CN108458021A - A kind of nonlinear elasticity vibration absorber based under the conditions of large deformation - Google Patents
A kind of nonlinear elasticity vibration absorber based under the conditions of large deformation Download PDFInfo
- Publication number
- CN108458021A CN108458021A CN201810193945.8A CN201810193945A CN108458021A CN 108458021 A CN108458021 A CN 108458021A CN 201810193945 A CN201810193945 A CN 201810193945A CN 108458021 A CN108458021 A CN 108458021A
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- China
- Prior art keywords
- disc spring
- conditions
- large deformation
- vibration absorber
- compression bar
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Classifications
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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
- F16F7/00—Vibration-dampers; Shock-absorbers
-
- 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
- F16F2228/00—Functional characteristics, e.g. variability, frequency-dependence
- F16F2228/06—Stiffness
Abstract
The invention discloses a kind of nonlinear elasticity vibration absorbers based under the conditions of large deformation, including：Pedestal (4), disc spring (3), lever mechanism, top braces body (1)；Wherein, disc spring (3) is connect with pedestal (4)；Lever mechanism includes：Fixed seat (5), positioning pin (6), compression bar (2)；Fixed seat (5) is fixedly connected with pedestal (4), and fixed seat (5) periphery is equipped with multiple circular holes；Compression bar (2) is in zigzag, upper horizontal segment is fixed with top braces body (1), lower horizontal segment is connect across circular hole with fixed seat (5) by positioning pin (6), is contacted with disc spring (3) in the middle part of compression bar (2)；Apparatus structure simple and compact, certain section can realize that the deflection of device is continuously increased in the case of keeping external load constant among vibration damping process.
Description
Technical field
The present invention relates to mechanical engineering fields, and in particular, to a kind of nonlinear elasticity based under the conditions of large deformation subtracts
Vibrating device.
Background technology
With the raising to damping element effectiveness in vibration suppression in engineer application, it is desirable that vibration absorber is while meeting large deformation
Piecewise nonlinear rigidity must be provided, and a certain section of achievable external load in vibration damping process centre is constant, deflection increased zero
Stiffness characteristics.Existing damping element is in the presence of that can only provide rigidity of fixation, i.e., as the external load device linear displacement that becomes larger increases
Big problem, can not achieve that external load is constant and the increased zero stiffness characteristic of displacement.
Invention content
The present invention provides a kind of nonlinear elasticity vibration absorber based under the conditions of large deformation, device can efficiently solve
Meet in Practical Project outside non-linear rigidity is provided under the conditions of large deformation and ensureing that the centre section of the course of work provides
When load is constant, the problem of deflection ever-increasing zero stiffness characteristic, the apparatus structure simple and compact, among vibration damping process
In the case that certain section can realize that holding external load is constant, the deflection of device is continuously increased.
The purpose of the present invention is achieved through the following technical solutions：A kind of nonlinear elasticity based under the conditions of large deformation
Property vibration absorber is made of pedestal, disc spring, lever mechanism, top braces body.Disc spring realizes that positioning connects by connecting pin and pedestal
It connects；Lever mechanism bottom is fixed on pedestal, is lever in the compression bar and disc spring toe contact of " claw type " distribution in lever mechanism
Offer acts on fulcrum and active force is transferred to disc spring, is fixed by fixing bolt and top braces body at the top of compression bar.The thick stick
Deformation displacement is amplified by the lever ratio of control compression bar and power is transferred to disc spring by linkage, so that disc spring is generated corresponding
Zero stiffness characteristic stress and deformation.
The pedestal is stepped cylindrical, and upper cylinder is with certain thickness hollow cylinder structure, lateral surface uniformly distributed six
A connecting pin mounting hole, lower cylinder middle part set screw-threaded counterbore, realize the connection with lever mechanism fixed seat.
The disc spring is the cone thin walled shell with certain lateral thickness, no top and bottom plane.
The top braces body is in column structure, and installation and plane of constraint are provided for elastic vibration clamper.
The lever mechanism is made of fixed seat, positioning pin, compression bar.Hole is opened in the middle part of fixed seat, by fastening bolt with
Pedestal is fixed, and fixed seat periphery sets the circular hole there are six circumference uniform distribution；Compression bar is in " Z " word-lifting formula, and upper horizontal segment passes through bolt
It is fixed with top braces body, lower horizontal segment is connect by positioning pin with fixed seat, with disc spring toe contact in the middle part of compression bar, passes through control
Compression bar processed and fixed seat installation point to disc spring toe contact point spacing and contact point to top braces body fixed point spacing
Ratio realize axial displacement deflection amplification and act on disc spring small end load control.
The present invention operation principle be：According to the requirement of vibration absorber stiffness characteristics, the thick stick of compression bar in control lever mechanism
Bar ratio, in the case where external load is certain, compression bar and disc spring stress generate large deformation displacement in lever mechanism, big to reach
The requirement of deformation；Using disc spring small end section a certain between deflection loaded there are the relationship of zero stiffness characteristic, realize
External load is constant in the vibration absorber course of work, the increased zero stiffness characteristic of deflection.
One or more technical solution provided by the present application, has at least the following technical effects or advantages：
Nonlinear elasticity vibration damping under the conditions of large deformation can be achieved in the present invention, and ensures outside the offer of elastic damping section
Load is constant, the increased zero stiffness characteristic of deflection.
All components of the present invention are mechanical structure, and functional reliability is high, simple and compact for structure, production cost is low.
Description of the drawings
Attached drawing described herein is used for providing further understanding the embodiment of the present invention, constitutes one of the application
Point, do not constitute the restriction to the embodiment of the present invention；
Fig. 1 is stereochemical structure partial schematic sectional view of the present invention；
Fig. 2 is lever mechanism dimensional structure diagram of the present invention；
Fig. 3 is lever mechanism overlooking structure diagram of the present invention；
Fig. 4 is disc spring schematic cross-sectional view of the present invention；
Fig. 5 is connecting pin structural schematic diagram of the present invention.
Specific implementation mode
The present invention provides a kind of nonlinear elasticity vibration absorber based under the conditions of large deformation, device can efficiently solve
Meet in Practical Project outside non-linear rigidity is provided under the conditions of large deformation and ensureing that the centre section of the course of work provides
When load is constant, the problem of deflection ever-increasing zero stiffness characteristic, the apparatus structure simple and compact, among vibration damping process
In the case that certain section can realize that holding external load is constant, the deflection of device is continuously increased.
To better understand the objects, features and advantages of the present invention, below in conjunction with the accompanying drawings and specific real
Mode is applied the present invention is further described in detail.It should be noted that in the case where not conflicting mutually, the application's
Feature in embodiment and embodiment can be combined with each other.
Many details are elaborated in the following description to facilitate a thorough understanding of the present invention, still, the present invention may be used also
Implemented with being different from the other modes being described herein in range using other, therefore, protection scope of the present invention is not by under
The limitation of specific embodiment disclosed in face.
Please refer to Fig.1-Fig. 5, a kind of nonlinear elasticity vibration absorber based under the conditions of large deformation by pedestal 4, disc spring 3,
Lever mechanism, top braces body 1 form.Disc spring 3 is located by connecting by connecting pin 7 and the realization of pedestal 4；Lever mechanism bottom is fixed
In on pedestal 4, in the compression bar 2 and 3 toe contact of disc spring of " claw type " distribution in lever mechanism, for lever provide effect fulcrum and by
Active force is transferred to disc spring, and 2 top of compression bar is fixed by fixing bolt and top braces body 1.
The pedestal 4 is stepped cylindrical, and upper cylinder is with certain thickness hollow cylinder structure, lateral surface uniformly distributed six
7 mounting hole of a connecting pin, lower cylinder middle part set screw-threaded counterbore, realize the connection with lever mechanism fixed seat 5.
The disc spring 3 is the cone thin walled shell with certain lateral thickness, no top and bottom plane.
The top braces body 1 is in column structure, and installation and plane of constraint are provided for elastic vibration clamper.
The lever mechanism is made of fixed seat 5, positioning pin 6, compression bar 2.Hole is opened at 5 middle part of fixed seat, by fastening spiral shell
Bolt is fixed with pedestal 4, and 5 periphery of fixed seat sets the circular hole there are six circumference uniform distribution；Compression bar 2 is in " Z " word-lifting formula, and upper horizontal segment is logical
It crosses bolt to fix with top braces body 1, lower horizontal segment is connect by positioning pin 6 with fixed seat 5,2 middle part of compression bar and 3 segment of disc spring
Contact, by controlling compression bar 2 and 5 installation point of fixed seat to the spacing and contact point of 3 toe contact point of disc spring to top braces
The ratio of the fixed point spacing of body 1 realizes the ratio enlargement of axial displacement deflection and the control loaded of 3 small end of disc spring.
According to the requirement of vibration absorber stiffness characteristics, the lever ratio of compression bar 2, certain in external load in control lever mechanism
In the case of, compression bar 2 and 3 stress of disc spring generate large deformation displacement in lever mechanism, to reach the requirement of large deformation；Utilize dish
3 small end of spring section a certain between deflection loaded there are the relationship of zero stiffness characteristic, realize the vibration absorber course of work
Middle external load is constant, the increased zero stiffness characteristic of deflection.
Although preferred embodiments of the present invention have been described, it is created once a person skilled in the art knows basic
Property concept, then additional changes and modifications may be made to these embodiments.So it includes excellent that the following claims are intended to be interpreted as
It selects embodiment and falls into all change and modification of the scope of the invention.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in the art
God and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to include these modifications and variations.
Claims (7)
1. a kind of nonlinear elasticity vibration absorber based under the conditions of large deformation, described device include：Pedestal (4), disc spring (3),
Lever mechanism, top braces body (1)；Wherein, disc spring (3) is connect with pedestal (4)；Lever mechanism includes：Fixed seat (5), positioning
Sell (6), compression bar (2)；Fixed seat (5) is fixedly connected with pedestal (4), and fixed seat (5) periphery is equipped with multiple circular holes；Compression bar (2) is in Z
Font, upper horizontal segment is fixed with top braces body (1), and lower horizontal segment passes through circular hole to connect with fixed seat (5) by positioning pin (6)
It connects, is contacted with disc spring (3) in the middle part of compression bar (2).
2. the nonlinear elasticity vibration absorber according to claim 1 based under the conditions of large deformation, which is characterized in that fixed
Hole is opened in the middle part of seat (5), is fixedly connected with pedestal (4) by fastening bolt.
3. the nonlinear elasticity vibration absorber according to claim 1 based under the conditions of large deformation, which is characterized in that disc spring
(3) it is connect with pedestal (4) by connecting pin (7).
4. the nonlinear elasticity vibration absorber according to claim 1 based under the conditions of large deformation, which is characterized in that fixed
Seat (5) periphery sets the circular hole there are six circumference uniform distribution；Horizontal segment is fixed by bolt and top braces body (1) on compression bar (2).
5. the nonlinear elasticity vibration absorber according to claim 1 based under the conditions of large deformation, which is characterized in that compression bar
(2) with disc spring (3) toe contact.
6. the nonlinear elasticity vibration absorber according to claim 1 based under the conditions of large deformation, which is characterized in that described
Disc spring (3) is the cone shell with certain lateral thickness.
7. the nonlinear elasticity vibration absorber according to claim 1 based under the conditions of large deformation, which is characterized in that described
Top braces body is in column structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810193945.8A CN108458021B (en) | 2018-03-09 | 2018-03-09 | Nonlinear elastic vibration damper based on large deformation condition |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810193945.8A CN108458021B (en) | 2018-03-09 | 2018-03-09 | Nonlinear elastic vibration damper based on large deformation condition |
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| Publication Number | Publication Date |
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| CN108458021A true CN108458021A (en) | 2018-08-28 |
| CN108458021B CN108458021B (en) | 2023-05-09 |
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| CN201810193945.8A Active CN108458021B (en) | 2018-03-09 | 2018-03-09 | Nonlinear elastic vibration damper based on large deformation condition |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110539842A (en) * | 2019-09-19 | 2019-12-06 | 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） | Non-linear elastic vibration reduction bed plate |
| CN113790239A (en) * | 2021-10-20 | 2021-12-14 | 湖南大学 | Flexible ultralow frequency vibration isolator |
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| JP2002048192A (en) * | 2000-08-03 | 2002-02-15 | Ohbayashi Corp | Vibration damper article and installation method of vibration damper article |
| CN103398139A (en) * | 2013-08-01 | 2013-11-20 | 湖南大学 | Dish-shaped rubber quasi-zero stiffness vibration isolator |
| CN203362993U (en) * | 2013-05-02 | 2013-12-25 | 中国人民解放军军事医学科学院卫生装备研究所 | Single degree-of-freedom vertical vibration isolation system having quasi zero stiffness |
| JP2016118214A (en) * | 2014-12-18 | 2016-06-30 | 三菱電機株式会社 | Vibration control device and refrigeration cycle device using the same |
| CN206571892U (en) * | 2017-03-22 | 2017-10-20 | 江苏蓝潮海洋风电工程建设有限公司 | A kind of heavily loaded load balance apparatus |
| CN207921201U (en) * | 2018-03-09 | 2018-09-28 | 成都博仕腾科技有限公司 | A kind of nonlinear elasticity vibration-proof structure based under the conditions of large deformation |
-
2018
- 2018-03-09 CN CN201810193945.8A patent/CN108458021B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002048192A (en) * | 2000-08-03 | 2002-02-15 | Ohbayashi Corp | Vibration damper article and installation method of vibration damper article |
| CN203362993U (en) * | 2013-05-02 | 2013-12-25 | 中国人民解放军军事医学科学院卫生装备研究所 | Single degree-of-freedom vertical vibration isolation system having quasi zero stiffness |
| CN103398139A (en) * | 2013-08-01 | 2013-11-20 | 湖南大学 | Dish-shaped rubber quasi-zero stiffness vibration isolator |
| JP2016118214A (en) * | 2014-12-18 | 2016-06-30 | 三菱電機株式会社 | Vibration control device and refrigeration cycle device using the same |
| CN206571892U (en) * | 2017-03-22 | 2017-10-20 | 江苏蓝潮海洋风电工程建设有限公司 | A kind of heavily loaded load balance apparatus |
| CN207921201U (en) * | 2018-03-09 | 2018-09-28 | 成都博仕腾科技有限公司 | A kind of nonlinear elasticity vibration-proof structure based under the conditions of large deformation |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110539842A (en) * | 2019-09-19 | 2019-12-06 | 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） | Non-linear elastic vibration reduction bed plate |
| CN110539842B (en) * | 2019-09-19 | 2020-11-10 | 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） | Non-linear elastic vibration reduction bed plate |
| CN113790239A (en) * | 2021-10-20 | 2021-12-14 | 湖南大学 | Flexible ultralow frequency vibration isolator |
| CN113790239B (en) * | 2021-10-20 | 2024-04-16 | 湖南大学 | Flexible ultralow frequency vibration isolator |
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| CN108458021B (en) | 2023-05-09 |
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