CN102619293A - Semi-active particle vibration damping device with truss structure - Google Patents
Semi-active particle vibration damping device with truss structure Download PDFInfo
- Publication number
- CN102619293A CN102619293A CN2012101046145A CN201210104614A CN102619293A CN 102619293 A CN102619293 A CN 102619293A CN 2012101046145 A CN2012101046145 A CN 2012101046145A CN 201210104614 A CN201210104614 A CN 201210104614A CN 102619293 A CN102619293 A CN 102619293A
- Authority
- CN
- China
- Prior art keywords
- vibration
- damping device
- coil
- current
- control module
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Vibration Prevention Devices (AREA)
Abstract
The invention discloses a semi-active particle vibration damping device with a truss structure. The truss structure is connected with a structure to be damped, the vibration damping device comprises magnetic-permeable metal particles, a coil, a current control module, a vibration pickup sensor and a direct-current power module, the magnetic-permeable metal particles are filled in a hollow steel tube of the truss structure, the coil is wound on the outer wall of the hollow steel tube, the current control module is connected with the coil, the vibration pickup sensor is disposed on the structure to be damped, and the current control module receives vibration signals picked up by the vibration pickup sensor and controls the direct-current signal module to output corresponding current to the coil after the vibration signals are processed. The vibration frequency of the structure to be damped can be tracked, the optimal damping ratio of a particle damper can be quickly adjusted, and accordingly the vibration attenuation performance of the semi-active particle vibration damping device within a broader frequency band range is improved. In addition, the semi-active particle vibration damping device is simple in structure and high in adaptability, and an extra space is omitted.
Description
Technical field
The invention belongs to building noise reduction technology field, relate in particular to granule damper in the trussed construction.
Background technology
Reform and open up to the outside world over 30 years, along with the high speed development of Chinese national economy and the raising of overall national strength, the technical level of Chinese Space structure has also obtained significant progress, just catches up with and surpass the international high standards.The social demand and the practical applications of space structures increase year by year; Particularly in recent years; Along with carrying out of rapid development of economy and a series of national great social and economical activities; Social public buildings such as China will build in nearly ten years that a collection of large ocean recovers the oil, the stadiums of the ocean platform of gas production and large quantities of high standard, high standard, exhibition hall, airport terminal; This will bring excellent opportunity to further developing of Chinese Space structure, also Chinese Space structure technology level had higher requirement simultaneously.Trussed construction is as a kind of important structure form of space structures, and this structural system has obtained using widely in buildings such as ocean platform, various large-scale stadium, cinema, conference and exhibition center, departure hall and all types of industries factory building.Especially after the violent earthquake of Wenchuan, the anti-seismic performance of building structure has received the very big concern of society.The anti-seismic performance that how to improve trussed construction has important engineering and is worth and social effect.
The particle damping is the damping form that on the basis of impact damping, develops, and is to process a series of vestibules in the inside configuration appropriate location, in these vestibules, inserts particle (like tungsten carbide, the grains of sand, steel ball etc.) then.During structural vibration; Through the contacting of structure hole wall and particle, collision effect its part kinetic energy is passed to particle, particle moves in the vestibule of structure, so take place between the particle, friction and collision between particle and the structure hole wall; These frictions will cause energy loss with the collision effect; Reduce the structural vibrations energy, reduce the structural vibrations amplitude, thereby reach the purpose that increases system damping.The particle damping need not change the appearance and size of structure and not increase additional mass basically, and vibration damping frequency band broad, and has advantage such as anti-aging, high-low temperature resistant, simultaneously its damping characteristic temperature influence not.Therefore, the particle damping has the prospect that is used for all kinds of structural vibration reductions, but the research at present aspect the truss vibration damping of particle damping in building structure such as ocean platform and being applied in does not both at home and abroad come into one's own as yet.
What all introduce about the patent CN200710052142.2 " a kind of roller washing machine wide band elastic granule damper " of granule damper vibration damping and patent CN200910007476.7 " nonobstructive microparticle damping sound insulation is overlapped " etc. at present is a kind of passive type particle damping unit; The compliance of this type passive vibration isolation device under the multi-state condition is relatively poor, especially can not isolate low frequency vibration effectively.
Summary of the invention
Goal of the invention: to the problem and shortage of above-mentioned existing existence, the purpose of this invention is to provide a kind of half active particle damping device of trussed construction, it can satisfy the effectiveness in vibration suppression under the wideer vibration frequency of structure.
Technical scheme: for realizing the foregoing invention purpose; The present invention adopts following technical scheme: a kind of half active particle damping device of trussed construction; Said trussed construction is connected with by vibration-proof structure; This vibration absorber comprises the magnetic conductive metal particle, the coil that is wrapped in the cavity outer wall of steel pipe, the current control module that is connected with coil that are filled in the trussed construction cavity steel pipe, is arranged on by pick-up sensor and DC power supplier on the vibration-proof structure; Wherein said current control module receives the vibration signal that the pick-up sensor sends, and controls DC power supplier after treatment coil is exported corresponding electric current.
The principle of the invention mainly is: go out its main vibration frequency by current control module according to the vibrational structure RESPONSE CALCULATION that measures; Give half active granule damper appropriate control electric current then; Make half active granule damper in this frequency range, have optimum damping ratio, thereby reach better effect of vibration and noise reduction.
As preferably, said DC control module adopts dsp controller, thus can be fast to the vibration signal of collection analyzing and processing in addition, activated reactions is rapid to external world to make vibration insulating system, has the effect of excellent vibration damping.
As preferably, the filling rate of said magnetic conductive metal particle is 30%～90% (100% filling rate is meant the state when particle fills up in the granule damper).
As preferably; Said DC power supplier comprises dc source and constant-current source circuit, and said dc source provides direct current, flows to coil and the control signal that constant-current source circuit sends according to dsp controller converts this direct current to corresponding electric current; Make the operating frequency of granule damper with identical by the vibration frequency of vibration-proof structure; Thereby make the particle in the granule damper reach resonance state, violent collision and friction can take place between the particle in this moment, consume the energy of whole system; Thereby reach the tracking vibration frequency, play better effectiveness in vibration suppression.
As preferably, said half initiatively granule damper only be installed in the bigger position of trussed construction vibration, thereby can obtain maximum effectiveness in vibration suppression with minimum cost.
Beneficial effect: compared with prior art, the present invention has the following advantages: can follow the tracks of the optimum damping ratio of being regulated granule damper by the vibration frequency of vibration-proof structure rapidly, thereby improve its damping property in broad frequency range more; And this apparatus structure is simple, need not exceptional space, and compliance is strong, good economy performance.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Wherein, by vibration-proof structure 1, trussed construction 2, magnetic conductive metal particle 3, coil 4, current control module 5, pick-up sensor 6, DC power supplier 7, constant-current source circuit 8, dc source 9, shock absorber 10, pedestal 11.
The specific embodiment
Below in conjunction with accompanying drawing and specific embodiment; Further illustrate the present invention; Should understand these embodiment only be used to the present invention is described and be not used in the restriction scope of the present invention; After having read the present invention, those skilled in the art all fall within the application's accompanying claims institute restricted portion to the modification of the various equivalent form of values of the present invention.
As shown in Figure 1; A kind of half active particle damping device of trussed construction; Comprise and trussed construction that is connected by vibration-proof structure 12 and the half active granule damper that is installed on the trussed construction 2; Should comprise magnetic conductive metal particle 3 that is filled in steel pipe inner chamber in the trussed construction 2 and the magnetic field generator that magnetic conductive metal particle 3 is acted on by half active granule damper, wherein the filling rate of magnetic conductive metal particle 3 is about 50%; Said magnetic field generator comprises the hot-wire coil 4 that is wrapped in trussed construction 2 outer wall of steel pipe, dc source 9 modules 7, current control module 5 and pick-up sensor 6; Hot-wire coil 4 diameters of wire that wherein are wrapped in outer wall of steel pipe are 0.2～1.5mm; Coil 4 numbers of turn are between 200～2000; And dc source 9 modules 7 comprise constant-current source circuit 8 and galvanic dc source 9 are provided; This constant-current source circuit 8 is connected with the current control module 5 that adopts dsp controller respectively at hot-wire coil 4, and pick-up sensor 6 is arranged on by on the vibration-proof structure 1.Its operating principle is: pick-up sensor 6 will collect vibration signal and send dsp controller to; And dsp controller carries out exporting the correspondent voltage control signal after the analyzing and processing to signal by the control algolithm that sets in advance; Thereby control constant-current source circuit 8 is defeated by hot-wire coil 4 corresponding size of current; Reach the damping characteristic effect that changes granule damper, realize half ACTIVE CONTROL of trussed construction 2.
The vibrational structure of applicable object of the present invention for adopting trussed construction 2 to support is like occasions such as buildings such as stadium, ocean platform trussed construction, power-equipments peculiar to vessel.Pick-up sensor 6 can measure the basis simultaneously and by multichannel vibration signals such as vibration-proof structures, the multichannel vibration signal is input in the dsp controller simultaneously, thereby controls.What need indicate is, trussed construction 2 is to be connected with pedestal 11 respectively with by vibration-proof structure 1 through shock absorber, and normal conditions are to adopt 4 supporting way, four shock absorbers 10 promptly evenly is set respectively both are connected.The all sites of trussed construction 2 all can be provided with granule damper as required in its steel pipe space, with the effectiveness in vibration suppression of raising system, in order to reduce cost, can only vibrate big position setting half active granule damper.
In implementation process; The vibration signal that control program in the dsp controller measures according to pick-up sensor 6 calculates by the vibration frequency of vibration-proof structure 1 (vibration damping object of protection), and output correspondent voltage control signal is controlled the electric current that dc source 9 offers half active granule damper to constant-current source circuit 8; Thereby can be so that its operating frequency is with identical by the vibration frequency of vibration-proof structure 1; Make the particle in the granule damper reach resonance state, between the particle in the granule damper violent collision and friction take place at this moment, consume the energy of whole system; Thereby reach the tracking vibration frequency, play effectiveness in vibration suppression.The truss of filler particles is with the coil 4 closely knit windings that can switch on; The electrical current size of coil 4 is the 0-1.0 ampere; The size of electric current has determined the size of contact force between particle in the coil 4, regulates the pressure distribution state that electric current can change granule damper, when vibration takes place structure; Can reach adjusting control particle damping capacity and make it have best damping ratio, in vibration insulating system, play best effectiveness in vibration suppression.
Claims (5)
1. half of trussed construction particle damping device initiatively; Said trussed construction (2) is connected with by vibration-proof structure (1); It is characterized in that: comprise the magnetic conductive metal particle (3), the coil (4) that is wrapped in the cavity outer wall of steel pipe, the current control module (5) that is connected with coil (4) that are filled in trussed construction (2) the cavity steel pipe, be arranged on by pick-up sensor (6) on the vibration-proof structure (1) and DC power supplier (7); Wherein said current control module (5) receives the vibration signal that pick-up sensor (6) sends, and through controlling DC power supplier (7) after the analyzing and processing coil (4) is exported corresponding electric current.
2. according to half active particle damping device of the said trussed construction of claim 1, it is characterized in that: said DC control module adopts dsp controller.
3. according to half active particle damping device of claim 1 or 2 said trussed constructions, it is characterized in that: the filling rate of said magnetic conductive metal particle (3) is 30%～90%.
4. according to half particle damping device initiatively of the said trussed construction of claim 2; It is characterized in that: said DC power supplier (7) comprises dc source (9) and constant-current source circuit (8); Said dc source (9) provides direct current, flows to coil (4) and the control signal that constant-current source circuit (8) sends according to dsp controller converts this direct current to corresponding electric current.
5. according to half active particle damping device of claim 1 or 2 said trussed constructions, it is characterized in that: said half active granule damper only is installed in the bigger position of trussed construction vibration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101046145A CN102619293A (en) | 2012-04-11 | 2012-04-11 | Semi-active particle vibration damping device with truss structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101046145A CN102619293A (en) | 2012-04-11 | 2012-04-11 | Semi-active particle vibration damping device with truss structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102619293A true CN102619293A (en) | 2012-08-01 |
Family
ID=46559476
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101046145A Pending CN102619293A (en) | 2012-04-11 | 2012-04-11 | Semi-active particle vibration damping device with truss structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102619293A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102888904A (en) * | 2012-10-23 | 2013-01-23 | 同济大学 | Novel two-dimensional tuning mass damper |
| CN104331541A (en) * | 2014-10-14 | 2015-02-04 | 江苏科技大学 | Semi-active particle damping vibration attenuation system and hybrid modeling analysis method thereof |
| CN104565163A (en) * | 2014-12-26 | 2015-04-29 | 江苏科技大学 | Semi-active vibration attenuation substrate and control method |
| CN106499239A (en) * | 2016-09-20 | 2017-03-15 | 北京工业大学 | A kind of piezoelectricity electromagnetism combined type collection energy vibration absorber |
| CN111005466A (en) * | 2018-06-26 | 2020-04-14 | 温州盖一机械有限公司 | Assembled friction energy dissipater and mounting method |
| CN111029098A (en) * | 2019-12-30 | 2020-04-17 | 江苏环东电气有限公司 | Vibration reduction method of controlled electromagnetic vibration reduction system |
| CN114962536A (en) * | 2022-05-11 | 2022-08-30 | 中国人民解放军海军工程大学 | Marine integrated vibration damping device with particle damper and control method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060180420A1 (en) * | 2003-11-01 | 2006-08-17 | Rongong Jem A | Vibration dampers |
| US20070080303A1 (en) * | 2005-10-11 | 2007-04-12 | Weiren Chou | Inductive load broadband RF system |
| JP2007248857A (en) * | 2006-03-16 | 2007-09-27 | Nakajima Kogyo:Kk | Vibration reducing member |
| CN101074049A (en) * | 2007-06-25 | 2007-11-21 | 哈尔滨工程大学 | Semi-active impact-resisting and bumping controller based electromagnetic vibration absorber |
| CN202021499U (en) * | 2011-03-30 | 2011-11-02 | 嘉兴学院 | Semi-automatic machine tool vibration isolation device based on magneto-rheological damping technology |
-
2012
- 2012-04-11 CN CN2012101046145A patent/CN102619293A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060180420A1 (en) * | 2003-11-01 | 2006-08-17 | Rongong Jem A | Vibration dampers |
| US20070080303A1 (en) * | 2005-10-11 | 2007-04-12 | Weiren Chou | Inductive load broadband RF system |
| JP2007248857A (en) * | 2006-03-16 | 2007-09-27 | Nakajima Kogyo:Kk | Vibration reducing member |
| CN101074049A (en) * | 2007-06-25 | 2007-11-21 | 哈尔滨工程大学 | Semi-active impact-resisting and bumping controller based electromagnetic vibration absorber |
| CN202021499U (en) * | 2011-03-30 | 2011-11-02 | 嘉兴学院 | Semi-automatic machine tool vibration isolation device based on magneto-rheological damping technology |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102888904A (en) * | 2012-10-23 | 2013-01-23 | 同济大学 | Novel two-dimensional tuning mass damper |
| CN104331541A (en) * | 2014-10-14 | 2015-02-04 | 江苏科技大学 | Semi-active particle damping vibration attenuation system and hybrid modeling analysis method thereof |
| CN104331541B (en) * | 2014-10-14 | 2017-08-11 | 江苏科技大学 | A kind of half active particles damping system and its hybrid modeling analysis method |
| CN104565163A (en) * | 2014-12-26 | 2015-04-29 | 江苏科技大学 | Semi-active vibration attenuation substrate and control method |
| CN104565163B (en) * | 2014-12-26 | 2017-04-05 | 江苏科技大学 | A kind of half active damping pedestal and control method |
| CN106499239A (en) * | 2016-09-20 | 2017-03-15 | 北京工业大学 | A kind of piezoelectricity electromagnetism combined type collection energy vibration absorber |
| CN106499239B (en) * | 2016-09-20 | 2019-01-29 | 北京工业大学 | A kind of piezoelectricity-Electromagnetic heating formula collection energy vibration absorber |
| CN111005466A (en) * | 2018-06-26 | 2020-04-14 | 温州盖一机械有限公司 | Assembled friction energy dissipater and mounting method |
| CN111029098A (en) * | 2019-12-30 | 2020-04-17 | 江苏环东电气有限公司 | Vibration reduction method of controlled electromagnetic vibration reduction system |
| CN111029098B (en) * | 2019-12-30 | 2022-05-31 | 江苏环东电气有限公司 | Controlled electromagnetic vibration reduction system and vibration reduction method |
| CN114962536A (en) * | 2022-05-11 | 2022-08-30 | 中国人民解放军海军工程大学 | Marine integrated vibration damping device with particle damper and control method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102619293A (en) | Semi-active particle vibration damping device with truss structure | |
| CN106907042B (en) | Multistage composite energy-absorbing energy-consuming vibration reduction device, application and method | |
| CN107268821B (en) | Multistage hybrid energy consumption vibration damper | |
| CN207032558U (en) | Multidimensional tunes electromagnetic energy-consumption vibration absorber | |
| CN105552813A (en) | Collision energy-dissipation spacing rod | |
| CN108716521A (en) | A kind of energy gathering apparatus based on nonlinear energy trap | |
| CN107268824A (en) | Multidimensional tunes electromagnetic energy-consumption vibration absorber | |
| CN106639471B (en) | Piezoelectric and electromagnetic composite energy-harvesting type semi-active frequency-modulation mass particle damper | |
| CN103526650B (en) | Passive type power vibration reduction floating slab track structure | |
| CN111042370A (en) | Semi-active negative stiffness multidimensional vibration damper | |
| CN107013073B (en) | Composite-structure magnetorheological elastomer isolator | |
| CN104595402A (en) | Electromagnetic branch circuit damping vibration absorber adopting ring-shaped permanent magnet | |
| CN203395063U (en) | Active electronic shock absorber | |
| CN206607944U (en) | Multistage composite type energy-absorbing energy-dissipating vibration absorber | |
| CN103184749A (en) | Base isolation non-contact limit system | |
| CN105337235A (en) | Electromagnetic vibration absorbing type smart vibration damper | |
| CN109138207A (en) | A kind of electric regenerative eddy current damper | |
| CN104565163A (en) | Semi-active vibration attenuation substrate and control method | |
| CN203256901U (en) | Shape memory alloy damping energy-consumption support | |
| CN206256734U (en) | Eddy current damper damping control device | |
| CN203285901U (en) | Variable-stiffness variable-damping bump leveler based on magneto-rheological fluid characteristics | |
| CN106639470A (en) | Vibration-attenuation control device for eddy current damper | |
| CN205298370U (en) | Multiple harmonious mass damper damping device of overhead type | |
| CN206758214U (en) | A kind of denoising structure for dry-type transformer | |
| CN206956965U (en) | A kind of multistage mixed type dissipative damping device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20120801 |