CN108801581A - Wind tunnel force measurement model vibration damping strut based on constrained damping structure - Google Patents
Wind tunnel force measurement model vibration damping strut based on constrained damping structure Download PDFInfo
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- CN108801581A CN108801581A CN201811027609.2A CN201811027609A CN108801581A CN 108801581 A CN108801581 A CN 108801581A CN 201811027609 A CN201811027609 A CN 201811027609A CN 108801581 A CN108801581 A CN 108801581A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M9/00—Aerodynamic testing; Arrangements in or on wind tunnels
- G01M9/02—Wind tunnels
- G01M9/04—Details
Abstract
The present invention provides a kind of wind tunnel force measurement model vibration damping strut based on constrained damping structure, is related to flow tunnel testing device technical field.The strut includes：Strut matrix, strut matrix include balance section, transition construction section and wait straight sections, wait one end of straight sections to be connected with balance section, the other end of straight sections is waited to be connected with transition construction section.Damping layer, damping layer are wrapped in equal straight sections, and one end of damping layer is abutted with balance section, and the other end of damping layer is abutted with transition construction section.Restraint layer, restraint layer are wrapped in damping layer, and one end of restraint layer is abutted with balance section, and the other end of restraint layer is abutted with transition construction section.The peripheral surface of restraint layer is flushed with the peripheral surface of the peripheral surface of balance section, transition construction section.The elasticity modulus of equal straight sections and restraint layer is above the elasticity modulus of damping layer.The strut can be converted by shear-deformable vibrational energy dissipates of damping layer material in vibration processes repeatedly, the Fast Convergent of implementation model vibration.
Description
Technical field
The present invention relates to flow tunnel testing device technical fields, in particular to a kind of wind based on constrained damping structure
Hole dynamometry model vibration damping strut.
Background technology
High-speed wind tunnel dynamometer check generally use tail supporting way.Test model passes through strain balance, strut and knives bending machine
Structure is connected, and forms typical cantilever design.For the limitation of aerodynamic interference, strut is typically designed more elongated；Meanwhile in order to
Balance sensitivity is improved, the balance rigidity of structure is also smaller, and therefore, model supporting system overall stiffness is smaller.
During wind tunnel test, when being encouraged by air-flow, model is easy to happen high vibration phenomenon.Model vibration is asked
Topic not only influences test data precision and experiment envelope curve, it is also possible to cause strut to fracture, and then jeopardize model and wind-tunnel safety.
The method of traditional reply model vibration includes：
1. replacing strut, modification model quality etc. changes support system structural dynamic characteristics.Replace the branch of diameter bigger
Although bar can improve support system rigidity, reduce Oscillation Amplitude, larger support aerodynamic interference can be introduced, causes data accurate
Degree declines；And the method (such as leading block or replacement cast material) for changing model quality vibrates width after not ensuring that modification
Degree declines, and cost and time cycle are all higher.
2. artificial and sensor timely monitor model level of vibration takes the measures such as urgent suspension experiment.Although this method
It solves experiment safety problem, but meeting limit assay condition, test data in complete aircraft envelope curve cannot be obtained.
Requirement with contemporary aircraft to wind tunnel test accurate data degree and experiment envelope curve is higher and higher, domestic and international scientific research
Mechanism begin one's study it is various inhibit model vibration problems methods.Currently, studying more vibration damping mode is mainly based upon piezoelectricity
The active damping controls method of ceramic actuator.But active damping method is there are system complex, development cost is high, is susceptible to and is
The problem of system diverging.
Invention content
The purpose of the present invention is to provide a kind of wind tunnel force measurement model vibration damping strut based on constrained damping structure, can
It is converted by shear-deformable vibrational energy dissipates of damping layer material in vibration processes repeatedly, to greatly improve model
The mechanical damping of support system, the Fast Convergent of implementation model vibration.
What the embodiment of the present invention was realized in：
The embodiment provides a kind of wind tunnel force measurement model vibration damping strut based on constrained damping structure, including：
Strut matrix, the strut matrix include for installing the balance section of strain balance, for installing bent blade mechanism
Transition construction section and wait straight sections, one end of the equal straight sections be connected with the balance section, the other end of the straight sections such as described and
The transition construction section linking；
Damping layer, the damping layer are wrapped in described Deng straight sections, and one end of the damping layer is abutted with the balance section, institute
The other end for stating damping layer is abutted with the transition construction section；
Restraint layer, the restraint layer are wrapped in the damping layer, and one end of the restraint layer is abutted with the balance section, institute
The other end for stating restraint layer is abutted with the transition construction section；
The peripheral surface of the restraint layer is pacified with the balance section close to the peripheral surface of the constraint layer segment, the transition
The peripheral surface close to the constraint layer segment of dress section flushes；
The equal straight sections are above the elasticity modulus of the damping layer with the elasticity modulus of the restraint layer.
In addition, the wind tunnel force measurement model vibration damping strut based on constrained damping structure provided according to an embodiment of the invention,
There can also be following additional technical characteristic：
In the alternative embodiment of the present invention, the damping layer includes damping cavity capsule and elastic damping grain, the damping cavity
There is chamber, the elastic damping grain to be movably placed in the chamber of the damping cavity capsule in intracapsular portion.
In the alternative embodiment of the present invention, the chamber is distributed along the length direction of the damping cavity capsule.
In the alternative embodiment of the present invention, the chamber is circumferentially distributed along the damping cavity capsule.
In the alternative embodiment of the present invention, the chamber is square chamber.
In the alternative embodiment of the present invention, the quantity of the square chamber is multiple, and multiple square chambers are in the resistance
The inner homogeneous of Buddhist nun's chamber capsule is spaced apart.
In the alternative embodiment of the present invention, the elastic damping grain is in spherical.
The present invention alternative embodiment in, between the strut matrix and the damping layer, the damping layer with it is described
It is interference fit between restraint layer.
The present invention alternative embodiment in, between the strut matrix and the damping layer Nian Jie, the described damping layer and
It is bonded between the restraint layer.
In the alternative embodiment of the present invention, the balance section has the first circular conical surface, and one end of the restraint layer has
Second circular conical surface, first circular conical surface agree with and abut with second cone surface shape；
The other end of the restraint layer has third circular conical surface, and the transition construction section has the 4th circular conical surface, described
Third circular conical surface agrees with and abuts with the 4th cone surface shape；
Second circular conical surface is inner conical surface, and the third circular conical surface is male cone (strobilus masculinus).
The beneficial effects of the invention are as follows：
Wind tunnel force measurement model vibration damping strut based on constrained damping structure passes through strut matrix, damping layer and restraint layer
Cooperation can reduce influence of the model supporting system vibration to force test in wind tunnel data, widen experiment packet in passive manner
Line, safety and reliability are all higher.
Description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is the wind tunnel force measurement model vibration damping strut and ring based on constrained damping structure that the embodiment of the present invention 1 provides
The schematic diagram of border element；
Fig. 2 is the axial sectional view of the wind tunnel force measurement model vibration damping strut based on constrained damping structure in Fig. 1；
Fig. 3 is the local section schematic diagram of Fig. 2；
Fig. 4 is the radial partial sectional view of the wind tunnel force measurement model vibration damping strut based on constrained damping structure in Fig. 1；
Fig. 5 is the diameter for the wind tunnel force measurement model vibration damping strut based on constrained damping structure that the embodiment of the present invention 2 provides
To partial sectional view；
Fig. 6 is the axis for the wind tunnel force measurement model vibration damping strut based on constrained damping structure that the embodiment of the present invention 2 provides
To the view profile of sectional view；
Fig. 7 is the axis for the wind tunnel force measurement model vibration damping strut based on constrained damping structure that the embodiment of the present invention 3 provides
To sectional view；
Fig. 8 is the partial enlarged view of the part A of Fig. 7；
Fig. 9 is the partial enlarged view of the part B of Fig. 7.
Icon：Wind tunnel force measurement model vibration damping struts of the 100- based on constrained damping structure；10- strut matrixes；11- balances
Section；The straight sections such as 12-；13- transition construction sections；20- damping layers；30- restraint layers；40- damping cavity capsules；41- square chambers；50- elasticity
Damp grain；The first circular conical surfaces of 61-；The second circular conical surfaces of 62-；63- third circular conical surfaces；The 4th circular conical surfaces of 64-；200- strain balances；
300- bent blade mechanisms.
Specific implementation mode
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.The present invention being usually described and illustrated herein in the accompanying drawings is implemented
The component of example can be arranged and be designed with a variety of different configurations.
Therefore, below the detailed description of the embodiment of the present invention to providing in the accompanying drawings be not intended to limit it is claimed
The scope of the present invention, but be merely representative of the present invention selected embodiment.Based on the embodiments of the present invention, this field is common
The every other embodiment that technical staff is obtained without creative efforts belongs to the model that the present invention protects
It encloses.
It should be noted that：Similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined, then it further need not be defined and explained in subsequent attached drawing in a attached drawing.
In the description of the present invention, it should be noted that the orientation or positional relationship of the instructions such as term "inner", "outside" is base
In orientation or positional relationship shown in the drawings or the invention product using when the orientation or positional relationship usually put, only
It is that for convenience of description of the present invention and simplification of the description, not indicating or implying the indicated device or element must have specifically
Orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.In addition, term " first ", " the
Two " etc. are only used for distinguishing description, are not understood to indicate or imply relative importance.
In the description of the present invention, it is also necessary to which explanation is unless specifically defined or limited otherwise, term " setting ",
" connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；Can be
Mechanical connection can also be electrical connection；It can be directly connected, can also can be indirectly connected through an intermediary two
Connection inside element.For the ordinary skill in the art, above-mentioned term can be understood in the present invention with concrete condition
In concrete meaning.
In the present invention unless specifically defined or limited otherwise, fisrt feature can be on or below second feature
Be in direct contact including the first and second features, can also include the first and second features not be in direct contact but by them it
Between other characterisation contact.Moreover, fisrt feature is on second feature, top and above include fisrt feature second spy
Right over sign and oblique upper, or be merely representative of fisrt feature level height and be higher than second feature.Fisrt feature second feature it
Under, lower section and fisrt feature included below are immediately below second feature and obliquely downward, or be merely representative of fisrt feature level height
Less than second feature.
Embodiment 1
Fig. 1 to Fig. 4 is please referred to, a kind of wind tunnel force measurement model vibration damping branch based on constrained damping structure is present embodiments provided
Bar 100, including：
Strut matrix 10, strut matrix 10 include for installing the balance section 11 of strain balance 200, for installing knives bending machine
The transition construction section 13 of structure 300 and straight sections 12 are waited, waits one end of straight sections 12 to be connected with balance section 11, wait other the one of straight sections 12
End is connected with transition construction section 13；
Damping layer 20, damping layer 20 are wrapped in equal straight sections 12, and one end of damping layer 20 is abutted with balance section 11, damping layer 20
Other end abutted with transition construction section 13；
Restraint layer 30, restraint layer 30 are wrapped in damping layer 20, and one end of restraint layer 30 is abutted with balance section 11, restraint layer 30
Other end abutted with transition construction section 13；
The peripheral surface of the peripheral surface of restraint layer 30 and 30 part of close restraint layer of balance section 11, transition construction section 13 lean on
The peripheral surface of nearly 30 part of restraint layer flushes；
Equal straight sections 12 are above the elasticity modulus of damping layer 20 with the elasticity modulus of restraint layer 30.
Wherein, strain balance 200 and bent blade mechanism 300 are referred to the prior art, and the present embodiment, which does not do it, to be changed
Into without repeating.
By by peripheral surface, the transition construction section of the peripheral surface of restraint layer 30 and 30 part of close restraint layer of balance section 11
The peripheral surface of 13 30 part of close restraint layer is designed to the state flushed, the wind-tunnel based on constrained damping structure of the present embodiment
The geometric shape feature of dynamometry model vibration damping strut 100 is consistent with traditional strut, does not increase aerodynamic interference.
Specifically, strut matrix 10 and 30 material of restraint layer be usually using the higher alloy steel material of elasticity modulus, such as
F141,30CrMnSiA etc..
Specifically, 20 material of damping layer, which is generally selected, damps high viscoelastic material, such as rubber.
It is an option that between strut matrix 10 and damping layer 20, between damping layer 20 and restraint layer 30 be interference
Cooperation.
It is an option that it is be bonded between Nian Jie between strut matrix 10 and damping layer 20, damping layer 20 and restraint layer 30,
Bonding agent usually selects epoxy resin etc..
The principle of the present embodiment is：
During wind tunnel test, unsteady flow excitation causes model substantially to vibrate, and the energy of model vibration passes through strain
Balance 200 is transmitted at the wind tunnel force measurement model vibration damping strut 100 based on constrained damping structure.Due to equal 12 basis material of straight sections
Elastic modulus difference is all larger between 20 material of damping layer, between 30 material of 20 material of damping layer and restraint layer, causes respectively to connect
20 material of damping layer generates larger shear-deformable at contacting surface.Pass through repeatedly shear-deformable of 20 material of damping layer in vibration processes
Vibrational energy dissipation is converted to thermal energy, to greatly improve the mechanical damping of model supporting system, implementation model vibration
Fast Convergent.
It will be appreciated that effectiveness in vibration suppression to be improved, can damp material high as possible by selecting, be shaken with increasing consumption
The speed of energy.
Wind tunnel force measurement model vibration damping strut 100 based on constrained damping structure is a kind of passive vibration-proof structure, relative to
For active damping structure, due to the problem of not needing complicated control device, being not in system diverging, therefore cost is more
Low, reliability higher.Influence of the model supporting system vibration to force test in wind tunnel data is reduced, experiment envelope curve has been widened.
The wind tunnel force measurement model vibration damping strut 100 based on constrained damping structure of the present embodiment and existing model damping technology
It compares, has many advantages, such as, such as：
Can be under conditions of not increasing aerodynamic interference, the significantly promotion of implementation model support system entirety mechanical damping,
And then vibrational energy is quickly consumed, play effectiveness in vibration suppression；
Compared with active damping technology, due to not needing complicated measurement, control, actuating system, the lead time
It is short, manufacturing cost is low；
Compared with active damping technology, since vibration-proof structure only passively consumes energy, it is not present because design of control law is improper
Caused divergence problem, safety and reliability are all higher.
Embodiment 2
Fig. 5 and Fig. 6 are please referred to, the present embodiment is also provided that a kind of wind tunnel force measurement model based on constrained damping structure subtracts
Shake strut 100, the present embodiment and embodiment 1 difference lies in：
Damping layer 20 includes damping cavity capsule 40 and elastic damping grain 50, and 40 inside of damping cavity capsule has chamber, elastic damping
Grain 50 is movably placed in the chamber of damping cavity capsule 40.
Wherein, damping cavity capsule 40 is the high viscoelastic material of damping, such as rubber.
Specifically, chamber is distributed along the length direction of damping cavity capsule 40.
Further, chamber is along the circumferentially distributed of damping cavity capsule 40.
Detailed, chamber is square chamber 41.
In more detail, the quantity of square chamber 41 is multiple, and multiple square chambers 41 are between the inner homogeneous of damping cavity capsule 40
Every distribution.
Can also be the chamber of other shapes it will be appreciated that in addition to square chamber 41, as long as elastic damping can be accommodated
Grain 50 and allows 50 activity of elastic damping grain.
In the present embodiment, elastic damping grain 50 is in spherical.
It will be appreciated that in addition to spherical, additionally it is possible to it is some other such as bulk, ellipsoid or profiled shape, or
Person is the synthesis of all Multiple Shapes, as long as the elastic material that damping is high.
Remaining structure can refer to embodiment 1.
The principle of the present embodiment is：
By the spherical elastic damping grain 50 of placement in damping cavity capsule 40, in addition to damping cavity capsule 40 itself is anti-in vibration processes
Multiple shear-deformable vibrational energy dissipates is converted into thermal energy, and vibrational energy can also be dissipated and be converted by spherical elastic damping grain 50
It for thermal energy and kinetic energy, beats in chamber, can also aggravate the dissipation of vibrational energy in this way.
In addition the design of the laying mode of other side's cavity 41 can make the process of above-mentioned dissipation vibrational energy become more
Uniformly, it avoids local energy in the wind tunnel force measurement model vibration damping strut 100 based on constrained damping structure from excessively concentrating, ensures reliable
Property.
Embodiment 3
Fig. 7 to Fig. 9 is please referred to, the present embodiment is also provided that a kind of wind tunnel force measurement model based on constrained damping structure subtracts
Shake strut 100, the present embodiment and embodiment 1 difference lies in：
There is balance section 11 first circular conical surface 61, one end of restraint layer 30 to have the second circular conical surface 62, the first circular conical surface 61
Agree with and abut with 62 shape of the second circular conical surface；
There is the other end of restraint layer 30 third circular conical surface 63, transition construction section 13 to have the 4th circular conical surface 64, third
Circular conical surface 63 agrees with and abuts with 64 shape of the 4th circular conical surface；
Second circular conical surface 62 is inner conical surface, and third circular conical surface 63 is male cone (strobilus masculinus).
Remaining structure can refer to embodiment 1.
By the way that the first circular conical surface 61, the second circular conical surface 62, third circular conical surface 63 and the 4th circular conical surface 64, restraint layer 30 is arranged
Stress mutual in vibration processes is not easy to deposit between strut matrix 10, ensures the wind-tunnel based on constrained damping structure
There are one preferable service lifes for dynamometry model vibration damping strut 100.
In addition, the second circular conical surface 62 is inner conical surface, third circular conical surface 63 is the design of male cone (strobilus masculinus) so that in wind tunnel test,
Restraint layer 30 can keep stable relative to the connection of strut matrix 10, and restraint layer 30 is avoided to be detached from.
Technical characteristic in above-mentioned multiple embodiments, can be combined with each other in the absence of conflict.
In conclusion the wind tunnel force measurement model vibration damping strut 100 based on constrained damping structure of the present invention passes through strut base
The cooperation of body 10, damping layer 20 and restraint layer 30 can reduce model supporting system vibration and be surveyed to wind-tunnel in passive manner
The influence of power test data, widens experiment envelope curve, and safety and reliability is all higher.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, any made by repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of wind tunnel force measurement model vibration damping strut based on constrained damping structure, which is characterized in that including：
Strut matrix, the strut matrix include for installing the balance section of strain balance, the transition for installing bent blade mechanism
Construction section and wait straight sections, one end of the equal straight sections is connected with the balance section, the other end of the grade straight sections with it is described
Transition construction section is connected；
Damping layer, the damping layer are wrapped in described Deng straight sections, and one end of the damping layer is abutted with the balance section, the resistance
The other end of Buddhist nun's layer is abutted with the transition construction section；
Restraint layer, the restraint layer are wrapped in the damping layer, and one end of the restraint layer is abutted with the balance section, it is described about
The other end of beam layer is abutted with the transition construction section；
Peripheral surface, the transition construction section close to the constraint layer segment of the peripheral surface of the restraint layer and the balance section
Close to it is described constraint layer segment peripheral surface flush；
The equal straight sections are above the elasticity modulus of the damping layer with the elasticity modulus of the restraint layer.
2. the wind tunnel force measurement model vibration damping strut according to claim 1 based on constrained damping structure, which is characterized in that institute
It includes damping cavity capsule and elastic damping grain to state damping layer, and there is chamber, the elastic damping grain can live in the intracapsular portion of damping cavity
It is placed in dynamicly in the chamber of the damping cavity capsule.
3. the wind tunnel force measurement model vibration damping strut according to claim 2 based on constrained damping structure, which is characterized in that institute
Chamber is stated to be distributed along the length direction of the damping cavity capsule.
4. the wind tunnel force measurement model vibration damping strut according to claim 3 based on constrained damping structure, which is characterized in that institute
Chamber is stated along the circumferentially distributed of the damping cavity capsule.
5. special according to wind tunnel force measurement model vibration damping strut of the claim 2-4 any one of them based on constrained damping structure
Sign is that the chamber is square chamber.
6. the wind tunnel force measurement model vibration damping strut according to claim 5 based on constrained damping structure, which is characterized in that institute
The quantity for stating square chamber is multiple, and multiple square chambers are spaced apart in the inner homogeneous of the damping cavity capsule.
7. the wind tunnel force measurement model vibration damping strut according to claim 2 based on constrained damping structure, which is characterized in that institute
Elastic damping grain is stated in spherical.
8. the wind tunnel force measurement model vibration damping strut according to claim 1 based on constrained damping structure, which is characterized in that institute
It states between strut matrix and the damping layer, be interference fit between the damping layer and the restraint layer.
9. the wind tunnel force measurement model vibration damping strut according to claim 1 based on constrained damping structure, which is characterized in that institute
It states be bonded between Nian Jie, the described damping layer and the restraint layer between strut matrix and the damping layer.
10. the wind tunnel force measurement model vibration damping strut according to claim 1 based on constrained damping structure, which is characterized in that
The balance section has the first circular conical surface, and one end of the restraint layer has the second circular conical surface, first circular conical surface with it is described
Second cone surface shape agrees with and abuts；
There is the other end of the restraint layer third circular conical surface, the transition construction section to have the 4th circular conical surface, the third
Circular conical surface agrees with and abuts with the 4th cone surface shape；
Second circular conical surface is inner conical surface, and the third circular conical surface is male cone (strobilus masculinus).
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111307398A (en) * | 2020-03-04 | 2020-06-19 | 中国航天空气动力技术研究院 | Wind tunnel passive vibration reduction supporting rod based on TLD |
Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6401628B1 (en) * | 1999-05-20 | 2002-06-11 | Hitachi, Ltd. | Railway vehicle |
| US6547049B1 (en) * | 1999-11-05 | 2003-04-15 | Rolls-Royce Plc | Particle vibration damper |
| CN1663884A (en) * | 2005-03-22 | 2005-09-07 | 哈尔滨工业大学 | Vibration reduction restriction damping layer of spacecraft |
| CN102817423A (en) * | 2012-09-11 | 2012-12-12 | 同济大学 | Buffer-type suspension-type particle tuning quality damper |
| CN203543225U (en) * | 2013-09-02 | 2014-04-16 | 江苏大学 | Composite damping vibration attenuation honeycomb sandwich plate |
| CN104265828A (en) * | 2014-09-22 | 2015-01-07 | 太原科技大学 | Bionic interlaminar transition vibration energy dissipation structure |
| CN105291693A (en) * | 2015-10-29 | 2016-02-03 | 同济大学 | Wheel disc type particle damping absorber for rail vehicle |
| CN105606333A (en) * | 2016-03-07 | 2016-05-25 | 中国空气动力研究与发展中心高速空气动力研究所 | Small-deformation wind tunnel train balance |
| CN105758611A (en) * | 2016-03-07 | 2016-07-13 | 中国空气动力研究与发展中心高速空气动力研究所 | Impact resisting device for wind-tunnel balance |
| CN105784313A (en) * | 2016-03-01 | 2016-07-20 | 中国航天空气动力技术研究院 | Wind tunnel experiment strut vibration suppression system and method based on piezoelectric technology |
| CN105864272A (en) * | 2016-05-24 | 2016-08-17 | 西南交通大学 | Low-frequency vibration isolation metamaterial shaft structure |
| CN105922817A (en) * | 2016-04-21 | 2016-09-07 | 同济大学 | Urban rail vehicle wheel composite damping vibration attenuation noise reduction device |
| CN206065451U (en) * | 2016-10-08 | 2017-04-05 | 中北大学 | A kind of granule damping and magneto-rheological combined vibration reducing boring cutter |
| CN106644367A (en) * | 2017-01-13 | 2017-05-10 | 中国空气动力研究与发展中心高速空气动力研究所 | Compound large-resistance wind-tunnel strain balance |
| CN206860241U (en) * | 2017-07-06 | 2018-01-09 | 乐山职业技术学院 | Vibration damping harden structure and aero-engine |
| CN108050337A (en) * | 2017-11-06 | 2018-05-18 | 成都飞机工业（集团）有限责任公司 | For the alloyed aluminium variable chamber particles-impact damper of pipeline vibration damping |
| CN108195545A (en) * | 2017-12-05 | 2018-06-22 | 中国航天空气动力技术研究院 | Slender bodies aircraft elastic model vibration testing device |
| CN208765927U (en) * | 2018-09-04 | 2019-04-19 | 中国空气动力研究与发展中心高速空气动力研究所 | Wind tunnel force measurement model vibration damping strut based on constrained damping structure |
-
2018
- 2018-09-04 CN CN201811027609.2A patent/CN108801581A/en active Pending
Patent Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6401628B1 (en) * | 1999-05-20 | 2002-06-11 | Hitachi, Ltd. | Railway vehicle |
| US6547049B1 (en) * | 1999-11-05 | 2003-04-15 | Rolls-Royce Plc | Particle vibration damper |
| CN1663884A (en) * | 2005-03-22 | 2005-09-07 | 哈尔滨工业大学 | Vibration reduction restriction damping layer of spacecraft |
| CN102817423A (en) * | 2012-09-11 | 2012-12-12 | 同济大学 | Buffer-type suspension-type particle tuning quality damper |
| CN203543225U (en) * | 2013-09-02 | 2014-04-16 | 江苏大学 | Composite damping vibration attenuation honeycomb sandwich plate |
| CN104265828A (en) * | 2014-09-22 | 2015-01-07 | 太原科技大学 | Bionic interlaminar transition vibration energy dissipation structure |
| CN105291693A (en) * | 2015-10-29 | 2016-02-03 | 同济大学 | Wheel disc type particle damping absorber for rail vehicle |
| CN105784313A (en) * | 2016-03-01 | 2016-07-20 | 中国航天空气动力技术研究院 | Wind tunnel experiment strut vibration suppression system and method based on piezoelectric technology |
| CN105758611A (en) * | 2016-03-07 | 2016-07-13 | 中国空气动力研究与发展中心高速空气动力研究所 | Impact resisting device for wind-tunnel balance |
| CN105606333A (en) * | 2016-03-07 | 2016-05-25 | 中国空气动力研究与发展中心高速空气动力研究所 | Small-deformation wind tunnel train balance |
| CN105922817A (en) * | 2016-04-21 | 2016-09-07 | 同济大学 | Urban rail vehicle wheel composite damping vibration attenuation noise reduction device |
| CN105864272A (en) * | 2016-05-24 | 2016-08-17 | 西南交通大学 | Low-frequency vibration isolation metamaterial shaft structure |
| CN206065451U (en) * | 2016-10-08 | 2017-04-05 | 中北大学 | A kind of granule damping and magneto-rheological combined vibration reducing boring cutter |
| CN106644367A (en) * | 2017-01-13 | 2017-05-10 | 中国空气动力研究与发展中心高速空气动力研究所 | Compound large-resistance wind-tunnel strain balance |
| CN206860241U (en) * | 2017-07-06 | 2018-01-09 | 乐山职业技术学院 | Vibration damping harden structure and aero-engine |
| CN108050337A (en) * | 2017-11-06 | 2018-05-18 | 成都飞机工业（集团）有限责任公司 | For the alloyed aluminium variable chamber particles-impact damper of pipeline vibration damping |
| CN108195545A (en) * | 2017-12-05 | 2018-06-22 | 中国航天空气动力技术研究院 | Slender bodies aircraft elastic model vibration testing device |
| CN208765927U (en) * | 2018-09-04 | 2019-04-19 | 中国空气动力研究与发展中心高速空气动力研究所 | Wind tunnel force measurement model vibration damping strut based on constrained damping structure |
Non-Patent Citations (5)
| Title |
|---|
| 付立新;: "带有粘弹性材料涂层的颗粒阻尼器实验", 承德石油高等专科学校学报, no. 03 * |
| 任德新;张大义;何易峰;陈璐璐;洪杰;: "带颗粒型金属橡胶夹层阻尼结构的振动响应研究", 推进技术, no. 01 * |
| 孟宝清;韩桂来;姜宗林;: "结构振动对大型激波风洞气动力测量的干扰", 力学学报, no. 01 * |
| 梁鉴;张卫国;王勋年;杜进宏;: "4m×3m风洞无人机模型振动抑制系统研制", 实验流体力学, no. 04 * |
| 鲁继文;刘巍;刘昱;贾振元;刘惟肖;张家昆;姜雨丰;: "风洞模型支杆系统设计及振动主动控制", 计测技术, no. 04 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111307398A (en) * | 2020-03-04 | 2020-06-19 | 中国航天空气动力技术研究院 | Wind tunnel passive vibration reduction supporting rod based on TLD |
| CN111307398B (en) * | 2020-03-04 | 2022-03-04 | 中国航天空气动力技术研究院 | Wind tunnel passive vibration reduction supporting rod based on TLD |
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