CN113803399A - High-load magnetorheological fluid-elastic three-way vibration damper - Google Patents
High-load magnetorheological fluid-elastic three-way vibration damper Download PDFInfo
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- CN113803399A CN113803399A CN202111064730.4A CN202111064730A CN113803399A CN 113803399 A CN113803399 A CN 113803399A CN 202111064730 A CN202111064730 A CN 202111064730A CN 113803399 A CN113803399 A CN 113803399A
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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
- F16F13/00—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs
- F16F13/04—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper
- F16F13/26—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper characterised by adjusting or regulating devices responsive to exterior conditions
- F16F13/30—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper characterised by adjusting or regulating devices responsive to exterior conditions comprising means for varying fluid viscosity, e.g. of magnetic or electrorheological fluids
- F16F13/305—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs comprising both a plastics spring and a damper, e.g. a friction damper characterised by adjusting or regulating devices responsive to exterior conditions comprising means for varying fluid viscosity, e.g. of magnetic or electrorheological fluids magnetorheological
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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)
- Fluid-Damping Devices (AREA)
Abstract
The invention relates to a high-load magnetorheological fluid-elastic three-way vibration damper, which comprises a magnetorheological fluid damper and a high-load elastic body vibration damper, wherein magnetorheological fluid is filled in an inner sleeve through a liquid injection hole of a liquid injection end cover, and the outer sleeve is connected with the inner sleeve through rubber; the magnetorheological fluid-elastic three-way vibration damper can be regarded as the parallel connection of an elastomer vibration damper and a magnetorheological fluid damper, has the rigidity of the elastomer vibration damper and the damping of a passive damper in a non-electrified state, quickly generates a corresponding magnetic field after different currents are introduced, and the magnetorheological fluid damper generates corresponding magnetorheological force, so that the damping of the device can be correspondingly changed, and the damping force of an engine suspension system can be changed in real time to adapt to different environment excitation frequencies. The invention has the following remarkable advantages: 1) the supporting force is large and the damping is adjustable; 2) three-way vibration reduction can be realized; 3) the magnetic flux leakage is less, and the energy consumption is low; 4) the temperature influence is small.
Description
Technical Field
The invention relates to a high-load vibration damper, in particular to a high-load magnetorheological fluid-elastic three-way vibration damper.
Background
The magnetorheological fluid and the application device thereof, namely the clutch, were invented by Rabinow in 1948. The magnetorheological material has quick response and good reversibility, and can realize the continuous control of the mechanical and electrical properties of the material by adjusting the magnetic field, thereby having wide application prospect in the aspects of vibration reduction and noise reduction in the fields of weapons, aviation, aerospace and the like.
In the entire military vehicle system, the vehicle engine system is an important factor affecting the vibration level of the vehicle, and is a special subsystem, which is both the excitation source and the forced vibration body. On one hand, in the whole vehicle system, the mass of the engine is large, the vehicle body cannot be regarded as an infinite platform, and the purpose of the engine shock absorber is to reduce the transmission of force from the engine to the vehicle body and reduce the vibration level of the vehicle body. On the other hand, when the engine is in an operating state, the vehicle is in a certain motion state, so that road excitation also has a certain influence on the vibration of the vehicle body, and the engine damper has another purpose of reducing the transmission of the force from the vehicle body to the engine.
The ideal engine suspension has the characteristics of low frequency, high rigidity and large damping in order to attenuate low-frequency large-amplitude vibration caused by uneven idling gas pressure of a road surface and an engine; in order to reduce noise in the vehicle and improve the operation stability, the automobile steering wheel has the characteristics of high frequency, small rigidity and small damping. The engine mount system is objectively required to have frequency-and amplitude-varying characteristics. The existing suspension vibration damping system widely uses metal spring vibration dampers, rubber or visco-elastic material vibration dampers, coulomb friction damping vibration dampers and the like, energy is consumed through internal friction, the transmission of force from an engine to a vehicle body is reduced, and the vibration of the vehicle body is reduced, but the rigidity and the damping of the suspension vibration dampers can not be changed along with the vibration environment, and the existing suspension device only has a unidirectional vibration damping effect. Because the vibration of the engine is usually the violent vibration with multiple dominant frequencies and wide frequency, the traditional dynamic vibration absorber adopting fixed parameters can not absorb the vibration of all frequency domains. The magnetorheological elastomer has high rigidity, but the installation position of the excitation device is limited, the temperature has large influence on the performance of the magnetorheological elastomer, and the magnetorheological fluid has large damping but insufficient supporting force.
Disclosure of Invention
The invention aims to provide a high-load magnetorheological fluid-elastic three-way damping device.
The technical solution for realizing the purpose of the invention is as follows:
the high-load magnetorheological fluid-elastic three-way vibration damper comprises a magnetorheological fluid damper and a high-load elastomer vibration damper.
The magnetorheological fluid damper comprises a piston rod 1, a piston rod cover 4, a piston 8, an inner sleeve 9, a liquid injection end cover 10, an excitation coil 11 and a damping channel 12, wherein two communicated grooves are respectively designed at the upper end of the inner sleeve 9 and the inner part of the liquid injection end cover 10, a sealing ring and a self-lubricating composite bearing copper sleeve are respectively installed to form a sealing structure, the piston rod 1 consists of two parts with different diameters, a groove is processed on the outer wall of the piston 8, the excitation coil 11 is wound in the groove of the piston 8, the piston 8 is sleeved in from the lower end of the small-diameter part of the piston rod 1, a piston rod cover 4 is screwed on the lower end of the small-diameter part of the piston rod 1 to fix the position of the piston 8, the piston rod 1 and the piston 8 go deep into the inner sleeve 9, the large-diameter part of the piston rod 1 extends out of a sealing ring and a self-lubricating composite bearing copper sleeve at the upper end of the inner sleeve 9, and a damping channel 12 is formed by a gap between the outer wall of the piston 8 and the inner wall of the inner sleeve 9; the liquid injection end cover 10 is provided with a liquid injection hole, and magnetorheological fluid is injected into the inner sleeve 9 through the liquid injection hole; the liquid injection end cover 10 is positioned outside the piston 8, a sealing ring and a self-lubricating composite bearing copper sleeve which are arranged inside the liquid injection end cover 10 are sleeved at the tail end of the small-diameter part of the piston rod 1 and fixed at the lower end of the cavity of the inner sleeve 9, and the piston rod 1 can move along the vertical direction under the limitation of a step formed by the large-diameter part and the small-diameter part of the piston rod 1 and the self-lubricating composite bearing copper sleeve which is arranged inside the liquid injection end cover 10;
the high-load elastomer shock absorber comprises an outer shell 2, a reinforcing plate 3, a transition seat 5, an upper cover 6 and a spherical hinge 7, wherein an inner sleeve 9 is a shared component of the magnetorheological fluid damper and the high-load elastomer shock absorber, the outer shell 2 is sleeved on the periphery of the inner sleeve 9 and is coaxial with the inner sleeve, the front end edge of the outer shell 2 is connected with the upper cover 6 through a screw, the spherical hinge 7 extends into a cavity at one end of a piston rod 1 and is connected with the piston rod 1 through a lower thread, the upper cover 6 is sleeved on the periphery of the spherical hinge 7, and the inner surface of the upper cover 6 is fixedly welded with the outer surface of the spherical hinge 7; the outer shell 2 and the inner sleeve 9 are connected by rubber.
Further, rubber between the outer shell 2 and the inner sleeve 9 is integrally prepared, so that the connection strength and the material stability are ensured.
Further, the lower portions of the inner case 9 and the outer case 2 are sized according to the sizes of the piston 8 and the damping passage 12, and the outer case 2 and the inner case 9 are concentrically configured to ensure the maximum relative displacement of the outer case 2 and the inner case 9.
Further, the piston rod 1 and the piston rod cap 4 are made of a titanium alloy.
Further, the piston 8 and the inner sleeve 9 are made of a magnetically conductive material.
Further, the outer shell 2, the reinforcing plate 3, the transition seat 5, the upper cover 6 and the liquid injection end cover 10 are made of 45 steel.
Further, the housing 2 is connected to an engine mount 13, the engine mount 13 is connected to and supports the engine, the transition seat 5 is located above the carrier 14 and connected to the carrier 14, and the reinforcing plate 3 is placed between the transition seat 5 and the engine mount 13.
Further, the shell 2 of the high-load magnetorheological fluid-elastic three-way vibration damper is sleeved from the lower part and is arranged on the engine brackets 13, the upper parts of the two engine brackets 13 are connected with the engine 15, and the lower part of the high-load magnetorheological fluid-elastic three-way vibration damper is connected with the carrier 14 through the transition seat 5; when the engine 15 and the carrier 14 move relatively, the piston 8 and the inner sleeve 9, the inner sleeve 9 and the outer shell 2 generate relative displacement, the magnetorheological fluid damper and the high-load elastic body shock absorber generate damping force and elastic force at the same time, and the damping force of the magnetorheological fluid damper is changed by adjusting the exciting current of the exciting coil 11.
The magnetorheological fluid-elastic three-way vibration damper can be regarded as the parallel connection of an elastomer vibration damper and a magnetorheological fluid damper, the rigidity of the elastomer vibration damper and the damping of a passive damper are realized under the non-electrified state, after different currents are introduced into an excitation coil, the magnetic induction intensity and the damping coefficient at the damping channel of the magnetorheological fluid damper are rapidly changed, when a piston moves up and down along with a piston rod, the damping force of the magnetorheological fluid damper is correspondingly changed, the damping force of an engine suspension system can be controlled in real time by controlling the current of the excitation coil to adapt to different environmental excitation frequencies, the mutual influence of the vibration of a vehicle body and an engine is reduced, and the adaptability of a vehicle engine to the vibration environment and the reliability, comfort, smoothness and maneuverability of the whole vehicle are improved.
Compared with the prior art, the invention has the following remarkable advantages: 1) the supporting force is large and the damping is adjustable; 2) three-way vibration reduction can be realized; 3) the magnetic flux leakage is less, and the energy consumption is low; 4) the temperature influence is small.
The present invention is described in further detail below with reference to the attached drawing figures.
Drawings
FIG. 1 is a schematic view of a high load magnetorheological fluid-elastic three-way damping device of the present invention;
FIG. 2 is a three-dimensional schematic view of each component of the high-load magnetorheological fluid-elastic three-way damping device according to the invention;
FIG. 3 is a schematic view of the cross section and internal magnetic circuit of the high-load magnetorheological fluid-elastic three-way damping device of the invention;
fig. 4 is a schematic view of the installation of the high-load magnetorheological fluid-elastic three-way damping device.
Detailed Description
The invention is described in further detail below with reference to figures 1 to 4.
Referring to fig. 1 to 4, the high-load magnetorheological fluid-elastic three-way vibration damper of the invention comprises a magnetorheological fluid damper and a high-load elastomer vibration damper.
The high-load elastomer shock absorber comprises an outer shell 2, an inner sleeve 9, a reinforcing plate 3, a transition seat 5, an upper cover 6 and a spherical hinge 7, wherein the inner sleeve 9 is a shared component of the magnetorheological fluid shock absorber and the high-load elastomer shock absorber, the outer shell 2 is sleeved on the periphery of the inner sleeve 9 and is coaxial with the inner sleeve, the outer shell 2 is connected with the upper cover 6 through a screw, the spherical hinge 7 extends into a cavity at one end of a piston rod 1 and is connected with the piston rod 1 through a lower thread, the upper cover 6 is sleeved on the periphery of the spherical hinge 7, and the inner surface of the upper cover 6 is welded and fixedly connected with the outer surface of the spherical hinge 7. The shell 2 and the inner sleeve 9 are integrally prepared and molded by rubber, so that the connection strength and the material stability are ensured.
The magnetorheological fluid damper comprises a piston rod 1, a piston rod cover 4, a piston 8, an inner sleeve 9, a liquid injection end cover 10, an excitation coil 11 and a damping channel 12, wherein two communicated grooves are respectively designed at the upper end of the inner sleeve 9 and the inner part of the liquid injection end cover 10, a sealing ring and a self-lubricating composite bearing copper sleeve are respectively installed to form a sealing structure, the piston rod 1 consists of two parts with different diameters, a groove is processed on the outer wall of the piston 8, the excitation coil 11 is wound in the groove of the piston 8, the piston 8 is sleeved in from the lower end of the small-diameter part of the piston rod 1, a piston rod cover 4 is screwed on the lower end of the small-diameter part of the piston rod 1 to fix the position of the piston 8, the piston rod 1 and the piston 8 go deep into the inner sleeve 9, the large-diameter part of the piston rod 1 extends out of a sealing ring and a self-lubricating composite bearing copper sleeve at the upper end of the inner sleeve 9, and a damping channel 12 is formed by a gap between the outer wall of the piston 8 and the inner wall of the inner sleeve 9; the liquid injection end cover 10 is provided with a liquid injection hole, and magnetorheological fluid is injected into the inner sleeve 9 through the liquid injection hole; the liquid injection end cover 10 is positioned outside the piston 8, a sealing ring and a self-lubricating composite bearing copper sleeve which are arranged inside the liquid injection end cover 10 are sleeved at the tail end of the small-diameter part of the piston rod 1 and fixed at the lower end of the cavity of the inner sleeve 9, and the piston rod 1 can move along the vertical direction under the limitation of a step formed by the large-diameter part and the small-diameter part of the piston rod 1 and the self-lubricating composite bearing copper sleeve which is arranged inside the liquid injection end cover 10;
the shell 2 is connected with an engine bracket 13 through four screws, the engine bracket 13 is connected with and supports an engine, the transition seat 5 is positioned above the carrier 14 and is connected with the carrier 14 through two screws, and the reinforcing plate 3 is placed between the transition seat 5 and the engine bracket 13 for reinforcing the structural stability.
In the high-load magnetorheological fluid-elastic three-way vibration damper, in order to ensure the structural strength, the piston rod 1 and the piston rod cover 4 are made of titanium alloy, the piston 8 and the inner sleeve 9 are made of magnetic materials, and the outer shell 2, the reinforcing plate 3, the transition seat 5, the upper cover 6 and the liquid injection end cover 10 are made of 45 steel. In addition, the specific size of the piston 8 and the damping channel 12 is determined by the optimized design result of the magnetic circuit and the requirement of the damping force, so that the magnetorheological fluid at the position of the damping channel 12 reaches magnetic saturation when the minimum number of turns of the coil is switched on and the maximum current is supplied, and the vibration damping device obtains the maximum damping force. In order to increase the loading capacity of the vibration damper and simultaneously not influence the vertical movement of the piston 8, the outer shell 2 and the inner sleeve 9 of the vibration damper are both designed into a hollow round table shape with an inclined angle at the upper part, the lower part is cylindrical, the inclined angle and the height of the lower part can be adjusted according to specific loads, the inclined angle meets the load requirement, and the height of the lower part meets the maximum stroke requirement of the piston. The inner sleeve 9 and the lower part of the outer shell 2 are dimensioned according to the dimensions of the piston 8 and the damping channel 12. And the outer housing 2 and the inner housing 9 are concentrically configured to ensure maximum relative displacement between the outer housing 2 and the inner housing 9.
When the exciting coil 11 is electrified, the magnetorheological fluid at the piston 8, the inner sleeve 9 and the damping channel 12 form a closed magnetic circuit, as shown by a black solid line in fig. 3, and the direction of the magnetic field is related to the direction of the exciting current.
With reference to fig. 1, 2, 3 and 4, in operation, the high-load magnetorheological fluid-elastic three-way vibration damper of the invention is sleeved from below and mounted on the engine brackets 13, the upper parts of the two brackets 13 are connected with the engine 15, and the lower parts of the vibration dampers are connected with the carrier 14 through the transition seat 5. When the engine 15 and the carrier 14 move relatively, the piston 8 and the inner sleeve 9, the inner sleeve 9 and the outer shell 2 generate relative displacement, the magnetorheological fluid damper and the high-load elastic body shock absorber generate damping force and elastic force at the same time, and the damping force of the magnetorheological fluid damper is changed by adjusting the exciting current of the exciting coil 11.
The working principle of the high-load magnetorheological fluid-elastic three-way vibration damper is as follows: the top of a piston rod 1 of the vibration damper is connected with an engine 15 through a spherical hinge 7, an upper cover 6, a shell 2 and an engine bracket 13, the bottom of the piston rod 1 is in threaded connection with a piston rod cover 4 to fix a piston 8, external threads at the bottom of an inner sleeve 9 are connected with internal threads of a transition seat 5, and the transition seat 5 is connected with a carrier 14 through two screws; a rubber elastomer is arranged between the inner sleeve 9 and the outer shell 2 of the vibration damper, so that the static load of an engine can be conveniently borne, and magnetorheological fluid liquid is filled in a cavity of the inner sleeve 9; the driving current in the magnet exciting coil 11 transversely wound by the piston 8 is continuously controllable, so that the magnetic induction intensity sensed by the magnetorheological fluid at the position of the damping channel in the cavity can be adjusted and controlled; when the damper is in work, when the outer shell 2 of the damper is excited by vibration of an engine to generate vertical upward (or downward) movement, the vibration drives the piston 8 to move upward (or downward) through the spherical hinge 7 and the piston rod 1, the liquid pressure of the upper cavity and the lower cavity is changed, the magnetorheological fluid flows between the upper cavity and the lower cavity through the annular damping channel 12 between the piston 8 and the inner shell 9, the rheological property of the magnetorheological fluid is changed under the action of an external magnetic field, namely the magnetorheological fluid is changed from liquid to a solid-like state, the damping and the viscosity are changed, the vertical movement resistance of the piston rod 1 of the damper is further increased, and the aim of quickly changing the damping force of the damper is fulfilled. Meanwhile, the damping force of the magnetorheological fluid damper is controllable in a wider excitation frequency range. Due to the adoption of the rubber elastic body, when the vibration isolation system has abnormal conditions such as controller failure or sensor failure, the vibration isolation device can also be used as a passive vibration isolation mode, so that failure safety is ensured. And when the engine generates transverse vibration, the vibration is directly transmitted to the outer shell 2 of the vibration damper, the position of the spherical hinge 7 is limited, the rotation of 360 degrees can be guaranteed, the transverse vibration is transmitted to the piston 8 and the inner sleeve 9, and the whole magneto-rheological damper can generate transverse motion relative to the outer shell 2. Therefore, the rubber elastic body between the outer housing 2 and the inner housing 9 can also play a role of lateral vibration damping when the engine and the carrier make lateral relative movements. Therefore, when the engine 15 and the carrier 14 move relatively, the magnetorheological fluid damper plays a vertical vibration damping role, the high-load elastic body damper plays a transverse vibration damping role, and under a Cartesian coordinate system, the high-load magnetorheological fluid-elastic three-way vibration damping device can realize spatial three-way vibration damping.
The invention can be used for reducing the mutual influence of the vibration of the vehicle body and the engine, and improving the adaptability of the vehicle engine to the vibration environment and the reliability, comfort, smoothness and maneuverability of the whole vehicle.
Claims (9)
1. A high-load magnetorheological fluid-elastic three-way damping device is characterized in that: the device comprises a magnetorheological fluid damper and a high-load elastomer shock absorber;
the magnetorheological fluid damper comprises a piston rod [1], a piston rod cover [4], a piston [8], an inner sleeve [9], an injection end cover [10], an excitation coil [11] and a damping channel [12], wherein two communicated grooves are respectively designed at the upper end of the inner sleeve [9] and inside the injection end cover [10], a sealing ring and a self-lubricating composite bearing copper sleeve are respectively installed to form a sealing structure, the piston rod [1] consists of two parts with different diameters, a groove is processed on the outer wall of the piston [8], the excitation coil [11] is wound in the groove of the piston [8], the piston [8] is sleeved in from the lower end of the small-diameter part of the piston rod [1], the piston rod cover [4] is screwed on the lower end of the small-diameter part of the piston rod [1] to fix the position of the piston [8], the piston rod [1] and the piston [8] are together deep into the inner sleeve [9], the large-diameter part of the piston rod [1] extends out from the sealing ring and the self-lubricating composite bearing copper sleeve at the upper end of the inner sleeve [9], a damping channel (12) is formed by a gap between the outer wall of the piston (8) and the inner wall of the inner sleeve (9); a liquid injection hole is formed in the liquid injection end cover [10], and magnetorheological fluid is injected into the inner sleeve [9] through the liquid injection hole; the liquid injection end cover [10] is positioned outside the piston [8], a sealing ring and a self-lubricating composite bearing copper sleeve which are arranged in the liquid injection end cover [10] are sleeved at the tail end of the small-diameter part of the piston rod [1] and fixed at the lower end of the cavity of the inner sleeve [9], and the piston rod [1] is limited by a step formed by the large-diameter part and the small-diameter part of the piston rod [1] and the self-lubricating composite bearing copper sleeve which is arranged in the liquid injection end cover [10] to move along the vertical direction;
the high-load elastomer shock absorber comprises an outer shell [2], a reinforcing plate [3], a transition seat [5], an upper cover [6] and a spherical hinge [7], wherein an inner sleeve [9] is a shared component of the magnetorheological fluid damper and the high-load elastomer shock absorber, the outer shell [2] is sleeved on the periphery of the inner sleeve [9] and is coaxial with the inner sleeve, the front end edge of the outer shell [2] is connected with the upper cover [6] through a screw, the spherical hinge [7] extends into a cavity at one end of a piston rod [1] and is connected with the piston rod [1] through a lower thread, the upper cover [6] is sleeved on the periphery of the spherical hinge [7], and the inner surface of the upper cover [6] is welded and fixedly connected with the outer surface of the spherical hinge [7 ]; the outer shell (2) and the inner sleeve (9) are connected by rubber.
2. The high-load magnetorheological fluid-elastic three-way vibration damper according to claim 1, wherein the outer shell (2) and the inner sleeve (9) are both designed into a hollow truncated cone shape with an inclined angle at the upper part and a cylindrical structure at the lower part.
3. A high load magnetorheological fluid-elastic three-way vibration damping device according to claim 1, wherein the inner housing [9] and the lower part of the outer housing [2] are dimensioned according to the dimensions of the piston [8] and the damping channel [12] and wherein the outer housing [2] and the inner housing [9] are concentrically arranged to ensure maximum relative displacement of the outer housing [2] and the inner housing [9 ].
4. The high-load magnetorheological fluid-elastic three-way vibration damper according to claim 1, wherein the rubber between the outer shell (2) and the inner sleeve (9) is integrally prepared.
5. A high load magnetorheological-elastic three-way damping device according to claim 1, wherein the piston rod (1) and the piston rod cap (4) are made of a titanium alloy.
6. A high load magnetorheological fluid-elastic three-way vibration damping device according to claim 1, wherein the piston (8) and the inner sleeve (9) are made of magnetically conductive material.
7. A high load magnetorheological fluid-elastic three-way vibration damping device according to claim 1, wherein the outer shell [2], the reinforcing plate [3], the transition seat [5], the upper cover [6] and the liquid injection end cover [10] are made of 45 steel.
8. A high load magnetorheological-elastic three-way vibration damping device according to claim 1, wherein the housing [2] is connected to an engine mount [13], the engine mount [13] is connected to and supports an engine, the transition seat [5] is located above the carrier [14] and is connected to the carrier [14], and the reinforcement plate [3] is placed between the transition seat [5] and the engine mount [13 ].
9. The high-load magnetorheological fluid-elastic three-way damping device according to claim 1, wherein a shell [2] of the high-load magnetorheological fluid-elastic three-way damping device is sleeved and arranged on an engine bracket [13] from the lower part, the upper parts of the two engine brackets [13] are connected with an engine [15], and the lower part of the high-load magnetorheological fluid-elastic three-way damping device is connected with a carrier [14] through a transition seat [5 ]; when the engine [15] and the carrier [14] generate relative motion, the piston [8] and the inner sleeve [9], the inner sleeve [9] and the shell [2] generate relative displacement, the magnetorheological fluid damper and the high-load elastic body damper generate damping force and elastic force at the same time, and the damping force of the magnetorheological fluid damper is changed by adjusting the exciting current of the exciting coil [11 ].
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114776753A (en) * | 2022-03-11 | 2022-07-22 | 嘉兴学院 | Rotary linear vibration damping magnetorheological fluid damper |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114776753A (en) * | 2022-03-11 | 2022-07-22 | 嘉兴学院 | Rotary linear vibration damping magnetorheological fluid damper |
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| Publication number | Publication date |
|---|---|
| CN113803399B (en) | 2022-11-01 |
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