CN115233540A - Active and passive hybrid control system for inhibiting multi-mode coupling vibration of bridge - Google Patents
Active and passive hybrid control system for inhibiting multi-mode coupling vibration of bridge Download PDFInfo
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- CN115233540A CN115233540A CN202210973833.0A CN202210973833A CN115233540A CN 115233540 A CN115233540 A CN 115233540A CN 202210973833 A CN202210973833 A CN 202210973833A CN 115233540 A CN115233540 A CN 115233540A
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- 238000000034 method Methods 0.000 description 4
- 238000013016 damping Methods 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000001808 coupling effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/98—Protection against other undesired influences or dangers against vibrations or shocks; against mechanical destruction, e.g. by air-raids
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- Vibration Prevention Devices (AREA)
Abstract
The invention discloses an active and passive hybrid control system for inhibiting multi-mode coupling vibration of a bridge. The second sliding part moves towards the direction opposite to the running direction of the object to be controlled under the action of the object to be controlled, so that the second sliding part generates force for offsetting the transverse vibration of the object to be controlled and transmits the force to the object to be controlled, and the transverse vibration generated by the object to be controlled is offset. The rotating piece can rotate towards the opposite direction of the torsional direction of the object to be controlled under the action of the object to be controlled, so that the rotating piece generates a moment for offsetting the torsional vibration of the object to be controlled, and the moment is transmitted to the object to be controlled, and the torsional vibration generated by the object to be controlled is offset.
Description
Technical Field
The invention relates to the technical field of bridge engineering, in particular to a master-slave hybrid control system for inhibiting multi-mode coupling vibration of a bridge.
Background
In the prior art, when a train runs on a bridge, once the train encounters the condition that a bridge deck track is not smooth, the train vibrates, the vibrating train can react on the track, and the track deforms after long-term operation. The larger the deformation of the track is, the larger the vibration of the train to the track is, so that the vibration of the train to the bridge is indirectly aggravated, and the bridge is collapsed in the serious condition.
In order to solve the above problems, the vibration control of the bridge is generally controlled by a passive control method such as a damper, but the damper can only output a linear control force, and is equivalent to the damper which can only control the horizontal vibration and the vertical vibration generated by the bridge, and cannot control the torsional vibration generated by the bridge. Dampers also have the following drawbacks: 1. the damper has a limited tensile strength and is easily broken when a train and a bridge resonate. 2. When the damper controls the vibration of a bridge, damping liquid in the damper is easy to emulsify at high temperature under the high-frequency reciprocating action, so that the control performance of the damper is unstable, and the damper cannot be used for a vibration mode with a rotation characteristic due to the coupling effect between the displacement and the swing angle of the tuned mass damper, so that the damper is often failed when controlling the torsional vibration of the bridge. 3. When the damper controls the torsional vibration of a bridge, the characteristic of the linear control force of the damper is easy to generate a chaos phenomenon, and different control effects are achieved under different excitation frequencies.
Disclosure of Invention
The invention mainly aims to provide an active and passive hybrid control system for inhibiting multi-modal coupling vibration of a bridge, and aims to solve the technical problem that the stability of the bridge is poor due to the fact that a damper in the prior art cannot effectively solve the complex vibration behavior of the bridge.
In order to solve the technical problems, the technical scheme provided by the invention is as follows:
the active-passive hybrid control system comprises a vertical force output module, a first guide part, a first elastic part and a first sliding part, wherein the first guide part is used for being arranged on an object to be controlled, the first sliding part can move back and forth along the first guide part in the vertical direction, one end of the first elastic part is connected with the object to be controlled, the other end of the first elastic part is connected with the first sliding part, and the first sliding part moves towards the direction opposite to the running direction of the object to be controlled under the action of the object to be controlled; the transverse force output module comprises a second guide piece, a second elastic piece and a second sliding piece, the second guide piece is arranged on the first sliding piece, the second sliding piece can move back and forth along the second guide piece in the horizontal direction, one end of the second elastic piece is connected with the first sliding piece, the other end of the second elastic piece is connected with the second sliding piece, and the second sliding piece moves towards the direction opposite to the running direction of the object to be controlled under the action of the object to be controlled; and a torsional moment output module, including pivot, third elastic component, rotating member, motor, carousel, sensor and controller, the pivot rotationally sets up on the second slider, the third elastic component cover is established in the pivot, the rotating member sets up in the pivot, the one end of third elastic component with the second slider is connected, the other end with the rotating member is connected, the motor sets up the rotating member is back to one side of pivot, the carousel sets up on the motor, the controller respectively with the sensor with the motor is connected, the rotating member is in under the effect of object of treating the accuse the orientation of object of treating the accuse opposite direction rotation of object torsion, the sensor is used for detecting the torsion angle of object of treating the accuse, and will the torsion angle send for the controller, the controller is used for handling the torsion angle of receiving to corresponding control command is given according to the processing result output to the motor, with control motor drive the carousel is rotatory, thereby makes carousel accelerate the rotating member is rotatory.
Preferably, the first elastic member is sleeved on the first guide member.
Preferably, the second elastic member is fitted over the second guide member.
Preferably, the vertical force output module further comprises a base, the base is connected with the first sliding member, the second guide member is disposed on the base, and one end of the second elastic member is connected with the base.
Preferably, the base includes the base and sets up fixing base on the base, the base with first slider is connected, the second guide sets up on the fixing base, the one end of second elastic component with the fixing base is connected.
Preferably, the rotating member includes a rotating plate and a flange, the rotating plate is disposed on the rotating shaft, the other end of the third elastic member is connected to the rotating plate, the flange is disposed on a side of the rotating plate opposite to the rotating shaft, the flange is in a ring shape, the motor is disposed on a side of the rotating plate opposite to the rotating shaft and located in a cavity surrounded by the flange, the turntable is disposed on the motor, and the turntable is in transmission connection with the flange; the motor is used for driving the turntable to rotate so that the turntable drives the flange to rotate, and therefore the flange drives the rotating plate to rotate.
Preferably, the torsional moment output module further comprises a transmission assembly, and the turntable and the flange are in transmission connection through the transmission assembly; the turntable drives the transmission assembly to rotate, so that the transmission assembly drives the flange to rotate.
Preferably, the transmission assembly comprises a rolling element, the rolling element is arranged between the turntable and the flange, a first raceway is arranged on the outer wall of the turntable, a second raceway corresponding to the first raceway is arranged on the inner wall of the flange, and the rolling element can be arranged between the first raceway and the flange
The second roller paths roll in a cavity formed by the second roller paths together; the turntable drives the rolling body to rotate, so that the rolling body drives the flange to rotate.
Preferably, the transmission assembly further comprises a retainer, the number of the rolling bodies is multiple, the rolling bodies are arranged on the retainer at intervals and can rotate along the retainer, and the turntable drives the rolling bodies to rotate, so that the rolling bodies drive the retainer to rotate.
Preferably, the torque output device further includes a vibration isolation seat, the vibration isolation seat is disposed in the object to be controlled, the first guide member is disposed on the vibration isolation seat, and one end of the first elastic member is connected to the vibration isolation seat.
Compared with the prior art, the invention has the following beneficial effects:
the first sliding part can move back and forth along the first guide part in the vertical direction, and the first sliding part moves towards the opposite direction of the running direction of the object to be controlled under the action of the object to be controlled, so that the first sliding part can generate force for offsetting the vertical vibration of the object to be controlled, and the force is transmitted to the object to be controlled through the first elastic part, so that the vertical vibration generated by the object to be controlled is offset, and the stability of the object to be controlled is improved. The second sliding part can move back and forth along the second guide part in the horizontal direction, and the second sliding part moves towards the opposite direction of the running direction of the object to be controlled under the action of the object to be controlled, so that the second sliding part can generate force for offsetting the transverse vibration of the object to be controlled, and the force is transmitted to the object to be controlled through the second elastic part, so that the transverse vibration generated by the object to be controlled is offset, and the stability of the object to be controlled is improved. The rotating part of this application can treat through the pivot relatively that the accuse object is rotatory, and the rotating part can be towards treating that the accuse object twists reverse direction rotation under the effect of treating the accuse object to make the rotating part can produce and offset the moment of treating accuse object torsional vibration, and transmit this moment to treating on the accuse object through third elastic component, in order to offset the torsional vibration that the object that treats the accuse produced, thereby improve the stationarity of treating the accuse object. This application detects the torsion angle of treating accuse object through the sensor to give the controller with torsion angle transmission, the controller is handled the torsion angle of receipt, and give the motor according to the corresponding control command of processing result output, it is rotatory with control motor drive carousel, so that the carousel is rotatory with higher speed rotating member, make the rotating member can produce the moment of offsetting treating accuse object torsional vibration fast, thereby improve the precision and the real-time of moment output device production moment. The active and passive composite control design is adopted, and the motor drives the rotary table with smaller radius and mass to rotate, so that the rotary table drives the rotary piece with larger radius and mass to rotate, and the external input energy is further saved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a perspective view of a torque output device and an object to be controlled according to an embodiment of the present invention.
Fig. 2 is a perspective view of a torque output device according to an embodiment of the present invention.
Fig. 3 is a top view of a torque output device according to an embodiment of the present invention.
FIG. 4 is a schematic diagram of a torsional torque output module according to one embodiment of the invention.
100. The active and passive hybrid control system is used for inhibiting multi-mode coupling vibration of the bridge; 1. a vertical force output module; 11. a first guide member; 12. a first elastic member; 13. a first slider; 14. a base; 141. a base; 142. a fixed seat; 2. a lateral force output module; 21. a second guide member; 22. a second elastic member; 23. a second slider; 3. a torsional moment output module; 31. a rotating shaft; 32. a third elastic member; 33. a rotating member; 331. a rotating plate; 332. a flange; 34. a motor; 35. a turntable; 36. a sensor; 37. a controller; 38. a bearing; 39. a first connecting member; 40. a transmission assembly; 401. a rolling body; 41. a second connecting member; 42. a first fixing member; 43. a second fixing member; 4. an object to be controlled; 5. a vibration isolation mount; 51. a support member; 52. a first buffer member; 53. a second buffer member; 54. and a third fixing member.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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 invention.
It should be noted that all directional indicators (such as up, down, left, right, front, back \8230;) in the embodiments of the present invention are only used to explain the relative positional relationship between the components, the motion situation, etc. in a specific posture (as shown in the attached drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In addition, "and/or" in the whole text includes three schemes, taking a and/or B as an example, including a technical scheme, and a technical scheme that a and B meet simultaneously; in addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
As shown in fig. 1-4, the present embodiment provides an active-passive hybrid control system 100 for suppressing multi-modal coupled vibration of a bridge, including a vertical force output module 1, a lateral force output module 2, and a torsional moment output module 3, where the vertical force output module 1 includes a first guide 11, a first elastic member 12, and a first sliding member 13, the first guide 11 is configured to be disposed on an object 4 to be controlled, the first sliding member 13 is capable of moving back and forth along the first guide 11 in the vertical direction, one end of the first elastic member 12 is connected to the object 4 to be controlled, and the other end is connected to the first sliding member 13, and the first sliding member 13 moves toward a direction opposite to a moving direction of the object 4 to be controlled under the action of the object 4 to be controlled; the transverse force output module 2 comprises a second guide part 21, a second elastic part 22 and a second sliding part 23, the second guide part 21 is arranged on the first sliding part 13, the second sliding part 23 can move back and forth along the second guide part 21 in the horizontal direction, one end of the second elastic part 22 is connected with the first sliding part 13, the other end of the second elastic part 22 is connected with the second sliding part 23, and the second sliding part 23 moves towards the direction opposite to the running direction of the object 4 to be controlled under the action of the object 4 to be controlled; the torsion moment output module 3 comprises a rotating shaft 31, a third elastic member 32, a rotating member 33, a motor 34, a rotating disc 35, a sensor 36 and a controller 37, wherein the rotating shaft 31 is rotatably arranged on the second sliding member 23, the third elastic member 32 is sleeved on the rotating shaft 31, the rotating member 33 is arranged on the rotating shaft 31, one end of the third elastic member 32 is connected with the second sliding member 23, the other end of the third elastic member is connected with the rotating member 33, the motor 34 is arranged on the side of the rotating member 33 opposite to the rotating shaft 31, the rotating disc 35 is arranged on the motor 34, the controller 37 is respectively connected with the sensor 36 and the motor 34, the rotating member 33 rotates towards the direction opposite to the torsion direction of the object 4 to be controlled under the action of the object 4 to be controlled, the sensor 36 is used for detecting the torsion angle of the object 4 to be controlled and sending the torsion angle to the controller 37, the controller 37 is used for processing the received torsion angle and outputting a corresponding control command to the motor 34 according to control the processing result so as to control the motor 34 to drive the rotating disc 35 to accelerate the rotating member 33 to rotate.
In this embodiment, the object 4 to be controlled is a bridge.
First elastic component 12 cover is established on first guide 11, so set up, can improve vertical force output module 1's space utilization to reduce vertical force output module 1's volume.
The first sliding part 13 is provided with a first through hole, and the first sliding part 13 is sleeved on the first guide part 11 through the first through hole, so that the first sliding part 13 can move back and forth along the first guide part 11 in the vertical direction.
The number of the first guide parts 11, the number of the first elastic parts 12 and the number of the first sliding parts 13 are all multiple, the multiple first guide parts 11 are respectively arranged on the object 4 to be controlled, the multiple first elastic parts 12 are respectively sleeved on the corresponding first guide parts 11, the multiple first sliding parts 13 are sequentially sleeved on the first guide parts 11 correspondingly, the multiple first sliding parts 13 can respectively reciprocate along the corresponding first guide parts 11 in the vertical direction, one end of each of the multiple first elastic parts 12 is respectively connected with the corresponding object 4 to be controlled, and the other end of each of the multiple first elastic parts 12 is respectively connected with the corresponding first sliding parts 13.
In this embodiment, the number of the first guide members 11 is two, the number of the first elastic members 12 is four, the number of the first sliding members 13 is two, the two first guide members 11 are respectively disposed in the object 4 to be controlled, two ends of the two first guide members 11 are respectively connected to the bottom and the top of the object 4 to be controlled, wherein the two first elastic members 12 are respectively sleeved on one of the first guide members 11, one of the first sliding members 13 is sleeved on one of the first guide members 11 through the first through hole and is located between the two first elastic members 12, the other two first elastic members 12 are respectively sleeved on the other one of the first guide members 11, and the other one of the first sliding members 13 is sleeved on the other one of the first guide members 11 through the first through hole and is located between the other two first elastic members 12.
In the present embodiment, the first guide 11 is a guide post.
In the present embodiment, the first elastic member 12 is a spring.
The second elastic member 22 is sleeved on the second guide member 21, so that the space utilization rate of the transverse force output module 2 can be improved, and the size of the transverse force output module 2 is reduced.
The second sliding part 23 is provided with a second through hole, and the second sliding part 23 is sleeved on the second guiding part 21 through the second through hole, so that the second sliding part 23 can reciprocate along the second guiding part 21 in the vertical direction.
The number of the second guiding elements 21 and the number of the second elastic elements 22 are both multiple, the multiple second guiding elements 21 are respectively arranged on the first sliding elements 13, the multiple second elastic elements 22 are respectively sleeved on the corresponding second guiding elements 21, one ends of the multiple second elastic elements 22 are respectively connected with the corresponding first sliding elements 13, and the other ends of the multiple second elastic elements 22 are respectively connected with the second sliding elements 23.
In this embodiment, the number of the second guiding members 21 is two, the number of the second elastic members 22 is four, the number of the second sliding members 23 is one, the number of the second through holes is two, the two second guiding members 21 are respectively disposed on the first sliding member 13, wherein the two second elastic members 22 are respectively sleeved on one of the second guiding members 21, the other two second elastic members 22 are respectively sleeved on the other one of the second guiding members 21, the second sliding member 23 is sleeved on the corresponding second guiding member 21 through the two second through holes, and the second sliding member 23 is not only located between the two second elastic members 22, but also located between the other two second elastic members 22.
In the present embodiment, the second guide 21 is a guide post.
In the present embodiment, the second elastic member 22 is a spring.
The vertical force output module 1 further comprises a base 14, the base 14 is connected with the first sliding member 13, the second guiding member 21 is arranged on the base 14, and one end of the second elastic member 22 is connected with the base 14.
The base 14 includes a base 141 and a fixing seat 142 disposed on the base 141, the base 141 is connected to the first sliding member 13, the second guiding member 21 is disposed on the fixing seat 142, and one end of the second elastic member 22 is connected to the fixing seat 142.
In the present embodiment, the third elastic member 32 is a torsion spring.
In the present embodiment, the motor 34 is a torque motor 34, and the torque motor 34 can generate a large torque.
In the present embodiment, the sensor 36 is provided on the object 4 to be controlled, and the controller 37 is provided on the second slider 23.
The torsional moment output module 3 further includes a bearing 38, the bearing 38 is disposed on the second slider 23, and the rotating shaft 31 is connected to the bearing 38, so that the rotating shaft 31 is rotatably disposed on the second slider 23.
The torsional moment output module 3 further includes a first connecting member 39, and the rotating shaft 31 and the rotating member 33 are connected by the first connecting member 39.
The rotating member 33 comprises a rotating plate 331 and a flange 332, the rotating plate 331 is disposed on the rotating shaft 31, the other end of the third elastic member 32 is connected to the rotating plate 331, the flange 332 is disposed on a side of the rotating plate 331 facing away from the rotating shaft 31, the flange 332 is in a ring shape, the motor 34 is disposed on a side of the rotating plate 331 facing away from the rotating shaft 31 and located in a cavity surrounded by the flange 332, the turntable 35 is disposed on the motor 34, and the turntable 35 is in transmission connection with the flange 332; the motor 34 is used to drive the turntable 35 to rotate, so that the turntable 35 drives the flange 332 to rotate, and the flange 332 drives the rotating plate 331 to rotate. So set up for motor 34 drives the carousel 35 gyration that radius and quality are less, so that carousel 35 drives the great rotating member 33 gyration of radius and quality, forms active passive compound control, further saves external input energy. In this embodiment, the flange 332 is made of a rubber material.
The torsional moment output module 3 further comprises a transmission assembly 40, and the rotary disc 35 and the flange 332 are in transmission connection through the transmission assembly 40; the turntable 35 rotates the transmission assembly 40, so that the transmission assembly 40 rotates the flange 332.
The transmission assembly 40 comprises a rolling body 401, the rolling body 401 is arranged between the turntable 35 and the flange 332, a first raceway is arranged on the outer wall of the turntable 35, a second raceway corresponding to the first raceway is arranged on the inner wall of the flange 332, and the rolling body 401 can roll in a cavity formed by the first raceway and the second raceway together; the turntable 35 rotates the rolling body 401, so that the rolling body 401 rotates the flange 332. By arranging the first raceway and the second raceway to prevent the rolling element 401 from falling out from between the turntable 35 and the flange 332 during rolling, the rolling element 401 can reliably roll in a cavity formed by the first raceway and the second raceway, and thus the rolling reliability of the rolling element 401 is improved.
In this embodiment, the rolling elements 401 are steel balls, which have the advantages of high hardness, low wear rate, low deformation tendency, long service life, and the like.
The transmission assembly 40 further includes a plurality of retainers, the rolling bodies 401 are disposed on the retainers at intervals and can rotate along the retainers, and the turntable 35 drives the rolling bodies 401 to rotate, so that the rolling bodies 401 drive the retainers to rotate. The plurality of rolling bodies 401 can be uniformly spaced apart from each other by the cage so that each rolling body 401 can normally roll between the turntable 35 and the flange 332.
In the embodiment, the retainer is made of the phenolic adhesive cloth tube, and the retainer made of the phenolic adhesive cloth tube has high wear resistance and self-lubricating performance and has the advantages of certain elasticity, plasticity, hardness, impact toughness, fatigue strength, fracture toughness and the like.
The torsion moment output module 3 further includes a second connection member 41, and the rotation plate 331 and the flange 332 are connected by the second connection member 41.
The torsional moment output module 3 further includes a first fixing member 42, the first fixing member 42 is disposed on a side of the rotating plate 331 facing away from the rotating shaft 31, the flange 332 is disposed on a side of the first fixing member 42 facing away from the rotating plate 331, and the motor 34 is disposed on a side of the first fixing member 42 facing away from the rotating plate 331 and located in a cavity surrounded by the flange 332.
The torsional moment output module 3 further includes a second fixing member 43, the second fixing member 43 is disposed on a side of the first fixing member 42 facing away from the rotating plate 331, and the motor 34 is disposed on a side of the second fixing member 43 facing away from the first fixing member 42.
The torque output device 100 includes a vibration isolation base 5, the vibration isolation base 5 is disposed on the object 4 to be controlled, the first guide member 11 is disposed on the vibration isolation base 5, and one end of the first elastic member 12 is connected to the vibration isolation base 5.
The number of the vibration isolation seats 5, the number of the first guide pieces 11 and the number of the first elastic pieces 12 are all a plurality, the vibration isolation seats 5 are respectively arranged in the object 4 to be controlled, the number of the first guide pieces 11 are respectively arranged on the corresponding vibration isolation seats 5, and one ends of the first elastic pieces 12 are respectively connected with the corresponding vibration isolation seats 5.
In this embodiment, the number of the vibration isolation bases 5 is four, the number of the first guide members 11 is two, the number of the first elastic members 12 is four, wherein two vibration isolation bases 5, one vibration isolation base 5 is disposed at the bottom of the object 4 to be controlled, and the other vibration isolation base 5 is disposed at the top of the object 4 to be controlled, wherein one first guide member 11 is disposed on two vibration isolation bases 5, wherein two first elastic members 12 are respectively sleeved on one first guide member 11, one vibration isolation base 5 of the other two vibration isolation bases 5 is disposed at the bottom of the object 4 to be controlled, and the other vibration isolation base 5 is disposed at the top of the object 4 to be controlled, the other first guide member 11 is disposed on the other two vibration isolation bases 5, and the other two first elastic members 12 are respectively sleeved on the other first guide member 11.
The vibration isolation seat 5 comprises a supporting member 51 and a first buffering member 52, the first buffering member 52 is disposed on the object 4 to be controlled, the supporting member 51 is disposed on a side of the first buffering member 52 away from the object 4 to be controlled, the first guiding member 11 is disposed on a side of the supporting member 51 opposite to the first buffering member 52, and one end of the first elastic member 12 is connected to the supporting member 51. The first buffer piece 52 can buffer the supporting piece 51, and can prevent the supporting piece 51 from being damaged by the supporting piece 51 and the object 4 to be controlled in the rigid contact process, so that the service life of the supporting piece 51 is prolonged.
The number of the first cushion members 52 is plural, the plural first cushion members 52 are respectively disposed on the object 4 to be controlled, and the supporting member 51 is disposed on a side of the plural first cushion members 52 away from the object 4 to be controlled. The plurality of first dampers 52 can further provide a damping effect to the support member 51, thereby further improving the service life of the support member 51.
In the present embodiment, the number of the first buffers 52 is four.
In this embodiment, the first cushion 52 is a spring.
The vibration isolation mount 5 further includes a second buffer member 53, the second buffer member 53 is disposed on the object 4 to be controlled, and the supporting member 51 is disposed on a side of the second buffer member 53 away from the object 4 to be controlled. The second cushion member 53 can further cushion the supporting member 51, thereby further improving the service life of the supporting member 51.
In the present embodiment, the damping fluid is provided in the second cushion member 53.
The four first buffers 52 are uniformly distributed around the second buffer 53.
The vibration isolator 5 further includes a third fixing member 54, the third fixing member 54 is disposed on the object 4 to be controlled, and the first buffer member 52 and the second buffer member 53 are respectively disposed on a side of the third fixing member 54 away from the object 4 to be controlled.
The third fixing member 54 is fixed to the object 4 to be controlled by a fastener.
The working process is as follows:
when the object 4 to be controlled vibrates vertically, the first sliding member 13 moves toward the direction opposite to the moving direction of the object 4 to be controlled under the action of the object 4 to be controlled, so that the first sliding member 13 can generate a force for offsetting the vertical vibration of the object 4 to be controlled, and the force is transmitted to the object 4 to be controlled through the first elastic member 12, thereby offsetting the vertical vibration generated by the object 4 to be controlled. When the object 4 to be controlled vibrates transversely, the second sliding part 23 moves towards the direction opposite to the running direction of the object 4 to be controlled under the action of the object 4 to be controlled, so that the second sliding part 23 can generate force for counteracting the transverse vibration of the object 4 to be controlled, and the force is transmitted to the object 4 to be controlled through the second elastic part 22, the first sliding part 13 and the first guide part 11 in sequence, so that the transverse vibration generated by the object 4 to be controlled is counteracted. When the object 4 to be controlled generates torsional vibration, the rotating member 33 rotates in the direction opposite to the torsional direction of the object 4 to be controlled under the action of the object 4 to be controlled, so that the rotating member 33 can generate a moment for counteracting the torsional vibration of the object 4 to be controlled, and the moment is transmitted to the object 4 to be controlled through the third elastic member 32, thereby counteracting the torsional vibration generated by the object 4 to be controlled. Specifically, during the rotation of the rotating member 33, the end of the third elastic member 32 connected to the rotating member 33 generates a rotation moment in the same direction as the torsion direction of the object 4 to be controlled, and since the acting forces of the two ends of the third elastic member 32 are opposite, the end of the third elastic member 32 connected to the object 4 to be controlled generates a restoring moment in the opposite direction to the torsion direction of the object 4 to be controlled (that is, the end of the third elastic member 32 connected to the object 4 to be controlled generates a moment in the opposite direction to the end of the third elastic member 32 connected to the rotating member 33), thereby canceling out the torsion vibration generated by the object 4 to be controlled. And then the torsion angle of the object 4 to be controlled is detected by the sensor 36, and the torsion angle is sent to the controller 37, the controller 37 processes the received torsion angle, and outputs a corresponding control instruction to the motor 34 according to the processing result, so as to control the motor 34 to drive the rotating disc 35 to rotate, so that the rotating disc 35 accelerates the rotation of the rotating member 33, and thus the rotating member 33 can rapidly generate a moment for counteracting the torsion vibration of the object 4 to be controlled. The moment generated by the first rotating member 33 is transmitted to the object 4 to be controlled through the third elastic member 32, the second sliding member 23, the first sliding member 13 and the first guide member 11, so as to quickly cancel out the torsional vibration generated by the object 4 to be controlled, thereby improving the precision and real-time performance of the moment generated by the moment output device 100.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all equivalent structural changes made by using the contents of the present specification and the drawings, or any other related technical fields, which are directly or indirectly applied to the present invention, are included in the scope of the present invention.
Claims (10)
1. An active-passive hybrid control system for suppressing multi-modal coupled vibration of a bridge, comprising:
the vertical force output module comprises a first guide piece, a first elastic piece and a first sliding piece, the first guide piece is used for being arranged on an object to be controlled, the first sliding piece can move back and forth along the first guide piece in the vertical direction, one end of the first elastic piece is connected with the object to be controlled, the other end of the first elastic piece is connected with the first sliding piece, and the first sliding piece moves towards the direction opposite to the running direction of the object to be controlled under the action of the object to be controlled;
the transverse force output module comprises a second guide piece, a second elastic piece and a second sliding piece, the second guide piece is arranged on the first sliding piece, the second sliding piece can move back and forth along the second guide piece in the horizontal direction, one end of the second elastic piece is connected with the first sliding piece, the other end of the second elastic piece is connected with the second sliding piece, and the second sliding piece moves towards the direction opposite to the running direction of the object to be controlled under the action of the object to be controlled; and
torsion moment output module, including pivot, third elastic component, rotating member, motor, carousel, sensor and controller, the pivot rotationally sets up on the second slider, the third elastic component cover is established in the pivot, the rotating member sets up in the pivot, the one end of third elastic component with the second slider is connected, the other end with the rotating member is connected, the motor sets up the rotating member is back to one side of pivot, the carousel sets up on the motor, the controller respectively with the sensor with the motor is connected, the rotating member is in treat control object's effect orientation treat control object reverse direction rotation, the sensor is used for detecting treat control object's torsion angle, and will torsion angle send for the controller, the controller is used for handling the receipt torsion angle to give according to the corresponding control command of handling result output the motor, with control motor drive the carousel is rotatory, thereby makes the carousel accelerates the rotating member is rotatory.
2. The active-passive hybrid control system for suppressing multi-modal coupled vibration of a bridge according to claim 1, wherein the first elastic member is sleeved on the first guide member.
3. The active-passive hybrid control system for suppressing multi-modal coupled vibration of a bridge according to claim 1, wherein the second elastic member is sleeved on the second guide member.
4. The active-passive hybrid control system for restraining multi-modal coupled vibration of a bridge according to claim 1, wherein the vertical force output module further comprises a base, the base is connected with the first sliding member, the second guiding member is disposed on the base, and one end of the second elastic member is connected with the base.
5. The active-passive hybrid control system for restraining multi-mode coupled vibration of a bridge according to claim 4, wherein the base comprises a base and a fixed seat arranged on the base, the base is connected with the first sliding member, the second guiding member is arranged on the fixed seat, and one end of the second elastic member is connected with the fixed seat.
6. The active-passive hybrid control system for restraining multi-modal coupled vibration of a bridge according to claim 1, wherein the rotating member comprises a rotating plate and a flange, the rotating plate is disposed on the rotating shaft, the other end of the third elastic member is connected to the rotating plate, the flange is disposed on a side of the rotating plate facing away from the rotating shaft, the flange is in a ring shape, the motor is disposed on a side of the rotating plate facing away from the rotating shaft and located in a cavity defined by the flange, the turntable is disposed on the motor, and the turntable is in transmission connection with the flange; the motor is used for driving the turntable to rotate so that the turntable drives the flange to rotate, and the flange drives the rotating plate to rotate.
7. The active-passive hybrid control system for inhibiting multi-modal bridge coupled vibration of claim 6, wherein the torsional torque output module further comprises a transmission assembly, and the turntable and the flange are in transmission connection through the transmission assembly; the turntable drives the transmission assembly to rotate, so that the transmission assembly drives the flange to rotate.
8. The active-passive hybrid control system for restraining multi-modal coupled vibration of a bridge according to claim 7, wherein the transmission assembly comprises a rolling element, the rolling element is disposed between the turntable and the flange, a first raceway is disposed on an outer wall of the turntable, a second raceway corresponding to the first raceway is disposed on an inner wall of the flange, and the rolling element can roll in a cavity formed by the first raceway and the second raceway; the turntable drives the rolling body to rotate, so that the rolling body drives the flange to rotate.
9. The active-passive hybrid control system for restraining multi-modal coupled vibration of a bridge according to claim 8, wherein the transmission assembly further comprises a retainer, the number of the rolling elements is plural, the plural rolling elements are disposed on the retainer at intervals and can rotate along the retainer, and the turntable drives the rolling elements to rotate, so that the rolling elements drive the retainer to rotate.
10. The active-passive hybrid control system for restraining multi-modal coupled vibration of a bridge according to claim 1, wherein the torque output device further comprises a vibration isolation seat, the vibration isolation seat is disposed in the object to be controlled, the first guide member is disposed on the vibration isolation seat, and one end of the first elastic member is connected to the vibration isolation seat.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210973833.0A CN115233540B (en) | 2022-08-15 | 2022-08-15 | Active and passive hybrid control system for inhibiting bridge multi-mode coupling vibration |
| PCT/CN2023/083758 WO2024036968A1 (en) | 2022-08-15 | 2023-03-24 | Active/passive hybrid control system for suppressing multi-modal coupled vibration of bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210973833.0A CN115233540B (en) | 2022-08-15 | 2022-08-15 | Active and passive hybrid control system for inhibiting bridge multi-mode coupling vibration |
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| Publication Number | Publication Date |
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| CN115233540A true CN115233540A (en) | 2022-10-25 |
| CN115233540B CN115233540B (en) | 2024-09-24 |
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| CN202210973833.0A Active CN115233540B (en) | 2022-08-15 | 2022-08-15 | Active and passive hybrid control system for inhibiting bridge multi-mode coupling vibration |
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| CN (1) | CN115233540B (en) |
| WO (1) | WO2024036968A1 (en) |
Cited By (2)
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| WO2024036964A1 (en) * | 2022-08-15 | 2024-02-22 | 沈阳工业大学 | Control system for unfavorable swing behavior of object hanging from high altitude |
| WO2024036968A1 (en) * | 2022-08-15 | 2024-02-22 | 沈阳工业大学 | Active/passive hybrid control system for suppressing multi-modal coupled vibration of bridge |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN118426388B (en) * | 2024-07-04 | 2024-09-24 | 山东科技大学 | Control method and system of active and passive hybrid vibration reduction system |
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| WO2024036968A1 (en) * | 2022-08-15 | 2024-02-22 | 沈阳工业大学 | Active/passive hybrid control system for suppressing multi-modal coupled vibration of bridge |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115233540B (en) | 2024-09-24 |
| WO2024036968A1 (en) | 2024-02-22 |
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