CN106224421A - The inertia-type actuator of a kind of low-frequency compensation and detection method thereof - Google Patents
The inertia-type actuator of a kind of low-frequency compensation and detection method thereof Download PDFInfo
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- CN106224421A CN106224421A CN201610793397.3A CN201610793397A CN106224421A CN 106224421 A CN106224421 A CN 106224421A CN 201610793397 A CN201610793397 A CN 201610793397A CN 106224421 A CN106224421 A CN 106224421A
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- low
- magnetic conductive
- inertia
- frequency compensation
- type actuator
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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
- F16F6/00—Magnetic springs; Fluid magnetic springs, i.e. magnetic spring combined with a fluid
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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
- F16F2222/00—Special physical effects, e.g. nature of damping effects
- F16F2222/06—Magnetic or electromagnetic
Abstract
nullDisclose inertia-type actuator and the start method thereof of a kind of low-frequency compensation，The inertia-type actuator of low-frequency compensation includes stator component、Oscillator component and the low-frequency compensation parts being attached on described stator component，Described stator component includes magnetic conductive board、Permanent magnet and housing，Described magnetic conductive board and permanent magnet are disposed on the inwall of described housing，Described oscillator component includes the first and second spring leafs、Operating bar、Magnetic conductive cylinder、Baffle plate，Rubber ring and coil，Described low-frequency compensation parts with the Frequency Response contrary with the Frequency Response of inertia-type actuator include low-frequency compensator and power amplifier，Stair-stepping magnetic conductive cylinder is connected with operating bar interference fit，The outer felt of the jut of described magnetic conductive cylinder is around the adjacent reverse coil of multistage，Two rubber rings are installed in the outside of the recessed portion of magnetic conductive cylinder，Described coil is clamped on described magnetic conductive cylinder by described rubber ring and baffle plate jointly.
Description
Technical field
The invention belongs to actively control field, particularly relate to inertia-type actuator and the start side thereof of a kind of low-frequency compensation
Method.
Background technology
The vibration produced a during frame for movement work all the time always problem making people's headache.Reduce frame for movement
The vibration produced during work is the problem that people are in the urgent need to address.Vibration control be one in vibration engineering field important
Branch, can be divided into passive control and actively control two classes.The active of vibration controls to refer to during vibration control, according to sensing
The vibration signal that device records, by certain control algolithm, drives executor to apply certain impact to controlling target, reaches to press down
System or the purpose of elimination vibration.Due to potential superioritys such as it is effective, strong adaptabilities, actively control the most widely
Find application.
Actuator is the critical component implementing actively to control, and is the important step of active control system, during its effect according to
The control law determined applies control power to control object.Along with the development of Active Vibration Control technology, the requirement to actuator
More and more higher, have developed various actuator.Wherein, electromagnetic actuator is compared to magnetorheological, electric current change, shape note
Recalling the actuator such as alloy, its response is fast, drive that electric current is little, displacement, power have more greatly good versatility.And inertia-type actuator
Being the one of electromagnetic actuator, it is compared to the advantage of ordinary electromagnetic actuator: ordinary electromagnetic actuator needs to be arranged on
On ground or suspended in midair, then by operating bar, controlled structure output is used as power, occupies additional space；And be used to
Property formula actuator is directly installed in controlled structure, and the Loulun magnetism suffered by its oscillator reacts on actuator housing, the most again
Acting on the controlled structure being connected with housing, it, without independent support, is not take up exceptional space.Thus, inertia-type actuator exists
Have a good application prospect in the environment of such as the compact conformation such as engine vibration-damping, buoyant raft vibration isolation, installing space are limited.So
And, it is the least that the design of existing inertia-type actuator determines its oscillator quality, and spring plate rigidity is bigger so that natural frequency is relatively
High.Thus, the control effect of low-frequency range not as people's will, this just makes it occur in that some problems in actual applications.
Integrated form inertia electromagnetic actuator disclosed in patent documentation CN103791013 A include outer magnetic conductive cylinder, upper end cover, under
End cap, the first permanent magnet, the second permanent magnet, the first permanent magnet is positioned at above the second permanent magnet, on the first permanent magnet is installed above
Magnetic conductor, installs middle magnetic conductor between the first permanent magnet and the second permanent magnet, install lower magnetic conductor below the second permanent magnet, on
Magnetic conductor, the first permanent magnet, middle magnetic conductor, the second permanent magnet, lower magnetic conductor are shaken by the connecting bolt composition that links into an integrated entity
Son, oscillator top and bottom are respectively mounted flat spring and lower flat spring, and upper end cover is arranged on outer magnetic conductive cylinder upper end, upper slice bullet
Spring is fixed between upper end cover and outer magnetic conductive cylinder, and bottom end cover is arranged on outer magnetic conductive cylinder bottom, and lower flat spring is fixed on bottom end cover
And between outer magnetic conductive cylinder, outer magnetic conductive cylinder inwall twines the most successively coil, intermediate coil and lower coil, upper coil and
Lower coil around to identical, intermediate coil and upper coil and lower coil around to contrary；Described the first permanent magnet and second is forever
The magnetic circuit of magnet is in opposite direction；Fan is installed on upper end cover, upper end cover and bottom end cover are provided with vent.This patent permanent magnetism
Body utilization rate is low, and magnetic induction is low, and the difference that is used as power and natural frequency are high, and low-frequency range controls weak effect, start effect need into
One step promotes.
A kind of moving-magnetic type inertial electrodynamic actuator disclosed in patent documentation CN203124239U includes shrouding (1), elastic unit
Part (2), pressing plate (3), cover plate (5), solenoid (10), dynamic magnetic part, coil retainer (11), magnetic conductive shell (12) and location
Circle (13), dynamic magnetic part include two fixture blocks (4), two or more than two Magnet (8), two pieces outside magnetic conductive board (7), one piece
Or the middle magnetic conductive board (9) of more than a piece, by outside magnetic conductive board-Magnet-centre magnetic conductive board-Magnet--magnetic
The sequential series of ferrum-outside magnetic conductive board forms, and two fixture blocks (4) are separately fixed at the center of two outside magnetic conductive board (7) end faces
Position；The root position of cover plate (5) inner surface has annular positioning groove, and the limited location hole, center of inner surface, spacing hole is by shrouding
(1) it is closed；Characterized by further comprising metal-rubber retainer (6), metal-rubber retainer (6) be by springs with
The incorporated loop configuration of rubber vulcanizing；Its integrated connection relation is: the two ends up and down of magnetic conductive shell (12) are by cover plate (5)
Close, limit in the annular positioning groove of bottom embedding cover plate (5) inner surface of metal-rubber retainer (6) and by centring ring (13)
Position, metal-rubber retainer (6) supports as located lateral, is fitted tightly on centring ring (13)；With pressing plate (3) by dynamic magnetic portion
Divide upper and lower two fixture blocks (4) to be connected location with metal-rubber retainer (6), make magnetic part be maintained at the footpath of magnetic conductive shell (12)
To center, conflict between pressing plate (3) and shrouding (1) in the two ends of flexible member (2), and flexible member (2) is produced by two end-plates (1)
Raw decrement, makes magnetic part realize axially location；Solenoid (10) is wrapped on coil retainer (11), solenoid
(10) it is integrally located on the inwall of magnetic conductive shell (12) with coil retainer (11).This patent is real under the size that actuator is less
Having showed bigger power output, but the permanent magnet utilization rate of this patent is low, magnetic induction is low and natural frequency is high, low-frequency range control
Weak effect processed, start effect needs to be further improved.
A kind of novel inertia actuator disclosed in patent documentation CN205160331 include base, ring spring, coil,
Magnet steel and upper end cover；Coil is fixed on base, and magnet steel and upper end cover fixed cover make coil be positioned at magnet steel above coil,
Three ring springs are distributed between base and upper end cover, by being welded and fixed.This patent low cost of manufacture, response soon, but are somebody's turn to do
The permanent magnet utilization rate of patent is low, and magnetic induction is low, and the difference that is used as power and natural frequency are high, and low-frequency range controls weak effect, start
Effect needs to be further improved.
Disclosed above-mentioned information is used only for strengthening the understanding to background of the present invention in the background section, it is thus possible to
Comprise and be not formed in the information of prior art known to a person of ordinary skill in the art in this country.
Summary of the invention
Therefore, for defect or the deficiency of existing actuator, the invention provides a kind of one side and both improved by poly-magnetic
Permanent magnet utilization rate, increases the magnetic induction in air gap, improves air gap Nei Kebu further through each dimensional parameters optimizing magnetic circuit
The method raising of the active coil number of turn put is used as power；On the other hand, both increased moving-coil quality by the improvement in structure, led to again
Cross the mode that its low frequency is compensated to improve Active Vibration Control executor and the start method thereof of its low frequency characteristic.
It is an object of the invention to be achieved by the following technical programs.
According to an aspect of the present invention, the inertia-type actuator of a kind of low-frequency compensation include stator component, oscillator component and
The low-frequency compensation parts being attached on described stator component, described stator component includes magnetic conductive board, permanent magnet and housing, described magnetic conduction
Plate and permanent magnet are disposed on the inwall of described housing, and described oscillator component includes the first and second spring leafs, operating bar, leads
Magnetic cylinder, baffle plate, rubber ring and coil, the described low frequency with the Frequency Response contrary with the Frequency Response of inertia-type actuator is mended
Repay parts and include that low-frequency compensator and power amplifier, stair-stepping magnetic conductive cylinder are connected with operating bar interference fit, described magnetic conduction
The outer felt of the jut of cylinder installs two rubber around the adjacent reverse coil of multistage, the outside of the recessed portion of magnetic conductive cylinder
Circle, described coil is clamped on described magnetic conductive cylinder by described rubber ring and baffle plate jointly.
Preferably, described stator component is provided with upper cover plate and lower cover, and described upper cover plate connects spring leaf via screw
Outer ring and housing, described lower cover connects outer ring and the housing of spring leaf via screw.
Preferably, the inner ring of spring leaf is affixed with upper clip, lower clamping piece, baffle plate and operating bar via screw.
Preferably, the inwall of described housing be arranged in order upper conduction magnetic board, upper permanent magnet, middle magnetic conductive board, lower permanent magnet, under lead
Magnetic sheet, wherein goes up permanent magnet and lower permanent magnet is installed on the contrary.
Preferably, the ledge of described magnetic conductive cylinder and the ledge of magnetic conductive board form the T-shaped magnetic circuit of symmetry.
Preferably, stator component is provided with gear cylinder, and magnetic conductive board and permanent magnet are pressed on the inwall of housing by described gear cylinder.
Preferably, low-frequency compensation parts are located at upper cover plate.
Preferably, low-frequency compensation parts include the low frequency digital compensator being made up of DSP and the amplification being made up of D class power amplifier
Device.
Preferably, upper and lower magnetic conductive board thickness is 8mm, and middle magnetic conductive board thickness is 16mm, and magnetic conductive board internal diameter is 40mm, permanent magnetism
Internal footpath is 28.6mm, and gas length is 11.5mm.
According to a further aspect in the invention, the start method bag of a kind of inertia-type actuator using described low-frequency compensation
Include following steps.
In first step, the inertia-type actuator of described low-frequency compensation is arranged on by effort formation.
In second step, compensate with the described low-frequency compensation parts contrary with the Frequency Response curve of inertia-type actuator
Low frequency characteristic.
In third step, coil passes to alternating current, when Lorentz force is more than spring leaf restoring force, and oscillator component overcomes
The restoring force of spring leaf and move towards the direction of Lorentz force, the when that Lorentz force being less than the restoring force of spring leaf, spring
Sector-meeting is played oscillator component toward the effect pulled back.
Compared with prior art, the inertia-type actuator advantage of the low-frequency compensation of the present invention is: first, low frequency of the present invention
The inertia-type actuator compensated is provided with the magnetic conductive cylinder of notch cuttype, employs the T-shaped magnetic circuit of symmetry, adds the ability of its poly-magnetic,
Decrease leakage field, improve the utilization rate of permanent magnet, increase the magnetic induction in air gap, serve certain lifting start
The effect of power, secondly, the inertia-type actuator of the low-frequency compensation of the present invention, by optimizing the size of each parameter of magnetic circuit, have found one
The individual active coil number of turn the most rational magnetic circuit size making to arrange, so that electromagnetic force suffered by moving-coil is maximum, again, the present invention
The inertia-type actuator of low-frequency compensation devise a moving-coil type and the oscillator of additional bigger quality, reduce used from structure
The natural frequency of property formula actuator, finally, the inertia-type actuator of the low-frequency compensation of the present invention is provided with low-frequency compensation module, to work
The low frequency characteristic of dynamic device has carried out a compensation, has widened its working band so that its low frequency characteristic more they tends to linearly.
Described above is only the general introduction of technical solution of the present invention, in order to make the technological means of the present invention clearer
Understand, reach the degree that those skilled in the art can be practiced according to the content of description, and in order to allow the present invention
Above and other objects, features and advantages can become apparent, illustrate with the detailed description of the invention of the present invention below
Explanation.
Accompanying drawing explanation
By reading the detailed description in hereafter preferred embodiment, the present invention various other advantage and benefit
Those of ordinary skill in the art be will be clear from understanding.Figure of description is only used for illustrating the purpose of preferred implementation,
And it is not considered as limitation of the present invention.It should be evident that drawings discussed below is only some embodiments of the present invention,
For those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain according to these accompanying drawings
Other accompanying drawing.And in whole accompanying drawing, it is presented with like reference characters identical parts.
In the accompanying drawings:
Fig. 1 is the structural representation of the inertia-type actuator of low-frequency compensation according to an embodiment of the invention；
Fig. 2 be the inertia-type actuator of low-frequency compensation according to an embodiment of the invention under different magnetic conductive board internal diameters
Electromagnetic force relation curve schematic diagram；
Fig. 3 be the inertia-type actuator of low-frequency compensation according to an embodiment of the invention under different air gap length
Electromagnetic force relation curve schematic diagram；
Fig. 4 is the low frequency of the low-frequency compensation parts of the inertia-type actuator of low-frequency compensation according to an embodiment of the invention
Compensate block diagram；
Fig. 5 is the structure of the low-frequency compensation parts of the inertia-type actuator of low-frequency compensation according to an embodiment of the invention
Schematic diagram；
Fig. 6 is the Frequency Response before and after the compensation of the inertia-type actuator of low-frequency compensation according to an embodiment of the invention
Contrast schematic diagram；
Fig. 7 is that the start method step of the inertia-type actuator using low-frequency compensation according to an embodiment of the invention shows
It is intended to.
Below in conjunction with drawings and Examples, the present invention is further explained.
Detailed description of the invention
It is more fully described the specific embodiment of the present invention below with reference to accompanying drawings.Although accompanying drawing shows the present invention's
Specific embodiment, it being understood, however, that may be realized in various forms the present invention and should not limited by embodiments set forth here
System.On the contrary, it is provided that these embodiments are able to be best understood from the present invention, and can be complete by the scope of the present invention
Convey to those skilled in the art.
It should be noted that employ some vocabulary in the middle of description and claim to censure specific components.Ability
Field technique personnel it would be appreciated that, technical staff may call same assembly with different nouns.This specification and right
In the way of requiring that difference by noun is not used as distinguishing assembly, but be used as distinguishing with assembly difference functionally
Criterion." comprising " or " including " as mentioned by the middle of description and claim in the whole text is an open language, therefore should solve
It is interpreted into " comprise but be not limited to ".Description subsequent descriptions be implement the present invention better embodiment, right described description be with
For the purpose of the rule of description, it is not limited to the scope of the present invention.Protection scope of the present invention is when regarding appended right
Require that defined person is as the criterion.
For ease of the understanding to the embodiment of the present invention, do as a example by several specific embodiments further below in conjunction with accompanying drawing
Explanation, and each accompanying drawing is not intended that the restriction to the embodiment of the present invention.
Fig. 1 is the structural representation of the inertia-type actuator of the low-frequency compensation of one embodiment of the present of invention, and the present invention is real
Execute example to be specifically described in conjunction with Fig. 1.
An embodiment provides the inertia-type actuator of a kind of low-frequency compensation, the inertia-type of low-frequency compensation is made
Dynamic device includes stator component, oscillator component and the low-frequency compensation parts being attached on described stator component, and described stator component includes
Magnetic conductive board 14,16,23, permanent magnet 15,24 and housing 3, described magnetic conductive board 14,16,23 and permanent magnet 15,24 are disposed on institute
State the inwall of housing 3, described oscillator component include spring leaf 2,6, operating bar 9, magnetic conductive cylinder 18, baffle plate 20, rubber ring 12 and line
Circle 11,13, the described low-frequency compensation parts with the Frequency Response contrary with the Frequency Response of inertia-type actuator include low frequency
Compensator 19 and power amplifier 22, stair-stepping magnetic conductive cylinder 18 is connected with operating bar 9 interference fit, dashing forward of described magnetic conductive cylinder 18
The outer felt playing part installs two rubber rings around the adjacent reverse coil 13 of multistage, the outside of the recessed portion of magnetic conductive cylinder 18
12, described coil 13 is clamped on described magnetic conductive cylinder 18 by described rubber ring 12 and baffle plate 20 jointly.
Stair-stepping magnetic conductive cylinder 18 in the inertia-type actuator of low-frequency compensation improves permanent magnet utilization rate by poly-magnetic, increases
Magnetic induction in big air gap, the outer felt of the jut of described magnetic conductive cylinder 18 is passed through around 3 sections of adjacent reverse coils 13
The active coil number of turn can arranged in optimizing each dimensional parameters raising air gap of magnetic circuit, improves further and is used as power；Described oscillator
Parts include the first and second spring leafs 2,6, operating bar 9, magnetic conductive cylinder 18, baffle plate 20, rubber ring 12 and coil 11,13, increase
Moving-coil quality, the described low-frequency compensation parts with the Frequency Response contrary with the Frequency Response of inertia-type actuator include low frequency
The mode that actuator low frequency is compensated by compensator 19 and power amplifier 22, improves low frequency characteristic.
The inertia-type actuator of low-frequency compensation devises a moving-coil type and the oscillator component of additional mass, magnetic conductive cylinder 18 1
Aspect serves the effect of poly-magnetic, on the other hand serves the effect increasing oscillator quality.
In one embodiment, from top to bottom, upper cover plate, gear cylinder, housing, lower cover fit together and define whole work
The shell of dynamic device；The outer ring of two pieces of spring leafs is attached separately between upper cover plate and gear cylinder and housing and lower cover, and spring leaf
Inner ring is fixed together with operating bar by the fixing baffle plate being then passed through both sides of train wheel bridge and lower plate respectively；Then, ladder
The through hole magnetic conductive cylinder 18 of shape is linked together by interference fit with operating bar 9, and only this uses interference at one；Finally, baffle plate with
Between rubber ring, and three sections of coils on the spaced winding of two rubber rings, adjacent two sections are around on the contrary.
In one embodiment, shown in Fig. 1, outer ring and the housing 3 of lower cover the 5, second spring leaf 6 are connected by screw 4
It is connected together；The inner ring of spring leaf is fixed together, separately with upper clip 7, lower clamping piece 8, baffle plate 20 and operating bar 9 by screw 10
Spring leaf 2 inner ring of side is same, and outer ring is then to be caught up with cover plate 1, gear cylinder 17 and housing 3 by screw to connect；Housing 3 interior
Wall is arranged in sequence with upper conduction magnetic board 16, upper permanent magnet 15, middle magnetic conductive board 14, lower permanent magnet 24, lower magnetic conductive board 23, and wherein two pieces forever
Magnet is contrary installation；Outer wall interference fit at operating bar 9 stair-stepping magnetic conductive cylinder 18, stair-stepping magnetic conductive cylinder 18
Jut outer felt is then to be installed with two rubber rings 12, rubber around 3 sections of adjacent reverse coils 13, the outside of recessed portion
Coil is clamped on magnetic conductive cylinder 18 by cushion rubber 12 and baffle plate 20 jointly.The magnetic circuit of the inertia-type actuator of the low-frequency compensation of the present invention
Trend is: the S pole of permanent magnet, to upper conduction magnetic board, is then passed through air gap to end-coil, then by magnetic conductive cylinder to intermediate coil, at warp
Cross air gap to middle magnetic conductive board, eventually pass back to the N pole of permanent magnet, the bulge loop of magnetic conductive cylinder and the ledge of magnetic conductive board define right
The T-shaped magnetic circuit claimed, this magnetic circuit can play the effect of poly-magnetic, decrease leakage field, makes the actual maximum of electromagnetic force close to theoretical
On maximum.
The inertia-type actuator working method of the low-frequency compensation of the present invention is: when passing to alternating current in coil 13, line
Circle will carry out moving of cutting magnetic induction line in the magnetic field of permanent magnet because of the effect by Lorentz force.Increasing along with electric current
Greatly, the Lorentz force suffered by coil is the biggest, when Lorentz force more than spring leaf restoring force when, whole oscillator will gram
Take spring leaf restoring force and towards Lorentz force direction move, and when electric current reduce make Lorentz force be less than spring leaf
The when of restoring force, spring leaf can play one by oscillator toward the effect pulled back.
In one embodiment, described stator component is provided with upper cover plate 1 and lower cover 5, and described upper cover plate 1 is via screw even
Connecing outer ring and the housing 3 of spring leaf 2, described lower cover 5 connects outer ring and the housing 3 of spring leaf 6 via screw 4.
In one embodiment, the inner ring of described spring leaf 2,6 is via screw 10 and upper clip 7, lower clamping piece 8, baffle plate 20
Affixed with operating bar 9.
In one embodiment, the inwall of described housing 3 is arranged in order upper conduction magnetic board 16, upper permanent magnet 15, middle magnetic conductive board
14, lower permanent magnet 24, lower magnetic conductive board 23, wherein goes up permanent magnet 15 and lower permanent magnet 24 is installed on the contrary.
In one embodiment, the ledge of described magnetic conductive cylinder 18 and the ledge of magnetic conductive board 14,16,23 formed right
The T-shaped magnetic circuit claimed.
In one embodiment, stator component is provided with gear cylinder 17, and described gear cylinder 17 is by magnetic conductive board 14,16,23 and permanent magnet
15 inwalls being pressed on housing 3.
In one embodiment, low-frequency compensation parts are located at upper cover plate 1.
In one embodiment, low-frequency compensation parts include the low frequency digital compensator being made up of DSP and by D class power amplifier structure
The amplifier become.
The electromagnetic force relation curve under different magnetic conductive board internal diameters of the inertia-type actuator of low-frequency compensation as shown in Figure 2
Schematic diagram, the shell sizes 100 × 110mm of inertia-type actuator, by test, along with the increase of permanent magnet internal diameter, electromagnetic force
First raising until permanent magnet internal diameter is when 0.028 meter, electromagnetic force reaches peak, and the increase electromagnetic force then as internal diameter drops
Low.The electromagnetic force relation curve schematic diagram under different air gap length of the inertia-type actuator of low-frequency compensation as shown in Figure 3,
By test, along with the increase of gas length, electromagnetic force first raises until breath length is when 0.0115 meter, and electromagnetic force reaches
High level, the increase electromagnetic force then as gas length reduces.Therefore, in one embodiment, upper and lower magnetic conductive board thickness is
8mm, middle magnetic conductive board thickness is 16mm, and magnetic conductive board internal diameter is 40mm, and permanent magnet internal diameter is 28.6mm, and gas length is
11.5mm。
The most preferably, the low-frequency compensation portion of the inertia-type actuator of low-frequency compensation as shown in Figure 4
The low-frequency compensation block diagram of part, inertia-type actuator integral installation is in controlled structure, and electromagnetic force is counter while putting on moving-coil to be made
Firmly put on structure.An equation is had for moving-coil:
Power for suffered by structure:
Above-mentioned two formulas are done Laplace conversion acquisition power transmission function is:
Wherein m is the quality of moving-coil, and c is moving-coil equivalent damping, and k is spring plate rigidity, and fm is electromagnetic force.
The transmission function that input signal uc of the inertia-type actuator of low-frequency compensation of the present invention and output are used as power between fs
Relation is
Magnetic induction in wherein Bg is air gap, L is the total length of active coil, and K is power amplifier gain, its low-frequency compensation
Being feedforward compensation, a low frequency contrary with the overall transfer function of actuator itself and power amplifier module by concatenation one is mended
Repay what module realized, i.e. concatenation one transmission function is
Iir digital filter with reach its low frequency performance is carried out from
The purpose that line compensates.Fig. 5 is the low-frequency compensation parts of the inertia-type actuator of low-frequency compensation according to an embodiment of the invention
Organigram, for not making compensator that the control signal of input is played the effect of amplification, thus affect follow-up power amplifier module
Performance, is therefore configured to inertia-type actuator Frequency Response the modulus value of a kind of formant both sides amplitude-versus-frequency curve and is 1, and
Phase-frequency characteristic is the new Frequency Response curve of the phase-frequency characteristic of actual inertia-type actuator.Use iir filter to this structure
The new Frequency Response of actuator carries out identification and obtains filter parameter [B, A], then compensating module and total frequency response of power amplifier module
Characteristic is the inverse of identification model, i.e. [A, B].Then the Frequency Response parameter of compensating module is [A/ (BgLK), B/ (BgLK)].
Fig. 6 is the Frequency Response before and after the compensation of the inertia-type actuator of low-frequency compensation according to an embodiment of the invention
Contrast schematic diagram, as shown in Figure 6, has widened its working band so that its low frequency characteristic more they tends to linearly, the low frequency of the present invention
The inertia-type actuator compensated significantly improves Frequency Response by the effect of low-frequency compensation parts.
See Fig. 7, use the start method of the inertia-type actuator of described low-frequency compensation to comprise the following steps.
In first step S1, the inertia-type actuator of described low-frequency compensation is arranged on by effort formation.
In second step S2, mend with the described low-frequency compensation parts contrary with the Frequency Response curve of inertia-type actuator
Repay low frequency characteristic.
In third step S3, coil 13 passes to alternating current, when Lorentz force is more than spring leaf restoring force, oscillator component
The restoring force of spring leaf is overcome to move towards the direction of Lorentz force, the when that Lorentz force being less than the restoring force of spring leaf,
Spring leaf can play oscillator component toward the effect pulled back.
Although embodiment of the present invention being described above in association with accompanying drawing, but the invention is not limited in above-mentioned
Specific embodiments and applications field, above-mentioned specific embodiments the most schematic, guiding rather than restricted
's.Those of ordinary skill in the art is under the enlightenment of this specification and in the scope protected without departing from the claims in the present invention
In the case of, it is also possible to making a variety of forms, these belong to the row of present invention protection.
Claims (10)
1. an inertia-type actuator for low-frequency compensation, it includes stator component, oscillator component and is attached on described stator component
Low-frequency compensation parts, it is characterised in that: described stator component includes magnetic conductive board (14,16,23), permanent magnet (15,24) and shell
Body (3), described magnetic conductive board (14,16,23) and permanent magnet (15,24) are disposed on the inwall of described housing (3), described oscillator
Parts include the first and second spring leafs (2,6), operating bar (9), magnetic conductive cylinder (18), baffle plate (20), rubber ring (12) and coil
(11,13), the described low-frequency compensation parts with the Frequency Response contrary with the Frequency Response of inertia-type actuator include low frequency
Compensator (19) and power amplifier (22), stair-stepping magnetic conductive cylinder (18) is connected with operating bar (9) interference fit, described magnetic conduction
The outer felt of the jut of cylinder (18) is around the adjacent reverse coil (13) of multistage, the outside peace of the recessed portion of magnetic conductive cylinder (18)
Fill two rubber rings (12), described rubber ring (12) and baffle plate (20) and jointly described coil (13) is clamped in described magnetic conductive cylinder
(18) on.
The inertia-type actuator of low-frequency compensation the most according to claim 1, it is characterised in that: preferably, described stator department
Part is provided with upper cover plate (1) and lower cover (5), and described upper cover plate (1) connects outer ring and the housing of the first spring leaf (2) via screw
(3), described lower cover (5) connects outer ring and the housing (3) of the second spring leaf (6) via screw (4).
The inertia-type actuator of low-frequency compensation the most according to claim 1, it is characterised in that: described first and second springs
The inner ring of sheet (2,6) is affixed with upper clip (7), lower clamping piece (8), baffle plate (20) and operating bar (9) via screw (10).
The inertia-type actuator of low-frequency compensation the most according to claim 1, it is characterised in that: the inwall of described housing (3)
It is arranged in order upper conduction magnetic board (16), upper permanent magnet (15), middle magnetic conductive board (14), lower permanent magnet (24), lower magnetic conductive board (23), wherein
Upper permanent magnet (15) and lower permanent magnet (24) are installed on the contrary.
The inertia-type actuator of low-frequency compensation the most according to claim 4, it is characterised in that: dashing forward of described magnetic conductive cylinder (18)
The ledge going out part and magnetic conductive board (14,16,23) forms the T-shaped magnetic circuit of symmetry.
The inertia-type actuator of low-frequency compensation the most according to claim 1, it is characterised in that: stator component is provided with gear cylinder
(17), magnetic conductive board (14,16,23) and permanent magnet (15,24) are pressed on the inwall of housing (3) by described gear cylinder (17).
The inertia-type actuator of low-frequency compensation the most according to claim 2, it is characterised in that: low-frequency compensation parts are located at
Cover plate (1).
The inertia-type actuator of low-frequency compensation the most according to claim 1, it is characterised in that: low-frequency compensation parts include by
Low frequency digital compensator (19) that DSP is constituted and the amplifier (22) that is made up of D class power amplifier.
The inertia-type actuator of low-frequency compensation the most according to claim 1, it is characterised in that: upper and lower magnetic conductive board thickness is
8mm, middle magnetic conductive board thickness is 16mm, and magnetic conductive board internal diameter is 40mm, and permanent magnet internal diameter is 28.6mm, and gas length is 11.5mm.
10. use a start method for the inertia-type actuator according to the low-frequency compensation according to any one of claim 1-9,
It comprises the following steps:
In first step (S1), the inertia-type actuator of described low-frequency compensation is arranged on by effort formation；
In second step (S2), compensate with the described low-frequency compensation parts contrary with the Frequency Response curve of inertia-type actuator
Low frequency characteristic；
In third step (S3), coil passes to alternating current in (13), when Lorentz force is more than spring leaf restoring force, oscillator component
The restoring force of spring leaf is overcome to move towards the direction of Lorentz force, the when that Lorentz force being less than the restoring force of spring leaf,
Spring leaf can play oscillator component toward the effect pulled back.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107387631A (en) * | 2017-08-28 | 2017-11-24 | 中国船舶重工集团公司第七〇九研究所 | A kind of self-induction reluctance type electromagnetic damper |
| CN108361307A (en) * | 2018-01-11 | 2018-08-03 | 株洲时代新材料科技股份有限公司 | A kind of vibration damping device |
| CN110027587A (en) * | 2019-04-22 | 2019-07-19 | 西南交通大学 | A kind of electromagnetic type inertia actuator |
| CN111810757A (en) * | 2020-07-23 | 2020-10-23 | 中国核动力研究设计院 | Initiative gallows device suitable for pipeline damping |
| CN113074208A (en) * | 2021-03-16 | 2021-07-06 | 广西科技大学 | Combined type magneto-rheological vibration damper |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101526121A (en) * | 2009-04-17 | 2009-09-09 | 哈尔滨工程大学 | Redundant variable pitch structure semiactive vibration-isolating actuator |
| CN102005890A (en) * | 2010-10-18 | 2011-04-06 | 南京航空航天大学 | Resonance type electromagnetic actuator |
| CN102410336A (en) * | 2011-11-07 | 2012-04-11 | 哈尔滨工程大学 | Coil external type semiactive vibration absorber in enclosed structure |
| CN203124239U (en) * | 2012-09-26 | 2013-08-14 | 中国船舶重工集团公司第七一一研究所 | Moving magnet type inertial electric actuator |
| CN103791013A (en) * | 2014-02-19 | 2014-05-14 | 哈尔滨工程大学 | Integrated type inertia electromagnetic actuator |
| CN104179868A (en) * | 2014-07-25 | 2014-12-03 | 哈尔滨工业大学 | Active and passive integrated electromagnetic vibration isolation device |
| CN104976263A (en) * | 2015-05-14 | 2015-10-14 | 上海交通大学 | Symmetric electromagnetic actuator |
| CN105429507A (en) * | 2015-12-12 | 2016-03-23 | 西安交通大学 | Piezoelectric torque actuator based on planar two-level displacement enlargement mechanism and actuating method thereof |
| CN205160331U (en) * | 2015-10-26 | 2016-04-13 | 南昌航空大学 | Novel inertia actuator |
-
2016
- 2016-08-31 CN CN201610793397.3A patent/CN106224421B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101526121A (en) * | 2009-04-17 | 2009-09-09 | 哈尔滨工程大学 | Redundant variable pitch structure semiactive vibration-isolating actuator |
| CN102005890A (en) * | 2010-10-18 | 2011-04-06 | 南京航空航天大学 | Resonance type electromagnetic actuator |
| CN102410336A (en) * | 2011-11-07 | 2012-04-11 | 哈尔滨工程大学 | Coil external type semiactive vibration absorber in enclosed structure |
| CN203124239U (en) * | 2012-09-26 | 2013-08-14 | 中国船舶重工集团公司第七一一研究所 | Moving magnet type inertial electric actuator |
| CN103791013A (en) * | 2014-02-19 | 2014-05-14 | 哈尔滨工程大学 | Integrated type inertia electromagnetic actuator |
| CN104179868A (en) * | 2014-07-25 | 2014-12-03 | 哈尔滨工业大学 | Active and passive integrated electromagnetic vibration isolation device |
| CN104976263A (en) * | 2015-05-14 | 2015-10-14 | 上海交通大学 | Symmetric electromagnetic actuator |
| CN205160331U (en) * | 2015-10-26 | 2016-04-13 | 南昌航空大学 | Novel inertia actuator |
| CN105429507A (en) * | 2015-12-12 | 2016-03-23 | 西安交通大学 | Piezoelectric torque actuator based on planar two-level displacement enlargement mechanism and actuating method thereof |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107387631A (en) * | 2017-08-28 | 2017-11-24 | 中国船舶重工集团公司第七〇九研究所 | A kind of self-induction reluctance type electromagnetic damper |
| CN108361307A (en) * | 2018-01-11 | 2018-08-03 | 株洲时代新材料科技股份有限公司 | A kind of vibration damping device |
| CN110027587A (en) * | 2019-04-22 | 2019-07-19 | 西南交通大学 | A kind of electromagnetic type inertia actuator |
| CN110027587B (en) * | 2019-04-22 | 2023-08-08 | 西南交通大学 | Electromagnetic inertial actuator |
| CN111810757A (en) * | 2020-07-23 | 2020-10-23 | 中国核动力研究设计院 | Initiative gallows device suitable for pipeline damping |
| CN113074208A (en) * | 2021-03-16 | 2021-07-06 | 广西科技大学 | Combined type magneto-rheological vibration damper |
| CN113074208B (en) * | 2021-03-16 | 2022-03-15 | 广西科技大学 | Combined type magneto-rheological vibration damper |
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|---|---|
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