CN105972147A - Quasi zero stiffness vibration isolation platform adjustable in positive and negative stiffness - Google Patents
Quasi zero stiffness vibration isolation platform adjustable in positive and negative stiffness Download PDFInfo
- Publication number
- CN105972147A CN105972147A CN201610545508.9A CN201610545508A CN105972147A CN 105972147 A CN105972147 A CN 105972147A CN 201610545508 A CN201610545508 A CN 201610545508A CN 105972147 A CN105972147 A CN 105972147A
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- stiffness
- hanger bracket
- vibroshock
- vibration
- pillar
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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
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
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- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- Vibration Prevention Devices (AREA)
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Abstract
The invention discloses a quasi zero stiffness vibration isolation platform adjustable in positive and negative stiffness. The quasi zero stiffness vibration isolation platform adjustable in positive and negative stiffness comprises a movable platform body, a suspension assembly, a shock absorber and an adjusting assembly; the shock absorber is connected with the movable platform body; and the adjusting assembly is connected with the suspension assembly and the shock absorber and is used for adjusting the initial position of the shock absorber. According to the quasi zero stiffness vibration isolation platform adjustable in positive and negative stiffness, the stiffness can be easily and conveniently adjusted, and the quasi zero stiffness vibration isolation platform adjustable in positive and negative stiffness is suitable for broad-frequency domain vibration isolation and has good engineering adaptability; while high bearing stiffness is achieved, low movement stiffness is achieved, the static deformation amount is small, the dynamic inherent frequency is low, and the vibration isolation effect is good; and by means of flexible adjustment of stiffness an damping, and the inherent conflict, namely the conflict of the low-frequency vibration transmissibility and the high-frequency vibration attenuation ratio, restricting a traditional isolation vibration system can be avoided.
Description
Technical field
The invention belongs to absorber technical field, specifically, the present invention relates to a kind of positive negative stiffness adjustable
Quasi-zero stiffness vibration-isolating platform.
Background technology
High precision machine tool and precision instrument and equipment, high-grade research laboratory's equipment, missile transporter vehicle etc.,
Vibration-isolating platform is proposed higher performance requirement, at Structural Engineering and mechanical engineering field, is the most all seeking
Seek the vibration-isolating platform that a kind of performance more highlights.
Summary of the invention
The present invention provides one to have both higher static rigidity and relatively low dynamic rate, and quasi-zero stiffness can be realized can
The quasi-zero stiffness vibration-isolating platform of the wide frequency domain vibration isolation adjusted.
To achieve these goals, the technical scheme that the present invention takes is: the positive adjustable quasi-zero stiffness of negative stiffness
Vibration-isolating platform, including:
Moving platform；
Suspension assembly；
Vibroshock, it is connected with moving platform；And
Adjusting part, it is connected with suspension assembly and vibroshock, and is used for regulating the initial position of vibroshock.
Described adjusting part include with described suspension assembly be the first adjusting rod threadeded and with first regulation
Bar is threaded and relatively can make the second adjusting rod of linear reciprocating motion by suspension assembly, the second adjusting rod with
Described vibroshock is for being rotationally connected.
It is threaded with described suspension assembly and described second adjusting rod respectively that described first adjusting rod has
Two sections of external screw threads, two sections externally threaded oppositely oriented.
Described suspension assembly includes the first hanger bracket and the second hanger bracket being oppositely arranged and being connected, and first hangs
Set by being equipped with on hanger and the second hanger bracket on described adjusting part, the first hanger bracket and the second hanger bracket
Adjusting part is connected with described moving platform by described vibroshock.
Described vibroshock is circumferentially distributed multiple in the inner side of described suspension assembly, and at two adjacent vibration dampings
In device, one of them vibroshock is connected with the described adjusting part arranged on described first hanger bracket, another
Vibroshock is connected with the described adjusting part arranged on described second hanger bracket.
Described vibroshock line centered by the axis of described moving platform is evenly distributed around moving platform.
Described first hanger bracket has the first pillar, and described second hanger bracket has and aligns with the first shore position
The second pillar, the first pillar and the second pillar are connected by middle connector.
Described first pillar and described second pillar, have in middle connector for threadeding with described middle connector
There is the screwed hole allowing the first pillar and the second pillar screw in.
Described first hanger bracket and described second hanger bracket are hexagonal structure.
The adjustable quasi-zero stiffness vibration-isolating platform of positive negative stiffness of the present invention, has the advantage that
1, this vibration-isolating platform not only solves conventional linear vibrating isolation system isolation low frequency or difficulty during superlow frequency vibrating
Topic, it is to avoid use actively and semi-active control vibration isolator structure is complicated, manufacturing cost highly energy-consuming is high shortcoming；
2, this vibration-isolating platform is in certain deformation range, using the three of upper end shock-absorbing springs as positive stiffness elements
It is only used as negative stiffness shock-absorbing spring element in parallel with the three of lower end, this vibration-isolating platform can be realized in its equilbrium position
Neighbouring non-linear rigidity；
3, this vibration-isolating platform can by adjusting part regulation vibroshock initial position, realize wide frequency domain every
Shake, can be widely applied to the precision instrument strict to vibration isolation requirement and equipment, there is good engineering practicability.
4, while this vibration-isolating platform has higher support stiffness, also there is the lowest motion rigidity, static
Deflection is little, the vibration isolating effect that dynamic natural frequency is low.
Accompanying drawing explanation
This specification includes the following drawings, shown content respectively:
Fig. 1 is the structural representation of vibration-isolating platform of the present invention；
Fig. 2 is the structural representation of the first hanger bracket；
Fig. 3 is the structural representation of the second hanger bracket；
Fig. 4 is the structural representation of suspension assembly；
Fig. 5 is the structural representation of vibrating isolation system；
Fig. 6 is the structural representation of moving platform；
Fig. 7 is the sectional view of adjusting part；
Figure is labeled as:
1, middle connector；2, vibroshock；21, pin-and-hole；22, shock-absorbing spring；3, moving platform；31, hold
Support plate；32, pedestal；33, hinge；34, pin-and-hole；35, bolt；4, the first hanger bracket；41, first
Pillar；42, studs；43, V-arrangement connector；44, guide holder；5, the second hanger bracket；51,
Two pillars；52, studs；53, V-arrangement connector；54, guide holder；6, adjusting part；61,
One adjusting rod；62, the second adjusting rod；63, hinge；7, bearing pin；
Detailed description of the invention
Below against accompanying drawing, by the description to embodiment, the detailed description of the invention of the present invention is made further
Detailed description, it is therefore an objective to help those skilled in the art to have completeer to design, the technical scheme of the present invention
Whole, accurate and deep understanding, and contribute to its enforcement.
As shown in Figures 1 to 7, the invention provides a kind of positive adjustable quasi-zero stiffness vibration-isolating platform of negative stiffness,
Including moving platform 3, suspension assembly, vibroshock and adjusting part 6, vibroshock is to be connected with moving platform 3, adjusts
Joint assembly 6 is to be connected with suspension assembly and vibroshock, and for regulating the initial position of vibroshock.The present invention
The adjustable quasi-zero stiffness vibration-isolating platform of positive negative stiffness, certain structural parameters are set, can realize this vibration isolation put down
Platform can realize the non-linear rigidity near quasi-zero stiffness and equilbrium position in equilbrium position, can solve conventional linear
Difficult problem when vibrating isolation system isolation low frequency or superlow frequency vibrating；Rigidity can easy regulate, it is adaptable to wide frequency domain every
Shake, there is good engineering adaptability；While there is higher support stiffness, also there is the lowest motion
Rigidity, static deformation amount is little, and dynamic natural frequency is low, and vibration isolating effect is good；By rigidity, damping flexible
Regulation, it is possible to resolve the intrinsic contradictions of restriction tradition vibrating isolation system, i.e. low-frequency vibration transport declines with dither
The contradiction of lapse rate.The vibration-isolating platform using positive and negative Stiffness that the present invention proposes is a kind of new vibration damping and vibration isolation
Platform, has good economy and practicality, can promote every field.
Specifically, as it is shown in figure 1, one end of vibroshock is rotationally connected with moving platform 3, the other end and tune
Joint assembly 6 is rotationally connected, and vibroshock two ends are rotationally connected that axis a little is parallel and axis with moving platform 3
Perpendicular.The centrage of vibroshock and vibroshock two ends are rotationally connected axis perpendicular a little, adjusting part 6
It is for the initial angle regulating between the centrage of vibroshock and horizontal plane, i.e. changes the initial bit of vibroshock
Put, thus change the initial pretightning force of the shock-absorbing spring having on vibroshock.
As shown in Figure 1 and Figure 4, suspension assembly includes the first hanger bracket 4 and being oppositely arranged and being connected
Two hanger brackets 5, the first hanger bracket 4 and the second hanger bracket 5 are equipped with adjusting part 6, the first hanger bracket 4
It is connected with moving platform 3 by vibroshock with adjusting part 6 set on the second hanger bracket 5.First hanger bracket 4
Be connected with the second hanger bracket 5 and form the suspension assembly of a kind of frame structure, inner chamber be used for accommodating vibroshock and
Moving platform 3.First hanger bracket 4 and the second hanger bracket 5 are realized even by the middle connector 1 being positioned between the two
Connecing, form integrative-structure, as preferably, middle connector 1 is in edge, the outside of vibroshock and moving platform 3 week
Multiple to arranging, improve the first hanger bracket 4 and the second hanger bracket 5 connection reliability.
As shown in Figure 1 and Figure 7, as preferably, adjusting part 6 includes with suspension assembly for threadeding
The first adjusting rod 61 and with the first adjusting rod 61 for threaded and reciprocating linear can be done by relative suspension assembly
Second adjusting rod 62 of motion, the first adjusting rod 61 makes the second adjusting rod 62 along its length for generation
Doing the driving force of linear reciprocating motion, the second adjusting rod 62 is also played guide effect by suspension assembly, it is ensured that the
Two adjusting rods 62 move along a straight line.Vibroshock one end hanger is rotationally connected with moving platform 3, the hanger of the other end
Being rotationally connected with the end of the second adjusting rod 62, it is parallel and with that vibroshock two ends are rotationally connected axis a little
The direction of motion of two adjusting rods 62 is perpendicular.When needing the initial position regulating vibroshock, by rotating the
One adjusting rod 61, makes the second adjusting rod 62 move along a straight line, and the second adjusting rod 62 can compress or stretch and subtract
Shake device, and the angle between length direction and the centrage of vibroshock of the second adjusting rod 62 is regulated, thus
The initial pretightning force of shock-absorbing spring can be changed.
As shown in Figure 1 and Figure 7, the outer surface of the first adjusting rod 61 have respectively with suspension assembly and second adjust
Pole 62 is threaded two section external screw threads, and these two sections externally threaded oppositely oriented, accordingly in the second regulation
The inside of bar 62 is provided with the internal thread hole allowing the first adjusting rod 61 insert.Vibroshock be positioned at adjusting part 6 with
Between moving platform 3, when adjusting part 6 regulates vibroshock stretching, the first adjusting rod 61 and the second adjusting rod
62 is the direction motion being directed away from moving platform 3；When adjusting part 6 regulates shock absorbers compression, first adjusts
Pole 61 and the second adjusting rod 62 are to move towards the direction close to moving platform 3.
As preferably, as it is shown in figure 1, vibroshock is uniformly distributed circumferentially multiple in the inner side of suspension assembly,
And in two adjacent vibroshocks, the adjusting part 6 that one of them vibroshock and the first hanger bracket 4 are arranged
The second adjusting rod 62 be rotationally connected, on another vibroshock and the second hanger bracket 5 arrange adjusting part 6
The second adjusting rod 62 be rotationally connected, i.e. the quantity of vibroshock is equal with the quantity of adjusting part 6, each vibration damping
Device is connected with an adjusting part 6 respectively, and arranges equal number on the first hanger bracket 4 and the second hanger bracket 5
The adjusting part 6 of amount, adjusting part 6 on the first hanger bracket 4 and the second hanger bracket 5 for being staggeredly arranged.
When state shown in Fig. 1, vibroshock centered by the axis of moving platform 3 line around moving platform 3 in uniformly
Distribution, the adjusting part 6 on the first hanger bracket 4 and the second hanger bracket 5 is also to be with the axis of moving platform 3
Centrage is evenly distributed around moving platform 3.In the present embodiment, as it is shown in figure 1, vibroshock sets altogether
Put six, the first hanger bracket 4 and the second hanger bracket 5 are respectively provided with three adjusting parts 6.
As shown in Figure 4 and Figure 5, one end of vibroshock is by set by the end of bearing pin and the second adjusting rod 62
Hinge 63 is rotationally connected, and the other end is rotationally connected by the hinge 33 that bearing pin is set with on moving platform 3.Dynamic
Platform 3 includes loading plate 31 and is fixedly installed on the pedestal 32 at loading plate 31 bottom center, pedestal 32
In the center of all vibroshocks, hinge 33 is circumferentially evenly arranged multiple on pedestal 32, each hinge 33
It is connected with a vibroshock respectively.
As shown in Figure 1 and Figure 4, the first hanger bracket 4 and the second hanger bracket 5 are all by multiple studs, V
The guide holder of shape connector and arrowhead form is formed by connecting and is inner hollow, circumferentially closed hexagonal structure.
Concrete, as in figure 2 it is shown, the studs 42 of the first hanger bracket 4 is positioned at guide holder 44 and V-arrangement
Between connector 43, studs 42 is threadeds with guide holder 44 and V-arrangement connector 43, double
The two ends outer surface of header stud 42 is respectively provided with one section of external screw thread, and the two ends of studs 42 are externally threaded
Oppositely oriented, it is provided with in guide holder 44 and V-arrangement connector 43 accordingly and allows the thread head of studs 42
The internal thread hole screwed in.The angle of V-arrangement connector 43 is preferably 120 degree, the two ends of V-arrangement connector 43
It is respectively provided with an internal thread hole, in the angle between the axis of two internal thread holes is 120 degree, and two
The thread rotary orientation of screwed hole is contrary, is respectively used to be connected with a studs 42.The guide holder of arrowhead form
44 have three ends, wherein relative to two ends be respectively provided with an internal thread hole, the two female thread
Angle between the axis in hole is also 120 degree, and the thread rotary orientation of two internal thread holes is contrary, is respectively used to
It is connected with a studs 42.In the present embodiment, the guide holder 44 of the first hanger bracket 4, studs
42 and V-arrangement connector 43 be respectively provided with three, threaded with guide holder 44 in each studs 42 one end,
The other end is threadeded with V-arrangement connector 43, forms orthohexagonal first hanger bracket 4.
As it is shown on figure 3, the structure of the second hanger bracket 5 is substantially similar with the structure of the first hanger bracket 4, second
The studs 52 of hanger bracket 5 between guide holder 54 and V-arrangement connector 53, the knot of guide holder 54
Structure is identical with the structure of guide holder 44, and the structure of studs 52 is identical with the structure of studs 42, V
The structure of shape connector 53 is identical with the structure of V-arrangement connector 43.Studs 52 and guide holder 54 and
V-arrangement connector 53 is threaded, and the two ends outer surface of studs 52 is respectively provided with one section of external screw thread,
And the two ends of studs 52 are externally threaded oppositely oriented, accordingly in guide holder 54 and V-arrangement connector 53
It is provided with the internal thread hole allowing the thread head of studs 52 screw in.The angle of V-arrangement connector 53 is preferably
120 degree, the two ends of V-arrangement connector 53 are respectively provided with an internal thread hole, the axis of two internal thread holes it
Between angle be 120 degree, and the thread rotary orientation of two internal thread holes is contrary, is respectively used to and a double end spiral shell
Post 52 connects.The guide holder 54 of arrowhead form has three ends, wherein relative to two ends have respectively
Having an internal thread hole, the angle between the axis of the two internal thread hole is also 120 degree, and two interior spiral shells
The thread rotary orientation of pit is contrary, is respectively used to be connected with a studs 52.In the present embodiment, second
The guide holder 54 of hanger bracket 5, studs 52 and V-arrangement connector 53 are respectively provided with three, each double end spiral shell
Threadeding with guide holder 54 in post 52 one end, the other end is threadeded with V-arrangement connector 53, forms positive six
Second hanger bracket 5 of limit shape.
As in figure 2 it is shown, the first hanger bracket 4 also includes the first pillar 41 being vertically installed on each guide holder 44,
The axis of the length direction of this first pillar 41 and the internal thread hole of the first adjusting rod 61 and guide holder 44 hangs down mutually
Directly, the first pillar 41 for stretch out at the second hanger bracket 5 position.In the present embodiment, guide
Seat 44 arranges three, then the first pillar 41 is also provided with parallel three, three the first pillars 41 be equal
Even distribution.As it is shown on figure 3, the second hanger bracket 5 also includes being vertically installed on each guide holder 54 and with first
Second pillar 51 of pillar 41 aligned in position, the length direction of this second pillar 51 and the first adjusting rod 61 and
The axis perpendicular of the internal thread hole of guide holder 54, the second pillar 51 be towards the first hanger bracket 4 place
Position is stretched out.In the present embodiment, guide holder 54 arranges three, then the second pillar 51 is also provided with equal
Three of row, three the second pillars 51 for being uniformly distributed.As shown in Figure 1 and Figure 4, the first pillar 41
Connected by middle connector 1 with the second pillar 51, the first pillar 41 and the second pillar 51 and with middle connector
1 is threaded, has the screwed hole allowing the first pillar 41 and the second pillar 51 insert in middle connector 1,
Threaded easy disassembly.
As it is shown in fig. 7, adjusting part 6 is arranged on guide holder 44,54, guide holder 44,54 has three
Individual bar portion, wherein relative to two bar portions in be respectively provided with an internal thread hole being connected with studs, position
Being provided with one with the first adjusting rod 61 in the 3rd bar portion in the middle of the two bar portion is the interior spiral shell threadeded
Pit and a pilot hole allowing the second adjusting rod 62 insert, pilot hole connects with internal thread hole, it is ensured that first
Adjusting rod 61 can import in pilot hole and be connected with the second adjusting rod 62.Pilot hole is to the second adjusting rod 62
To guide effect, the second adjusting rod 62 does linear reciprocating motion, second adjusting rod 62 one end in pilot hole
Inserting in pilot hole, the other end stretches out pilot hole and is positioned at the first hanger bracket 4 or inside of the second hanger bracket 5,
Hinge 63 is arranged on the external part of the second adjusting rod 62.First adjusting rod 61 a part insert guide holder 44,
54 is internal, and another part is positioned at outside guide holder 44,54.
The major advantage of the first hanger bracket of said structure, the second hanger bracket, suspension assembly design is embodied in: 1)
Facilitate the regulation of whole vibration-isolating platform, dismounting, regulation can make the size of this platform vibration isolation object, weight model
Enclosing expansion, dismounting can make platform be moved easily flexibly, it is simple to transport；2) the structure design of whole platform, can
To produce series of products easily, it is simple to this console module, producing in serial form.
The following detailed description of how realizing the quasi-zero stiffness of vibration-isolating platform, concretely comprise the following steps:
Step 1: first calculate moving platform 3 and reached shock-absorbing spring (non-thread during equipoise by extraneous exciting force
Property spring) 22 deformation quantity.
Step 2: the shape of shock-absorbing spring (nonlinear spring) 22 when reaching equipoise according to put object
Variable thus the vibroshock pre compressed magnitude that is connected with the adjusting part 6 being arranged on the first hanger bracket 4 of regulation make
The pretightning force of this vibroshock points to lower spring end lid along vibroshock.This vibroshock when moving platform 3 moves downward
On shock-absorbing spring 22 will produce positive rigidity.
Step 3: regulate the vibration damping bullet of the vibroshock being connected with the adjusting part 6 being arranged on the second hanger bracket 5
The deformation quantity of spring (nonlinear spring) 22, thus regulate this vibroshock pre compressed magnitude and make the pretightning force of vibroshock
Lower end is pointed to along vibroshock.When moving platform 3 moves downward, the shock-absorbing spring 22 on this vibroshock will produce
Negative stiffness.
Positive rigidity that the vibroshock that is connected with the adjusting part 6 being arranged on the first hanger bracket 4 produces and with set
The negative stiffness that the vibroshock that the adjusting part 6 being placed on the second hanger bracket 5 connects produces just numerically is added
The global stiffness that can realize whole vibration insulating system is zero, thus realizes the adjustable quasi-zero stiffness vibration isolation of positive negative stiffness and put down
Platform.
Above in association with accompanying drawing, the present invention is exemplarily described.Obviously, the present invention implements and is not subject to
The restriction of aforesaid way.As long as the various non-solid that the method design that have employed the present invention is carried out with technical scheme
The improvement of matter；Or the most improved, above-mentioned design and the technical scheme of the present invention are directly applied to other
Close, all within protection scope of the present invention.
Claims (9)
1. the positive adjustable quasi-zero stiffness vibration-isolating platform of negative stiffness, it is characterised in that including:
Moving platform；
Suspension assembly；
Vibroshock, it is connected with moving platform；And
Adjusting part, it is connected with suspension assembly and vibroshock, and is used for regulating the initial position of vibroshock.
The adjustable quasi-zero stiffness vibration-isolating platform of positive negative stiffness the most according to claim 1, it is characterised in that
Described adjusting part includes with described suspension assembly to be the first adjusting rod threadeded and with the first adjusting rod is
Threaded and relatively can make the second adjusting rod of linear reciprocating motion by suspension assembly, the second adjusting rod is with described
Vibroshock is for being rotationally connected.
The adjustable quasi-zero stiffness vibration-isolating platform of positive negative stiffness the most according to claim 2, it is characterised in that
It is two sections threadeded with described suspension assembly and described second adjusting rod respectively that described first adjusting rod has
External screw thread, two sections externally threaded oppositely oriented.
The adjustable quasi-zero stiffness vibration-isolating platform of positive negative stiffness the most according to claim 1, it is characterised in that
Described suspension assembly includes the first hanger bracket and the second hanger bracket being oppositely arranged and being connected, the first hanger bracket
Be equipped with on described adjusting part, the first hanger bracket and the second hanger bracket set regulation on the second hanger bracket
Assembly is connected with described moving platform by described vibroshock.
The adjustable quasi-zero stiffness vibration-isolating platform of positive negative stiffness the most according to claim 4, it is characterised in that
Described vibroshock is circumferentially distributed multiple in the inner side of described suspension assembly, and in two adjacent vibroshocks,
One of them vibroshock is connected with the described adjusting part arranged on described first hanger bracket, another vibroshock
It is connected with the described adjusting part arranged on described second hanger bracket.
The adjustable quasi-zero stiffness vibration-isolating platform of positive negative stiffness the most according to claim 5, it is characterised in that
Described vibroshock line centered by the axis of described moving platform is evenly distributed around moving platform.
The adjustable quasi-zero stiffness vibration-isolating platform of positive negative stiffness the most according to claim 4, it is characterised in that
Described first hanger bracket has the first pillar, and described second hanger bracket has alignd with the first shore position
Two pillars, the first pillar and the second pillar are connected by middle connector.
The adjustable quasi-zero stiffness vibration-isolating platform of positive negative stiffness the most according to claim 7, it is characterised in that
Described first pillar and described second pillar for threadeding with described middle connector, have in middle connector and allow
The screwed hole that first pillar and the second pillar screw in.
9. according to the adjustable quasi-zero stiffness vibration-isolating platform of the positive negative stiffness described in claim 1 to 8, its feature
Being, described first hanger bracket and described second hanger bracket are hexagonal structure.
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| CN201610545508.9A CN105972147B (en) | 2016-07-12 | 2016-07-12 | The adjustable quasi- zero stiffness vibration-isolating platform of positive negative stiffness |
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| CN201610545508.9A CN105972147B (en) | 2016-07-12 | 2016-07-12 | The adjustable quasi- zero stiffness vibration-isolating platform of positive negative stiffness |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107218343A (en) * | 2017-06-06 | 2017-09-29 | 上海卫星工程研究所 | Quasi-zero stiffness vibration isolators based on asymmetric compound material laminate |
| CN108757799A (en) * | 2018-08-31 | 2018-11-06 | 天津航天机电设备研究所 | A kind of quasi- zero stiffness isolation mounting of flexibility |
| CN108791743A (en) * | 2018-07-03 | 2018-11-13 | 中国船舶科学研究中心（中国船舶重工集团公司第七0二研究所） | Quasi- zero stiffness formula, which subtracts, shakes water tank |
| CN108799405A (en) * | 2018-06-28 | 2018-11-13 | 天津航天机电设备研究所 | A kind of zero stiffness isolation mounting of irrotational displacement |
| CN110168249A (en) * | 2017-01-12 | 2019-08-23 | Hrl实验室有限责任公司 | Adjustable negative stiffness system |
| CN110513432A (en) * | 2019-09-03 | 2019-11-29 | 武汉理工大学 | A kind of double nonlinear isolation devices |
| CN112298766A (en) * | 2020-09-25 | 2021-02-02 | 无锡莫莫电子有限公司 | Portable communication transmission equipment |
| CN112377549A (en) * | 2020-11-03 | 2021-02-19 | 同济大学 | Multi-direction quasi-zero rigidity vibration isolation platform |
| CN114251410A (en) * | 2021-11-18 | 2022-03-29 | 上海航天控制技术研究所 | Semi-active vibration reduction platform structure of inertia actuating mechanism based on magneto-rheological damper |
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