CN111219437A - Magnetorheological particle damper capable of recycling energy - Google Patents
Magnetorheological particle damper capable of recycling energy Download PDFInfo
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- CN111219437A CN111219437A CN202010067475.8A CN202010067475A CN111219437A CN 111219437 A CN111219437 A CN 111219437A CN 202010067475 A CN202010067475 A CN 202010067475A CN 111219437 A CN111219437 A CN 111219437A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/10—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using liquid only; using a fluid of which the nature is immaterial
- F16F9/14—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect
- F16F9/16—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts
- F16F9/18—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein
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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
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/30—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium with solid or semi-solid material, e.g. pasty masses, as damping medium
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/3207—Constructional features
- F16F9/3235—Constructional features of cylinders
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/34—Special valve constructions; Shape or construction of throttling passages
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/53—Means for adjusting damping characteristics by varying fluid viscosity, e.g. electromagnetically
- F16F9/535—Magnetorheological [MR] fluid dampers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F2222/00—Special physical effects, e.g. nature of damping effects
- F16F2222/12—Fluid damping
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F2224/00—Materials; Material properties
- F16F2224/04—Fluids
- F16F2224/045—Fluids magnetorheological
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The invention relates to a magnetorheological particle damper capable of recycling energy, which comprises a particle damping mechanism, a magnetorheological damping mechanism and an energy recycling mechanism, wherein the particle damping mechanism is arranged on the particle damping mechanism; the particle damping mechanism comprises a ball screw, blades and particles, and the ball screw converts linear motion into rotation of the blades, so that energy consumption of particle extrusion collision is caused; the magnetorheological damping mechanism comprises a cylinder barrel, a piston, a one-way valve and an annular flow passage, wherein the piston and the annular flow passage divide an inner space into an upper cavity, a middle cavity and a lower cavity, the annular flow passage is provided with a coil, pipelines are arranged on two sides of the cylinder barrel, magnetorheological fluid is caused to pass through the annular flow passage and the pipelines by the movement of the piston, a magnetorheological effect is generated when the magnetorheological fluid passes through the annular flow passage, a controllable damping force is obtained by changing the current led into the coil, and the one-way valve converts the movement of the liquid in the pipelines into one; the connecting piece enables the particle damping mechanism and the magneto-rheological damping mechanism to work cooperatively, so that the energy consumption capability of the system is enhanced, and the reliability of the system is improved.
Description
Technical Field
The invention belongs to the field of vibration control of engineering structures, and particularly relates to a magnetorheological particle damper capable of recycling energy.
Background
The magneto-rheological damper is a novel semi-active damping device based on the controllable characteristic of magneto-rheological fluid, has the advantages of high response speed, simple structure, small volume, easy control and the like, is an ideal vibration isolation and damping device, and has wide application prospect in the field of vibration control. The magnetic exciting coil of the magneto-rheological damper mainly has two winding modes, namely, the magnetic exciting coil is wound on a cylinder body (an outer winding mode for short) and wound on a piston (an inner winding mode for short), when the magnetic exciting coil is wound outside the piston, most of magnetic force lines of the magneto-rheological damper are parallel to the flowing direction of the magneto-rheological fluid, when the magnetic exciting coil is wound in the piston, most of magnetic force lines of the magneto-rheological damper are vertical to the flowing direction of the magneto-rheological fluid, the magnetic force lines parallel to the flowing direction of the magneto-rheological fluid contribute less to the magneto-rheological effect, and the magnetic force lines vertical to the flowing direction of the magneto-rheological.
The common magneto-rheological damper winds the electromagnetic coil on a piston of the damper, and a lead of the damper moves along with the piston, so that the lead is easily damaged under long-term reciprocating motion and sudden large-displacement impact, and great potential safety hazard exists; meanwhile, the magnetic field of the moving-coil magnetorheological damper always moves because the coil always moves, and the response speed of the magnetorheological effect can be reduced.
Most of the liquid in the common damper moves irregularly in a reciprocating manner, so that the collection and utilization of energy are influenced.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, provides a novel magnetorheological damper with high response speed and high magnetic field utilization rate and capable of recycling energy, and compounds a particle damping mechanism on the basis to enhance the energy consumption capability of the damper and improve the safety and reliability of the damper.
The purpose of the invention is realized by the following technical scheme:
a magnetorheological particle damper capable of recycling energy comprises a particle damping mechanism and a magnetorheological damping mechanism connected through a connecting piece, wherein,
the particle damping mechanism comprises a closed particle damping cylinder barrel and a ball screw, the ball screw coaxially penetrates through the particle damping cylinder barrel, damping particles are filled in the particle damping cylinder barrel, and blades are mounted on the ball screw in the particle damping cylinder barrel and rotate along with the up-and-down movement of the ball screw;
the magnetorheological damping mechanism comprises a closed magnetorheological damping cylinder barrel and a piston rod, the piston rod coaxially penetrates through the magnetorheological damping cylinder barrel, a piston is mounted at the lower end of the piston rod, magnetorheological fluid is filled in the magnetorheological damping cylinder barrel, an annular flow channel is arranged on the lower portion of the piston of the magnetorheological damping cylinder barrel, and the piston and the annular flow channel divide the inner space of the magnetorheological damping cylinder barrel to form an upper cavity, a middle cavity and a lower cavity;
and a pipeline for enabling the magnetorheological fluid to flow in a single direction is arranged between the upper cavity and the lower cavity, and an energy collecting device is arranged in the pipeline.
Under the action of wind or/and earthquake and the like, the particle damping mechanism converts linear motion into rotary motion of the blades through the ball screw, so that damping particles are driven to extrude and collide to consume energy, the piston in the magnetorheological damping mechanism moves to cause magnetorheological fluid to generate damping force to consume energy when passing through the annular flow passage and the pipeline, and the particle damping mechanism and the magnetorheological damping mechanism work in a cooperative mode through the connecting piece, so that the energy consumption capacity of the system is enhanced, and the reliability of the system is improved.
Furthermore, the particle damping mechanism further comprises a first cover plate and a second cover plate which are respectively covered at the upper end and the lower end of the particle damping cylinder barrel.
Furthermore, the magneto-rheological damping mechanism is formed by enclosing a third cover plate and a magneto-rheological damping cylinder barrel.
Furthermore, the pipeline is provided with two paths which are respectively arranged on the left side wall and the right side wall of the magnetorheological damping cylinder barrel, and one-way valves are arranged at the joints of the pipeline and the upper cavity and the lower cavity.
Further, the ball screw fixes the blades through a bearing and a nut, the blades are uniformly arranged along the circumference, the nut is installed on the ball screw, and the blades are fixedly connected with the nut.
Furthermore, a plurality of damping holes are formed in the blade, the ball screw moves to drive the blade to rotate under the action of wind or/and earthquake and the like, and the vibration damping and energy dissipation effects are provided through collision and extrusion between particles and the blade, and friction between the particles and the damping holes.
Furthermore, the particle damping cylinder barrel is connected with the magnetorheological damping cylinder barrel through a steel pipe, and the ball screw is connected with the piston rod through a flange.
Furthermore, a circuitous channel is arranged in the annular flow passage, and vertical channels and horizontal channels in the channel are alternately arranged.
Furthermore, a coil is arranged on the outer side of the annular flow channel, the coil is electrified, magnetorheological fluid generates a magnetorheological effect when passing through the annular flow channel to generate damping force, and the intensity of the magnetic field is changed by changing the current introduced into the coil, so that controllable damping force is obtained.
Further, the energy harvesting device is an energy harvesting mechanism utilizing unidirectional liquid flow, such as a turbine or the like.
Compared with the prior art, the advantages of the embodiment are as follows:
1) the particle damping mechanism and the magneto-rheological damping mechanism are connected through the connecting piece, so that the energy consumption capability of the system is enhanced, the magneto-rheological damping mechanism is internally provided with a plurality of pipelines, and the pipelines are internally provided with energy collecting devices for collecting energy; when no current is added or a circuit fails, the magneto-rheological damping mechanism is changed into a traditional damper, and the magneto-rheological damping mechanism also has certain energy consumption capability, so that the safety and reliability of the system are enhanced.
2) The magnetic force lines generated by the externally wound excitation coil are parallel to the axis of the coil, and the annular flow channel part is provided with the vertical and horizontal channels, so that the magnetorheological fluid mainly flows in the radial direction when passing through the damping generation device, the flowing direction of the magnetorheological fluid is ensured to be vertical to the direction of the magnetic force lines, and the contribution of a magnetic field to the magnetorheological effect is greatly improved.
3) The coil is fixed, and the generated magnetic field is also fixed, so that the damage risk of the wire is reduced, and the response speed of the magneto-rheological effect is improved.
4) The invention controls the movement of liquid in the pipeline to be unidirectional flow by arranging the one-way valve, thereby more easily realizing the collection and utilization of energy.
Drawings
FIG. 1 is a front elevation view of a recyclable magnetorheological particle damper of the present invention;
FIG. 2 is a turbine form of the energy recovery device of the present invention;
reference numbers in the figures: 11 is a ball screw, 12 is a first cover plate, 13 is a particle damping cylinder, 14 is a blade, 15 is a damping particle, 16 is a second cover plate, 21 is a flange, 22 is a steel pipe, 31 is a third cover plate, 32 is a piston rod, 33 is a magneto-rheological damping cylinder, 34 is a piston, 35 is a pipeline, 36 is a coil, 37 is an annular flow passage, 38 is a left check valve, 39 is a right check valve, 310 is magneto-rheological fluid, 311 is an upper cavity, 312 is a middle cavity, 313 is a lower cavity, and 4 is an energy collecting device.
Detailed Description
The invention is described in detail below with reference to the figures and specific embodiments.
Examples
As shown in fig. 1, an energy-recoverable magnetorheological particle damper includes a particle damping mechanism, a connecting member, a magnetorheological damping mechanism and an energy recovering mechanism. The particle damping mechanism is formed by enclosing a first cover plate 12, a particle damping cylinder barrel 13 and a second cover plate 16, a ball screw 11 penetrates through the first cover plate 12 and the second cover plate 16 in a sealing mode and is coaxial with the particle damping cylinder barrel 13, blades 14 are fixed on rods, damping particles 15 are filled in the cylinder barrel, and the particle damping mechanism is connected with the magnetorheological damping mechanism through a connecting piece.
The magnetorheological damping mechanism is formed by enclosing a third cover plate 31 and a magnetorheological damping cylinder barrel 33 with thicker side wall, a piston rod 32 penetrates through the third cover plate 31 in a sealing mode and is coaxial with the magnetorheological damping cylinder barrel 33, the lower end of the piston rod is fixedly connected with a piston 34, an annular flow channel 37 is arranged at the middle lower part of the cylinder barrel, the annular flow channel and the piston divide the cavity into an upper cavity 311, a middle cavity 312 and a lower cavity 313, pipelines 35 are arranged in the left side wall and the right side wall of the cylinder barrel, the left pipeline is respectively connected with the upper cavity and the lower cavity through two one-way valves 38, the right pipeline is respectively connected with the upper cavity and the lower cavity through two one-way valves 39, an energy collecting device; when the piston moves upwards, the one-way valve 38 is opened, the one-way valve 39 is closed, the magnetorheological fluid in the upper cavity 311 flows into the lower cavity through the left pipeline and then reaches the middle cavity through the annular flow channel, when the piston moves downwards, the one-way valve 38 is closed, the one-way valve 39 is opened, the magnetorheological fluid in the middle cavity 312 reaches the lower cavity through the annular flow channel and then flows into the upper cavity through the right pipeline, and therefore the liquid in the left pipeline and the liquid in the right pipeline move in a one-way mode in a constant direction.
Under the action of wind or/and earthquake and the like, the particle damping mechanism converts linear motion into rotary motion of the blades through the ball screw, so that the particles are driven to extrude and collide to consume energy, the piston in the magnetorheological damping mechanism moves to cause magnetorheological fluid to generate damping force to consume energy when passing through the annular flow passage and the pipeline, and the connecting piece enables the particle damping mechanism and the magnetorheological damping mechanism to work cooperatively, so that the energy consumption capability of the system is enhanced, and the reliability of the system is improved.
In this embodiment, the ball screw 11 fixes the blades 14 through the bearing and the nut, the blades are uniformly arranged along the circumference, the nut is installed on the ball screw, and the blades 14 are fixedly connected with the nut.
In this embodiment, the blade 14 is provided with a plurality of damping holes, and under the action of wind or/and earthquake, the motion of the ball screw drives the blade 14 to rotate, so as to provide the vibration damping and energy dissipation effects through collision and extrusion between particles and the blade, and friction between particles and the damping holes.
In this embodiment, the ball screw 11 and the piston rod 32 are connected by the flange 21, and the steel pipe 22 is connected with the second cover plate 16 and the third cover plate 31, so that the particle damping mechanism and the magnetorheological damping mechanism are connected into a whole, and the two mechanisms can work cooperatively, thereby enhancing the energy consumption capability and improving the system reliability.
In this embodiment, the coils 36 are disposed on two sides of the annular flow channel 37, the vertical and horizontal channels in the annular flow channel are alternately disposed, the coils 36 are energized, the magnetorheological fluid generates a magnetorheological effect when passing through the annular flow channel, damping force is generated, and the magnetic field strength is changed by changing the current introduced into the coils, so as to obtain controllable damping force.
In the present embodiment, the energy collecting device 4 is an energy collecting mechanism using unidirectional water flow, such as a turbine or the like.
The embodiments described above are described to facilitate an understanding and use of the invention by those skilled in the art. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make improvements and modifications within the scope of the present invention based on the disclosure of the present invention.
Claims (10)
1. The magneto-rheological particle damper capable of recycling energy is characterized by comprising a particle damping mechanism and a magneto-rheological damping mechanism connected through a connecting piece, wherein,
the particle damping mechanism comprises a closed particle damping cylinder barrel and a ball screw, the ball screw coaxially penetrates through the particle damping cylinder barrel, damping particles are filled in the particle damping cylinder barrel, and blades are mounted on the ball screw in the particle damping cylinder barrel and rotate along with the up-and-down movement of the ball screw;
the magnetorheological damping mechanism comprises a closed magnetorheological damping cylinder barrel and a piston rod, the piston rod coaxially penetrates through the magnetorheological damping cylinder barrel, a piston is mounted at the lower end of the piston rod, magnetorheological fluid is filled in the magnetorheological damping cylinder barrel, an annular flow channel is arranged on the lower portion of the piston of the magnetorheological damping cylinder barrel, and the piston and the annular flow channel divide the inner space of the magnetorheological damping cylinder barrel to form an upper cavity, a middle cavity and a lower cavity;
and a pipeline for enabling the magnetorheological fluid to flow in a single direction is arranged between the upper cavity and the lower cavity, and an energy collecting device is arranged in the pipeline.
2. The recyclable magnetorheological particle damper as in claim 1, wherein the particle damping mechanism further comprises a first cover plate and a second cover plate respectively covering the upper and lower ends of the particle damping cylinder.
3. The recyclable magnetorheological particle damper of claim 1, wherein the magnetorheological damping mechanism is enclosed by a third cover plate and a magnetorheological damping cylinder.
4. The damper of claim 1, wherein the pipeline comprises two paths, the two paths are respectively disposed on the left and right side walls of the magnetorheological damping cylinder, and one-way valves are disposed at the interfaces of the pipeline with the upper chamber and the lower chamber.
5. The recyclable magnetorheological particle damper of claim 1, wherein the ball screw fixes the blades by means of bearings and nuts, the blades are arranged uniformly along the circumference, the nuts are mounted on the ball screw, and the blades are fixedly connected with the nuts.
6. The energy-recoverable magnetorheological particle damper according to claim 5, wherein the blades are provided with a plurality of damping holes.
7. The recyclable magnetorheological particle damper as in claim 1, wherein the particle damping cylinder is connected with the magnetorheological damping cylinder through a steel pipe, and the ball screw is connected with the piston rod through a flange.
8. The recyclable magnetorheological particle damper of claim 1, wherein the annular flow channel is provided with a circuitous channel, and wherein the vertical and horizontal channels alternate.
9. The recyclable magnetorheological particle damper as in claim 8, wherein the annular flow passage is externally provided with a coil, the coil is energized, and magnetorheological fluid passes through the annular flow passage to generate a magnetorheological effect and generate a damping force.
10. The energy recoverable magnetorheological particle damper of any one of claims 1 to 9, wherein the energy harvesting device is an energy harvesting mechanism utilizing unidirectional fluid flow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010067475.8A CN111219437B (en) | 2020-01-20 | 2020-01-20 | Magnetorheological particle damper capable of recycling energy |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010067475.8A CN111219437B (en) | 2020-01-20 | 2020-01-20 | Magnetorheological particle damper capable of recycling energy |
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| CN111219437A true CN111219437A (en) | 2020-06-02 |
| CN111219437B CN111219437B (en) | 2021-07-20 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112228493A (en) * | 2020-11-13 | 2021-01-15 | 嘉兴学院 | Magnetorheological suspensions buffer |
| CN112343958A (en) * | 2020-11-03 | 2021-02-09 | 重庆大学 | Low-current large-damping-force magnetorheological damping device |
| CN113513558A (en) * | 2021-07-07 | 2021-10-19 | 深圳市朝上科技有限责任公司 | High output power vibration isolation suspension based on mix damping mode |
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| CN104389753A (en) * | 2014-11-05 | 2015-03-04 | 湖南大学 | Vibration energy recovering device |
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| EP1908985A1 (en) * | 2006-10-02 | 2008-04-09 | Delphi Technologies, Inc. | Twin-tube magnetorheological damper |
| CN101797910A (en) * | 2010-04-06 | 2010-08-11 | 重庆大学 | Collision energy dissipation component based on magnetorhrologic grease and device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112343958A (en) * | 2020-11-03 | 2021-02-09 | 重庆大学 | Low-current large-damping-force magnetorheological damping device |
| CN112228493A (en) * | 2020-11-13 | 2021-01-15 | 嘉兴学院 | Magnetorheological suspensions buffer |
| CN112228493B (en) * | 2020-11-13 | 2022-06-17 | 嘉兴学院 | Magnetorheological suspensions buffer |
| CN113513558A (en) * | 2021-07-07 | 2021-10-19 | 深圳市朝上科技有限责任公司 | High output power vibration isolation suspension based on mix damping mode |
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| CN111219437B (en) | 2021-07-20 |
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