CN107869543B - Isolation mounting based on magnetorheological fluid - Google Patents
Isolation mounting based on magnetorheological fluid Download PDFInfo
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- CN107869543B CN107869543B CN201710896097.2A CN201710896097A CN107869543B CN 107869543 B CN107869543 B CN 107869543B CN 201710896097 A CN201710896097 A CN 201710896097A CN 107869543 B CN107869543 B CN 107869543B
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- acceleration
- base
- bottom base
- top base
- relative displacement
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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
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F7/00—Vibration-dampers; Shock-absorbers
- F16F7/14—Vibration-dampers; Shock-absorbers of cable support type, i.e. frictionally-engaged loop-forming cables
-
- 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
- F16F13/00—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs
- F16F13/002—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising at least one fluid spring
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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
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/3292—Sensor arrangements
-
- 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
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/50—Special means providing automatic damping adjustment, i.e. self-adjustment of damping by particular sliding movements of a valve element, other than flexions or displacement of valve discs; Special means providing self-adjustment of spring characteristics
- F16F9/504—Inertia, i.e. acceleration,-sensitive means
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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
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/53—Means for adjusting damping characteristics by varying fluid viscosity, e.g. electromagnetically
- F16F9/535—Magnetorheological [MR] fluid dampers
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Vibration Prevention Devices (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The invention discloses a kind of isolation mountings based on magnetorheological fluid, comprising: steel-wire isolator comprising top base, bottom base and wirerope；Magnetic rheological liquid damper, both ends are connected to top base and bottom base；And control assembly, it includes the second acceleration transducer and a controller of the first acceleration transducer of first acceleration for detecting bottom base, second acceleration for detecting top base, and controller, which is used to control when the ratio of the second acceleration and the first acceleration is greater than or equal to first threshold to magnetic rheological liquid damper, exports electric current.Steel-wire isolator and magnetic rheological liquid damper are combined as a whole by the present invention, it can be in steady-state vibration, controller to the output electric current of magnetic rheological liquid damper be zero, its damping that can reduce isolation mounting is to improve vibration isolating effect, and in resonance, it passes through, controller exports electric current to magnetic rheological liquid damper, and magnetic rheological liquid damper may make to increase the damping of isolation mounting to inhibit to resonate.
Description
Technical field
The present invention relates to vibration isolation techniques, and in particular to a kind of isolation mounting based on magnetorheological fluid.
Background technique
Modern age on-board equipment often works in the interference environment of wide frequency domain and big magnitude vibration, how to solve these equipment
Wide frequency domain vibration isolation, resonance inhibition and shock problem have become on-board equipment anti-vibration and shock processing in a new issue.
Therewith, it also proposed new requirement to the vibration isolator of on-board equipment, that is, while guaranteeing the effect of good vibration isolation, also to have good
Good shock isolation effect.
In addition, warship equipment on board often passes through a resonance region, at this time equipment in ships starting or autonomous parking
Vibration amplitude can be bigger, the covibration for controlling equipment seems particularly significant.And many on-board equipments are total in practice
Vibration response is often inevitable, and therefore, while solving the common vibration isolation of on-board equipment, is inhibited to covibration
Seem extremely important.Meanwhile when system passes through resonance region, increases system damping and be conducive to inhibit equipment resonance, but steady
When state is vibrated, vibration isolating effect can be improved again by reducing system damping.
Vibration isolator used by on-board equipment is mainly the passive modes such as metal isolator, rubber shock absorber at present, generally
It is provided with preferable impact resistance, but its damping is unadjustable, it is difficult to combine resonance inhibition, stable state vibration isolation.
Summary of the invention
It is an object of the invention to overcome above-mentioned technical deficiency, a kind of isolation mounting based on magnetorheological fluid is proposed, solve
Vibration isolator is difficult to the technical issues of combining resonance inhibition, stable state vibration isolation in the prior art.
To reach above-mentioned technical purpose, technical solution of the present invention provides a kind of isolation mounting based on magnetorheological fluid, packet
It includes:
Steel-wire isolator comprising top base, bottom base and the wirerope for connecting top base and bottom base；
Magnetic rheological liquid damper is set between the top base and bottom base and its both ends and is connected to the upper base
Seat and bottom base；And
Control assembly comprising the first acceleration transducer of first acceleration for detecting the bottom base, one
For detecting the second acceleration transducer and a controller of the second acceleration of the top base, the controller is used for when the
The ratio of two acceleration and the first acceleration controls to magnetic rheological liquid damper when being greater than or equal to first threshold and exports electric current.
Preferably, the controller include one detect the generation of the first acceleration for acquire the first acceleration transducer the
First acceleration signal acquisition module of one acceleration electric signal, one are used for the first acceleration signal and the second acceleration signal
Processing is the first DSP module of the first acceleration digital signal and the second acceleration digital signal, one for according to first respectively
Acceleration digital signal and the second acceleration digital signal recognize the first identification module, one of the first acceleration and the second acceleration
For judging whether the ratio of the second acceleration and the first acceleration is greater than or equal to the second judgment module and one of first threshold
For exporting electricity to magnetic rheological liquid damper when the ratio of the second acceleration and the first acceleration is greater than or equal to first threshold
First current output module of stream.
Preferably, the control assembly further includes one for detecting the displacement of the relative displacement between top base and bottom base
Sensor, the controller are also used to control when the relative displacement between top base and bottom base is greater than second threshold to magnetic current
Liquescent damper exports electric current.
Preferably, the controller further includes one for acquiring the phase between displacement sensor detection top base and bottom base
The relative displacement signal acquisition module of relative displacement electric signal is generated to displacement, for being phase by relative displacement Electric signal processing
To the second DSP module of displacement digital signal, for recognizing phase between top base and bottom base according to relative displacement digital signal
To the second identification module of displacement, for judging whether relative displacement is greater than the second of second threshold between top base and bottom base
Judgment module and one for when whether relative displacement is greater than second threshold between top base and bottom base to magnetorheological fluid damp
Second current output module of device output electric current.
Preferably, institute's displacement sensors are photoelectric displacement sensor, and it is set to the top base with respect to bottom base
One side surface.
Preferably, the top base and bottom base setting symmetrical above and below, the magnetic rheological liquid damper upper and lower side connect respectively
It connects in the middle part of the top base and bottom base.
Compared with prior art, steel-wire isolator and magnetic rheological liquid damper are combined as a whole by the present invention, can be
When steady-state vibration, controller is zero to the output electric current of magnetic rheological liquid damper, can reduce the damping of isolation mounting to improve
Vibration isolating effect, and it passes through in resonance, controller exports electric current to magnetic rheological liquid damper, may make magnetorheological fluid damp
Device increases the damping of isolation mounting to inhibit to resonate.
Detailed description of the invention
Fig. 1 is the attachment structure schematic diagram of the isolation mounting of the invention based on magnetorheological fluid；
Fig. 2 is the practical application schematic diagram of the isolation mounting of the invention based on magnetorheological fluid；
Fig. 3 is the connection block diagram of controller of the invention；
Fig. 4 is the relative displacement versus time curve schematic diagram between top base and bottom base of the invention.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Fig. 1~4 are please referred to, the present invention provides a kind of isolation mounting 10 based on magnetorheological fluid, comprising:
Steel-wire isolator 11 comprising top base 111, bottom base 112 and connection top base 111 and bottom base 112
Wirerope 113；
Magnetic rheological liquid damper 12 is set between the top base 111 and bottom base 112 and its both ends is connected to
The top base 111 and bottom base 112；And
Control assembly 13 comprising the first acceleration sensing of first acceleration for detecting the bottom base 112
Device 131, one is used to detect the second acceleration transducer 132 and a controller 133 of the second acceleration of the top base 111,
The controller 133 is used to control when the ratio of the second acceleration and the first acceleration is greater than or equal to first threshold to magnetic current
Liquescent damper 12 exports electric current.
As shown in Figure 1, Figure 2, Figure 3 shows, when specific works, top base 111 and vibration-proof equipment 20 can be rigidly connected, and under
Pedestal 112 is then rigidly connected with basic component 30, then vibration can be transferred to vibration-proof equipment 20 by basic component 30.Swash when in stable state
It encourages down, being set to the first acceleration transducer 131 on bottom base 112 can first the accelerating of vibrating of real-time detection basic component 30
Spend a1, and be arranged with the second acceleration transducer 132 of top base 111 then can real-time detection vibration-proof equipment 20 vibrate second plus
Speed a2 sets first threshold as m, at certain flat rate f of excitation, as a2/a1 >=m, then illustrates that vibration-proof equipment 20 vibrates
Amplitude is excessive, and controller 133 controls to magnetic rheological liquid damper 12 and exports electric current, and magnetic rheological liquid damper 12 generates damping, from
And reduce the vibration transmissibility between bottom base 112 and top base 111, and then inhibit resonance；And as a2/a1 < m, controller
133 to magnetic rheological liquid damper 12 export electric current be zero, then with steel-wire isolator 11 be vibration isolation main body, with existing routine
The vibration isolating effect of steel-wire isolator 11 is essentially identical.
As shown in figure 3, controller 133 described in the present embodiment includes one for acquiring the detection of the first acceleration transducer 131
First acceleration signal acquisition module 133a of the first acceleration electric signal that the first acceleration generates, one add for acquiring second
Velocity sensor 132 detects the second acceleration signal acquisition module of the second acceleration electric signal that the second acceleration generates
133k, one are for handling the first acceleration signal and the second acceleration signal respectively as the first acceleration digital signal and second
First DSP module 133b of acceleration digital signal, one are for according to the first acceleration digital signal and the second acceleration number
First identification module 133c of the first acceleration of signal recognition and the second acceleration, one are for judging that the second acceleration and first adds
The first judgment module 133d and the one whether ratio of speed is greater than or equal to first threshold is used for when the second acceleration and first
The ratio of acceleration exports the first current output module of electric current to magnetic rheological liquid damper 12 when being greater than or equal to first threshold
133e.When its specific progress signal processing, detected respectively by the first acceleration transducer 131 and the second acceleration transducer 132
The acceleration of bottom base 112 and top base 111, to obtain the vibration acceleration of basic component 30 and vibration-proof equipment 20, first adds
The first acceleration electric signal and second that velocity sensor 131 and the second acceleration transducer 132 detection acceleration generate accelerates
Degree electric signal then handle by two the first DSP module 133b respectively as digital signal, and carry out some digital signals it is conventional at
Reason, is identified after processing by two first identification module 133c respectively, then judges that wooden unit 133d is carried out by first after identification
Judgement, when judging a2/a1 >=m, the first current output module 133e exports electric current so that magnetic to magnetic rheological liquid damper 12
Rheology fluid damper 12 generates damping, can increase the damping of isolation mounting 10, reduces between bottom base 112 and top base 111
Vibration transmissibility, and then achieve the purpose that inhibit resonance.
As shown in Figure 1, Figure 3, control assembly 13 described in the present embodiment further includes one for detecting top base 111 and bottom base
The displacement sensor 134 of relative displacement between 112, the controller 133 be also used to when top base 111 and bottom base 112 it
Between relative displacement be greater than second threshold when control to magnetic rheological liquid damper 12 export electric current.Displacement sensing described in the present embodiment
Photoelectric displacement sensor 134 can be used in device 134, and it is set to opposite 112 1 side surface of bottom base of the top base 111, tool
The lower surface of body setting and top base 111.When vibration-proof equipment 20 is under transient impact excitation, since displacement sensor 134 can
Relative displacement between real-time detection top base 111 and bottom base 112, between the top base 111 and bottom base 112 of the present embodiment
Relative displacement refer to that in the case where being not affected by incentive action of bestirring oneself, the spacing of top base 111 and bottom base 112 is rushed with by transient state
Hit the difference after excitation between top base 111 and the spacing of bottom base 112.If the second threshold set is h0, when top base 111
Relative displacement between bottom base 112 is greater than h0When, then controller 133 controls to magnetic rheological liquid damper 12 and exports electric current,
Its damping that can increase magnetic rheological liquid damper 12, and then increase the impact resistance of isolation mounting 10.As shown in figure 4, it is
The change curve of relative displacement t between the top base 111 and bottom base 112 of the isolation mounting 10 of the present embodiment is illustrated
Figure, in t0In time, the relative displacement between top base 111 and bottom base 112 is less than or equal to h0, controller 133 is to magnetorheological
The electric current that fluid damper 12 exports is zero, in t1In time, controller 133 has to the output of magnetic rheological liquid damper 12 greater than zero
Electric current can increase the damping of magnetic rheological liquid damper 12, and then increase the impact resistance of isolation mounting 10.
As shown in figure 3, the controller 133 further includes one for acquiring the detection top base 111 of displacement sensor 134 under
Relative displacement between pedestal 112 and generate the relative displacement signal acquisition module 133f of relative displacement electric signal, for by phase
To the second DSP module 133g that displacement Electric signal processing is relative displacement digital signal, for according to relative displacement digital signal
Identification top base 111 and bottom base 112 between relative displacement second identification module 133h, for judge top base 111 and under
The second judgment module 133i and one that whether relative displacement is greater than second threshold between pedestal 112 is used for when top base 111 is under
The second electric current output of electric current is exported when whether relative displacement is greater than second threshold between pedestal 112 to magnetic rheological liquid damper 12
Module 133j, the opposite literature and art Electric signal processing that can acquire relative displacement signal acquisition module 133f are digital signal, and
By being compared judgement with second threshold after the second identification module 133h identification, when it is greater than second threshold, the second electric current
Output module 133j then exports electric current to magnetic rheological liquid damper 12, to increase the damping of magnetic rheological liquid damper 12, Jin Erzeng
The impact resistance of big isolation mounting 10.
As shown in Figure 1, in order to improve the stability and harmony of the active force of the generation of magnetic rheological liquid damper 12, this implementation
The example top base 111 and the setting symmetrical above and below of bottom base 112,12 upper and lower side of magnetic rheological liquid damper are separately connected described
112 middle part of top base 111 and bottom base.Moreover, first acceleration transducer 131, the second acceleration transducer of the present embodiment
132 are respectively arranged at the lower end surface of the upper surface of bottom base 112 and top base 111, can avoid the first acceleration transducer 131
Influence bottom base 112 is connect with basic component 30 and the second acceleration transducer 132 influences top base 111 and sets with vibrationproof
Standby 20 connection.
Compared with prior art, steel-wire isolator 11 and magnetic rheological liquid damper 12 are combined as a whole by the present invention,
Can be in steady-state vibration, controller 133 is zero to the output electric current of magnetic rheological liquid damper 12, can reduce isolation mounting 10
Damping is to improve vibration isolating effect, and it passes through in resonance, and controller 133 exports electric current to magnetic rheological liquid damper 12, can
So that magnetic rheological liquid damper 12 increases the damping of isolation mounting 10 to inhibit to resonate；Meanwhile when top base 111 and bottom base
When relative displacement between 112 is excessive, controller 133 controls to magnetic rheological liquid damper 12 and exports electric current, can increase magnetic current
The damping of liquescent damper 12, and then increase the impact resistance of isolation mounting 10.
The above described specific embodiments of the present invention are not intended to limit the scope of the present invention..Any basis
Any other various changes and modifications that technical concept of the invention is made should be included in the guarantor of the claims in the present invention
It protects in range.
Claims (5)
1. a kind of isolation mounting based on magnetorheological fluid characterized by comprising
Steel-wire isolator comprising top base, bottom base and the wirerope for connecting top base and bottom base；
Magnetic rheological liquid damper, be set between the top base and bottom base and its both ends be connected to the top base and
Bottom base；And
Control assembly comprising the first acceleration transducer of first acceleration for detecting the bottom base, one are used for
The second acceleration transducer and a controller of the second acceleration of the top base are detected, the controller is used to add when second
The ratio of speed and the first acceleration controls to magnetic rheological liquid damper when being greater than or equal to first threshold and exports electric current；The control
Component processed further includes one for detecting the displacement sensor of the relative displacement between top base and bottom base, and the controller is also used
Electric current is exported in controlling when the relative displacement between top base and bottom base is greater than second threshold to magnetic rheological liquid damper.
2. the isolation mounting according to claim 1 based on magnetorheological fluid, which is characterized in that the controller includes a use
It is adopted in the first acceleration signal for acquiring the first acceleration electric signal that the first acceleration transducer detects the generation of the first acceleration
Collection module, one add for acquiring the second of the second acceleration electric signal that the second acceleration transducer the second acceleration of detection generates
Speed signal acquisition module, one accelerate degree for handling the first acceleration signal and the second acceleration signal respectively for first
First DSP module of word signal and the second acceleration digital signal, one according to the first acceleration digital signal and second for adding
First identification module of the first acceleration of speed number signal recognition and the second acceleration, one are for judging the second acceleration and the
Whether the ratio of one acceleration is greater than or equal to the first judgment module and one of first threshold for when the second acceleration and first
The ratio of acceleration exports the first current output module of electric current to magnetic rheological liquid damper when being greater than or equal to first threshold.
3. the isolation mounting according to claim 1 based on magnetorheological fluid, which is characterized in that the controller further includes one
The opposite of relative displacement electric signal is generated for acquiring the relative displacement between displacement sensor detection top base and bottom base
Displacement signal acquisition module, for by relative displacement Electric signal processing be relative displacement digital signal the second DSP module, be used for
The second identification module of relative displacement between top base and bottom base is recognized, for judging upper base according to relative displacement digital signal
Whether relative displacement is greater than the second judgment module and one of second threshold for when top base and bottom base between seat and bottom base
Between relative displacement when whether being greater than second threshold to the second current output module of magnetic rheological liquid damper output electric current.
4. the isolation mounting according to claim 1 based on magnetorheological fluid, which is characterized in that institute's displacement sensors are light
Electric displacement sensor, and it is set to the top base with respect to one side surface of bottom base.
5. the isolation mounting according to claim 1 based on magnetorheological fluid, which is characterized in that the top base and bottom base
Setting symmetrical above and below, the magnetic rheological liquid damper upper and lower side are separately connected in the middle part of the top base and in the middle part of bottom base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710896097.2A CN107869543B (en) | 2017-09-28 | 2017-09-28 | Isolation mounting based on magnetorheological fluid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710896097.2A CN107869543B (en) | 2017-09-28 | 2017-09-28 | Isolation mounting based on magnetorheological fluid |
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| Publication Number | Publication Date |
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| CN107869543A CN107869543A (en) | 2018-04-03 |
| CN107869543B true CN107869543B (en) | 2019-09-24 |
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| CN201710896097.2A Active CN107869543B (en) | 2017-09-28 | 2017-09-28 | Isolation mounting based on magnetorheological fluid |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110715015A (en) * | 2019-11-01 | 2020-01-21 | 詹勋 | Energy-absorbing type automobile engine suspension |
| CN112555341A (en) * | 2020-12-30 | 2021-03-26 | 江苏科能电力工程咨询有限公司 | Magnetorheological damper vibration reduction system for power transformer |
| CN114658789B (en) * | 2022-03-18 | 2024-03-22 | 中车青岛四方机车车辆股份有限公司 | Control method, device and equipment of magneto-rheological damper and readable storage medium |
| CN115419309B (en) * | 2022-08-31 | 2024-07-26 | 山东百顿减震科技有限公司 | Building vibration isolation method, equipment and medium based on intelligent vibration isolation support |
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| CN102767285A (en) * | 2012-07-11 | 2012-11-07 | 中联重科股份有限公司 | Arm support stroke control oil cylinder device and arm support vibration control system |
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