CN107023394A - Tubular type compressor rotor air entraining device with damping - Google Patents
Tubular type compressor rotor air entraining device with damping Download PDFInfo
- Publication number
- CN107023394A CN107023394A CN201710226955.2A CN201710226955A CN107023394A CN 107023394 A CN107023394 A CN 107023394A CN 201710226955 A CN201710226955 A CN 201710226955A CN 107023394 A CN107023394 A CN 107023394A
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- China
- Prior art keywords
- air entraining
- collar
- disk
- entraining pipe
- bleed
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
- F02C7/00—Features, components parts, details or accessories, not provided for in, or of interest apart form groups F02C1/00 - F02C6/00; Air intakes for jet-propulsion plants
- F02C7/04—Air intakes for gas-turbine plants or jet-propulsion plants
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The present invention relates to compressor rotor structure-design technique field, specifically provide the tubular type compressor rotor air entraining device with damping, core is flowed to for guiding air-flow from the wheel hub of compressor, air entraining device includes air entraining pipe, damper tube and bleed disk, bleed tube wall is provided with air entraining pipe flange, damp tube wall raised provided with damper tube, the top surface and bleed disk of air entraining pipe flange are in contact, the bottom surface of air entraining pipe flange and the raised top surface laminating contact of damper tube;Bleed disk is hollow disk, and its outer wall is provided with the pore for installing air entraining pipe, and the side end face of bleed disk one is provided with the external member fixed block being axially fixed in air entraining pipe on pore, and another side end face is provided with the block for being raised in the side end face;Collar is housed, the both sides end face of collar is contacted with block and air entraining pipe flange respectively, and collar is circumferentially fixed on bleed disk by air entraining pipe on bleed disk;Collar is provided with the collar head for being raised in collar end face, and collar head and block, which are engaged, makes collar circumferentially fixed along bleed disk.
Description
Technical field
The present invention relates to compressor rotor structure-design technique field, the tubular type compressor rotor more particularly to damping draws
Device of air.
Background technology
Needed when aero-engine works from the bleed of compressor rotor part, so that other parts are obturaged or are cooled down,
Because compressor rotor component speed is higher, what gas entered is by shape during a typical inside rotating disc cavities, radial inward flow
Into strong vortex.If gas formation is free vortex, then the eddy flow formed during radial inward flow will be more and more stronger
Strong, so as to produce the very big pressure loss, design, which subtracts whirlpool device, in air entraining device can solve this problem well.
The whirlpool device that subtracts applied at this stage mainly has tubular type, nozzle-type, board-like etc..As shown in figure 1, it is in pressure that tubular type, which subtracts whirlpool device,
A series of radial direction pipes are installed between mechanism of qi disk, promote the Radial Flow of air-flow by the radial directed of air entraining pipe, destruction is freely
The formation in whirlpool, so as to reduce the pressure loss and air-flow pressure drop, makes it easier to flow to core by compressor wheel hub, current
V2500 Engine Series just use the air entraining device of this kind of form, but the air entraining device has the disadvantage that:
1st, air entraining pipe does not take appropriate vibration reducing measure, and as rotor part, it is in the process rotated with compressor rotor
In it is unavoidable produce vibration problem, vibration can not be controlled effectively, it is likely that itself is caused damage, and reduce reliability;
2nd, the volume of bleed disk disk body is larger so that its construction weight is larger, is unfavorable for reducing the weight of air entraining device, and
And the radius of bleed disk disk body is larger so that its radius of turn is larger, cause in the course of the work its own stress it is larger.
The content of the invention
To overcome at least one defect that above-mentioned prior art is present, calmed the anger the invention provides a kind of tubular type of band damping
Machine rotor air entraining device, the wheel hub for guiding air-flow from the compressor flows to core, and the air entraining device is fixed on
Between the first wheel disc and the second wheel disc of the compressor, the air entraining device includes air entraining pipe, damper tube and bleed disk;
Bleed tube wall bottom is provided with coaxially raised provided with damper tube on air entraining pipe flange, the tube wall of damper tube, bleed
Pipe sleeve is located at composition air entraining pipe external member on damper tube, and the top surface and bleed disk of air entraining pipe flange are in contact, the bottom of air entraining pipe flange
Face and the raised top surface laminating contact of damper tube;
Bleed disk is hollow disk, and its outer wall is circumferentially evenly equipped with the pore for installing air entraining pipe, wherein the one of bleed disk
Side end face is circumferential to be provided with external member fixed block in uniform way, and the air entraining pipe external member is axially fixed on pore, drawn by external member fixed block
Another side end face of gas disk is circumferential in uniform way provided with the block for being raised in the side end face;
Collar, a side end face of collar and block laminating contact, another side end face difference are removably housed on bleed disk
Contacted with air entraining pipe flange and damper tube projection laminating, collar is circumferentially fixed on bleed disk by the air entraining pipe external member;
Collar is provided with the collar head for being raised in collar end face, and collar head and block, which are engaged, makes collar circumferential along bleed disk
It is fixed.
It is preferred that, the outer rim of the side end face provided with external member fixed block of bleed disk is provided with side is installed, and it is in disk to install side
Shape, bleed disk is fixed on the second wheel disc by installing side.
It is preferred that, the raised rounded rectangle of air entraining pipe flange and damper tube and both sizes are identical.
It is preferred that, external member fixed block is L-shaped or J-shaped hook, and the length and the aperture phase of pore of external member fixed block
Together.
It is preferred that, collar is provided with two collar heads, and collar head is along the axial raised projection of collar, between collar head
Distance is identical with the length of block.
It is preferred that, the top tube wall of damper tube is axially provided with four gaps along damper tube, and four gaps are circumferentially distributed on
Damp on tube wall.
It is preferred that, lightening recesses are equipped with the inner and outer wall of bleed disk, the lightening recesses are arranged on adjacent apertures
Between.
The tubular type compressor rotor air entraining device for the band damping that the present invention is provided, has the advantages that:
1st, the damper tube being arranged in air entraining pipe can absorb the vibrational energy of air entraining device in the course of the work, and then subtract
Small vibration, improves reliability and the life-span of air entraining device.
2nd, bleed disk, which is fixed on hub area, can reduce bleed disk radius, and reduce the radius of turn of bleed disk, and
Lightening recesses are provided with bleed disk, the weight of air entraining device can be substantially reduced, and reduce its own weight reduction bleed disk
Stress.
3rd, it is engaged by external member fixed block, block and collar, bleed is facilitated while air entraining pipe steadiness is ensured
The dismounting of pipe, saves installation time and is easy to later maintenance.
Brief description of the drawings
Fig. 1 is operating diagram of the air entraining device of the prior art in compressor rotor;
Fig. 2 is the overall schematic for the air entraining device that the present invention is provided;
Fig. 3 is operating diagram of the air entraining device of the invention provided in compressor rotor;
Fig. 4 is the elevational cross-sectional view of air entraining pipe;
Fig. 5 is the vertical view cutaway drawing of air entraining pipe;
Fig. 6 is the elevational cross-sectional view of damper tube;
Fig. 7 is the vertical view cutaway drawing of damper tube;
Fig. 8 is the overall schematic of bleed disk;
Fig. 9 is the schematic elevation view of bleed disk;
Figure 10 is the side view cutaway drawing of bleed disk;
Figure 11 is the schematic elevation view of collar;
Figure 12 is the structural representation in C directions in Figure 11;
Figure 13 is the overall assembling schematic diagram of air entraining pipe external member;
Figure 14 is the partial enlarged drawing of location A in Fig. 2;
Figure 15 is the partial enlarged drawing of B location in Fig. 2.
Reference:First wheel disc 1, the second wheel disc 2, air entraining pipe 3, air entraining pipe flange 31, damper tube 4, damper tube is raised
41, gap 42, bleed disk 5, external member fixed block 51, block 52, pore 53 installs side 54, collar 6, collar first 61, gap 7.
Embodiment
To make the purpose, technical scheme and advantage of the invention implemented clearer, below in conjunction with the embodiment of the present invention
Accompanying drawing, the technical scheme in the embodiment of the present invention is further described in more detail.In the accompanying drawings, identical from beginning to end or class
As label represent same or similar element or the element with same or like function.Described embodiment is the present invention
A part of embodiment, rather than whole embodiments.The embodiments described below with reference to the accompanying drawings are exemplary, it is intended to uses
It is of the invention in explaining, and be not considered as limiting the invention.Based on the embodiment in the present invention, ordinary skill people
The every other embodiment that member is obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", "front", "rear",
The orientation or position relationship of the instruction such as "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer " is based on accompanying drawing institutes
The orientation or position relationship shown, is for only for ease of the description present invention and simplifies description, rather than indicate or imply meaning
Device or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to present invention guarantor
Protect the limitation of scope.
Below by specific embodiment, the present invention is described in further detail.
Specific embodiment:
As shown in Figures 2 and 3, the invention provides a kind of tubular type compressor rotor air entraining device of band damping, for drawing
Flow guide flows to core from the wheel hub of the compressor, and the air entraining device is fixed on the first wheel disc 1 of the compressor
And second between wheel disc 2, the air entraining device includes air entraining pipe 3, damper tube 4 and bleed disk 5;
As shown in Figures 4 and 5, the tube wall bottom of air entraining pipe 3 is provided with air entraining pipe flange 31 to the structure of air entraining pipe 3, damper tube 4
Structure as shown in FIG. 6 and 7, is coaxially provided with damper tube projection 41, the present embodiment, air entraining pipe is turned on the tube wall of damper tube 4
Side 31 and the rounded rectangle of damper tube projection 41, and length, width and the thickness of air entraining pipe flange 31 and damper tube projection 41
All same, the top of damper tube 4 is less than the top of air entraining pipe 3, and the top tube wall of damper tube 4 is axially provided with four along damper tube 4
Gap 42, four gaps 42 are circumferential to be distributed on the tube wall of damper tube 4, and damper tube 4 can consume vibrational energy, by damper tube 4
Vibrational energy of the air entraining device in the course of work can be absorbed in air entraining pipe 3, and then reduces vibration;
Air entraining pipe 3 is set in composition air entraining pipe external member on damper tube 4, when the air entraining pipe external member is installed on bleed disk 5
Afterwards, the inwall of the top surface of air entraining pipe flange 31 and bleed disk 5 is in contact, the bottom surface of air entraining pipe flange 31 and damper tube projection 41
Top surface laminating contact, and because air entraining pipe flange 31 is identical with the size of damper tube projection 41, therefore the air entraining pipe external member
Bottom forms the round rectangle of an entirety.
The structure of bleed disk 5 is as shown in Fig. 8 to Figure 10, and bleed disk 5 is hollow disk, and its outer wall is circumferentially evenly equipped with for pacifying
Fill the pore 53 of air entraining pipe 3, it is preferred that the quantity of pore 53 is 20;In the present embodiment, the inner and outer wall of bleed disk 5
On be equipped with lightening recesses, the lightening recesses are arranged between each two adjacent apertures 53, the weight for mitigating bleed disk 5
Amount, it is preferred that the lightening recesses are curved, when the quantity of pore 53 is 20, the lightening recesses number on bleed disk 5
Measure as 40;
A wherein side end face for bleed disk 5 is circumferential to be provided with external member fixed block 51, another side end face week of bleed disk 5 in uniform way
To provided with the block 52 for being raised in the side end face, the air entraining pipe external member is axially fixed in pore by external member fixed block 51 in uniform way
On 53, i.e., external member fixed block 51 prevents the axial movement of the air entraining pipe external member, and when the quantity of pore 53 is 20, external member is solid
The quantity for determining block 51 and block 52 is also 20;In the present embodiment, external member fixed block 51 is L-shaped or J-shaped hook, and
The length of external member fixed block 51 is identical with the aperture of pore 53, and the air entraining pipe is hooked by the bending part of external member fixed block 51
External member, to prevent it from moving axially, it is ensured that its axial steadiness;
The outer rim of the side end face provided with external member fixed block 51 of bleed disk 5 is provided with side 54 is installed, and it is in disk to install side 54
Shape, bleed disk 5 is fixed on the second wheel disc 2 by installing side 54, it is preferred that is installed and is provided with some through holes, rim 54 on side 54
It can be bolted on the second wheel disc 2, the through hole is in staggered distribution with pore 53, to prevent for installing bleed disk 5
Bolt and the air entraining pipe external member are interfered and collided;
Removably equipped with a collar 6 on bleed disk 5, the structure of collar 6 is as shown in figure 11, a side end face of collar 6
Fit and contact with block 52, another side end face is contacted with air entraining pipe flange 31 and the laminating of damper tube projection 41 respectively, and collar 6 will
The air entraining pipe external member is circumferentially fixed on bleed disk 5;
As shown in FIG. 13 and 14, due to air entraining pipe flange 31 and the rounded rectangle of damper tube projection 41, therefore bleed
Pipe flange 31 is different with the adjacent edge of damper tube projection 41 wide, when installing the air entraining pipe external member, makes the bleed pipe sleeve
The air entraining pipe external member is put into pore 53 in the state of the narrow side of part and bleed disk 5 are axially in parallel, then by the bleed
Pipe sleeve part rotated ninety degrees, now air entraining pipe flange 31 and two broadsides of damper tube projection 41 are axially equal with bleed disk 5
OK, the side broadside close to block 52 and the also certain distance of block 52, now install collar 6, and the thickness of collar 6 compensate for
The distance so that the air entraining pipe external member does not have space to carry out rotation, realizes the air entraining pipe external member along itself circumference
It is fixed.
As shown in figure 12, collar 6 is provided with the collar first 61 for being raised in the end face of collar 6, the present embodiment in the present embodiment,
Collar first 61 is that, along the axial raised projection of collar 6, its quantity is two, the length of collar first the distance between 61 and block 52
Identical, it is engaged with block 52 makes collar 6 circumferentially fixed along bleed disk 5;
As shown in figure 15, after collar 6 is arranged on bleed disk 5, because collar first 61 and block 52 are along bleed disk 5
The projection of axial direction, therefore both can interfere mutually, and because collar first the distance between 61 is identical with the length of block 52,
Therefore block 52 is just clipped in the middle by two collars first 61, and the movement of collar 6 is prevented with this.
The erection sequence of the air entraining device is as follows:
From the lower section of air entraining pipe 3 insertion damper tube 4, ensure after assembling the broadside of air entraining pipe flange 31 and damper tube projection 41 with
Broadside align, it is narrow while with it is narrow while align, composition air entraining pipe external member;
The air entraining pipe external member is inserted from the core of bleed disk 5, ensures that the narrow side of air entraining pipe 3 and damper tube 4 is put down during insertion
The air entraining pipe external member, after after the fully-inserted bleed disk 5 of the air entraining pipe external member, is rotated 90 by row in the axial direction of bleed disk 5
Degree;
After after all air entraining pipe external member installations, load collar 6 from the core of bleed disk 5, collar first 61, which is blocked, appoints
One block 52.
As shown in figure 3, the air entraining device is bolted on the second wheel disc 2, the second wheel disc 2 and the first wheel disc 1
Between mutually fixed again by bolt, compressor rotor operationally, gas pass through gap 7 enter the air entraining device bleed
Pipe 3, is guided by air entraining pipe 3 to air-flow.
The foregoing is only a specific embodiment of the invention, but protection scope of the present invention is not limited thereto, any
Those familiar with the art the invention discloses technical scope in, the change or replacement that can be readily occurred in, all should
It is included within the scope of the present invention.Therefore, protection scope of the present invention should using the scope of the claims as
It is accurate.
Claims (7)
1. a kind of tubular type compressor rotor air entraining device of band damping, for guiding the wheel hub of air-flow from the compressor to flow to disk
The heart, the air entraining device is fixed between the first wheel disc (1) of the compressor and the second wheel disc (2), it is characterised in that:
The air entraining device includes air entraining pipe (3), damper tube (4) and bleed disk (5);
Air entraining pipe (3) tube wall bottom is provided with coaxially raised provided with damper tube on air entraining pipe flange (31), the tube wall of damper tube (4)
(41), air entraining pipe (3) is set in composition air entraining pipe external member, the top surface and bleed disk (5) of air entraining pipe flange (31) on damper tube (4)
It is in contact, the top surface laminating contact of the bottom surface of air entraining pipe flange (31) and damper tube raised (41);
Bleed disk (5) is hollow disk, and its outer wall is circumferentially evenly equipped with the pore (53) for installing air entraining pipe (3), bleed disk (5)
A wherein side end face it is circumferential be provided with external member fixed block (51) in uniform way, external member fixed block (51) is by air entraining pipe external member axial direction
It is fixed on pore (53), another side end face of bleed disk (5) is circumferential in uniform way provided with the block (52) for being raised in the side end face;
Collar (6), a side end face of collar (6) and block (52) laminating contact, opposite side are removably housed on bleed disk (5)
End face is contacted with air entraining pipe flange (31) and damper tube raised (41) laminating respectively, and collar (6) is all by the air entraining pipe external member
To being fixed on bleed disk (5);
Collar (6) is provided with the collar head (61) for being raised in collar (6) end face, and collar head (61) and block (52), which are engaged, makes card
Enclose (6) circumferentially fixed along bleed disk (5).
2. the tubular type compressor rotor air entraining device of band damping according to claim 1, it is characterised in that:Bleed disk (5)
The side end face provided with external member fixed block (51) outer rim provided with install side (54), install side (54) it is in disk form, bleed disk
(5) it is fixed on by installing side (54) on the second wheel disc (2).
3. the tubular type compressor rotor air entraining device of band damping according to claim 1, it is characterised in that:Air entraining pipe flange
(31) with raised (41) rounded rectangle of damper tube and both sizes are identical.
4. the tubular type compressor rotor air entraining device of band damping according to claim 1, it is characterised in that:External member fixed block
(51) it is L-shaped or J-shaped hook, and the length of external member fixed block (51) is identical with the aperture of pore (53).
5. the tubular type compressor rotor air entraining device of band damping according to claim 1, it is characterised in that:On collar (6)
Provided with two collar heads (61), collar head (61) be along collar (6) axial raised projection, the distance between collar head (61) and
The length of block (52) is identical.
6. the tubular type compressor rotor air entraining device of band damping according to claim 1, it is characterised in that:Damper tube (4)
Top tube wall be axially provided with four gaps (42) along damper tube (4), four gaps (42) are circumferentially distributed on damper tube (4) pipe
On wall.
7. the tubular type compressor rotor air entraining device of band damping according to claim 1, it is characterised in that:Bleed disk (5)
Inner and outer wall on be equipped with lightening recesses, the lightening recesses are arranged between adjacent apertures (53).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201710226955.2A CN107023394B (en) | 2017-04-07 | 2017-04-07 | Tubular type compressor rotor air entraining device with damping |
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Application Number | Priority Date | Filing Date | Title |
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CN201710226955.2A CN107023394B (en) | 2017-04-07 | 2017-04-07 | Tubular type compressor rotor air entraining device with damping |
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CN107023394A true CN107023394A (en) | 2017-08-08 |
CN107023394B CN107023394B (en) | 2019-03-22 |
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CN201710226955.2A Active CN107023394B (en) | 2017-04-07 | 2017-04-07 | Tubular type compressor rotor air entraining device with damping |
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Cited By (11)
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EP3543539A1 (en) * | 2018-03-21 | 2019-09-25 | United Technologies Corporation | Anti-vortex tube for turbine engine compressor with flared endportion |
CN111379736A (en) * | 2020-04-03 | 2020-07-07 | 中国航发沈阳发动机研究所 | Air entraining structure of air compressor |
CN112088252A (en) * | 2018-05-09 | 2020-12-15 | 赛峰飞机发动机公司 | Turbine and method of collecting airflow in a turbine |
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CN113847280A (en) * | 2021-10-10 | 2021-12-28 | 中国航发沈阳发动机研究所 | Compressor rotor interstage bleed air structure |
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CN114542641A (en) * | 2020-11-24 | 2022-05-27 | 中国航发商用航空发动机有限责任公司 | Damping vibration attenuation device and aircraft engine |
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CN114776927A (en) * | 2022-04-16 | 2022-07-22 | 中国航发沈阳发动机研究所 | Aeroengine bleed pipe damping vibration attenuation structure |
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US10774742B2 (en) | 2018-03-21 | 2020-09-15 | Raytheon Technologies Corporation | Flared anti-vortex tube rotor insert |
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CN112503029A (en) * | 2019-09-16 | 2021-03-16 | 中国航发商用航空发动机有限责任公司 | Aircraft engine compressor and turbine reducing assembly |
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US11414995B2 (en) | 2020-09-17 | 2022-08-16 | Raytheon Technologies Corporation | Anti-vortex tube retaining ring and bore basket |
CN112178323B (en) * | 2020-09-21 | 2022-05-06 | 中国航发沈阳发动机研究所 | Self-locking air conduit |
CN112178323A (en) * | 2020-09-21 | 2021-01-05 | 中国航发沈阳发动机研究所 | Self-locking air conduit |
CN114542641A (en) * | 2020-11-24 | 2022-05-27 | 中国航发商用航空发动机有限责任公司 | Damping vibration attenuation device and aircraft engine |
CN114542640A (en) * | 2020-11-24 | 2022-05-27 | 中国航发商用航空发动机有限责任公司 | Damping vibration attenuation device and aircraft engine |
CN114542640B (en) * | 2020-11-24 | 2024-04-05 | 中国航发商用航空发动机有限责任公司 | Damping vibration attenuation device and aeroengine |
CN114542641B (en) * | 2020-11-24 | 2024-04-05 | 中国航发商用航空发动机有限责任公司 | Damping vibration attenuation device and aeroengine |
CN113847280A (en) * | 2021-10-10 | 2021-12-28 | 中国航发沈阳发动机研究所 | Compressor rotor interstage bleed air structure |
CN114109511A (en) * | 2021-11-12 | 2022-03-01 | 中国航发沈阳发动机研究所 | Novel disk center connecting structure and double-spoke-plate turbine disk with same |
CN114109511B (en) * | 2021-11-12 | 2024-06-18 | 中国航发沈阳发动机研究所 | Novel disk core connection structure and double-radial-plate turbine disk with same |
CN114776927A (en) * | 2022-04-16 | 2022-07-22 | 中国航发沈阳发动机研究所 | Aeroengine bleed pipe damping vibration attenuation structure |
CN114776927B (en) * | 2022-04-16 | 2024-04-09 | 中国航发沈阳发动机研究所 | Damping vibration attenuation structure of air guide pipe of aeroengine |
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