, the vibration absorber is disposed above the pipe.
The embodiment also provides a working method of the active and passive combined shock absorption device, which comprises the following steps:
when medium-frequency or high-frequency vibration is generated in the pipeline, the vibration is converted into heat energy for dissipation through the medium-high frequency vibration absorption unit arranged in the pipe clamp, and the vibration absorption is completed;
when low-frequency vibration is generated in the pipeline, a vibration signal is acquired through the sensing unit, the signal is transmitted to the control unit, a voltage control signal is generated through the operation of the control unit, the voltage control signal is amplified by the signal amplification unit and then transmitted to the driving assembly, and the driving assembly generates an acting force and transmits the acting force to the pipeline through the pipe clamp to offset the vibration of the pipeline.
According to the technical scheme, the method has at least the following advantages and positive effects:
according to the active and passive combined type shock absorption device, the medium-high frequency shock absorption unit is arranged in the pipe clamp, so that vibration is converted into heat energy to be dissipated, and medium-high frequency broadband vibration of a pipeline is controlled; acquire vibration signal through the induction element, with signal transmission for the control unit, generate voltage control signal through the control unit operation, voltage control signal transmits for drive assembly after signal amplification unit enlargies, drive assembly produces the effort and transmits to the pipeline on through the pipe strap, offsets the vibration of pipeline, to low frequency line spectrum vibration control, realizes the main passive complex vibration absorption of pipeline vibration, effectively reduces the low frequency line spectrum and the broadband vibration of pipeline.
An active and passive combined type shock absorption device in this application through setting up response drive assembly, makes this device have frequency self-adaptation following ability, effectively catches the frequency and the operating condition change of system, improves and subtracts the vibration isolation performance.
In the foregoing description of embodiments, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. An active and passive composite shock absorbing device, said shock absorbing device adapted for vibration isolation of a pipe, comprising:
the pipe clamp is sleeved on the outer side of the pipeline, and a medium-high frequency shock absorption unit is arranged in the pipe clamp;
the driving assembly is connected with the pipe clamp;
the induction driving assembly is connected with the driving assembly.
2. The active and passive composite shock absorbing device as defined in claim 1, wherein said inductive drive assembly includes:
the sensing unit is used for picking up a vibration signal of the pipeline;
the control unit is used for collecting vibration signals and generating voltage control signals through operation;
and the signal amplification unit is used for amplifying the voltage control belief to generate a control current.
3. The active-passive composite shock absorbing device as defined in claim 2, wherein the driving assembly includes a shock absorber, the control current generated by the signal amplification unit is applied to the shock absorber, and the power output end of the shock absorber is connected to the pipe clamp.
4. The active-passive composite shock absorbing device as defined in claim 1, wherein the middle-high frequency shock absorbing unit is a shock absorbing material disposed inside the tube card.
5. The active-passive composite shock absorbing device as defined in claim 4, wherein the shock absorbing material is particle damped.
6. The active-passive composite shock absorbing device as defined in claim 2, wherein the sensing unit is a vibration acceleration sensor.
7. The active-passive composite shock absorbing device as defined in claim 2, wherein the control unit is a control box, and a signal converter is disposed in the control box.
8. The active-passive composite shock absorbing device as defined in claim 2, wherein the signal amplifying unit is a power amplifier.
9. The active-passive composite shock absorbing device as defined in claim 3, wherein the shock absorber is disposed above the pipe.
10. The working method of the active-passive composite shock absorbing device as claimed in any one of claims 1 to 9, comprising the steps of:
when medium-frequency or high-frequency vibration is generated in the pipeline, the vibration is converted into heat energy for dissipation through the medium-high frequency vibration absorption unit arranged in the pipe clamp, and the vibration absorption is completed;
when low-frequency vibration is generated in the pipeline, a vibration signal is acquired through the sensing unit, the signal is transmitted to the control unit, a voltage control signal is generated through the operation of the control unit, the voltage control signal is amplified by the signal amplification unit and then transmitted to the driving assembly, and the driving assembly generates an acting force and transmits the acting force to the pipeline through the pipe clamp to offset the vibration of the pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210411555.XA CN114623289A (en) | 2022-04-19 | 2022-04-19 | Active and passive combined type shock absorption device and working method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210411555.XA CN114623289A (en) | 2022-04-19 | 2022-04-19 | Active and passive combined type shock absorption device and working method thereof |
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| CN114623289A true CN114623289A (en) | 2022-06-14 |
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| CN202210411555.XA Pending CN114623289A (en) | 2022-04-19 | 2022-04-19 | Active and passive combined type shock absorption device and working method thereof |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060225980A1 (en) * | 2005-04-11 | 2006-10-12 | Simonian Stepan S | Tunable adjustable multi-element hybrid particle damper |
| CN105922817A (en) * | 2016-04-21 | 2016-09-07 | 同济大学 | Urban rail vehicle wheel composite damping vibration attenuation noise reduction device |
| CN110440087A (en) * | 2019-08-15 | 2019-11-12 | 武汉理工大学 | It is a kind of based on piezoelectric stack driving pipeline actively subtract isolation mounting and control system |
| CN112539299A (en) * | 2019-09-20 | 2021-03-23 | 林嘉祥 | Pipeline damping vibration attenuation structure |
| CN215173220U (en) * | 2021-06-22 | 2021-12-14 | 厦门环寂高科有限公司 | Multidirectional wide band pipeline shock absorber based on particle damping |
| CN113883353A (en) * | 2021-09-18 | 2022-01-04 | 苏州东菱智能减振降噪技术有限公司 | Six-degree-of-freedom pipeline shock absorber and shock absorption method |
| CN217422408U (en) * | 2022-04-19 | 2022-09-13 | 中国船舶重工集团公司第七一九研究所 | Active and passive combined type shock absorption device |
-
2022
- 2022-04-19 CN CN202210411555.XA patent/CN114623289A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060225980A1 (en) * | 2005-04-11 | 2006-10-12 | Simonian Stepan S | Tunable adjustable multi-element hybrid particle damper |
| CN105922817A (en) * | 2016-04-21 | 2016-09-07 | 同济大学 | Urban rail vehicle wheel composite damping vibration attenuation noise reduction device |
| CN110440087A (en) * | 2019-08-15 | 2019-11-12 | 武汉理工大学 | It is a kind of based on piezoelectric stack driving pipeline actively subtract isolation mounting and control system |
| CN112539299A (en) * | 2019-09-20 | 2021-03-23 | 林嘉祥 | Pipeline damping vibration attenuation structure |
| CN215173220U (en) * | 2021-06-22 | 2021-12-14 | 厦门环寂高科有限公司 | Multidirectional wide band pipeline shock absorber based on particle damping |
| CN113883353A (en) * | 2021-09-18 | 2022-01-04 | 苏州东菱智能减振降噪技术有限公司 | Six-degree-of-freedom pipeline shock absorber and shock absorption method |
| CN217422408U (en) * | 2022-04-19 | 2022-09-13 | 中国船舶重工集团公司第七一九研究所 | Active and passive combined type shock absorption device |
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