CN113026437A - Magneto-electric coupling nonlinear vibration reduction and power generation coarse particle device for transition section of railway road and bridge - Google Patents
Magneto-electric coupling nonlinear vibration reduction and power generation coarse particle device for transition section of railway road and bridge Download PDFInfo
- Publication number
- CN113026437A CN113026437A CN202110334519.3A CN202110334519A CN113026437A CN 113026437 A CN113026437 A CN 113026437A CN 202110334519 A CN202110334519 A CN 202110334519A CN 113026437 A CN113026437 A CN 113026437A
- Authority
- CN
- China
- Prior art keywords
- vibration
- energy
- damping
- magnetic
- power generation
- 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.)
- Granted
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B2/00—General structure of permanent way
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01B—PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
- E01B19/00—Protection of permanent way against development of dust or against the effect of wind, sun, frost, or corrosion; Means to reduce development of noise
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
Abstract
A magnetoelectric coupling nonlinear vibration reduction and power generation coarse particle device for a transition section of a railway road and bridge. The magnetoelectric coupling nonlinear vibration reduction and power generation coarse particle device comprises a stress conduction box, a piezoelectric energy harvesting module, a plurality of damping vibration reduction modules and a plurality of magnetic nonlinear vibration energy acquisition modules. The damping vibration attenuation module is used for absorbing the vibration energy of the stress conduction box and transmitting the vibration energy to the magnetic nonlinear vibration energy acquisition module; the magnetic force nonlinear vibration energy acquisition module is used for converting the received vibration energy into electric energy and transmitting the vibration energy into the piezoelectric energy harvesting module. Therefore, the magnetoelectric coupling nonlinear vibration-damping electricity-generating coarse particle device can absorb the vertical, transverse and axial three-dimensional vibration transmitted to the railway roadbed by the steel rail by combining the vibration damping and electricity generation of the vehicle-track-roadbed coupling dynamic model, and converts part of vibration energy generated by the train operation into electric energy.
Description
Technical Field
The application relates to the field of energy conservation and vibration reduction of a roadbed at a transition section of a railway road bridge, in particular to a coarse particle device for magnetoelectric coupling nonlinear vibration reduction and power generation at the transition section of the railway road bridge.
Background
Along with the continuous increase of the current railway train speed and axle weight, in addition, a road and bridge transition section is a weak part in railway construction, the rigidity difference of a embankment, a bridge and a culvert is large, so that the vibration of the road and bridge transition section is often large, the vibration problem caused by the train operation of the railway road and bridge transition section is increasingly remarkable, the safety and the stability of the train are influenced to a certain extent, and the larger vibration has a large influence on sensitive structures. At present, vibration reduction is mainly carried out on the railway subgrade by bonding damping materials on two sides of a steel rail, but the long-term stability of the bonding between the damping materials and the steel rail is difficult to guarantee, and the damping materials have the risk of falling off, so that hidden dangers are left for the safe operation of a high-speed train, and the constraint and protection cost for the long-term work of the damping materials is higher.
Disclosure of Invention
In order to solve the problems, the invention provides a magnetoelectric coupling nonlinear vibration damping power generation coarse particle device for a transition section of a railway road and bridge, which comprises a stress transmission box, a piezoelectric energy harvesting module, a plurality of damping vibration damping modules and a plurality of magnetic nonlinear vibration energy acquisition modules;
the stress transmission box comprises two first side plates and a plurality of second side plates; the two first side plates are oppositely arranged and provided with intervals; the plurality of second side plates are arranged around the two first side plates and connected with the first side plates and the second side plates;
the piezoelectric energy harvesting module, the damping vibration attenuation modules and the magnetic force nonlinear vibration energy acquisition modules are all positioned in the stress transmission box; the piezoelectric energy harvesting module is connected with the two first side plates; the plurality of damping vibration attenuation modules are connected with the plurality of second side plates in a one-to-one corresponding mode; the plurality of magnetic force nonlinear vibration energy acquisition modules are connected with the plurality of damping vibration attenuation modules in a one-to-one correspondence manner and surround the piezoelectric energy harvesting module;
the damping vibration attenuation module is used for absorbing the vibration energy of the stress conduction box and transmitting the vibration energy to the magnetic nonlinear vibration energy acquisition module; the magnetic force nonlinear vibration energy acquisition module is used for converting the received vibration energy into electric energy and transmitting the vibration energy to the piezoelectric energy harvesting module; the piezoelectric energy harvesting module is used for receiving the vibration energy and converting the received vibration energy into electric energy.
In one embodiment of the invention, the piezoelectric energy harvesting module comprises two first fixed blocks and a plurality of first piezoelectric vibrator units;
the two first fixed blocks are respectively connected with the two first side plates;
the plurality of first piezoelectric vibrator units correspond to the plurality of magnetic nonlinear vibration energy acquisition modules one by one, and each first piezoelectric vibrator unit is used for absorbing vibration energy output by the corresponding magnetic nonlinear vibration energy acquisition module and converting the received vibration energy into electric energy; the two ends of the first piezoelectric vibrator units are connected with the two first fixing blocks respectively, and the first piezoelectric vibrator units are arranged around the two first fixing blocks at intervals in sequence.
In one embodiment of the present invention, the first piezoelectric vibrator unit includes a first magnetic member, a first piezoelectric vibrator, and a second piezoelectric vibrator;
the first magnetic part is used for inducing the vibration of the corresponding magnetic nonlinear vibration energy acquisition module;
the first piezoelectric vibrator and the second piezoelectric vibrator are arranged at an included angle, one ends of the first piezoelectric vibrator and the second piezoelectric vibrator are connected with the first magnetic part, and the other ends of the first piezoelectric vibrator and the second piezoelectric vibrator are connected with the two first fixing blocks respectively.
In one embodiment of the invention, the damping vibration attenuation module comprises a second fixed block, an elastic piece and a rubber telescopic damping rod;
the second fixed block is connected with the second side plate that corresponds, and the one end and the second fixed block of the flexible damping rod of rubber are connected, and the other end of the flexible damping rod of rubber is towards the center of stress conduction case and is connected with the nonlinear vibration energy acquisition module of magnetic force, and the flexible damping rod of rubber is established to the elastic component cover.
In one embodiment of the invention, the magnetic nonlinear vibration energy acquisition module comprises a connecting block, a second piezoelectric vibrator unit and a second magnetic part;
the connecting blocks are connected with one ends of the corresponding rubber telescopic damping rods facing the center of the stress transmission box; the second piezoelectric vibrator unit is connected with the connecting block and the second magnetic piece; the second piezoelectric vibrator unit is used for absorbing the vibration energy of the connecting block and converting the received vibration energy into electric energy.
In one embodiment of the present invention, the second piezoelectric vibrator unit includes a third piezoelectric vibrator, a first connection piece, and a second connection piece;
the two opposite ends of the first connecting sheet are respectively connected with the two opposite ends of the second connecting sheet, and the part between the two ends of the first connecting sheet and the part between the two ends of the second connecting sheet are spaced to form a mounting area; the surface of the first connecting sheet departing from the second connecting sheet is connected with the connecting block, and the surface of the second connecting sheet departing from the first connecting sheet is connected with the second magnetic part;
the two opposite ends of the third piezoelectric vibrator are respectively connected with the two ends of the first connecting sheet and the two ends of the second connecting sheet, and the part of the third piezoelectric vibrator located in the mounting area is spaced from the first connecting sheet and the second connecting sheet.
In one embodiment of the invention, the magnetic nonlinear vibration energy collection module further comprises a mass block, and the mass block is connected with the connecting block.
In one embodiment of the invention, the piezoelectric energy harvesting module comprises a plurality of first magnetic members, the plurality of first magnetic members correspond to the plurality of magnetic nonlinear vibration energy harvesting modules one by one, and each first magnetic member has opposite magnetism to the second magnetic member of the corresponding magnetic nonlinear vibration energy harvesting module.
In one embodiment of the invention, the magnetoelectric coupling nonlinear vibration reduction and power generation coarse particle device further comprises an energy converter and an energy storage electrically connected with the energy converter, wherein the energy converter and the energy storage are both positioned in the stress transmission box;
the energy converter is electrically connected with the magnetic nonlinear vibration energy acquisition module and the piezoelectric energy harvesting module; the energy converter is used for receiving the alternating current electric energy converted by the magnetic nonlinear vibration energy acquisition module and the piezoelectric energy harvesting module, converting the alternating current electric energy into direct current electric energy and transmitting the direct current electric energy to the energy storage; the energy storage receives and stores the direct current electric energy output by the energy converter.
In a second aspect, the invention provides a magnetoelectric coupling nonlinear vibration-damping power-generating coarse particle device for a transition section of a railway road and bridge, which comprises a vibration-damping power-generating plate steel rail and the magnetoelectric coupling nonlinear vibration-damping power-generating coarse particle device;
the near-ground end of the vibration damping power generation coarse particle device is provided with a mounting groove, and the stress transmission box is matched with the mounting groove and used for absorbing vibration of the vibration damping power generation coarse particle device.
The invention has the beneficial effects that:
the magnetoelectric coupling nonlinear vibration reduction and power generation coarse particle device comprises a stress conduction box, a piezoelectric energy harvesting module, a plurality of damping vibration reduction modules and a plurality of magnetic nonlinear vibration energy acquisition modules. The damping vibration attenuation module is used for absorbing the vibration energy of the stress conduction box and transmitting the vibration energy to the magnetic nonlinear vibration energy acquisition module; the magnetic force nonlinear vibration energy acquisition module is used for converting the received vibration energy into electric energy and transmitting the vibration energy to the piezoelectric energy harvesting module; the piezoelectric energy harvesting module is used for receiving the vibration energy and converting the received vibration energy into electric energy.
The magnetoelectric coupling nonlinear vibration reduction and power generation coarse particle device can perform multistage vibration reduction through the piezoelectric energy harvesting module, the plurality of damping vibration reduction modules and the plurality of magnetic nonlinear vibration energy acquisition modules, and converts vibration energy into electric energy in the vibration reduction process. When the piezoelectric energy harvesting module, the damping vibration attenuation modules and the magnetic nonlinear vibration energy acquisition modules are arranged, the piezoelectric energy harvesting module, the damping vibration attenuation modules and the magnetic nonlinear vibration energy acquisition modules are arranged on different sides of the stress transmission box relatively, so that vertical, transverse and axial three-dimensional vibration transmitted to a roadbed by a steel reduction rail can be absorbed, the recovery density of vibration energy is obviously improved, and vibration energy generated by a vehicle-track-roadbed coupling structure is more comprehensively converted.
Therefore, the magnetoelectric coupling nonlinear vibration-damping electricity-generating coarse particle device can absorb vertical, transverse and axial three-dimensional vibration transmitted to a roadbed by a steel rail by combining vibration damping and electricity generation of a vehicle-rail-roadbed coupling dynamic model, and converts part of vibration energy generated by train operation into electric energy, thereby achieving the purposes of vibration damping and energy saving.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.
FIG. 1 is a schematic structural diagram of a first view angle of a magnetoelectric coupling nonlinear vibration reduction and power generation coarse particle device according to the present invention;
FIG. 2 is a schematic structural diagram of a second view angle of the magnetoelectric coupling nonlinear vibration-damping power generation coarse particle device according to the present invention;
FIG. 3 is a schematic diagram of the structure of the damping power generation plate and the magnetoelectric coupling nonlinear damping power generation coarse particles of the present invention;
FIG. 4 is a schematic structural diagram of a first view angle of the magnetoelectric coupling nonlinear vibration damping power generation coarse particle of the present invention;
FIG. 5 is a schematic structural diagram of a second view angle of the magnetoelectric coupling nonlinear vibration damping power generation coarse particle of the present invention;
FIG. 6 is a schematic structural diagram of a damping vibration attenuation module and a magnetic nonlinear vibration energy collection module according to the present invention;
fig. 7 is a circuit diagram of an energy converter and an energy storage device according to the present invention.
Icon: 200-magnetoelectric coupling nonlinear vibration reduction power generation coarse particle device; 210-a vibration damping power generation plate; 230-ground base; 100-magnetoelectric coupling nonlinear vibration reduction power generation coarse particles; 110-a stress-conducting box; 120-a piezoelectric energy harvesting module; 130-damping vibration attenuation module; 140-a magnetic force nonlinear vibration energy acquisition module; 111-a first side panel; 112-a second side panel; 121-a first fixing block; 122-a first piezoelectric vibrator unit; 123-a first magnetic member; 124-a first piezoelectric vibrator; 125-a second piezoelectric vibrator; 131-a second fixed block; 132-an elastic member; 133-rubber telescopic damping rod; 141-connecting block; 142-a second piezoelectric vibrator unit; 143-a second magnetic member; 144-a third piezoelectric vibrator; 145-first connecting piece; 146-a second connecting piece; 147-a mounting area; 148-mass block; 150-an energy converter; 160-energy storage.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the embodiments of the present application, it should be noted that the indication of orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship which is usually placed when the product of the application is used, or the orientation or positional relationship which is usually understood by those skilled in the art, or the orientation or positional relationship which is usually placed when the product of the application is used, and is only for the convenience of describing the application and simplifying the description, but does not indicate or imply that the indicated device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the application. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present application, it should also be noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," and "connected" are to be construed broadly, and may for example be fixedly connected, detachably connected, or integrally connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
With the continuous increase of the speed and the axle weight of the current railway, the vibration problem caused by the train operation is increasingly prominent, the influence on sensitive buildings is larger, the current main research is concentrated on the vibration and noise reduction aspect of a track structure, and the research on the vibration reduction and power generation aspect is less. In the prior art, the roadbed damping steel rail is mainly subjected to damping by damping to restrict the roadbed damping steel rail, partial vibration energy is dissipated, the influence of vibration on the environment is reduced, and if the dissipated vibration energy can be converted into electric energy to be utilized, the new energy can be more favorably developed and utilized.
Referring to fig. 1-7, the present invention provides a magnetoelectric coupling nonlinear vibration-damping power-generating coarse particle device 200, which includes a vibration-damping power-generating plate 210 and a magnetoelectric coupling nonlinear vibration-damping power-generating coarse particle 100; damping power generation panel 210 is connected with ground 230, and the near-ground end of be provided with the mounting groove, stress conduction case 110 and mounting groove cooperation for absorb damping power generation panel 210's vibration.
The magnetoelectric coupling nonlinear vibration damping and power generation coarse particles 100 are used for absorbing vibration generated when a train runs on the vibration damping and power generation plate 210, and converting the absorbed vibration energy into electric energy.
Specifically, the magnetoelectric coupling nonlinear vibration damping and power generation coarse particle 100 includes a stress conduction box 110, a piezoelectric energy harvesting module 120, a plurality of damping vibration damping modules 130, and a plurality of magnetic nonlinear vibration energy harvesting modules 140.
The stress transmission box 110 includes two first side plates 111 and a plurality of second side plates 112; the two first side plates 111 are arranged oppositely and provided with intervals; a plurality of second side plates 112 are arranged around the two first side plates 111, and are connected with the first side plates 111 and the second side plates 112; it should be noted that, in the present embodiment, first, the stress conduction box 110 is a cube structure, and the strength and the rigidity thereof meet the use requirements, so that it has four second side plates 112, and based on this, the coarse magnetoelectric coupling nonlinear vibration damping and power generation particles 100 include four damping vibration damping modules 130 and a magnetic nonlinear vibration energy collecting module 140; secondly, the stress-transmitting case 110 is a closed case, which is intended to ensure an internal working environment,
secondly, the contact area with the vibration reduction power generation plate 210 is increased, thereby improving the transmission efficiency of the stress; in other embodiments of the present invention, the structure of the stress conduction box 110 may also be adaptively adjusted according to different requirements, and at the same time, the number of the damping vibration-damping modules 130 and the number of the magnetic nonlinear vibration energy harvesting modules 140 should also be adaptively adjusted.
The piezoelectric energy harvesting module 120, the damping vibration attenuation modules 130 and the magnetic nonlinear vibration energy collecting modules 140 are all positioned in the stress transmission box 110; the piezoelectric energy harvesting module 120 is connected with the two first side plates 111; the plurality of damping vibration attenuation modules 130 are connected with the plurality of second side plates 112 in a one-to-one correspondence manner; the plurality of magnetic nonlinear vibration energy acquisition modules 140 are correspondingly connected with the plurality of damping vibration attenuation modules 130 one by one and surround the piezoelectric energy harvesting module 120;
it should be noted that the current vehicle-track-roadbed coupling dynamic models are divided into vertical, transverse and longitudinal dynamic models, and the recovery of vibration energy transferred to the roadbed by the track is mainly directed to the recovery of vertical energy. In the current steel rail vibration reduction design, the vibration reduction and noise reduction of the vertical vibration of the steel rail are mainly focused. In the actual wheel-rail contact process, due to the reasons of track irregularity, train unbalance loading, double-line train meeting and the like, the vibration-damping power generation plate 210 can generate transverse and axial vibration in the train running process, so that the piezoelectric energy harvesting module 120, the plurality of damping vibration-damping modules 130 and the plurality of magnetic nonlinear vibration energy acquisition modules 140 can absorb the vibration of the vibration-damping power generation plate 210 in different spatial dimensions in such a way, and the vertical, transverse and axial vibration of the vibration-damping power generation plate 210 can be absorbed in such a way.
The damping vibration attenuation module 130 is used for absorbing the vibration energy of the stress conduction box 110 and transmitting the vibration energy to the magnetic nonlinear vibration energy collection module 140; the magnetic force nonlinear vibration energy collection module 140 is used for converting the received vibration energy into electric energy and for transferring the vibration energy into the piezoelectric energy harvesting module 120; the piezoelectric energy harvesting module 120 is configured to receive vibrational energy and convert the received vibrational energy into electrical energy.
The invention has the beneficial effects that:
the magnetoelectric coupling nonlinear vibration damping and power generating coarse particle 100 in the magnetoelectric coupling nonlinear vibration damping and power generating coarse particle device 200 comprises a stress transmission box 110, a piezoelectric energy harvesting module 120, a plurality of damping vibration damping modules 130 and a plurality of magnetic nonlinear vibration energy collecting modules 140. The damping vibration attenuation module 130 is used for absorbing the vibration energy of the stress conduction box 110 and transmitting the vibration energy to the magnetic nonlinear vibration energy collection module 140; the magnetic force nonlinear vibration energy collection module 140 is used for converting the received vibration energy into electric energy and for transferring the vibration energy into the piezoelectric energy harvesting module 120; the piezoelectric energy harvesting module 120 is configured to receive vibrational energy and convert the received vibrational energy into electrical energy.
The magnetoelectric coupling nonlinear vibration damping and power generation coarse particle 100 can perform multistage vibration damping through the piezoelectric energy harvesting module 120, the plurality of damping vibration damping modules 130 and the plurality of magnetic nonlinear vibration energy acquisition modules 140, and converts vibration energy into electric energy in the vibration damping process. When the piezoelectric energy harvesting module 120, the damping vibration attenuation modules 130 and the magnetic nonlinear vibration energy collecting modules 140 are arranged, the piezoelectric energy harvesting module 120, the damping vibration attenuation modules 130 and the magnetic nonlinear vibration energy collecting modules 140 are relatively arranged on different side surfaces of the stress transmission box 110, so that vertical, transverse and axial three-dimensional vibration of the vibration reduction power generation plate 210 can be absorbed, the recovery density of vibration energy is obviously improved, and vibration energy generated by a more comprehensive conversion track structure is obtained.
Therefore, the magnetoelectric coupling nonlinear vibration-damping electricity-generating coarse particle device 200 can absorb vertical, transverse and axial three-dimensional vibration of the vibration-damping electricity-generating plate 210 by combining vibration damping and electricity generation of a vehicle-track-roadbed coupling dynamic model, and convert part of vibration energy generated by train operation into electric energy. In addition, by adopting the mode, each structure of the magnetoelectric coupling nonlinear vibration-damping power generation coarse particle device 200 is produced independently, and large-scale production and construction are easy to realize, so that the use cost can be reduced.
Further, referring to fig. 1 to 6, in the present embodiment, the piezoelectric energy harvesting module 120 includes two first fixed blocks 121 and a plurality of first piezoelectric vibrator units 122; the two first fixing blocks 121 are respectively connected with the two first side plates 111;
the plurality of first piezoelectric vibrator units 122 correspond to the plurality of magnetic nonlinear vibration energy collecting modules 140 one by one, and each first piezoelectric vibrator unit 122 is used for absorbing the vibration energy output by the corresponding magnetic nonlinear vibration energy collecting module 140 and converting the received vibration energy into electric energy; both ends of the plurality of first piezoelectric vibrator units 122 are respectively connected with the two first fixing blocks 121, and the plurality of first piezoelectric vibrator units 122 are sequentially arranged around the two first fixing blocks 121 at intervals.
In the present embodiment, referring to fig. 1 to 6, when the first piezoelectric vibrator unit 122 is disposed, the first piezoelectric vibrator unit 122 includes a first magnetic member 123, a first piezoelectric vibrator 124 and a second piezoelectric vibrator 125;
the first magnetic member 123 is used for inducing vibration of the corresponding magnetic nonlinear vibration energy collecting module 140;
the first piezoelectric vibrator 124 and the second piezoelectric vibrator 125 are arranged at an included angle, one end of each of the first piezoelectric vibrator 124 and the second piezoelectric vibrator 125 is connected with the first magnetic part 123, and the other end of each of the first piezoelectric vibrator 124 and the second piezoelectric vibrator 125 is connected with the two first fixing blocks 121.
In the present embodiment, referring to fig. 1 to 6, when the damping vibration attenuation module 130 is disposed, the damping vibration attenuation module 130 includes a second fixed block 131, an elastic member 132 and a rubber telescopic damping rod 133;
the second fixing block 131 is connected to the corresponding second side plate 112, one end of the rubber telescopic damping rod 133 is connected to the second fixing block 131, the other end of the rubber telescopic damping rod 133 faces the center of the stress conduction box 110 and is connected to the magnetic nonlinear vibration energy collection module 140, and the elastic member 132 is sleeved on the rubber telescopic damping rod 133.
In the present embodiment, please refer to fig. 1 to 6, when the magnetic nonlinear vibration energy harvesting module 140 is disposed. The magnetic nonlinear vibration energy collecting module 140 comprises a connecting block 141, a second piezoelectric vibrator unit 142 and a second magnetic part 143;
the connecting block 141 is connected to one end of the corresponding rubber telescopic damping rod 133 facing the center of the stress transmission box 110; the second piezoelectric vibrator unit 142 is connected to the connection block 141 and the second magnetic member 143; the second piezoelectric vibrator unit 142 is used to absorb the vibration energy of the connection block 141 and convert the received vibration energy into electric energy.
In the present embodiment, referring to fig. 1 to 6, when the second piezoelectric vibrator unit 142 is disposed, the second piezoelectric vibrator unit 142 includes a third piezoelectric vibrator 144, a first connection piece 145 and a second connection piece 146;
opposite ends of the first connection piece 145 are connected to opposite ends of the second connection piece 146, respectively, and a portion between the opposite ends of the first connection piece 145 is spaced apart from a portion between the opposite ends of the second connection piece 146 and forms a mounting region 147; the surface of the first connecting piece 145 facing away from the second connecting piece 146 is connected with the connecting block 141, and the surface of the second connecting piece 146 facing away from the first connecting piece 145 is connected with the second magnetic piece 143;
opposite ends of the third piezoelectric vibrator 144 are connected to both ends of the first connection piece 145 and both ends of the second connection piece 146, respectively, and a portion of the third piezoelectric vibrator 144 located in the mounting region 147 is spaced apart from the first connection piece 145 and the second connection piece 146.
In the present embodiment, a piezoelectric ceramic material is used for each of the first piezoelectric vibrator 124, the second piezoelectric vibrator 125, and the third piezoelectric vibrator 144. For the vibration reduction power generation of the railway track, the piezoelectric ceramics for vibration reduction has higher rigidity and higher natural frequency of the material, in order to improve the conversion ratio of vibration energy, the frequency of external excitation is required to be closer to the natural vibration frequency of the vibration reduction structure, and the external excitation caused by the train motion is low-frequency vibration, so the design and optimization of the piezoelectric vibration reduction structure are pointed, the low-frequency vibration caused by the train can be effectively reduced, and the working frequency band of the vibration reduction power generation plate 210 is increased. Based on this, the magnetic nonlinear vibration energy collection module 140 further includes a mass 148, and the mass 148 is connected with the connection block 141. The mass of the mass 148 is determined according to the desired natural frequency of vibration of the magnetic nonlinear vibration energy harvesting module 140. In this manner, the natural frequency of the piezo ceramic structure can be tuned by changing the mass of the mass 148 to accommodate the frequency of the off-track excitation, improving the conversion storage of vibrational energy. It should be noted that, by connecting the mass blocks 148 with different masses, the natural frequency of the magnetic nonlinear vibration energy collecting module 140 is adjusted, so that the vibration damping effect is optimal.
In this embodiment, referring to fig. 1 to 6, the piezoelectric energy harvesting module 120 includes a plurality of first magnetic members 123, the plurality of first magnetic members 123 correspond to the plurality of magnetic nonlinear vibration energy harvesting modules 140 one by one, and each of the first magnetic members 123 has a magnetic property opposite to that of the second magnetic member 143 of the corresponding magnetic nonlinear vibration energy harvesting module 140. That is, in the present embodiment, a magnetic force transmission method is adopted to transmit the vibration of the magnetic nonlinear vibration energy harvesting module 140 to the piezoelectric energy harvesting module 120.
Referring to fig. 1 to 7, in an embodiment of the present invention, the coarse electromagnetic coupling nonlinear vibration damping and power generation particles 100 further include an energy converter 150 and an energy storage 160 electrically connected to the energy converter 150, wherein the energy converter 150 and the energy storage 160 are both located in the stress conduction box 110;
the energy converter 150 is electrically connected with the magnetic nonlinear vibration energy collecting module 140 and the piezoelectric energy harvesting module 120, that is, the first piezoelectric vibrator 124, the second piezoelectric vibrator 125 and the third piezoelectric vibrator 144 are electrically connected with the energy converter 150; the energy converter 150 is configured to receive the ac power converted by the magnetic nonlinear vibration energy collection module 140 and the piezoelectric energy harvesting module 120, convert the ac power into dc power, and transmit the dc power to the energy storage 160; the energy storage 160 receives and stores the dc power output by the energy converter 150.
It should be noted that, in this embodiment, the electric energy generated by the magnetic nonlinear vibration energy collection module 140 and the piezoelectric energy capture module 120 first converts an alternating current voltage into a direct current voltage through a rectifier bridge in the energy converter 150, filters noise through a filter capacitor, and finally effectively stores the stable direct current electric energy in the energy storage 160, where the energy storage 160 may be a super capacitor, a nickel-hydrogen battery, or a lithium ion battery.
Referring to fig. 1 to 7, in summary, the coarse magnetoelectric coupling nonlinear vibration damping and power generation particles 200 combine vibration damping and power generation of a vehicle-track coupling dynamic model, convert part of vibration energy generated by train operation into electric energy through the coarse magnetoelectric coupling nonlinear vibration damping and power generation particles 100, and store the electric energy through the energy storage 160 to provide power for equipment such as monitoring of a track structure, so as to realize passive monitoring of track equipment in remote areas.
In conclusion, the invention provides a magnetoelectric coupling nonlinear vibration reduction and power generation coarse particle device for a transition section of a railway road and bridge. The magnetoelectric coupling nonlinear vibration reduction and power generation coarse particle device comprises a stress conduction box, a piezoelectric energy harvesting module, a plurality of damping vibration reduction modules and a plurality of magnetic nonlinear vibration energy acquisition modules. The damping vibration attenuation module is used for absorbing the vibration energy of the stress conduction box and transmitting the vibration energy to the magnetic nonlinear vibration energy acquisition module; the magnetic force nonlinear vibration energy acquisition module is used for converting the received vibration energy into electric energy and transmitting the vibration energy into the piezoelectric energy harvesting module. Therefore, the magnetoelectric coupling nonlinear vibration-damping electricity-generating coarse particle device can absorb the vertical, transverse and axial three-dimensional vibration transmitted to the railway roadbed by the steel rail by combining the vibration damping and electricity generation of the vehicle-track-roadbed coupling dynamic model, and converts part of vibration energy generated by the train operation into electric energy.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.
Claims (10)
1. The utility model provides a railway road bridge changeover portion magnetoelectric coupling nonlinearity damping electricity generation coarse grain device which characterized in that:
the magnetoelectric coupling nonlinear vibration reduction and power generation coarse particle device comprises a stress transmission box, a piezoelectric energy harvesting module, a plurality of damping vibration reduction modules and a plurality of magnetic nonlinear vibration energy acquisition modules;
the stress transmission box comprises two first side plates and a plurality of second side plates; the two first side plates are oppositely arranged and provided with intervals; the plurality of second side plates are arranged around the two first side plates and connected with the first side plates and the second side plates;
the piezoelectric energy harvesting module, the damping vibration attenuation modules and the magnetic nonlinear vibration energy collecting modules are all positioned in the stress transmission box; the piezoelectric energy harvesting module is connected with the two first side plates; the plurality of damping vibration attenuation modules are connected with the plurality of second side plates in a one-to-one corresponding mode; the plurality of magnetic nonlinear vibration energy acquisition modules are correspondingly connected with the plurality of damping vibration attenuation modules one by one and surround the piezoelectric energy harvesting module;
the damping vibration attenuation module is used for absorbing the vibration energy of the stress conduction box and transmitting the vibration energy to the magnetic nonlinear vibration energy acquisition module; the magnetic force nonlinear vibration energy acquisition module is used for converting the received vibration energy into electric energy and transmitting the vibration energy to the piezoelectric energy harvesting module; the piezoelectric energy harvesting module is used for receiving the vibration energy and converting the received vibration energy into electric energy.
2. The magnetoelectric coupling nonlinear vibration damping power generation coarse particle device according to claim 1, characterized in that:
the piezoelectric energy harvesting module comprises two first fixed blocks and a plurality of first piezoelectric vibrator units;
the two first fixed blocks are respectively connected with the two first side plates;
the plurality of first piezoelectric vibrator units correspond to the plurality of magnetic nonlinear vibration energy acquisition modules one by one, and each first piezoelectric vibrator unit is used for absorbing vibration energy output by the corresponding magnetic nonlinear vibration energy acquisition module and converting the received vibration energy into electric energy; a plurality of the both ends of first piezoelectric vibrator unit equally divide respectively with two first fixed block is connected, and is a plurality of first piezoelectric vibrator unit centers on two first fixed block sets up at interval in proper order.
3. The magnetoelectric coupling nonlinear vibration damping power generation coarse particle device according to claim 2, characterized in that:
the first piezoelectric vibrator unit comprises a first magnetic piece, a first piezoelectric vibrator and a second piezoelectric vibrator;
the first magnetic part is used for inducing the vibration of the corresponding magnetic nonlinear vibration energy acquisition module;
the first piezoelectric vibrator and the second piezoelectric vibrator are arranged at an included angle, one end of the first piezoelectric vibrator and one end of the second piezoelectric vibrator are connected with the first magnetic part, and the other end of the first piezoelectric vibrator and the other end of the second piezoelectric vibrator are connected with the first fixing block and the second fixing block respectively.
4. The magnetoelectric coupling nonlinear vibration damping power generation coarse particle device according to claim 1, characterized in that:
the damping vibration attenuation module comprises a second fixed block, an elastic piece and a rubber telescopic damping rod;
the second fixed block with correspond the second curb plate is connected, the one end of the flexible damping rod of rubber with the second fixed block is connected, the other end orientation of the flexible damping rod of rubber the center of stress conduction case and with the nonlinear vibration energy collection module of magnetic force is connected, the elastic component cover is established the flexible damping rod of rubber.
5. The magnetoelectric coupling nonlinear vibration damping power generation coarse particle device according to claim 4, characterized in that:
the magnetic nonlinear vibration energy acquisition module comprises a connecting block, a second piezoelectric vibrator unit and a second magnetic part;
the connecting blocks are connected with one ends of the corresponding rubber telescopic damping rods facing the center of the stress transmission box; the second piezoelectric vibrator unit is connected with the connecting block and the second magnetic piece; the second piezoelectric vibrator unit is used for absorbing the vibration energy of the connecting block and converting the received vibration energy into electric energy.
6. The magnetoelectric coupling nonlinear vibration damping power generation coarse particle device according to claim 5, characterized in that:
the second piezoelectric vibrator unit comprises a third piezoelectric vibrator, a first connecting sheet and a second connecting sheet;
the two opposite ends of the first connecting sheet are respectively connected with the two opposite ends of the second connecting sheet, and the part between the two ends of the first connecting sheet and the part between the two ends of the second connecting sheet are spaced to form a mounting area; the surface of the first connecting piece, which is deviated from the second connecting piece, is connected with the connecting block, and the surface of the second connecting piece, which is deviated from the first connecting piece, is connected with the second magnetic part;
the two opposite ends of the third piezoelectric vibrator are respectively connected with the two ends of the first connecting sheet and the two ends of the second connecting sheet, and the part of the third piezoelectric vibrator located in the mounting area is spaced from the first connecting sheet and the second connecting sheet.
7. The magnetoelectric coupling nonlinear vibration damping power generation coarse particle device according to claim 6, characterized in that:
the magnetic nonlinear vibration energy acquisition module further comprises a mass block, and the mass block is connected with the connecting block.
8. The magnetoelectric coupling nonlinear vibration damping power generation coarse particle device according to claim 6, characterized in that:
the piezoelectric energy harvesting module comprises a plurality of first magnetic parts, the first magnetic parts correspond to the magnetic nonlinear vibration energy acquisition modules one by one, and each first magnetic part is opposite to the magnetism of the second magnetic part of the corresponding magnetic nonlinear vibration energy acquisition module.
9. The magnetoelectric coupling nonlinear vibration damping power generation coarse particle device according to any one of claims 1 to 8, characterized in that:
the magnetoelectric coupling nonlinear vibration reduction and power generation coarse particle device further comprises an energy converter and an energy storage device electrically connected with the energy converter, and the energy converter and the energy storage device are both positioned in the stress transmission box;
the energy converter is electrically connected with the magnetic nonlinear vibration energy acquisition module and the piezoelectric energy harvesting module; the energy converter is used for receiving the alternating current electric energy converted by the magnetic nonlinear vibration energy collecting module and the piezoelectric energy harvesting module, converting the alternating current electric energy into direct current electric energy and transmitting the direct current electric energy to the energy storage; the energy storage receives and stores the direct current electric energy output by the energy converter.
10. The utility model provides a railway road bridge changeover portion magnetoelectric coupling nonlinearity damping electricity generation coarse grain device which characterized in that:
the magnetoelectric coupling nonlinear vibration-damping power generation coarse particle device comprises a vibration-damping power generation plate steel rail and the magnetoelectric coupling nonlinear vibration-damping power generation coarse particle device according to any one of claims 1 to 9;
the vibration reduction and power generation coarse particle device is characterized in that a mounting groove is formed in the ground-near end of the vibration reduction and power generation coarse particle device, and the stress transmission box is matched with the mounting groove and used for absorbing vibration of the vibration reduction and power generation coarse particle device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110334519.3A CN113026437B (en) | 2021-03-29 | 2021-03-29 | Magneto-electric coupling nonlinear vibration reduction and power generation coarse particle device for transition section of railway road and bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110334519.3A CN113026437B (en) | 2021-03-29 | 2021-03-29 | Magneto-electric coupling nonlinear vibration reduction and power generation coarse particle device for transition section of railway road and bridge |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113026437A true CN113026437A (en) | 2021-06-25 |
| CN113026437B CN113026437B (en) | 2022-09-20 |
Family
ID=76452656
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110334519.3A Active CN113026437B (en) | 2021-03-29 | 2021-03-29 | Magneto-electric coupling nonlinear vibration reduction and power generation coarse particle device for transition section of railway road and bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113026437B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114427586A (en) * | 2022-01-20 | 2022-05-03 | 中南大学 | Railway roadbed dynamic energy harvesting vibration damper based on carbon neutralization concept |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102013837A (en) * | 2010-12-23 | 2011-04-13 | 南京航空航天大学 | Dandelion-like multi-directional broadband piezoelectric vibration energy collection device |
| CN104158436A (en) * | 2014-07-02 | 2014-11-19 | 苏州市职业大学 | Road surface energy collection system |
| KR20170026078A (en) * | 2015-08-26 | 2017-03-08 | 한양대학교 산학협력단 | Piezoelectric harvesting module for road |
| 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 |
| CN106639471A (en) * | 2016-12-22 | 2017-05-10 | 浙江建科减震科技有限公司 | Piezoelectric and electromagnetic compound energy harvesting type semi-active turned mass particle damper |
| CN111877057A (en) * | 2020-07-08 | 2020-11-03 | 广州地铁设计研究院股份有限公司 | Sleeper with vibration damping and energy collecting characteristics |
-
2021
- 2021-03-29 CN CN202110334519.3A patent/CN113026437B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102013837A (en) * | 2010-12-23 | 2011-04-13 | 南京航空航天大学 | Dandelion-like multi-directional broadband piezoelectric vibration energy collection device |
| CN104158436A (en) * | 2014-07-02 | 2014-11-19 | 苏州市职业大学 | Road surface energy collection system |
| KR20170026078A (en) * | 2015-08-26 | 2017-03-08 | 한양대학교 산학협력단 | Piezoelectric harvesting module for road |
| 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 |
| CN106639471A (en) * | 2016-12-22 | 2017-05-10 | 浙江建科减震科技有限公司 | Piezoelectric and electromagnetic compound energy harvesting type semi-active turned mass particle damper |
| CN111877057A (en) * | 2020-07-08 | 2020-11-03 | 广州地铁设计研究院股份有限公司 | Sleeper with vibration damping and energy collecting characteristics |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114427586A (en) * | 2022-01-20 | 2022-05-03 | 中南大学 | Railway roadbed dynamic energy harvesting vibration damper based on carbon neutralization concept |
| CN114427586B (en) * | 2022-01-20 | 2022-10-14 | 中南大学 | Railway roadbed dynamic energy harvesting vibration damper based on carbon neutralization concept |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113026437B (en) | 2022-09-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Yang et al. | Nonlinear vibration energy harvesting and vibration suppression technologies: Designs, analysis, and applications | |
| CN102064745B (en) | Bistable piezoelectric cantilever beam vibrator device | |
| CN203219211U (en) | Efficient wideband vibrating energy collector with elastic amplifying mechanism | |
| CN211183831U (en) | Piezoelectric type multi-direction broadband vibration energy collecting device | |
| CN113026437B (en) | Magneto-electric coupling nonlinear vibration reduction and power generation coarse particle device for transition section of railway road and bridge | |
| CN108832842B (en) | Frequency-raising type piezoelectric generator for collecting horizontal direction ultralow frequency vibration energy | |
| CN107093963B (en) | A kind of multi-direction superlow frequency vibrating energy harvester | |
| Cao et al. | An electromagnetic energy harvester for applications in a high-speed rail pavement system | |
| CN103762888B (en) | Lever ultra-magnetic telescopic energy gathering apparatus | |
| CN113394941B (en) | Electromagnetism-piezoelectricity hybrid double-effect quasi-zero-stiffness vibration energy harvesting device | |
| CN106026772A (en) | Shearing type permanent magnet piezoelectric composite structure based wire energy-taking apparatus and preparation method | |
| CN103276664A (en) | Piezoelectric energy-harvesting tuned mass damper | |
| Li et al. | A high-efficiency energy regeneration shock absorber based on twin slider-crank mechanisms for self-powered sensors in railway cars | |
| CN203278697U (en) | Wide-frequency-band multi-direction vibration energy harvester | |
| CN112509438B (en) | Mass-spring-damping multiparameter tuning experiment method | |
| CN107222129A (en) | A kind of vibration-damping generator based on converse magnetostriction principle | |
| CN116317690A (en) | Piezoelectric-electromagnetic composite rail vibration energy harvester based on steel rail vibration absorber | |
| CN102277827B (en) | Piezoelectric energy-capturing type tuning quality shock absorber | |
| CN220440576U (en) | Piezoelectric-electromagnetic combined energy acquisition device | |
| CN117748874A (en) | Broadband low-frequency bistable friction-piezoelectric-electromagnetic composite energy harvester and energy harvesting method | |
| CN102983779B (en) | Piezoelectric vibration energy capture device of magnetic coupling | |
| CN204376772U (en) | A kind of piezoelectric vibration power generation machine | |
| CN104485847A (en) | Piezoelectric vibration electric generator | |
| CN112030616B (en) | Vibration reduction power generation sleeper based on resonance principle | |
| CN111664209A (en) | Vibration absorber, floating plate rail and vibration absorbing method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |