CN106284728A - Transient state kinetic energy absorption cell and its implementation and purposes - Google Patents
Transient state kinetic energy absorption cell and its implementation and purposes Download PDFInfo
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- CN106284728A CN106284728A CN201610848089.6A CN201610848089A CN106284728A CN 106284728 A CN106284728 A CN 106284728A CN 201610848089 A CN201610848089 A CN 201610848089A CN 106284728 A CN106284728 A CN 106284728A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/027—Preventive constructional measures against earthquake damage in existing buildings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/03—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using magnetic or electromagnetic means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
-
- 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
-
- 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
- F16F2222/08—Inertia
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- Business, Economics & Management (AREA)
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- Aviation & Aerospace Engineering (AREA)
- Environmental & Geological Engineering (AREA)
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- Structural Engineering (AREA)
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- Vibration Prevention Devices (AREA)
Abstract
The invention provides a kind of transient state kinetic energy absorption cell and its implementation and purposes, including dynamic absorber subelement；Described dynamic absorber subelement dynamically regulates natural frequency by actively changing stiffness by itself and/or quality, to carry out dynamic absorber.Principle is excited by impact, by the linear superposition being decomposed into multiple harmonic component excited by impact for suffered by transient state kinetic energy absorption cell；Frequency according to harmonic component, regulate the natural frequency of one or more dynamic absorber subelement, make the natural frequency coupling frequency corresponding to the identical harmonic component of frequency of dynamic absorber subelement, carry out absorbing or make vibration increase to guide transient state kinetic energy carrying out resonance.The present invention is directed to harmonic excitation or non-linear excitation, obtain and most preferably mate natural frequency with incentive characteristic frequency, and reach optimum actively or self-adapting power absorbing usefulness, it is possible to be applied to orient absorbing or vibration guiding device, the field such as self-propelling device and barycenter adjusting apparatus.
Description
Technical field
The present invention relates to vibration control field, in particular it relates to transient state kinetic energy absorption cell and its implementation and purposes.
Background technology
Dynamic vibration absorber comes across 1909 the earliest, and compared with vibration isolator, the advantage of dynamic vibration absorber is that it can be real
Existing miniaturization designs, destroys little to controlled device original structure and have outstanding damping performance simultaneously, and it shakes at machinery
The fields such as dynamic suppression, building damping have wide range of application.Dynamic vibration absorber is be widely used in engineering practice
Plant damping technology.It is by adding the i.e. power of subsystem with quality and rigidity inhale at the controlled master specific part being that shakes
Shake device, by reasonably select the kinetic parameter of dynamic vibration absorber, version and with the main coupled relation being that shakes, thus change
The main vibrational state being that shakes, makes energy redistribute, on the vibrational energy transfer that will lead shakes fastens to dynamic vibration absorber, thus
Main the shake vibration that be is reduced or eliminated.For the dynamic vibration absorber of single-degree-of-freedom mass-spring system generally can be reduced to and
Speech, it is simply that the quality of add-on subsystem will be tuned to its natural frequency with rigidity with main shaking is that driving frequency is identical, thus draws
Starting power bump leveller generation antiresonance, makes the controlled master vibrational energy being that shakes farthest be input on dynamic vibration absorber, reaches
It it is the purpose of vibration damping to controlled master is shaken.Owing to dynamic vibration absorber simple in construction, effectiveness in vibration suppression are obvious, easy to implement, therefore exist
Engineering practice is widely applied.
Dynamic vibration absorber engineer applied the earliest sees Frahm vibrationproof water tank of installation on Germany's ocean loner in 1909, but
Be at that time do not have the clearest and the most definite it essential structure and principle.Nineteen twenty-eight J.Ormondroyd and Den Hartog is by single freedom
The research of degree vibrational system, it is proposed that utilize the damping action of dynamic vibration absorber to reduce the dynamic vibration absorber of principal oscillation system amplitude
Design philosophy, it is determined that the existence of optimal damper, establishes dynamic tuning principle.On this basis, Hahnkamm utilizes amplitude
There is the fixed point phenomenon of two size the most dampened impacts on curve, be deduced the optimum people having the same aspiration and interest frequency of dynamic vibration absorber.With
After, Brock is deduced the relation of optimal damper in nineteen forty-six, defines the complete theory about traditional dynamic vibration absorber
System.From the beginning of last century middle and late stage, the research emphasis of people is mainly on the basis of tradition bump leveller, by changing structure
Feature, special material etc. is utilized constantly to seek to be suitable for the dynamic absorber technology of current Technical Development Requirement.Such as, many ponderomotive forces
Bump leveller, utilize the novel bump leveller that the intellectual material such as memorial alloy and magnetic rheological body designs.
Summary of the invention
For defect of the prior art, it is an object of the invention to provide a kind of transient state kinetic energy absorption cell and its implementation
And purposes.
A kind of transient state kinetic energy absorption cell provided according to the present invention, including dynamic absorber subelement；
Described dynamic absorber subelement dynamically regulates natural frequency by actively changing stiffness by itself and/or quality, with
Carry out absorbing or make vibration increase and then guide transient state kinetic energy.
Preferably, described dynamic absorber subelement includes absorbing pool structure body 1, movable mass 3, electrical generation components 5, motion
Guiding parts 8；Described dynamic absorber subelement also includes elastic connection medium 4 or is rotationally connected medium；
Movable mass 3 connects medium 4 by elasticity or is rotationally connected medium and is arranged in absorbing pool structure body 1；
Absorbing pool structure body 1 is also equipped with electrical generation components 5, motion guide parts 8；
Movable mass 3 moves along motion guide parts 8；
Electrical generation components 5 is generated electricity by the excitation of movable mass 3.
Preferably, described dynamic absorber subelement includes active energy loader 2；
Initiative ability loader 2 drives movable mass 3 to move or encourages elastic connection medium 4 deformation, to change
State the rigidity of dynamic absorber subelement；
Initiative ability loader 2 is arranged on absorbing pool structure body 1 internally and/or externally.
Preferably, described dynamic absorber subelement includes active mass loader 7:
Active mass loader 7 connects movable mass 3, to movable mass 3 load mass, to change the suction of described power
The quality of oscillator unit.
Preferably, the quantity of dynamic absorber subelement is:
The quantity of-dynamic absorber subelement is one；Or
The quantity of-dynamic absorber subelement is multiple, is fastenedly connected arrangement for array between multiple dynamic absorber subelements；
Wherein, in multiple dynamic absorber subelements, the direction of motion of movable mass 3 is the most identical, part is identical, all differ, or
Movable mass 3 random distribution in multiple dynamic absorber subelements.
Preferably, absorbing pool structure body 1 includes framework；
Movable mass 3 uses magnet；Magnet is any one in permanent magnet, ferromagnet, electromagnet or appoints multiple
Combination；
Elastic connect medium 4 use spring, hawser, grid body, ball of string body, lamellar body, cylinder, memorial alloy body, rubber bodies,
Gas pockets or liquid capsule；
Electrical generation components 5 uses generating solenoid, piezoelectric ceramic piece or magnetoelectricity converting material body；
Motion guide parts 8 form moving conduit, and movable mass 3 is limited in moving conduit, along moving conduit
Bearing of trend moves；
Wherein, generating solenoid is set in outside moving conduit, and piezoelectric ceramic piece is connected to elastic connection medium and framework
Between, magnetoelectricity converting material body is connected to elastic connection between medium and framework.
Preferably, described active energy loader 2 includes encouraging solenoid, thermal source, light source, liquid source or source of the gas；Its
In, excitation solenoid is arranged on outside or the inside of absorbing pool structure body 1.
Preferably, described active mass loader 7 includes that additional mass body accommodates chamber, additional mass body conveyance conduit；
Additional mass body accommodates chamber and connects movable mass 3, or the cavity within movable mass 3 forms additional mass
Body accommodates chamber；
Additional mass body conveyance conduit is communicated to additional mass body receiving chamber by outside extension of absorbing pool structure body 1；
Additional mass body conveyance conduit is that granule conveyance conduit, powder conduit road, gas transmission pipeline or liquid are defeated
Send pipeline.
The absorbent implementation method of a kind of Dynamic Test Transient provided according to the present invention, based on above-mentioned transient state kinetic energy absorption cell,
Excited by impact, by the linear superposition being decomposed into multiple harmonic component excited by impact for suffered by transient state kinetic energy absorption cell；
According to the frequency of harmonic component, regulate the natural frequency of one or more dynamic absorber subelement, make dynamic absorber
The natural frequency coupling of subelement corresponding to the frequency of the identical harmonic component of frequency, is carried out absorbing or makes vibration carrying out resonance
Increase to guide transient state kinetic energy.
The purposes of a kind of above-mentioned transient state kinetic energy absorption cell according to present invention offer or control method, including arbitrary
The mode of kind:
-by actively changing in described transient state kinetic energy absorption cell movable mass in one or more dynamic absorber subelements
Position, change the barycenter that described transient state kinetic energy absorption cell is overall, thus as barycenter adjusting apparatus；
-by moving in one or more dynamic absorber subelements in described transient state kinetic energy absorption cell within a time period
Mass body is driven, and the most instantaneous stopping drives, and makes described transient state kinetic energy absorption cell because of the bullet relative to absorbing pool structure body
Property potential energy obtains elastic force or inertia potential energy obtains inertia force and position occurs, thus as inertial drive moving body；
-by described transient state kinetic energy absorption cell, transient state kinetic energy is generated electricity, thus as converting kinetic energy sending out to electric energy
Electric installation, wherein, generating is to encourage power coil to generate electric energy by the scattered permanent magnet as movable mass, its
In, these scattered permanent magnets lay respectively in multiple dynamic absorber；Or
-by by multiple described transient state kinetic energy absorption cells, being distributed in frame body so that weaken or avoid frame body to send out
Raw vibration, thus as vibration absorber or shock preventing device, and as TRT.
Compared with prior art, the present invention has a following beneficial effect:
The present invention is directed to harmonic excitation or non-linear excitation, under operating mode excited by impact, dynamic adjusting system can be passed through
(rigidity of each dynamic absorber subelement or quality), and obtain and most preferably mate natural frequency with incentive characteristic frequency, and reach
To optimum active or self-adapting power absorbing usefulness.The present invention can be applied to orient absorbing or vibration guiding device, voluntarily
The fields such as walking apparatus and barycenter adjusting apparatus.
Accompanying drawing explanation
By the detailed description non-limiting example made with reference to the following drawings of reading, the further feature of the present invention,
Purpose and advantage will become more apparent upon:
The structural representation of the transient state kinetic energy absorption cell that Fig. 1 provides for the present invention.
, wherein, there is oppositely positioned with each other moving in the structural representation of the transient state kinetic energy absorption cell that Fig. 2 provides for the present invention
Power absorbing subelement.
The absorbing principle schematic of the transient state kinetic energy absorption cell that Fig. 3 provides for the present invention.
Fig. 4 is that the present invention is applied in the post of framed building and beam as vibration absorber or the schematic diagram of shock preventing device.
In figure:
100-transient state kinetic energy absorption cell
1-absorbing pool structure body
2-active energy loader
3-movable mass
4-elasticity connects medium
5-electrical generation components
6-external magnets
7-active mass loader
8-motion guide parts
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is described in detail.Following example will assist in the technology of this area
Personnel are further appreciated by the present invention, but limit the present invention the most in any form.It should be pointed out that, the ordinary skill to this area
For personnel, without departing from the inventive concept of the premise, it is also possible to make some changes and improvements.These broadly fall into the present invention
Protection domain.
A kind of transient state kinetic energy absorption cell provided according to the present invention, including dynamic absorber subelement；
Described dynamic absorber subelement dynamically regulates natural frequency by actively changing stiffness by itself and/or quality, with
Carry out absorbing or make vibration increase and then guide transient state kinetic energy.
Further, described dynamic absorber subelement includes absorbing pool structure body 1, movable mass 3, electrical generation components 5, fortune
Action-oriented parts 8；Described dynamic absorber subelement also includes elastic connection medium 4 or is rotationally connected medium；
Movable mass 3 connects medium 4 by elasticity or is rotationally connected medium and is arranged in absorbing pool structure body 1；
Absorbing pool structure body 1 is also equipped with electrical generation components 5, motion guide parts 8；
Movable mass 3 moves along motion guide parts 8；
Electrical generation components 5 is generated electricity by the excitation of movable mass 3.
Further, described dynamic absorber subelement includes active energy loader 2；
Initiative ability loader 2 drives movable mass 3 to move or encourages elastic connection medium 4 deformation, to change
State the rigidity of dynamic absorber subelement；
Initiative ability loader 2 is arranged on absorbing pool structure body 1 internally and/or externally.
Initiative ability loader 2 is by a kind of energy, electricity, electromagnetism, thermal source, light source, source of the gas etc. to be converted into motion matter
Amount body 3 connects medium 4 telescopic direction along elasticity and produces device device or the material bodies of moving displacement mechanical energy.
Further, described dynamic absorber subelement includes active mass loader 7:
Active mass loader 7 connects movable mass 3, to movable mass 3 load mass, to change the suction of described power
The quality of oscillator unit.
Further, the quantity of dynamic absorber subelement is:
The quantity of-dynamic absorber subelement is one；Or
The quantity of-dynamic absorber subelement is multiple, is fastenedly connected arrangement for array between multiple dynamic absorber subelements；
Wherein, in multiple dynamic absorber subelements, the direction of motion of movable mass 3 is the most identical, part is identical or all differs,
Or multiple dynamic absorber subelement random distributions.
Wherein, after the dynamic absorber subelement of multiple different-stiffness is rigidly connected and combines, it is possible to obtain multiple rigidity superposition
Transient state kinetic energy absorption cell, the transient state kinetic energy absorption cell of the most multiple natural frequency superposition, such that it is able to by non-linear, anharmonic wave
Impact converts the multiple harmonic excitation obtained and matches.Single dynamic absorber subelement can also constitute transient state kinetic energy absorption cell,
Its effect is good for single harmonic arousal effect, or single variable frequency excitation does frequency-tracking, and other are as effective in impact etc..Motion
When the direction of motion existence of mass body 3 differs, it is possible to achieve the absorbing of multidimensional.Array is point-line-surface body more than one any group
Close；Can be circular, square, annular etc. to be combined into corresponding overall knot according to actual controlled device by dynamic absorber subelement
Structure.
Further, absorbing pool structure body 1 includes framework；
Movable mass 3 uses magnet；Magnet is any one in permanent magnet, ferromagnet, electromagnet or appoints multiple
Combination；
Elastic connect medium 4 use spring, hawser, grid body, ball of string body, lamellar body, cylinder, memorial alloy body, rubber bodies,
Gas pockets or liquid capsule；
Electrical generation components 5 uses generating solenoid, piezoelectric ceramic piece or magnetoelectricity transformant；
Motion guide parts 8 form moving conduit, and movable mass 3 is limited in moving conduit, along moving conduit
Bearing of trend moves；
Wherein, generating solenoid is set in outside moving conduit, and piezoelectric ceramic piece is connected to elastic connection medium and framework
Between, magnetoelectricity transformant is connected to elastic connection between medium and framework.
To transient state kinetic energy absorption cell generally speaking, single permanent magnet is dispersed into multiple permanent magnet array, and by one big the most forever
Magnetism excitation changes multiple little permanent magnet excitation into, contributes to optimizing permanent magnetic, carries out permanent magnetic release and more efficient is converted into electric energy.
Further, described active energy loader 2 includes encouraging solenoid, thermal source, light source, liquid source or source of the gas；
Wherein, excitation solenoid is arranged on outside or the inside of absorbing pool structure body 1.Such as, excitation solenoid is arranged on suction
Shake the outside of pool structure body 1, constitutes external active energy loader, as movable mass near time, excitation solenoid with can
Carrying out interacting by reversed polarity repulsion for the movable mass of permanent magnet, (external active energy loader, as permanent magnet moves
After dynamic process terminates, with position lockable, and can no longer be energized and be to maintain repulsion effect)；External active energy loader also may be used
To be electromagnet, it is also possible to be inflatable bladders, promoted the effect of movable mass by the degrees of expansion of air bag.
Further, described active mass loader 7 includes that additional mass body accommodates chamber, additional mass body conveyance conduit；
Additional mass body accommodates chamber and connects movable mass 3, or the cavity within movable mass 3 forms additional mass
Body accommodates chamber；
Additional mass body conveyance conduit is communicated to additional mass body receiving chamber by outside extension of absorbing pool structure body 1；
Additional mass body conveyance conduit is that granule conveyance conduit, powder conduit road, gas transmission pipeline or liquid are defeated
Send pipeline.
Movable mass 3 can use the permanent magnet that can rotate, and permanent magnet rotating one end is installed additional mass body and accommodated chamber,
Or bias permanent magnet is arranged and one mass body of equivalence.The magnetic mode of driving of movable mass 3 can be: solenoid, or permanent magnet
By drive displacement positioning limit, the means changed as electromagnetic elasticity K.Each dynamic absorber subelement powers up magnetic induction line
Circle, Transient Electromagnetic damping energy dissipation and be rapidly electric energy by changes mechanical energy.Gas or liquid can be passed through online by valve unit
Pipeline loads and adjusts.
According to the control method of a kind of transient state kinetic energy absorption cell that the present invention provides, for suffered by transient state kinetic energy absorption cell
Excited by impact, by the linear superposition being decomposed into multiple harmonic component excited by impact；
According to the frequency of harmonic component, regulate the natural frequency of one or more dynamic absorber subelement, make dynamic absorber
The natural frequency coupling of subelement corresponding to the frequency of the identical harmonic component of frequency, is carried out absorbing or makes vibration carrying out resonance
Increase to guide transient state kinetic energy.
The interference excitation of any one harmonic wave or above anharmonic wave, non-linear excitation are the most excited by impact, can be equivalent to many
The linear superposition of individual harmonic component, the most any waveform all can stack up with harmonic wave ripple and obtain.Therefore, for class such as punching
Hit the nonlinear waveform excitations such as excitation, multiple harmonic wave interference excitation with different frequency component can be converted into, or decompose
The interference becoming the constant energy attenuation of some frequencies encourages.
Principle based on dynamic absorber, we can decompose for each or change stackable harmonic component out,
Corresponding dynamically one dynamic absorber subelement of adjustment.The natural frequency of this dynamic absorber subelement can be by driving control online
Mode change its rigidity k or quality m, thus change the natural frequency of dynamic absorber subelement, thus tracking and matching be corresponding
The multifrequency sinusoid interference components that one or more frequencies are identical, and then this interference components is carried out based on resonance kinetic absorbing
The energy maximization of principle absorbs.Wherein, each dynamic absorber subelement all can sense generating, and is sending out of resonance energy
Electricity, it is achieved generating and the optimal conversion of external drive energy.Such as, by transient state kinetic energy hypersorption pond, by all absorption energy (battle arrays
Local dynamic effect absorbing subelement resonance in row) it is completely converted into electric energy, absorbing the most in different directions finely tunes it forever
Magnet displacement changes magnetic attraction i.e. magnetoelasticity, with Equivalent Instantaneous K, and absorbs multifrequency, multidimensional transient state kinetic energy.
Wherein it is possible to utilize, automatic track algorithm is corresponding dynamically adjusts a dynamic absorber subelement: consume energy based on maximum
(resonance of most dynamic absorber unit/absorbing state), the greater value of transient current weights maximum as intermediate combination, for sentencing
According to；Installing acceleration transducer additional on transient state kinetic energy absorption cell, moved minimum of kinetic energy so that cell body structure is overall, acceleration is minimum
Criterion；Identification or transient state weights or parameter adjustment；Adjust rapidly after one-shot, then successive iteration optimizing, with optimal pond state
Corresponding subsequent impacts, realizes kinetic energy to electricity transformation of energy with optimal energy-absorbing.
Different initial or row after On-line Control confined state；Due to different compression degrees, this kind of elastic fluid
Stiffness variation under state, thus the change of the natural frequency of the oscillator of correspondence, can follow the tracks of the tracking frequency of correspondence；This
Compressive state can be adjusted by active energy loader, active mass loader, makes the rigidity value of different absorbing arbitrarily go here and there also
Joint group closes, and forms an optimal rigidity value, and system frequency (resultant effect, after system shock, its vibration received
Or whether transient state kinetic energy energy maximizes and absorbed by oscillator, and the motion response showing as whole device (moves integrally as
Little), can be used for being controlled the criterion of algorithm.
Furthermore it is possible to from the point of view of contrary, adjust rigidity, make vibration bigger, and form an artificial vibration or punching
Hit transmission channels, and realize vibration or the guiding of transient state kinetic energy.
Further, the present invention also provides for purposes or the control method of described transient state kinetic energy absorption cell, appoints including following
A kind of mode:
-by actively changing in described transient state kinetic energy absorption cell movable mass in one or more dynamic absorber subelements
Position, change the barycenter that described transient state kinetic energy absorption cell is overall, thus as barycenter adjusting apparatus；
-by moving in one or more dynamic absorber subelements in described transient state kinetic energy absorption cell within a time period
Mass body is driven, and the most instantaneous stopping drives, and makes described transient state kinetic energy absorption cell because of the bullet relative to absorbing pool structure body
Property potential energy obtains elastic force or inertia potential energy obtains inertia force and position occurs, thus as inertial drive moving body；
-by described transient state kinetic energy absorption cell, transient state kinetic energy is generated electricity, thus as converting kinetic energy sending out to electric energy
Electric installation, wherein, generating is to encourage power coil to generate electric energy by the scattered permanent magnet as movable mass, its
In, these scattered permanent magnets lay respectively in multiple dynamic absorber；About scattered permanent magnet: by by single permanent magnet
It is dispersed into the array with multiple permanent magnet, is i.e. replaced by multiple little permanent magnet excitation by a big permanent magnet excitation, contributes to excellent
Change permanent magnetic, carry out permanent magnetic release and more efficient be converted into electric energy；
-by by multiple described transient state kinetic energy absorption cells, being distributed in frame body so that weaken or avoid frame body to send out
Raw vibration, thus as vibration absorber or shock preventing device, and as TRT.Such as, as shown in Figure 4, can be by transient state
Kinetic energy absorption pond is fastenedly connected on the main body supporting members such as the post of framed building, beam, wall, with reach damping device or, shock-absorbing
The effect of device, thus protect building structure, and may also operate as the effect of TRT simultaneously.
Above the specific embodiment of the present invention is described.It is to be appreciated that the invention is not limited in above-mentioned
Particular implementation, those skilled in the art can make a variety of changes within the scope of the claims or revise, this not shadow
Ring the flesh and blood of the present invention.In the case of not conflicting, the feature in embodiments herein and embodiment can any phase
Combination mutually.
Claims (10)
1. a transient state kinetic energy absorption cell, it is characterised in that include dynamic absorber subelement；
Described dynamic absorber subelement dynamically regulates natural frequency by actively changing stiffness by itself and/or quality, to carry out
Absorbing or make vibration increase so that guide transient state kinetic energy.
Transient state kinetic energy absorption cell the most according to claim 1, it is characterised in that described dynamic absorber subelement includes absorbing
Pool structure body (1), movable mass (3), electrical generation components (5), motion guide parts (8)；Described dynamic absorber subelement also wraps
Include elastic connection medium (4) or be rotationally connected medium；
Movable mass (3) connects medium (4) by elasticity or is rotationally connected medium and is arranged in absorbing pool structure body (1)；
Absorbing pool structure body (1) is also equipped with electrical generation components (5), motion guide parts (8)；
Movable mass (3) moves along motion guide parts (8)；
Electrical generation components (5) is generated electricity by the excitation of movable mass (3).
Transient state kinetic energy absorption cell the most according to claim 2, it is characterised in that described dynamic absorber subelement includes actively
Energy loader (2)；
Initiative ability loader (2) drives movable mass (3) to move or encourages elastic connection medium (4) deformation, to change
The rigidity of described dynamic absorber subelement；
Initiative ability loader (2) is arranged on absorbing pool structure body (1) internally and/or externally.
Transient state kinetic energy absorption cell the most according to claim 2, it is characterised in that described dynamic absorber subelement includes actively
Quality loader (7):
Active mass loader (7) connects movable mass (3), to movable mass (3) load mass, to change described power
The quality of absorbing subelement.
Transient state kinetic energy absorption cell the most according to claim 1, it is characterised in that the quantity of dynamic absorber subelement is:
The quantity of-dynamic absorber subelement is one；Or
The quantity of-dynamic absorber subelement is multiple, is fastenedly connected arrangement for array between multiple dynamic absorber subelements；Its
In, in multiple dynamic absorber subelements, the direction of motion of movable mass (3) is the most identical, part is identical, all differ, or
Movable mass (3) random distribution in multiple dynamic absorber subelements.
Transient state kinetic energy absorption cell the most according to claim 2, it is characterised in that absorbing pool structure body (1) includes framework；
Movable mass (3) uses magnet；Magnet is any one in permanent magnet, ferromagnet, electromagnet or appoints multiple group
Close；
The elastic medium (4) that connects uses spring, hawser, grid body, ball of string body, lamellar body, cylinder, memorial alloy body, rubber bodies, gas
Somatocyst or liquid capsule；
Electrical generation components (5) uses generating solenoid, piezoelectric ceramic piece or magnetoelectricity converting material body；
Motion guide parts (8) form moving conduit, and movable mass (3) is limited in moving conduit, along moving conduit
Bearing of trend moves；
Wherein, generating solenoid is set in outside moving conduit, and piezoelectric ceramic piece is connected between elastic connection medium and framework,
Magnetoelectricity converting material body is connected to elastic connection between medium and framework.
Transient state kinetic energy absorption cell the most according to claim 3, it is characterised in that described active energy loader (2) includes
Excitation solenoid, thermal source, light source, liquid source or source of the gas；Wherein, excitation solenoid is arranged on absorbing pool structure body (1)
Outside or internal.
Transient state kinetic energy absorption cell the most according to claim 4, it is characterised in that described active mass loader (7) includes
Additional mass body accommodates chamber, additional mass body conveyance conduit；
Additional mass body accommodates chamber and connects movable mass (3), or the cavity formation additional mass that movable mass (3) is internal
Body accommodates chamber；
Additional mass body conveyance conduit is communicated to additional mass body receiving chamber by outside extension of absorbing pool structure body (1)；
Additional mass body conveyance conduit is granule conveyance conduit, powder conduit road, gas transmission pipeline or liquid delivery tube
Road.
9. the absorbent implementation method of Dynamic Test Transient, it is characterised in that based on the wink according to any one of claim 1 to 8
State kinetic energy absorption pond, excited by impact for suffered by transient state kinetic energy absorption cell, it is decomposed into multiple harmonic component by excited by impact
Linear superposition；
According to the frequency of harmonic component, regulate the natural frequency of one or more dynamic absorber subelement, make dynamic absorber list
The natural frequency coupling of unit corresponding to the frequency of the identical harmonic component of frequency, is carried out absorbing or makes vibration increase carrying out resonance
To guide transient state kinetic energy.
10. the purposes of the transient state kinetic energy absorption cell according to any one of claim 1 to 8 or a control method, its feature exists
In, including any one mode following:
-by actively changing in described transient state kinetic energy absorption cell the position of movable mass in one or more dynamic absorber subelements
Put, change the barycenter that described transient state kinetic energy absorption cell is overall, thus as barycenter adjusting apparatus；
-pass through within a time period moving-mass in one or more dynamic absorber subelements in described transient state kinetic energy absorption cell
Body is driven, and the most instantaneous stopping drives, and makes described transient state kinetic energy absorption cell because of the elastic potential relative to absorbing pool structure body
Elastic force can be obtained or inertia potential energy obtains inertia force and position occurs, thus as inertial drive moving body；
-by described transient state kinetic energy absorption cell, transient state kinetic energy is generated electricity, thus fill as converting the kinetic energy generating to electric energy
Putting, wherein, generating is by the scattered permanent magnet excitation power coil generation electric energy as movable mass, wherein, and this
A little scattered permanent magnets lay respectively in multiple dynamic absorber；Or
-by by multiple described transient state kinetic energy absorption cells, being distributed in frame body so that weaken or avoid frame body to shake
Dynamic, thus as vibration absorber or shock preventing device, and as TRT.
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| CN107060131A (en) * | 2017-06-15 | 2017-08-18 | 华侨大学 | A kind of distributed tuned mass damper, TMD |
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| CN113180710A (en) * | 2020-01-29 | 2021-07-30 | 通用电气精准医疗有限责任公司 | Method and system for reducing medical imaging vibrations |
| CN114704589A (en) * | 2022-04-21 | 2022-07-05 | 山东大学 | Local resonance type phononic crystal vibration reduction device and equipment |
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| CN114704589A (en) * | 2022-04-21 | 2022-07-05 | 山东大学 | Local resonance type phononic crystal vibration reduction device and equipment |
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