CN108131421A - A kind of elastic ring squeeze film damper with special-shaped aperture - Google Patents
A kind of elastic ring squeeze film damper with special-shaped aperture Download PDFInfo
- Publication number
- CN108131421A CN108131421A CN201711441982.8A CN201711441982A CN108131421A CN 108131421 A CN108131421 A CN 108131421A CN 201711441982 A CN201711441982 A CN 201711441982A CN 108131421 A CN108131421 A CN 108131421A
- Authority
- CN
- China
- Prior art keywords
- elastic ring
- damper
- special
- ring
- squeeze film
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 241001455226 Sauria Species 0.000 claims description 8
- 239000011148 porous material Substances 0.000 abstract description 6
- 238000005461 lubrication Methods 0.000 abstract description 2
- 238000005457 optimization Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 11
- 238000013016 damping Methods 0.000 description 3
- 230000007704 transition Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000006399 behavior Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
Classifications
-
- 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
- F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
- F16F15/16—Suppression of vibrations in rotating systems by making use of members moving with the system using a fluid or pasty material
- F16F15/161—Suppression of vibrations in rotating systems by making use of members moving with the system using a fluid or pasty material characterised by the fluid damping devices, e.g. passages, orifices
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- Support Of The Bearing (AREA)
Abstract
The present invention relates to a kind of film dampers, more particularly to a kind of elastic ring squeeze film damper with special-shaped aperture, including damper outer shroud, elastic ring and damper inner ring, elastic ring is between damper inner ring and damper outer shroud, elastic ring is equipped with special-shaped circulation aperture, and the surfaces externally and internally of elastic ring is equipped with the boss being interspersed；The width of boss is 2nd/1st/50th to 50 of entire elastic ring arc length；The end bottom of damper inner ring and elastic ring is provided with semicircle orifice, and semicircle orifice is used for the relative rotation by the limitation of rotation stop positioning bolt therebetween.Elastic ring structure with special-shaped pore structure and distribution by increasing through-flow aperture in elastic ring surface, can be effectively improved the lubrication state of oil film in damper, so as to improve the stability of elastic ring squeeze film damper work；Pass and small pore size distribution by optimization design can be effectively increased throttle, so as to improve the performance of damper.
Description
Technical field：
The present invention relates to a kind of film dampers, and in particular to a kind of elastic circular squeeze film damping with special-shaped aperture
Device.
Background technology：
Since six the seventies of twentieth century, as Aeronautics and Astronautics and ship's powerplant energy density, specific power increasingly carry
Height, rotor-support-foundation system need to stablize, reliably work at higher rotational speeds, thus to the stability and reliability of rotor-support-foundation system
Propose higher requirement.Squeeze film damper can significantly reduce vibration amplitude of the rotor when excessively critical so that high
The rotating machinery of speed operation can be steadily quickly by critical and reach its working speed, in gas turbine and aeroplane engine
It has a wide range of applications on machine.Traditional squeeze film damper is larger and by the transient impact compared with big load in quiet bias
When embody it is stronger non-linear so that there are the non-linear behaviors such as bistable state, non-coordinating precession in system, so as to the system of endangering
Stable operation.The elastic circular structure of special designing is added in conventional damper so that damper has certain Self-aligning
Ability so as to effectively improve the non-linear of conventional damper, improves the stability of rotor-support-foundation system so that film damper
More it is widely applied.
Invention content：
The object of the present invention is to provide a kind of elastic ring squeeze film damper with special-shaped pore structure, the course of work is hit by a bullet
Property ring be suitable for the vibration of rotor corresponding deformation occur, absorb vibrational energy so as to strengthen its shock proof ability, improve damping
The stability of device；In addition there are rubbing actions between elastic ring and damper inner and outer rings, can improve the damping and amortization of damper
Energy.
The technical solution adopted by the present invention is：A kind of elastic ring squeeze film damper with special-shaped aperture, including
Damper outer shroud, elastic ring and damper inner ring, the elastic ring is between damper inner ring and damper outer shroud, elastic ring
Special-shaped circulation aperture is equipped with, the surfaces externally and internally of elastic ring is equipped with the boss being interspersed；Outside damper inner ring and damper
Ring is the tubular structure with greater stiffness.
Further, the pass of the special-shaped circulation aperture is flaring type, shrinkage type, plain edition or scaling type.
Further, the special-shaped circulation aperture in the surface distribution form of elastic ring be single-orifice type, axial diapsid, week
To diapsid or quadrifora.
Further, the width of the boss is 2nd/1st/50th to 50 of entire elastic ring arc length.
Further, the quantity of the elastic ring convex platform is 6 to 18.
Further, the height of the boss is 0.2 millimeter to 0.5 millimeter.
Further, the end bottom of the damper inner ring and elastic ring is provided with semicircle orifice, and semicircle orifice is used for by only
Turn the relative rotation of positioning bolt limitation therebetween.
Beneficial effects of the present invention：Elastic ring structure with special-shaped pore structure and distribution, by increasing in elastic ring surface
Add through-flow aperture, the lubrication state of oil film in damper can be effectively improved, so as to improve elastic ring squeeze film damper
The stability of work；On the other hand, throttle can be effectively increased by the pass of optimization design and small pore size distribution, so as to
Improve the performance of damper.The gas turbines related fields such as industry, naval vessel and aerospace are can be applied to, can also be applied to simultaneously
High-speed rotating machine field with particular/special requirement, including military affairs, the energy, electric power, traffic, environmental protection etc..
Elastic ring is the tubular structure that interior outer lug boss is interspersed, between damper inner and outer ring, inner convex platform and resistance
The inner surface of the outer surface cooperation of Buddhist nun's device inner ring, outer lug boss and outer race coordinates；Elastic ring surface has the small of special designing
Pore structure；Through-hole can be plain edition or gradual shrinkage or flaring type on elastic ring, and pass parameters are according to the work of damper
It is designed as parameter；In single oil film section, the aperture on elastic ring is generally 1-4, and the distribution of the aperture of multiple quantity can
To be uniform or heterogeneous；Elastic ring inner convex platform is coordinated with ring outer surface cooperation in damper using transition, bullet
Property the outer ring inner surface of ring outer lug boss and damper be clearance fit；The middle section of damper inner ring, damper outer shroud and elastic ring
Bottom opens up circular hole, and the relative rotation between three is limited by rotation stop positioning screw.
Description of the drawings：
Fig. 1 is the structure diagram of the present invention；
Fig. 2 is the partial enlarged view of A in Fig. 1；
Fig. 3 is the structure diagram of elastic ring in the present invention；
Fig. 4 is the structure diagram of damper inner ring in the present invention；
Fig. 5 is the structure diagram of flaring type opposite sex circulation aperture in embodiment two；
Fig. 6 is the structure diagram of shrinkage type opposite sex circulation aperture in embodiment two；
Fig. 7 is the structure diagram of plain edition opposite sex circulation aperture in embodiment two；
Fig. 8 is the structure diagram of scaling type opposite sex circulation aperture in embodiment two；
Fig. 9 is that opposite sex circulation aperture is in single-orifice type distribution schematic diagram in embodiment three；
Figure 10 is that opposite sex circulation aperture is in axial diapsid distribution schematic diagram in embodiment three；
Figure 11 is that opposite sex circulation aperture is in circumferential diapsid distribution schematic diagram in embodiment three；
Figure 12 is that opposite sex circulation aperture is in quadrifora distribution schematic diagram in embodiment three.
Specific embodiment：
Embodiment one
As shown in Figures 1 to 4, a kind of elastic ring squeeze film damper with special-shaped aperture, including damper outer shroud 1,
Elastic ring 2 and damper inner ring 3, the elastic ring 2 are set between damper inner ring 1 and damper outer shroud 3 on elastic ring 2
There is special-shaped circulation aperture 4, the surfaces externally and internally of elastic ring 2 is equipped with the boss 5 being interspersed；Outside damper inner ring 3 and damper
Ring 1 is the tubular structure with greater stiffness；The quantity of 2 convex platform 5 of elastic ring is 6 to 18；The height of the boss 5
Spend is 0.2 millimeter to 0.5 millimeter；The width of the boss 5 for entire 2 arc length of elastic ring 1/50th to 50/
Two；The end bottom of the damper inner ring 3 and elastic ring 3 is provided with semicircle orifice 6, and semicircle orifice 6 is used for through rotation stop positioning bolt
The relative rotation of limitation therebetween.
Embodiment two
As shown in Fig. 5 to Fig. 8, on the basis of embodiment one, the pass of the special-shaped circulation aperture 4 is flaring type, shrinkage type,
Plain edition or scaling type.
Embodiment three
As shown in Fig. 9 to Figure 12, on the basis of embodiment one, the special-shaped circulation aperture 4 is distributed shape on the surface of elastic ring 2
Formula is single-orifice type, axial diapsid, circumferential diapsid or quadrifora.
Shown damper outer shroud 1 is generally with mouse cage elastic conjunction, and damper inner ring 3 is by flanged joint on bearing block；
Setting circumferential oil supply tank in 3 surface of damper inner ring is simultaneously provided with oil supplying hole；The inner convex platform of elastic ring 2 and the outer ring of damper inner ring 3
Cooperation, outer lug boss and the inner ring of damper outer shroud 1 coordinate；The type of the through-flow aperture 4 of abnormal shape on 2 surface of elastic ring and distribution
It is selected according to design requirement；The inner convex platform of shown elastic ring is identical with outer lug boss number, and at least 4, inner convex platform and evagination
Platform is along the circumferential direction uniformly staggered；Cooperation between shown elastic ring 2 and damper inner ring 3 is coordinated using transition, elasticity
It is gap-matched between ring 2 and damper outer shroud 1.
Claims (7)
1. a kind of elastic ring squeeze film damper with special-shaped aperture, it is characterised in that：Including damper outer shroud（1）、
Elastic ring（2）And damper inner ring（3）, the elastic ring（2）Positioned at damper inner ring（1）With damper outer shroud（3）Between, bullet
Property ring（2）It is equipped with special-shaped circulation aperture（4）, elastic ring（2）Surfaces externally and internally be equipped with the boss that is interspersed（5）.
2. a kind of elastic ring squeeze film damper with special-shaped aperture according to claim 1, it is characterised in that：
The special-shaped circulation aperture（4）Pass be flaring type, shrinkage type, plain edition or scaling type.
3. a kind of elastic ring squeeze film damper with special-shaped aperture according to claim 1, it is characterised in that：
The special-shaped circulation aperture（4）In elastic ring（2）Surface distribution form be single-orifice type, axial diapsid, circumferential diapsid or
Quadrifora.
4. a kind of elastic ring squeeze film damper with special-shaped aperture according to any one of claim 1 to 3,
It is characterized in that：The boss（5）Width be entire elastic ring（2）2nd// 50th to 50 of arc length.
5. a kind of elastic ring squeeze film damper with special-shaped aperture according to any one of claim 1 to 3,
It is characterized in that：The elastic ring（2）Convex platform（5）Quantity be 6 to 18.
6. a kind of elastic ring squeeze film damper with special-shaped aperture according to any one of claim 1 to 3,
It is characterized in that：The boss（5）Height be 0.2 millimeter to 0.5 millimeter.
7. a kind of elastic ring squeeze film damper with special-shaped aperture according to any one of claim 1 to 3,
It is characterized in that：The damper inner ring（3）And elastic ring（3）End bottom be provided with semicircle orifice（6）, semicircle orifice（6）For
Pass through the relative rotation of rotation stop positioning bolt limitation therebetween.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711441982.8A CN108131421A (en) | 2017-12-27 | 2017-12-27 | A kind of elastic ring squeeze film damper with special-shaped aperture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711441982.8A CN108131421A (en) | 2017-12-27 | 2017-12-27 | A kind of elastic ring squeeze film damper with special-shaped aperture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108131421A true CN108131421A (en) | 2018-06-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711441982.8A Pending CN108131421A (en) | 2017-12-27 | 2017-12-27 | A kind of elastic ring squeeze film damper with special-shaped aperture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108131421A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116050193A (en) * | 2023-04-03 | 2023-05-02 | 中国航发四川燃气涡轮研究院 | Damping hole layout method for improving high cycle fatigue life of elastic ring |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060204153A1 (en) * | 2005-03-10 | 2006-09-14 | Honeywell International Inc. | Compact resilient anisotropic support for bearing |
| CN102338158A (en) * | 2011-09-15 | 2012-02-01 | 西安交通大学 | Elastic ring and integral-type elastic ring damper utilizing same |
| CN102888903A (en) * | 2012-10-22 | 2013-01-23 | 株洲时代新材料科技股份有限公司 | Sleeved viscous damper capable of damping variable parameters and design method thereof |
| WO2016022875A2 (en) * | 2014-08-08 | 2016-02-11 | Johnson Controls Technology Company | Rotary screw compressors utilizing viscous damping for vibration reduction |
| CN106286701A (en) * | 2016-10-14 | 2017-01-04 | 西安交通大学 | A kind of elastic circular antivibrator with metal-rubber |
| CN206206489U (en) * | 2016-11-16 | 2017-05-31 | 沈阳航空航天大学 | A kind of resistance increasing type squeeze film damper of outer ring or axle journal with boss |
| CN207661062U (en) * | 2017-12-27 | 2018-07-27 | 哈尔滨广瀚燃气轮机有限公司 | A kind of elastic ring squeeze film damper with special-shaped aperture |
-
2017
- 2017-12-27 CN CN201711441982.8A patent/CN108131421A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060204153A1 (en) * | 2005-03-10 | 2006-09-14 | Honeywell International Inc. | Compact resilient anisotropic support for bearing |
| CN102338158A (en) * | 2011-09-15 | 2012-02-01 | 西安交通大学 | Elastic ring and integral-type elastic ring damper utilizing same |
| CN102888903A (en) * | 2012-10-22 | 2013-01-23 | 株洲时代新材料科技股份有限公司 | Sleeved viscous damper capable of damping variable parameters and design method thereof |
| WO2016022875A2 (en) * | 2014-08-08 | 2016-02-11 | Johnson Controls Technology Company | Rotary screw compressors utilizing viscous damping for vibration reduction |
| CN106286701A (en) * | 2016-10-14 | 2017-01-04 | 西安交通大学 | A kind of elastic circular antivibrator with metal-rubber |
| CN206206489U (en) * | 2016-11-16 | 2017-05-31 | 沈阳航空航天大学 | A kind of resistance increasing type squeeze film damper of outer ring or axle journal with boss |
| CN207661062U (en) * | 2017-12-27 | 2018-07-27 | 哈尔滨广瀚燃气轮机有限公司 | A kind of elastic ring squeeze film damper with special-shaped aperture |
Non-Patent Citations (1)
| Title |
|---|
| 何洪;王世琥;王连群;吉建波;赵玲玲;: "弹性环阻尼器对涡轮增压器转子动力性能影响研究", 车用发动机, no. 04, pages 1 - 6 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116050193A (en) * | 2023-04-03 | 2023-05-02 | 中国航发四川燃气涡轮研究院 | Damping hole layout method for improving high cycle fatigue life of elastic ring |
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Application publication date: 20180608 |