CN203834722U - Self-powered type semi-active tuned mass damper - Google Patents
Self-powered type semi-active tuned mass damper Download PDFInfo
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- CN203834722U CN203834722U CN201420175346.0U CN201420175346U CN203834722U CN 203834722 U CN203834722 U CN 203834722U CN 201420175346 U CN201420175346 U CN 201420175346U CN 203834722 U CN203834722 U CN 203834722U
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Abstract
The utility model discloses a self-powered type semi-active tuned mass damper which comprises a mass block. A vertical spring, a magnetorheological fluid damper and a linear switching rotating mechanism are vertically arranged below the mass block. The upper end of the vertical spring, the upper end of the magnetorheological fluid damper and the upper end of the linear switching rotating mechanism are connected with the mass block. The lower end of the vertical spring and the lower end of the magnetorheological fluid damper are fixed to a controlled structure. The lower end of the linear switching rotating mechanism is connected with a power generator device. The output end of the power generator device is respectively connected with a rectifier and a controller module. The output end of the rectifier is connected with a storage battery. The output end of the storage battery is connected with a power stabilizer. The input end of the power stabilizer is connected with the output end of the controller module. The output end of the power stabilizer is connected with the magnetorheological fluid damper. According to the self-powered type semi-active tuned mass damper, self power supply and real-time adjustable damping force can be achieved, and the self-powered type semi-active tuned mass damper has the advantages of being high in power generating efficiency, less in damping unit power consumption, simple in structure and good in vibration reduction control performance.
Description
Technical field
The utility model belongs to engineering structures antivibration area, relate to a kind of tuned mass damper that is mainly used in the civil structure vibration isolations such as highrise building or Loads of Long-span Bridges, ocean platform, be specifically related to a kind of self-powered semi-active tuned mass damper without extra power supply.
Background technology
Civil engineering structure is under the external drives such as high wind, earthquake, wave, easily produce significantly vibration, affect the safety and comfort of structure, in order to alleviate or to suppress structure due to the caused response of dynamic loading, Chinese scholars research so far has also been developed numerous structural vibration control technology.Wherein the tuned damper based on power consumption energy-obsorbing and damping is applied, the most frequently used have tuned mass damper (TMD), Tuned Liquid (TLD), a tuning column damper (TLCD) etc., and simple and effective structural vibration device surely belongs to tuned mass damper (TMD).In order to increase the effectiveness in vibration suppression of tuned mass damper to engineering structures, numerous researchers have carried out research from tuned mass damper frequency modulation and damping aspect.On the one hand research is that tuning, the resistance trimming of electric energy or simultaneous tuning resistance trimming are provided from needs outside.As patent No. ZL200810159389.9, the patent of self-adapting frequency conversion tuning quality damping vibration attenuation apparatus and self-adapting frequency conversion method thereof, the little spring quality system that is formed specific intrinsic frequency by elastic component and little mass, the change rigidity drive system connecting by parallel connection or series system, realize a plurality of frequencies to by the vibration isolation of control structure; US Patent No. 006098969, with the patent of the structural vibration damper of continuous adjustable rigidity, regulates the angle of four springs by servo motor, realize the adjustable tuned mass damper of frequency; Patent No. ZL201110324243.7, become the patent of stiffness and damping changing tuned mass damper, by stepper motor, adjust the frequency of the length adjustment tuned mass damper of cantilever spring, by regulating the electric current of MR damper to change the damping ratio of tuned mass damper, realize rigidity and damping adjustable continuously, realize vertical and oscillation crosswise control.Research is the resistance trimming without external electric energy on the other hand.As patent No. ZL02145115.X, the patent of Tunable power consumption quality damper for power generator, adopt generator to make the TMD device of damper, generator passes through rack and pinion engagement, be connected to the quality of TMD, make quality when vibration, drive generator generating power consumption to form damping, change external load resistance and can change easily damped coefficient; Patent No. ZL201110443539.0, a kind of patent of adjustable damping energy storage type tuned mass damper, when absorbing main structure vibrational energy, damper causes in the reciprocating motion process of inertia mass, coil by permanent magnet electricity generating principle produces induced electromotive force, form the motion that electromagnetic damping suppresses permanent magnet, adjustable resistance in adjusting device, change the size of electromagnetic damping, make the damping ratio of structure reach optimal damper ratio, and utilize energy storage battery to reclaim excess energy, by LED early warning indicator lamp, to pedestrian and vehicle, provide early warning to indicate.From above-mentioned document analysis, when extra power cannot guarantee, must reduce the damping property of tuned mass damper; Damping without external electric energy regulates in addition, is only the passive adjusting of a kind of optimum, when needs damping real-time optimization, all cannot regulate in real time the damping size of tuned mass damper.
Summary of the invention
The purpose of this utility model is the defect existing for existing tuned mass damper, a kind of self-powered semi-active tuned mass damper without extra power supply is provided, it utilizes the mechanical energy of structure self vibration to be converted into the large feature of electric energy and damping force adjustable damping unit two, realize self-powered and damping force adjustable in real time, this damper has that generating efficiency is high, damping unit little power consumption, the feature that simple in structure, vibration damping control performance is good.
The purpose of this utility model realizes by the following technical solutions: this self-powered semi-active tuned mass damper, and for suppressing the vibration of the civil structures such as highrise building or Loads of Long-span Bridges, ocean platform, it comprises a mass; Vertical lower at described mass is provided with more than one uprighting spring and magnetic rheological liquid damper and straight line converting whirler structure; Described uprighting spring and magnetic rheological liquid damper are connected with mass with the upper end of straight line converting whirler structure, and the lower end of uprighting spring and magnetic rheological liquid damper is fixed on by control structure, and the lower end of straight line converting whirler structure is connected with rotor machine; The fuselage of described rotor machine is fixed, and its swing pinion is connected with straight line converting whirler structure, and its output is connected with controller module with rectifier respectively by wire; The output of rectifier is connected with battery by wire, the output of battery is connected with power stabilizer by wire, the input of power stabilizer is connected with the output of described controller module, and the output of power stabilizer is connected with described magnetic rheological liquid damper by wire.
Specifically, during actual coming into operation, can select according to specific needs the material of mass, adopt water tank or steel etc., and according to by the modal mass of control structure, select the weight of mass.
Described spring, can select the quantity such as 2,3 and 4 according to specific needs.According to by the weight of control structure and mass, can be by selecting different spring rates to carry out the intrinsic frequency of damping adjusting device.
Described magnetic rheological liquid damper, can select linear magnetorheologic liquid damper or rotary magnetorheological fluid damper according to specific needs.
Described straight line converting whirler structure, can select pinion and rack or ball wire rod mechanism according to specific needs, thereby the low frequency straight-line oscillation of mass can be changed into high speed rotary motion.
Described rotor machine, can select linear permanent-magnet formula generator or rotary permanent-magnet formula generator according to specific needs.
The mechanical energy that when the utility model utilizes controlled structural vibration, mass moves up and down, is converted into electric energy by rotor machine, and as the electric power supply of controller module, electric current of voltage regulation device and magnetic rheological liquid damper; According to generator voltage signal feedback, by the control algolithm of controller module, the damping real-time continuous that realizes magnetic rheological liquid damper is adjustable, and then realizes half ACTIVE CONTROL of tuned mass damper; It is excellent that damper of the present utility model has damping property, the feature without external electric energy supply that self adaptation regulates.
In sum, self-powered semi-active tuned mass damper of the present utility model is compared with existing tuned mass damper, and because having added energy recycle device and magnetic rheological liquid damper, tool has the following advantages:
(1) self-powered semi-active tuned mass damper operating principle of the present utility model is clear, good damping result.
(2) utilize the straight line converting whirler structure of rack-and-pinion or ball screw, make low frequency straight-line oscillation change high speed rotary motion into, increased the operating efficiency that vibration mechanical energy is converted into electric energy.
(3) increase the rotor machine of mechanical energy electric energy conversion, ensured when earthquake or high wind, when the required energy of vibration isolation cannot guarantee, realized half ACTIVE CONTROL of this damper without external electric energy supply.
(4) utilized the adjustable feature of magnetic rheological liquid damper damping size intelligence, by regulating size of current, the size of damping force is provided, replaced easily traditional viscous damper, in engineering application, be easy to realize half ACTIVE CONTROL characteristic, finally make structural vibration reduction reach optimal effectiveness.
Accompanying drawing explanation
Fig. 1 is the theory structure schematic diagram of the utility model embodiment;
Fig. 2 is half ACTIVE CONTROL principle process block diagram of the utility model embodiment real-time inspection and control system.
The specific embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Referring to Fig. 1, self-powered semi-active tuned mass damper of the present utility model can be used for the structural vibration control such as highrise building, Loads of Long-span Bridges and ocean platform, if be installed in the box girder of Loads of Long-span Bridges, the lower end of 2 times vertical direction uprighting springs 1 of mass directly anchor in case beam lower shoe, uprighting spring 1 is according to main beam structure vibration frequency, the intrinsic frequency of damping adjusting device; Magnetic rheological liquid damper 3 and straight line converting whirler structure 4 are installed respectively below mass 2; Magnetic rheological liquid damper 3 upper ends are connected with mass 2, and the size of damping force, in case beam lower shoe, when wire 15 provides different voltage to magnetic rheological liquid damper 3, is adjusted in lower end directly anchor; Straight line converting whirler structure 4 upper ends are connected with mass 2, and lower end is connected with rotor machine 5; The swing pinion of rotor machine 5 is connected with straight line converting whirler structure 4, rotor machine 5 fuselages directly anchor in case beam lower shoe; Mass 2 is when moving up and down, and straight line converting whirler structure 4 also moves up and down with mass 2, causes that the swing pinion of rotor machine 5 rotates, and rotor machine 5 generatings, are converted into electric energy the vibration mechanical energy of mass 2; Rotor machine 5 generate electricity can by wire 10 through rectifier 6, three-phase alternating current electric rectification, be direct current, then by wire 12 electrical power storage in battery 9; Simultaneously, controller module 7 measures by wire 11 voltage that rotor machine 5 produces, voltage can Real-time Feedback mass 2 moving displacement and speed, according to the real-time half active Optimal Damping Ratio control algorithm (as control algolithms such as Bang-Bang, neutral nets) of the tuned mass damper in controller module 7, send the voltage command signal of magnetic rheological liquid damper 3, voltage command signal is carried out by power stabilizer 8 by holding wire 13, and the power supply of power stabilizer 8 is provided by battery 9 by wire 14.When tuned mass damper is used for suppressing box-girder vertical motion, rotor machine 5 is converted into electric energy the vibration mechanical energy of girder, magnetic rheological liquid damper 3 is under the execution of power stabilizer 8, regulate in real time the required optimal damper of tuned mass damper, thereby make tuned mass damper reach optimum to the damping property of girder, whole system, in vibration damping half ACTIVE CONTROL implementation, is the self-powered tuned mass damper without extra power.
Above-mentioned mass 2, when moving up and down, by rotor machine 5, transforms electric energy the mechanical energy of system, for controller module 7 and power stabilizer 8 provide electric energy.
Above-mentioned magnetic rheological liquid damper 3, the in the situation that of Voltage Feedback mass moving displacement and speed, half Algorithm of Active Control of via controller module 7, can guarantee to provide in real time Tuned mass damper system optimal damper, improves system damping property.
Referring to Fig. 2, it is half ACTIVE CONTROL principle process block diagram of the utility model embodiment real-time inspection and control system.Its operating principle is: when main structure is interfered motion, drive tuned mass damper of the present utility model to vibrate together, the inertia force that tuned mass damper relative motion produces reacts in structure.The vibrational energy of main structure is transferred to additional TMD, and evokes the TMD generation amplitude more much bigger than main structure.The vibration mechanical energy of main structure is divided into two parts, and it is standby in battery that a part of mechanical energy is converted into electrical power storage by rotor machine, and another part is dissipated by the damping force of magnetic rheological liquid damper.When external drive changes, rotor machine Voltage Feedback goes out moving displacement and the speed responsive of system, half Algorithm of Active Control of via controller module, by electric current of voltage regulation device, it is power stabilizer, regulate the voltage of magnetic rheological liquid damper, change in real time the damping ratio of tuned mass damper, improve the damping efficiency of system, the best effectiveness in vibration suppression of assurance system.
Claims (5)
1. a self-powered semi-active tuned mass damper, it comprises a mass; It is characterized in that: the vertical lower at described mass is provided with more than one uprighting spring and magnetic rheological liquid damper and straight line converting whirler structure; Described uprighting spring and magnetic rheological liquid damper are connected with mass with the upper end of straight line converting whirler structure, and the lower end of uprighting spring and magnetic rheological liquid damper is fixed on by control structure, and the lower end of straight line converting whirler structure is connected with rotor machine; The fuselage of described rotor machine is fixed, and its swing pinion is connected with straight line converting whirler structure, and its output is connected with controller module with rectifier respectively by wire; The output of rectifier is connected with battery by wire, the output of battery is connected with power stabilizer by wire, the input of power stabilizer is connected with the output of described controller module, and the output of power stabilizer is connected with described magnetic rheological liquid damper by wire.
2. self-powered semi-active tuned mass damper according to claim 1, is characterized in that: described mass adopts water tank or steel.
3. self-powered semi-active tuned mass damper according to claim 1, is characterized in that: described magnetic rheological liquid damper is linear magnetorheologic liquid damper or rotary magnetorheological fluid damper.
4. self-powered semi-active tuned mass damper according to claim 1, is characterized in that: described straight line converting whirler structure comprises pinion and rack or ball wire rod mechanism.
5. self-powered semi-active tuned mass damper according to claim 1, is characterized in that: described rotor machine comprises linear permanent-magnet formula generator or rotary permanent-magnet formula generator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420175346.0U CN203834722U (en) | 2014-04-11 | 2014-04-11 | Self-powered type semi-active tuned mass damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420175346.0U CN203834722U (en) | 2014-04-11 | 2014-04-11 | Self-powered type semi-active tuned mass damper |
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| Publication Number | Publication Date |
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| CN203834722U true CN203834722U (en) | 2014-09-17 |
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| CN201420175346.0U Withdrawn - After Issue CN203834722U (en) | 2014-04-11 | 2014-04-11 | Self-powered type semi-active tuned mass damper |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103938751A (en) * | 2014-04-11 | 2014-07-23 | 湖南科技大学 | Self-powered semi-active tuned mass damper |
| CN107289066A (en) * | 2017-06-19 | 2017-10-24 | 同济大学 | A kind of adaptive eddy current tuned mass damper of self-powered |
| CN108797311A (en) * | 2018-07-18 | 2018-11-13 | 武汉理工大学 | A kind of eddy current tuned mass damper and design method for cable way bridge |
| CN109654162A (en) * | 2019-02-01 | 2019-04-19 | 青岛理工大学 | Actively compound variable damping control device for pivoting |
| EP3436718A4 (en) * | 2016-03-28 | 2019-11-27 | Robert Berry | Disruptive tuned mass system and method |
| WO2020155643A1 (en) * | 2019-02-01 | 2020-08-06 | 青岛理工大学 | Self-powered active-passive compound rotating inertia drive control system |
| WO2023131745A1 (en) * | 2021-08-26 | 2023-07-13 | Jptuf Oy | Method and equipment to produce electric energy from kinetic energy |
-
2014
- 2014-04-11 CN CN201420175346.0U patent/CN203834722U/en not_active Withdrawn - After Issue
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103938751A (en) * | 2014-04-11 | 2014-07-23 | 湖南科技大学 | Self-powered semi-active tuned mass damper |
| EP3436718A4 (en) * | 2016-03-28 | 2019-11-27 | Robert Berry | Disruptive tuned mass system and method |
| CN107289066A (en) * | 2017-06-19 | 2017-10-24 | 同济大学 | A kind of adaptive eddy current tuned mass damper of self-powered |
| CN108797311A (en) * | 2018-07-18 | 2018-11-13 | 武汉理工大学 | A kind of eddy current tuned mass damper and design method for cable way bridge |
| CN109654162A (en) * | 2019-02-01 | 2019-04-19 | 青岛理工大学 | Actively compound variable damping control device for pivoting |
| WO2020155643A1 (en) * | 2019-02-01 | 2020-08-06 | 青岛理工大学 | Self-powered active-passive compound rotating inertia drive control system |
| CN109654162B (en) * | 2019-02-01 | 2024-04-12 | 青岛理工大学 | Active composite damping-variable rotation control device |
| WO2023131745A1 (en) * | 2021-08-26 | 2023-07-13 | Jptuf Oy | Method and equipment to produce electric energy from kinetic energy |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140917 Effective date of abandoning: 20160302 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |