CN109296684A - A kind of 3 D electromagnetic vibration isolator based on the design of bidirectional displacement enlarging function - Google Patents

A kind of 3 D electromagnetic vibration isolator based on the design of bidirectional displacement enlarging function Download PDF

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Publication number
CN109296684A
CN109296684A CN201811430394.9A CN201811430394A CN109296684A CN 109296684 A CN109296684 A CN 109296684A CN 201811430394 A CN201811430394 A CN 201811430394A CN 109296684 A CN109296684 A CN 109296684A
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electromagnetic
hourglass shape
rhombus
permanent magnet
vibration isolator
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CN109296684B (en
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罗亚军
高星
张英琦
张雪
屈远东
冀琳玮
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Xi an Jiaotong University
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Xi an Jiaotong University
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F6/00Magnetic springs; Fluid magnetic springs, i.e. magnetic spring combined with a fluid
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F2222/00Special physical effects, e.g. nature of damping effects
    • F16F2222/06Magnetic or electromagnetic

Abstract

The invention discloses a kind of 3 D electromagnetic vibration isolators based on the design of bidirectional displacement enlarging function, including the parts such as hourglass shape mechanism and rhombus-mechanism, electromagnetic mechanism, sensor and fastener;Wherein hourglass shape mechanism and rhombus-mechanism are mutually perpendicular to be distributed, and four identical electromagnetic mechanisms are respectively distributed on the intermediate plate of Liang Zhong mechanism;Wherein electromagnetic mechanism is divided into permanent magnet part and solenoid part;Sensor arrangement is in intermediate interdigitated part;Entire vibration isolator can be bolted in required vibration isolation environment;The present invention is by the Negative poisson's ratio that has using hourglass shape mechanism, the positive effects of Poisson's ratio that rhombus-mechanism has, and two kinds of structures constitute complementary displacement equations effect along two opposite driving directions;Meanwhile electromagnetic mechanism have the characteristics that it is bigger apart from smaller electromagnetic force.And the three-dimensional structure modeling of distribution is mutually perpendicular to by hourglass shape mechanism and rhombus-mechanism, traditional displacement amplifying mechanism is eliminated in the bad mode in non-actuation direction.

Description

A kind of 3 D electromagnetic vibration isolator based on the design of bidirectional displacement enlarging function
Technical field
The invention belongs to vibration control technology fields, relate generally to a kind of electromagnetism vibration isolator, and specifically one kind is based on The 3 D electromagnetic vibration isolator of bidirectional displacement enlarging function design.
Background technique
Requirement with new technology, the development of new material and people to vibration control is continuously improved, and vibration isolation technique also obtains Continuous development.Traditional electromagnetism, hydraulic and pneumatic actuator in engineering by being widely applied while, intelligence structure with The continuous maturation of technology and technique, be also gradually applied in the fields such as aerospace.Since spacecraft is in space It is difficult to supplement air or liquid, certain difficulty is brought to the use of pneumatically or hydraulically actuator.And electric energy can then pass through Solar energy sailboard supply of long duration, thus be used as power it is big, fast response time, do not influence system stiffness and the biggish electromagnetism of effective travel Actuator is often used as the vibration control technology design of space structure, before very important researching value and wide application Scape.
In recent years, electromagnetic actuator will be used wider and wider in active vibration isolation.It is common such as voice coil motor type electricity Magnetic actuator is based on electromagnetic induction principle, changes the anti-vibration performance of vibration isolator by changing electric current.In addition, such as patent application Number 103511529 A of CN discloses a kind of electromagnetism vibration isolator of adjustable rigidity.We are number of patent application CN previous A kind of hourglass shape electromagnetism vibration isolator is disclosed in 107606018 A.Since traditional electromagnetism vibration isolator needs additional springs to reach Certain support stiffness, and biggish electric current is needed to provide electromagnetic force, to increase use cost.Hourglass shape electromagnetism vibration isolation Although device uses displacement equations effect, have the advantages that reduce control electric current, we have found in-depth study, hourglass shape electricity Magnetic vibration isolator can only carry out efficient vibration isolation in single direction, cannot vibration reciprocating direction can adequately using electromagnetism to away from The actuation feature bigger from smaller electromagnetic force, and easily there is the bad low frequency modal of non-actuation direction (double swerve), it still needs to It makes improvements.
Summary of the invention
In order to overcome the above-mentioned deficiencies of the prior art, the present invention by using hourglass shape mechanism have Negative poisson's ratio, Rhombus-mechanism has positive effects of Poisson's ratio, and two kinds of structures constitute complementary displacement equations effect along two opposite driving directions Fruit.Electromagnetic mechanism has the characteristics that bigger apart from smaller electromagnetic force simultaneously, and in conjunction with These characteristics, it is two-way to propose that one kind may be implemented Displacement equations effect 3 D electromagnetic vibration isolator;And the three-dimensional of distribution is mutually perpendicular to by hourglass shape mechanism and rhombus-mechanism and is tied Structure design eliminates traditional displacement amplifying mechanism in the bad mode in non-actuation direction, and holding first-order modal is vertical motion;Tool There is bidirectional high-efficiency vibration isolation, rigidity is adjustable, and compact-sized, the strong reaction speed of designability is fast, easily controllable feature;It is intended for The vibration isolation of structure.
To achieve the goals above, the present invention adopts the following technical scheme:
A kind of 3 D electromagnetic vibration isolator based on the design of bidirectional displacement enlarging function, including rhombus-mechanism 1, hourglass shape mechanism 2, electromagnetic mechanism, sensor and fastener;The hourglass shape mechanism 2 and rhombus-mechanism 1 are integrated overall structure and mutually hang down Straight distribution, hourglass shape mechanism 2 and rhombus-mechanism 1 increase by 13 joint of flexible hinge, reduce unnecessary deformation, hourglass shape mechanism 2 And rhombus-mechanism 1 is fixed between vibration source and basis by the first fixing bolt group 3 and the second fixing bolt group 4 respectively;It is described Rhombus-mechanism 1 include two side by side and spaced first diamond shaped assembly 1-1 and the second diamond shaped assembly 1-2, the first diamond shape group The first electromagnetic mechanism 5 and the second electromagnetic mechanism 6 is respectively set between part 1-1 and the second diamond shaped assembly 1-2 opposite intermediate plate;It is described Hourglass shape mechanism 2 includes two the first hourglass shape component 2-1 arranged side by side and the second hourglass shape component 2-2, the first hourglass shape Third electromagnetic mechanism 7 and the 4th electromagnetic mechanism 8 is respectively set between component 2-1 and the second hourglass shape component 2-2 opposite intermediate plate; First electromagnetic mechanism 5, the second electromagnetic mechanism 6, third electromagnetic mechanism 7 are identical with the structure of the 4th electromagnetic mechanism 8, include Permanent magnet part 9 and solenoid part 10, wherein permanent magnet part 9 is cuboid Nd-Fe-B permanent magnet, and gluing is in diamond shaped assembly Or on an intermediate plate of hourglass shape component, solenoid part 10 includes coil rack and the electromagnetic wire being wrapped on coil rack Circle, gluing is on another opposite intermediate plate of diamond shaped assembly or hourglass shape component;Permanent magnet part 9 and solenoid part 10 Between there are air gaps;Cross section of the sensor arrangement in rhombus-mechanism 1 and hourglass shape mechanism 2, including Hall element 11 With the small permanent magnet 12 that 11 opposite of Hall element is arranged in;It further include the electric current for controlling electromagnetic coil in solenoid part 10 The controller of size and Orientation.
The rhombus-mechanism 1 and hourglass shape mechanism 2 use non-magnetic aluminum alloy materials, provide support for entire vibration isolator Rigidity reaches specific operating condition by the angle of the key parameter and rhombus-mechanism 1 and hourglass shape mechanism 2 that design flexible hinge 13 and wants It asks;The hourglass shape mechanism 2 has a Negative poisson's ratio, and rhombus-mechanism 1 has a positive effects of Poisson's ratio, and Liang Zhong mechanism is along opposite Two driving directions constitute complementary displacement equations effect;In addition, the three dimensional design being mutually perpendicular, eliminates traditional bit Move the bad mode of enlarger.
Flexible hinge 13 in the rhombus-mechanism 1 and hourglass shape mechanism 2 is designed as galianconism beam flexible hinge, key parameter For the length and thickness of flexible hinge, it acts as: so that deformation concentrates on flexible hinge sections, other parts are hardly happened Deformation.
The center line of the permanent magnet part 9 and solenoid part 10 should be aligned, and water chestnut is fixed on by way of gluing On the intermediate plate of shape component or hourglass shape component, wherein the coil rack of solenoid part 10 is ABS plastic, and electromagnetic coil is copper Enameled wire;The first electromagnetic mechanism 5 and the second electromagnetism when upward displacement, that is, tensional state integrally occurs, in rhombus-mechanism 1 The permanent magnet part 9 of mechanism 6 and 10 intermediate distance of solenoid part are closer, when integrally occurring to the i.e. compressive state of bottom offset, 10 medium spacing of permanent magnet part 9 and solenoid part of third electromagnetic mechanism 7 and the 4th electromagnetic mechanism 8 in hourglass shape mechanism 2 From closer, to realize the anti-vibration performance of bidirectional high-efficiency.
The small permanent magnet 12, gluing provide a magnetic on an intermediate plate of diamond shaped assembly or hourglass shape component , Hall element is located at the opposite of small permanent magnet, and gluing is in opposite another of diamond shaped assembly or hourglass shape component Between on plate;When mechanism kinematic, the distance between Hall element 11 and small permanent magnet 12 change, to pass through Hall member Part 11 measures the variable quantity of magnetic induction intensity, to from which further follow that the movement-state of vibration isolator, is determined by controller The size of current of electromagnetic coil and direction in electromagnetic mechanism provide electromagnetic force and are negative, is i.e. attraction when for tensional state, this When 1 intermediate distance of rhombus-mechanism it is closer;When compressive state, electromagnetic force is provided and is positive, is i.e. repulsive force, at this time in hourglass shape mechanism 2 Between distance it is closer, to control entire electromagnetism vibration isolator.
The controller in the input signal of solenoid current, the first electromagnetic mechanism 5 and the second electromagnetic mechanism 6 Two solenoid controlled current signals are consistent, two solenoid controlleds in third electromagnetic mechanism 7 and the 4th electromagnetic mechanism 8 Electric current is consistent, to guarantee the controllability of mechanism.
Compared to the prior art compared with, the present invention has the advantages that
1. the vibration isolator has displacement equations effect, when upper due to rhombus-mechanism and hourglass shape mechanism distinctive property When lower panel compression or tension, the distance between permanent magnet and electromagnet can be made closer, thus with bidirectional high-efficiency Anti-vibration performance.
2. since traditional electromagnetism vibration isolator needs additional spring to provide support stiffness, and vibration isolator of the present invention is put Great institutions itself can provide support stiffness, compare, and structure is simple, and stability is more preferable.
3. the vibration isolator three dimensional design vertical by rhombus-mechanism and hourglass shape mechanism, eliminates traditional enlarger Bad mode in non-actuation direction, and design flexible hinge and reduce unnecessary deformation.
4. vibration isolator described in directly uses Hall element as sensor, has the advantages that sensor bulk is small, is not required to The advantages of wanting additional sensor.
5. the vibration isolator has rigidity adjustable, transient response is fast, compact-sized, small in size, and integrated level is high, is easily installed The advantages of.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.Fig. 2 is structure front view of the invention.Fig. 3 is structure left view of the invention Figure.Fig. 4 is structure top view of the invention.Fig. 5 is control circuit frame diagram of the invention.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with attached drawing to the present invention make into The detailed description of one step, as shown in Fig. 1~5, the present invention is by providing a kind of solid designed based on bidirectional displacement enlarging function Electromagnetism vibration isolator, using the had displacement equations effect of structure, when upper and lower panel is pressurized or when tension, can make permanent magnet and The distance between electromagnet is closer, thus the anti-vibration performance with bidirectional high-efficiency.
Fig. 1 is the structural diagram of the present invention, a kind of 3 D electromagnetic based on the design of bidirectional displacement enlarging function of the present invention Vibration isolator, including rhombus-mechanism 1, hourglass shape mechanism 2, electromagnetic mechanism, sensor and fastener;The hourglass shape mechanism 2 and water chestnut Integrated overall structure is in shape mechanism 1 and is mutually perpendicular to be distributed, and hourglass shape mechanism 2 and rhombus-mechanism 1 increase flexible hinge 13 and close Section, reduces unnecessary deformation, and hourglass shape mechanism 2 and rhombus-mechanism 1 pass through the first fixing bolt group 3 and the second fixed spiral shell respectively Bolt group 4 is fixed between vibration source and basis;The rhombus-mechanism 1 include two side by side and spaced first diamond shaped assembly 1- 1 and second is respectively set first between the opposite intermediate plate of diamond shaped assembly 1-2, the first diamond shaped assembly 1-1 and the second diamond shaped assembly 1-2 Electromagnetic mechanism 5 and the second electromagnetic mechanism 6;The hourglass shape mechanism 2 include two the first hourglass shape component 2-1 arranged side by side and It is respectively set between second hourglass shape component 2-2, the first hourglass shape component 2-1 and the second hourglass shape component 2-2 opposite intermediate plate Third electromagnetic mechanism 7 and the 4th electromagnetic mechanism 8;First electromagnetic mechanism 5, the second electromagnetic mechanism 6,7 and of third electromagnetic mechanism The structure of 4th electromagnetic mechanism 8 is identical, includes permanent magnet part 9 and solenoid part 10, wherein permanent magnet part 9 is rectangular Body Nd-Fe-B permanent magnet, for gluing on an intermediate plate of diamond shaped assembly or hourglass shape component, solenoid part 10 includes coil Skeleton and the electromagnetic coil being wrapped on coil rack, gluing is among opposite another of diamond shaped assembly or hourglass shape component On plate;There are air gaps between permanent magnet part 9 and solenoid part 10;The sensor arrangement is in rhombus-mechanism 1 and hourglass shape The cross section of mechanism 2, including Hall element 11 and the small permanent magnet 12 that 11 opposite of Hall element is arranged in;It further include control The size of current of electromagnetic coil and the controller in direction in solenoid part 10 processed.
Front view and side view show electromagnetic mechanism distribution and sensor distribution to Fig. 2 and Fig. 3 respectively.Hourglass shape mechanism 1 Non-magnetic aluminum alloy materials are used with rhombus-mechanism 2, support stiffness is provided for entire vibration isolator, the pass of flexible hinge can be designed Bond parameter and rhombus-mechanism 1 and the angle of hourglass shape mechanism 2 etc. calculate intrinsic frequency, reach specific working condition requirement.The two phase Mutually vertical three dimensional design can be very good the bad mode for eliminating conventional bridge displacement equations, first-order modal made vertically to shake It is dynamic.In Liang Zhong mechanism, flexible hinge 13 is designed as galianconism beam flexible hinge, and key parameter is the length and thickness of flexible hinge, It acts as: so that deformation concentrates on flexible hinge sections, other parts hardly happen deformation.
When installing electromagnetic mechanism, the center line of permanent magnet part 9 and solenoid part 10 should be aligned, and pass through gluing Mode is fixed on intermediate plate, and wherein coil rack is ABS plastic, and coil is copper enameled wire, when the upward displacement of integrally generation When, 10 medium spacing of permanent magnet part 9 and solenoid part of the first electromagnetic mechanism 5 and the second electromagnetic mechanism 6 in rhombus-mechanism 1 From closer, when integrally occurring to bottom offset, the permanent magnetism of third electromagnetic mechanism 7 and the 4th electromagnetic mechanism 8 in hourglass shape mechanism 2 Iron part 9 and 10 intermediate distance of solenoid part are closer, to realize the anti-vibration performance of bidirectional high-efficiency.
Electric operation control circuit figure as shown in Figure 5, Hall element 11 obtains the variable quantity of magnetic induction intensity by measurement, into one Step obtains the movement-state of vibration isolator, and the size and Orientation of solenoid current in electromagnetic mechanism is determined by controller, To control entire mechanism.Using Bang-bang control algolithm, when being specifically described as tensional state, electromagnetic force is provided It is negative, i.e. attraction, rhombus-mechanism intermediate distance is closer at this time;When compressive state, electromagnetic force is provided and is positive, is i.e. repulsive force, this When hourglass shape mechanism intermediate distance it is closer, to achieve the purpose that bidirectional high-efficiency vibration isolation.

Claims (6)

1. a kind of 3 D electromagnetic vibration isolator based on the design of bidirectional displacement enlarging function, it is characterised in that: including rhombus-mechanism (1), hourglass shape mechanism (2), electromagnetic mechanism, sensor and fastener;The hourglass shape mechanism (2) and rhombus-mechanism (1) are one It body overall structure and is mutually perpendicular to be distributed, hourglass shape mechanism (2) and rhombus-mechanism (1) increase flexible hinge (13) joint, subtract Few unnecessary deformation, hourglass shape mechanism (2) and rhombus-mechanism (1) are fixed by the first fixing bolt group (3) and second respectively Bolt group (4) is fixed between vibration source and basis;The rhombus-mechanism (1) include two side by side and spaced first diamond shape Component (1-1) and the second diamond shaped assembly (1-2), the first diamond shaped assembly (1-1) and the opposite intermediate plate of the second diamond shaped assembly (1-2) Between the first electromagnetic mechanism (5) and the second electromagnetic mechanism (6) is respectively set;The hourglass shape mechanism (2) includes two and is arranged side by side The first hourglass shape component (2-1) and the second hourglass shape component (2-2), the first hourglass shape component (2-1) and the second hourglass shape group Third electromagnetic mechanism (7) and the 4th electromagnetic mechanism (8) is respectively set between the opposite intermediate plate of part (2-2);First electromagnetic motor Structure (5), the second electromagnetic mechanism (6), third electromagnetic mechanism (7) are identical with the structure of the 4th electromagnetic mechanism (8), include permanent magnet Partially (9) and solenoid part (10), wherein permanent magnet part (9) are cuboid Nd-Fe-B permanent magnet, and gluing is in diamond shaped assembly Or on an intermediate plate of hourglass shape component, solenoid part (10) includes coil rack and the electromagnetism that is wrapped on coil rack Coil, gluing is on another opposite intermediate plate of diamond shaped assembly or hourglass shape component;Permanent magnet part (9) and electromagnet portion There are air gaps between point (10);The sensor arrangement rhombus-mechanism (1) and hourglass shape mechanism (2) cross section, including Hall element (11) and setting Hall element (11) opposite small permanent magnet (12);It further include control solenoid part (10) controller of the size of current of electromagnetic coil and direction in.
2. a kind of 3 D electromagnetic vibration isolator based on the design of bidirectional displacement enlarging function according to claim 1, feature Be: the rhombus-mechanism (1) and hourglass shape mechanism (2) use non-magnetic aluminum alloy materials, provide branch for entire vibration isolator Rigidity is supportted, tool is reached by the angle of the key parameter of design flexible hinge (13) and rhombus-mechanism (1) and hourglass shape mechanism (2) Body working condition requirement;The hourglass shape mechanism (2) have Negative poisson's ratio, rhombus-mechanism (1) have positive effects of Poisson's ratio, two kinds Mechanism constitutes complementary displacement equations effect along two opposite driving directions;In addition, the three-dimensional being mutually perpendicular is set Meter eliminates the bad mode of traditional displacement amplifying mechanism.
3. a kind of 3 D electromagnetic vibration isolator based on the design of bidirectional displacement enlarging function according to claim 1 or 2, special Sign is: the flexible hinge (13) in the rhombus-mechanism (1) and hourglass shape mechanism (2) is designed as galianconism beam flexible hinge, closes Bond parameter is the length and thickness of flexible hinge, it acts as: so that deformation concentrates on flexible hinge sections, other parts are almost It does not deform.
4. a kind of 3 D electromagnetic vibration isolator based on the design of bidirectional displacement enlarging function according to claim 1, feature Be: the center line of the permanent magnet part (9) and solenoid part (10) should be aligned, and water chestnut is fixed on by way of gluing On the intermediate plate of shape component or hourglass shape component, wherein the coil rack of solenoid part (10) is ABS plastic, and electromagnetic coil is Copper enameled wire;When upward displacement, that is, tensional state integrally occurs, the first electromagnetic mechanism (5) in rhombus-mechanism (1) and the The permanent magnet part (9) of two electromagnetic mechanisms (6) and solenoid part (10) intermediate distance are closer, occur to bottom offset i.e. when integrally When compressive state, the permanent magnet part (9) of third electromagnetic mechanism (7) and the 4th electromagnetic mechanism (8) in hourglass shape mechanism (2) and Solenoid part (10) intermediate distance is closer, to realize the anti-vibration performance of bidirectional high-efficiency.
5. a kind of 3 D electromagnetic vibration isolator based on the design of bidirectional displacement enlarging function according to claim 1, feature Be: the small permanent magnet (12), gluing provide a magnetic on an intermediate plate of diamond shaped assembly or hourglass shape component , Hall element is located at the opposite of small permanent magnet, and gluing is in opposite another of diamond shaped assembly or hourglass shape component Between on plate;When mechanism kinematic, the distance between Hall element (11) and small permanent magnet (12) change, thus by suddenly The variable quantity that your element (11) measures magnetic induction intensity passes through controller to from which further follow that the movement-state of vibration isolator It determines the size of current of electromagnetic coil and direction in electromagnetic mechanism, when for tensional state, electromagnetic force is provided and is negative, that is, is attracted Power, rhombus-mechanism (1) intermediate distance is closer at this time;When compressive state, electromagnetic force is provided and is positive, is i.e. repulsive force, at this time hourglass shape Mechanism (2) intermediate distance is closer, to control entire electromagnetism vibration isolator.
6. a kind of 3 D electromagnetic vibration isolator based on the design of bidirectional displacement enlarging function according to claim 1, feature Be: the controller is in the input signal of solenoid current, the first electromagnetic mechanism (5) and the second electromagnetic mechanism (6) Two solenoid controlled current signals it is consistent, two electromagnetic wires in third electromagnetic mechanism (7) and the 4th electromagnetic mechanism (8) Circle control electric current is consistent, to guarantee the controllability of mechanism.
CN201811430394.9A 2018-11-28 2018-11-28 A kind of 3 D electromagnetic vibration isolator based on the design of bidirectional displacement enlarging function Active CN109296684B (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204326290U (en) * 2014-11-24 2015-05-13 沈阳建筑大学 A kind of hourglass shape mild steel barred body sinker
CN205190614U (en) * 2015-12-10 2016-04-27 诸暨市康宇弹簧有限公司 Hourglass shape rubber spring
CN107606018A (en) * 2017-10-19 2018-01-19 西安交通大学 A kind of hourglass shape electromagnetism vibration isolator
CN108144829A (en) * 2017-12-01 2018-06-12 西安交通大学 A kind of controllable direct stress electromagnetic vibration platform of rigidity and control method
CN108216662A (en) * 2018-01-10 2018-06-29 合肥工业大学 A kind of vibration isolator and the isolation mounting using the vibration isolator
CN108317207A (en) * 2018-04-13 2018-07-24 西安科技大学 The MR elastomer vibration isolator of the multi-direction vibration control of vertical-horizontal can be achieved

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204326290U (en) * 2014-11-24 2015-05-13 沈阳建筑大学 A kind of hourglass shape mild steel barred body sinker
CN205190614U (en) * 2015-12-10 2016-04-27 诸暨市康宇弹簧有限公司 Hourglass shape rubber spring
CN107606018A (en) * 2017-10-19 2018-01-19 西安交通大学 A kind of hourglass shape electromagnetism vibration isolator
CN108144829A (en) * 2017-12-01 2018-06-12 西安交通大学 A kind of controllable direct stress electromagnetic vibration platform of rigidity and control method
CN108216662A (en) * 2018-01-10 2018-06-29 合肥工业大学 A kind of vibration isolator and the isolation mounting using the vibration isolator
CN108317207A (en) * 2018-04-13 2018-07-24 西安科技大学 The MR elastomer vibration isolator of the multi-direction vibration control of vertical-horizontal can be achieved

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