CN111005467B - Self-powered self-adaptive magnetorheological damping device - Google Patents
Self-powered self-adaptive magnetorheological damping device Download PDFInfo
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- CN111005467B CN111005467B CN201911395564.9A CN201911395564A CN111005467B CN 111005467 B CN111005467 B CN 111005467B CN 201911395564 A CN201911395564 A CN 201911395564A CN 111005467 B CN111005467 B CN 111005467B
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- 238000013016 damping Methods 0.000 title claims abstract description 37
- 230000005611 electricity Effects 0.000 claims abstract description 3
- 239000003990 capacitor Substances 0.000 claims description 12
- 230000003044 adaptive effect Effects 0.000 claims description 11
- 238000010248 power generation Methods 0.000 claims description 6
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims 1
- 230000009467 reduction Effects 0.000 abstract description 8
- 230000021715 photosynthesis, light harvesting Effects 0.000 abstract description 3
- 230000001276 controlling effect Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
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- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
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Classifications
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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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- 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
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
- E04H9/023—Bearing, supporting or connecting constructions specially adapted for such buildings and comprising rolling elements, e.g. balls, pins
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03G—SPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
- F03G7/00—Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for
- F03G7/08—Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for recovering energy derived from swinging, rolling, pitching or like movements, e.g. from the vibrations of a machine
Abstract
The invention belongs to the field of energy dissipation vibration reduction of engineering structures and wind resistance of structures, and provides a self-energy-supply self-adaptive magnetorheological damping device. The self-energy-supply self-adaptive magnetorheological damping device comprises a magnetorheological damper, an electromagnetic damper, a first connecting piece and an intermediate circuit; the magneto-rheological damper and the electromagnetic damper are connected in parallel through two first connecting pieces; the first connecting piece is used for being connected with the controlled structure so as to move along with the controlled structure, thereby driving the magneto-rheological damper and the electromagnetic damper to move; the electromagnetic damper moves to generate electricity and is provided for the magneto-rheological damper through an intermediate circuit. According to the invention, the magnetorheological damper and the electromagnetic damper are connected in parallel with the controlled structure, the electromagnetic damper is directly driven by vibration of the controlled structure to generate power and is provided for the magnetorheological damper for use, so that self-power supply is realized, and meanwhile, the damping force of the magnetorheological damper is adaptively changed according to the vibration condition, and the technical problem that a traditional magnetorheological damping vibration reduction system is complex and easy to lose efficacy is solved.
Description
Technical Field
The invention belongs to the field of energy dissipation vibration reduction of engineering structures and wind resistance of structures, and particularly relates to a self-energy-supply self-adaptive magnetorheological damping device which can solve the problem of energy supply of a magnetorheological damper.
Background
With the continuous progress of scientific technology, in order to meet the actual demands, the modern building structures are larger and larger in scale, and super high-rise buildings and large-span bridges are more and more. The high-rise building can produce acceleration under wind load effect, can arouse human discomfort, and the large-span bridge can destroy under wind load effect, and under the seismic action, bridge and building damage even the condition of collapsing is also very much. The dynamic characteristics of the structure need to be carefully considered in design, for example, the well-known tacomax bridge in 1940 is twisted under wind load and finally destroyed, so that the vibration of the structure under the wind load and the earthquake is important to control.
Since the last 70 s, civil engineering structure vibration control research and engineering application develop rapidly, and structure vibration control systems can be divided into four types, namely a passive control system, a semi-active control system, an active control system and a hybrid control system. The prior structural vibration control system is mainly controlled passively, and the passive control system does not need to input energy, and comprises two forms of vibration isolation, energy dissipation, vibration reduction and vibration reduction. Active control systems typically require input energy and sensors to obtain motion information of the structure to adjust the control force in real time. The semi-active control system combines the advantages of a passive control system and an active control system, requires little energy, has simpler system structure than the active control system, has higher stability, and has the capability of controllably changing the control force or damping of the active control system. In the semi-active control device, the magneto-rheological damper has the advantages of large damping force, adjustable damping force, quick response time, large working temperature range, small power and the like, and is applied to the fields of automobiles, buildings and the like.
However, magnetorheological dampers also require energy supply, require sensors and controllers to adjust damping force, and for large buildings it may be necessary to apply a plurality of magnetorheological dampers to control the vibration of the structure, which complicates the vibration damping system, is difficult to maintain, and may lose energy supply under seismic action, resulting in system failure. In order to make the magnetorheological damper more conveniently applied to a building structure, it is necessary to design a magnetorheological damper capable of realizing self-sufficiency of energy and realizing self-adaptive control without an inductor.
Disclosure of Invention
Aiming at the defects or improvement demands of the prior art, the invention provides a self-powered self-adaptive magnetorheological damping device, which aims to solve the technical problems that the traditional magnetorheological damping vibration reduction system is complex and easy to lose efficacy by connecting a magnetorheological damper and an electromagnetic damper in parallel with a controlled structure, directly utilizing vibration of the controlled structure to drive the electromagnetic damper to generate power and providing the power for the magnetorheological damper, thereby realizing self-powering and self-adapting changing the damping force of the magnetorheological damper according to the vibration condition.
To achieve the above object, according to one aspect of the present invention, there is provided a self-powered adaptive magnetorheological damping device comprising: the device comprises a magnetorheological damper, an electromagnetic damper, a first connecting piece and an intermediate circuit;
the magneto-rheological damper and the electromagnetic damper are connected in parallel through two first connecting pieces; the first connecting piece is used for being connected with the controlled structure so as to move along with the controlled structure, thereby driving the magneto-rheological damper and the electromagnetic damper to move;
The electromagnetic damper includes: the device comprises a push rod, a ball screw, a ball nut, a flywheel, a direct current motor, a screw seat and a motor seat; the ball screw, the flywheel and the direct current motor are sequentially connected in series from top to bottom; the ball screw is arranged on the screw seat, and the ball screw pair is formed by the ball nut and the ball screw; the direct current motor is arranged on the motor base, and the motor base is connected with the first connecting piece at the lower part; the upper end of the push rod is connected with the first connecting piece at the upper part, and the lower end of the push rod is connected with the ball nut, so that the up-down vibration displacement of the first connecting piece at the upper part is converted into the rotation of the flywheel and the main shaft of the direct current motor through the roller screw pair, and the flywheel is driven to rotate and damp and the direct current motor is driven to generate electricity;
The power generation port of the direct current motor is connected with the power supply port of the magneto-rheological damper through an intermediate circuit, so that the magneto-rheological damper is self-adaptively powered according to different vibration sizes.
Further, the device also comprises a second connecting piece and a third connecting piece; the upper end of the push rod is connected with the first connecting piece at the upper part through the second connecting piece, and the lower end of the motor base is connected with the first connecting piece at the lower part through the third connecting piece.
Further, the intermediate circuit includes: resistors R1-R4, capacitors C1, C2, a first operational amplifier, and a second operational amplifier;
The positive electrode of the input end voltage Vi of the intermediate circuit is connected into the reverse input end of the first operational amplifier through a resistor R1, and a capacitor C1 is connected with the resistor R1 in parallel; the two ends of the resistor R2 and the capacitor C2 are respectively connected with the reverse input end and the output end of the first operational amplifier after being connected in parallel; the output end of the first operational amplifier is connected with the reverse input end of the second operational amplifier through a resistor R3; two ends of the resistor R4 are respectively connected with the reverse input end and the output end of the second operational amplifier; the positive input end of the first operational amplifier 22 and the positive input end of the second operational amplifier are both connected with the negative electrode of the input end voltage Vi of the intermediate circuit;
the input voltage Vi of the intermediate circuit is provided by the electromagnetic damper and the output voltage Vo is connected to the magnetorheological damper.
Further, the intermediate circuit is a phase advance circuit, and R1×c1> R2×c2.
Further, the intermediate circuit is a phase lag circuit, where R1 is equal to C1< R2 is equal to C2.
Further, the intermediate circuit is a phase synchronization circuit, and r1=c1=r2×c2.
In general, the above technical solutions conceived by the present invention, compared with the prior art, can achieve the following beneficial effects:
(1) The self-powered self-adaptive magnetorheological damping device provided by the invention is a device for controlling the vibration of a structure, wherein the electromagnetic damper can provide damping force and generate electric energy at the same time, and the electric energy is used for supplying the magnetorheological damper. Because structural vibration can be transmitted to the direct current motor through the ball screw pair, the power generation rule of the direct current motor is directly influenced by the vibration rule, and the magnetorheological damper can control the magnetic field intensity by controlling the current input into the exciting coil, so that the damping force of the magnetorheological damper is controlled. Therefore, the current generated by the electromagnetic damper is input into the magnetorheological damper through the intermediate circuit, so that the energy supply problem of the magnetorheological damper can be solved, and the effect of adaptively controlling the damping force according to the vibration condition can be formed.
(2) The speed increaser is adopted to increase the rotating speed of the ball screw, so that the energy collection efficiency of the generator is improved, the voltage output is correspondingly more timely, and the self-adaptive control capability is more sensitive.
(3) The self-energy-supply self-adaptive magnetorheological damping device is installed through various connecting pieces, so that the structural form of the connecting pieces can be changed according to different civil structures without changing the structure of the damper, and the application range of the self-energy-supply self-adaptive magnetorheological damping device is widened.
(4) The intermediate circuit may use suitable circuits, such as phase lead circuits, phase lag circuits, phase synchronization circuits, as desired, to extend the richer synchronization, delay, lead adaptation characteristics.
Drawings
FIG. 1 is a schematic structural view of a self-powered adaptive magnetorheological damping device in accordance with a preferred embodiment of the present invention;
FIG. 2 is a schematic structural view of an electromagnetic damper according to a preferred embodiment of the present invention;
fig. 3 is a circuit diagram of an intermediate circuit of a preferred embodiment of the present invention.
The same reference numbers are used throughout the drawings to reference like elements or structures, wherein:
1-second connecting piece, 2-push rod, 3-ball screw, 4-ball nut, 5-bearing support, 6-first coupler, 7-speed increaser, 8-flywheel, 9-second coupler, 10-direct current motor, 11-third connecting piece, 12-magneto-rheological damper, 13-electromagnetic damper, 14-first connecting pieces, 15-intermediate circuits, 16-resistors R1, 17-resistors R2, 18-resistors R3, 19-resistors R4, 20-capacitors C1, 21-capacitors C2, 22-first operational amplifiers, 23-second operational amplifiers, 24-screw bases, 25-speed-increasing bases and 26-motor bases.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention. In addition, the technical features of the embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.
FIG. 1 is a schematic diagram of a self-powered adaptive magnetorheological damping device in accordance with the present invention. The structural vibration drives the magneto-rheological damper 12 and the electromagnetic damper 13 to vibrate, and the damping force is provided by the two dampers together, wherein the electric energy required by the magneto-rheological damper can be regulated by the electromagnetic damper 13 by using the intermediate circuit 15.
As shown in fig. 1 and 2, the magnetorheological damper 12 and the electromagnetic damper 13 are connected in parallel by two first connectors 14. The first connecting piece 14 is used for being connected with a controlled structure so as to move along with the controlled structure, thereby driving the magnetorheological damper 12 and the electromagnetic damper 13 to move.
The electromagnetic damper 13 includes: push rod 2, ball screw 3, ball nut 4, flywheel 8, direct current motor 10, lead screw seat 24 and motor seat 26. The ball screw 3, the flywheel 8 and the direct current motor 10 are sequentially connected in series from top to bottom. The ball screw 3 is mounted on the screw seat 24, and the ball nut 4 and the ball screw 3 form a ball screw pair, so that the function of converting linear motion into rotary motion can be realized. The direct current motor 10 is installed on a motor base 26, and the motor base 26 is connected with the first connecting piece 14 of lower part. The upper end of the push rod 2 is connected with the first connecting piece 14 at the upper part, and the lower end is connected with the ball nut 4, so that the up-down vibration displacement of the first connecting piece 14 at the upper part is converted into the rotation of the flywheel 8 and the main shaft of the direct current motor 10 through the ball screw pair, and the flywheel 8 is driven to rotate for vibration reduction and the direct current motor 10 is driven to generate power.
The power generation port of the direct current motor 10 is connected with the power supply port of the magneto-rheological damper 12 through an intermediate circuit 15, so that the magneto-rheological damper 12 is supplied with power in a self-adaptive mode according to different vibration sizes.
Preferably, the speed increaser further comprises a first coupling 6, a speed increaser 7, a second coupling 9 and a speed increaser base 25. The speed increaser base 25 is fixed between the screw rod base 24 and the motor base 26, and the speed increaser 7 is installed on the speed increaser base 25. The input shaft of the speed increaser 7 is connected with the lower end of the ball screw 3 through a first coupler 6, a flywheel 8 is arranged on the output shaft of the speed increaser 7, and the tail end of the output shaft of the speed increaser 7 is connected with the main shaft of a direct current motor 10 through a second coupler 9. The speed increaser 7 can increase the rotation speed of the ball screw, thereby improving the energy collection efficiency of the generator.
Preferably, the second connector 1 and the third connector 11 are also comprised. The upper end of the push rod 2 is connected with the first connecting piece 14 at the upper part through the second connecting piece 1, and the lower end of the motor base 26 is connected with the first connecting piece 14 at the lower part through the third connecting piece 11. The first connecting piece 14, the second connecting piece 1 and the third connecting piece 11 can be changed according to different civil structures, so that the application range of the invention is enlarged.
Preferably, the magnetorheological damper 12 may be selected to have a suitable type of force based on the actual vibration damping and energy consumption requirements of the structure being controlled.
Preferably, the dc motor 10 may be selected to have a model with appropriate parameters to provide sufficient power to the magnetorheological damper according to the power requirements of the particular magnetorheological damper 12 selected in the actual scenario.
Preferably, the intermediate circuit may use suitable circuits, such as phase lead circuits, phase lag circuits, phase sync circuits, as needed, to extend the richer adaptive characteristics.
In a preferred embodiment, the magnetorheological damper 12 adopts a single rod type, the specific structure of the electromagnetic damper 13 is shown in fig. 3, the first connecting piece 14 is used for forming two dampers into a whole and connecting the whole device with an external civil structure, the interfaces on the connecting plates at the two ends of the connecting piece can be made into corresponding forms according to the interfaces of civil engineering, and the intermediate circuit 15 is shown in fig. 3.
Fig. 2 is a schematic structural view of a preferred electromagnetic damper 13 of the present invention, in which: the second and third connection members 1 and 11 realize connection of the electromagnetic damper 13 with the first connection member 14. The ball nut 4 and the ball screw 3 are ball screw pairs with the adaptive structure size, and can convert linear motion into rotary motion. The first coupling 6 fixedly connects the rotating ball screw with the input shaft of the speed increaser, so as to realize the transmission of motion. The speed increaser 7 can set and adjust the speed reduction ratio according to specific application so as to adapt to different energy requirements. The flywheel 8 can consume the energy of structural vibration, can be used as a damper for energy consumption and shock absorption, and can reduce the vibration transmitted to the direct current motor 10, so that the direct current motor 10 can work normally and stably. The second coupling 9 is used for fixedly connecting the speed increaser 7 and the direct current motor 10. The direct current motor 10 is positioned at the last ring of the whole damper device, kinetic energy is converted into electric energy through an electromagnetic induction principle, the power generation process also has electromagnetic damping effect, and then corresponding current is output to the magneto-rheological damper 12 through the intermediate circuit 15, so that the dissipation of structural energy and the control of vibration are realized. The push rod 2 is used for the connection of the second connection piece 1 and the ball nut 4. The bearing support 5 serves to support and restrain the ball screw 3.
Fig. 3 is a circuit diagram of a preferred intermediate circuit 15 according to the invention, the input voltage Vi of the intermediate circuit 15 being provided by the electromagnetic damper 13 and the output voltage Vo being connected to the magnetorheological damper 12. The intermediate circuit 15 of the present embodiment includes: resistors R1 to R4, capacitors C1, C2, a first operational amplifier 22, and a second operational amplifier 23.
The positive electrode of the input end voltage Vi of the intermediate circuit 15 is connected to the reverse input end of the first operational amplifier 22 through a resistor R1, and a capacitor C1 is connected in parallel with the resistor R1; the two ends of the resistor R2 are respectively connected with the reverse input end and the output end of the first operational amplifier 22 after being connected in parallel with the capacitor C2; the output end of the first operational amplifier 22 is connected with the reverse input end of the second operational amplifier 23 through a resistor R3; the two ends of the resistor R4 are respectively connected with the reverse input end and the output end of the second operational amplifier 23; the positive input of the first operational amplifier 22 and the positive input of the second operational amplifier 23 are both connected to the negative pole of the input voltage Vi of the intermediate circuit 15. Preferably, the first operational amplifier 22 and the second operational amplifier 23 are both operational amplifiers OPA, when R1 is equal to C1 and R2 is equal to C2, a phase advancing circuit can be implemented, whereas a phase retarding circuit can be implemented, and a phase synchronizing circuit can be implemented, so that the phase relation between the input end voltage Vi and the output end voltage Vo can be changed according to the sizes of the resistor and the capacitor, so as to adapt to different application scenarios.
The working principle of the invention is as follows:
The first connecting piece 14 drives the ball nut 4 of the electromagnetic damper 13 to vibrate, the ball screw 3 can do corresponding forward and backward rotation, the rotation speed is changed through the speed increaser 7, and then the flywheel 8 and the direct current motor 10 in the electromagnetic damper 13 are driven to rotate, so that damping force and certain electric energy are generated. The first connection 14 also moves the piston of the magnetorheological damper 12 relative to the cylinder. Magnetorheological fluid is filled in the cylinder body, and the piston moves relative to the cylinder body to shear the magnetorheological fluid and generate damping force.
Because the magnetorheological fluid has certain viscosity and yield strength, and the yield strength is influenced by the magnetic field strength, the magnetic field strength can be controlled by the magnetic field generated by the exciting coil arranged on the piston, and the damping force of the magnetorheological damper can be controlled by controlling the current input into the exciting coil. In the present invention, this current is generated from the electromagnetic damper 13, since the power generation behavior of the electromagnetic damper 13 depends on the up-and-down vibration of the push rod 2, in other words, the vibration amplitude and the vibration frequency of the controlled structure directly affect the output voltage of the electromagnetic damper 13.
Therefore, the current generated by the electromagnetic damper 13 is input to the exciting coil of the magneto-rheological damper 12 through the intermediate circuit 15, so that the energy supply problem of the magneto-rheological damper 12 is solved, and the effect of adaptively controlling the damping force of the magneto-rheological damper 12 can be achieved.
It will be readily appreciated by those skilled in the art that the foregoing description is merely a preferred embodiment of the invention and is not intended to limit the invention, but any modifications, equivalents, improvements or alternatives falling within the spirit and principles of the invention are intended to be included within the scope of the invention.
Claims (6)
1. A self-powered adaptive magnetorheological damping device, comprising: the device comprises a magnetorheological damper (12), an electromagnetic damper (13), a first connecting piece (14) and an intermediate circuit (15);
The magneto-rheological damper (12) and the electromagnetic damper (13) are connected in parallel through two first connecting pieces (14); the first connecting piece (14) is used for being connected with the controlled structure so as to move along with the controlled structure, thereby driving the magneto-rheological damper (12) and the electromagnetic damper (13) to move;
The electromagnetic damper (13) comprises: the device comprises a push rod (2), a ball screw (3), a ball nut (4), a flywheel (8), a direct current motor (10), a screw seat (24) and a motor seat (26); the ball screw (3), the flywheel (8) and the direct current motor (10) are sequentially connected in series from top to bottom; the ball screw (3) is arranged on the screw seat (24), and the ball nut (4) and the ball screw (3) form a ball screw pair; the direct current motor (10) is arranged on a motor base (26), and the motor base (26) is connected with a first connecting piece (14) at the lower part; the upper end of the push rod (2) is connected with a first connecting piece (14) at the upper part, and the lower end of the push rod is connected with a ball nut (4) so as to convert the up-down vibration displacement of the first connecting piece (14) at the upper part into the rotation of the flywheel (8) and the main shaft of the direct current motor (10) through a rolling screw pair, drive the flywheel (8) to rotate and damp and drive the direct current motor (10) to generate electricity;
The power generation port of the direct current motor (10) is connected with the power supply port of the magneto-rheological damper (12) through the intermediate circuit (15), so that the magneto-rheological damper (12) is self-adaptively powered according to different vibration sizes.
2. A self-powered adaptive magnetorheological damping device according to claim 1, further comprising a second (1) and a third (11) connector; the upper end of the push rod (2) is connected with the first connecting piece (14) at the upper part through the second connecting piece (1), and the lower end of the motor base (26) is connected with the first connecting piece (14) at the lower part through the third connecting piece (11).
3. A self-powered adaptive magnetorheological damping device according to any one of claims 1 to 2, wherein the intermediate circuit (15) comprises: resistors R1 to R4, capacitors C1, C2, a first operational amplifier (22), and a second operational amplifier (23);
The positive electrode of the input end voltage Vi of the intermediate circuit (15) is connected into the reverse input end of the first operational amplifier (22) through a resistor R1, and a capacitor C1 is connected with the resistor R1 in parallel; the two ends of the resistor R2 and the capacitor C2 are respectively connected with the reverse input end and the output end of the first operational amplifier (22) after being connected in parallel; the output end of the first operational amplifier (22) is connected with the reverse input end of the second operational amplifier (23) through a resistor R3; two ends of the resistor R4 are respectively connected with an inverted input end and an output end of the second operational amplifier (23); the positive input end of the first operational amplifier (22) and the positive input end of the second operational amplifier (23) are both connected with the negative electrode of the input end voltage Vi of the intermediate circuit (15);
The input voltage Vi of the intermediate circuit (15) is provided by an electromagnetic damper (13) and the output voltage Vo is connected to the magnetorheological damper (12).
4. A self-powered adaptive magnetorheological damping device according to claim 3, characterized in that the intermediate circuit (15) is a phase advance circuit, R1 x C1> R2 x C2.
5. A self-powered adaptive magnetorheological damping device according to claim 3, characterized in that the intermediate circuit (15) is a phase-lag circuit, R1 x C1< R2 x C2.
6. A self-powered adaptive magnetorheological damping device according to claim 3, characterized in that the intermediate circuit (15) is a phase-synchronous circuit, r1=c1=r2×c2.
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| CN201911395564.9A CN111005467B (en) | 2019-12-30 | 2019-12-30 | Self-powered self-adaptive magnetorheological damping device |
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| CN201911395564.9A CN111005467B (en) | 2019-12-30 | 2019-12-30 | Self-powered self-adaptive magnetorheological damping device |
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| CN113062486B (en) * | 2021-03-26 | 2022-08-02 | 华中科技大学 | Tuned viscous inertial mass damper with electromagnetic damping |
| CN114151496A (en) * | 2021-09-17 | 2022-03-08 | 西安工业大学 | Electromagnetic magneto-rheological inertia mass damper |
| CN113833148B (en) * | 2021-10-13 | 2022-12-23 | 国网福建省电力有限公司厦门供电公司 | Antitorque antidetonation tensile building structure that building engineering used |
| CN114233794B (en) * | 2021-12-09 | 2023-08-22 | 青岛理工大学 | Displacement sectional automatic control type magneto-rheological damper |
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| CN101086179A (en) * | 2007-01-24 | 2007-12-12 | 湖南大学 | Self-power-supply magnetorheological intelligent vibration damping device |
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| US6953108B2 (en) * | 2003-04-04 | 2005-10-11 | Millenworks | Magnetorheological damper system |
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| CN101086179A (en) * | 2007-01-24 | 2007-12-12 | 湖南大学 | Self-power-supply magnetorheological intelligent vibration damping device |
| CN202301728U (en) * | 2011-09-22 | 2012-07-04 | 株洲时代新材料科技股份有限公司 | Fundamental damping device and fundamental damping system |
| JP2014173621A (en) * | 2013-03-06 | 2014-09-22 | Shimizu Corp | Vibration damper apparatus |
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