CN103089345A - Accommodating device used for rotary component - Google Patents
Accommodating device used for rotary component Download PDFInfo
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- CN103089345A CN103089345A CN201110336509XA CN201110336509A CN103089345A CN 103089345 A CN103089345 A CN 103089345A CN 201110336509X A CN201110336509X A CN 201110336509XA CN 201110336509 A CN201110336509 A CN 201110336509A CN 103089345 A CN103089345 A CN 103089345A
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- runner assembly
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Abstract
An accommodating device used for a rotary component comprises a shell, reinforcing fibers and shearing thickening liquid. The shell encircles the rotary component and is formed by extending in the axial direction and the circumferential direction of the rotary component, an annular accommodating cavity is limited in the shell, the reinforcing fibers are filled in at least one part of the accommodating cavity, and the shearing thickening liquid flowably fills at least one part of the cavity and dips the reinforcing fibers. The accommodating device used for the rotary component is applied in an aviation engine and capable of improving accommodating capacity and lowering weight of an accommodating case, and application of the shearing thickening liquid can further lower the weight of the case and improve impact resistance.
Description
Technical field
The present invention relates to a kind of containment means for Runner assembly, a kind of containing assembly and contain casing.
Background technique
Although modern turbofan engine can move up to ten thousand hours and failsafe, yet, in case appearring in fan, non-inclusive accident just might cause the fatal crass.If the fragment of fan blade at a high speed penetrates casing and flies out, probably can wound cabin, fuel tank, hydraulic pipe line and the electrical control circuit etc. of aircraft, cause cabin decompression, fuel tank to leak on fire, aircraft and control the secondary such as malfunctioning and destroy, seriously jeopardize flight safety.Therefore, the inclusive design of engine crankcase is very important, that is, the design casing can fall blade piece or the blade that comes off and capture and have great importance.
Fan commonly used contains casing on aeroengine three kinds: alloy casing and the composite material casing of alloy casing, winding " Kevlar (Kevlar) " structure.Intensity and the toughness of alloy casing are better, yet density and quality are larger, are most widely used in this casing motor in early days.Be wound around the alloy casing of " Kevlar (Kevlar) " structure, generally be wound around high-intensity kevlar fiber outside the casing internal layer of aluminum alloy or titanium alloy, like this, lighter weight, but the containing ability is stronger, general blade falls piece and can be captured by kevlar fiber, and adopting a typical example of this casing is the GE90 h type engine h.The composite material casing generally adopts two dimension or 3 D weaving to be shaped, and quality is lighter, yet, remain to be strengthened on intensity, rigidity, but the full composite material casing is a direction of following research and development.At present, General Electric Co. Limited's (General Electric is called for short GE) has used carbon fiber reinforced composite material casing in the GEnx motor.
US Patent No. 4,699,567 disclose a kind of containing ring for turbofan engine, and this containing ring comprises the cylindrical body of rigidity, is wound with multi-layer braided lamination coating on cylindrical outer surface.
US Patent No. 6,059,523 disclose a kind of containing system for containing blade or blade fragment, and it comprises the first internal circumferential containment means, surrounds the second exterior circumferential containment means of this first internal circumferential containment means, the circumferential sheet that the ductile material between the first internal circumferential containment means and the second exterior circumferential containment means is made and the erecting device that is used for installing the first internal circumferential device and the second exterior circumferential device.
US Patent No. 6,053,696 disclose the supporting outer that is used for the fancase of turbofan engine, and this turbofan engine comprises fan, a plurality of fan blade that is arranged on the fan periphery.Fancase comprises that flexible blade contains band, and it is arranged on the outer surface of supporting outer, and this flexible blade contains band to be made by many kevlar fibers material.
Also have many other blade subsumption architectures in prior art, such as being disclosed in US Patent No. 4,534,698, US 5,482,429 structure, yet these prior aries or the current disclosed subsumption architecture of background technique are not that to be difficult to make be exactly that quality is excessive, therefore need a kind of novel blade subsumption architecture solve these problems.
Summary of the invention
According to one object of the present invention, a kind of containment means for Runner assembly is disclosed, it comprises housing, reinforcing fiber and STF.Its middle shell extends around Runner assembly and on the axial and circumferential of Runner assembly and forms, and limits the cavity that holds of an annular in it.Reinforcing fiber is filled at least a portion cavity that holds cavity.STF can fluidly be arranged at least a portion cavity that is filled with reinforcing fiber and flood reinforcing fiber.
Particularly, Runner assembly includes fan at least, has a plurality of blades on fan.
More preferably, loop connecting section is cellular structure.
More preferably, reinforcing fiber is aromatic polyamide fiber
More preferably, aromatic polyamide fiber is kevlar fiber.
More preferably, the dispersion medium of STF is polyvinyl alcohol, and dispersed phase is nanometer silica gel particle.
More preferably, annular sound-absorbing part is arranged in to hold in cavity and with the internal surface of housing and is connected, and is in the described at least a portion cavity that holds in cavity and is jointly limited by annular sound-absorbing part and housing.
In one embodiment of the invention, annular sound-absorbing part is connected to and holds cavity near on the internal surface of described Runner assembly side, and has formed described passage between the not connection side away from the inwall of Runner assembly side and annular sound-absorbing part.
In another embodiment of the invention, annular sound-absorbing part is connected to and holds on the inwall of cavity away from the Runner assembly side, and wherein, described at least a portion cavity is formed at and holds between the not connection side of cavity near the inwall of Runner assembly side and annular sound-absorbing part.
In another mode of execution of the present invention, the annular sound-absorbing part has interior cellular structure and outer cellular structure, interior cellular structure is connected to and holds cavity near on the inwall of Runner assembly side, outer cellular structure is connected to and holds on the inwall of cavity away from the Runner assembly side, wherein, described at least a portion cavity is formed at this interior cellular structure and is somebody's turn to do between outer cellular structure.
Further, at least a portion cavity by interior cellular structure near at least one groove that has on the Runner assembly side and outside at least one groove of having on away from the Runner assembly side of cellular structure be oppositely arranged and form.
Further, be connected with respectively the interior annular seal plate consistent with its surface configuration and outer ring sealing plate on the outer surface of interior cellular structure and the internal surface of outer cellular structure, so that interior cellular structure and outer cellular structure are sealed.
Preferably, should have a plurality of outer grooves near on the Runner assembly side by outer cellular structure, with a plurality of outer grooves relatively, should have a plurality of inner groovies by interior cellular structure on away from the Runner assembly side, described at least a portion cavity is formed jointly by outer groove and inner groovy, and the inside of described at least a portion cavity is connected.
Preferably, the material of annular sound-absorbing part is aluminum or aluminum alloy.
Preferably, the material of housing is steel, aluminium, titanium, aluminum alloy or titanium alloy.
According to another object of the present invention, a kind of containing filler is also disclosed, it is arranged in the casing of motor, contains the blade fragment when rupturing for the fan blade when motor lost efficacy.Containing filler comprises: reinforcing fiber, and it is filled at least one annular pass in casing; STF, it can fluidly be full of in the annular pass and dipping reinforcing fiber wherein.Wherein, selectively, this reinforcing fiber is aromatic polyamide fiber.Preferably, this aromatic polyamide fiber can be kevlar fiber.
The present invention can strengthen the containing ability that aerial engine fan contains casing, reduces its weight.STF is applied to aeroengine and contains casing, can further reduce its weight, strengthens impact resistance.
Description of drawings
Fig. 1 is the longitudinal section view of the casing main body of one embodiment of the present invention, and it diagrammatically shows the structure of casing main body and fan blade with respect to the position of casing main body;
Fig. 2 is the partial enlarged drawing of Fig. 1, and it at length shows the internal structure of holding cavity that the casing main body limits;
Fig. 3 is outer ring sealing plate in Fig. 1 and Fig. 2 and the radial cross section schematic diagram of interior annular seal plate.
Embodiment
As everyone knows, on the engine nacelle of aircraft, casing is such as fan blade and the toroidal shell that extends on the axial and circumferential of Runner assembly around Runner assembly, define an annular in it and hold cavity, this cavity has diametrically near the inboard inwall of Runner assembly with away from the outside inwall of Runner assembly.
Fig. 1-3 show one embodiment of the present invention substantially.As shown in Figure 1, casing main body 1 is formed by connecting by fastening piece by front housing 3 and rear housing 4, this front housing 3 and this rear housing 4 can be made by metallic material or composite material, wherein, this metallic material can be steel, aluminium, titanium, aluminum alloy or titanium alloy etc., and this composite material can be polymer matrix composites.
As shown in Figure 2, in holding cavity, the annular that casing main body 1 limits has annular sound-absorbing part.More specifically, this annular sound-absorbing part has cellular structure 6,7, and more preferably, this cellular structure 6,7 is made by metallic material.Cellular structure 6 outsides and the above-mentioned outside inwall that holds cavity have a plurality of substantially with the isolated circumferential recess of identical axial spacing to weld together such as argon arc welding on the inboard; Cellular structure 7 inboards to weld together such as argon arc welding, also have a plurality of substantially with the isolated circumferential recess of identical axial spacing with the above-mentioned inboard inwall that holds cavity on the outside.Wherein, be separated with predetermined radial distance between between the outside of the inboard of cellular structure 6 and cellular structure 7, groove on groove on cellular structure 6 and cellular structure 7 is corresponding one by one, that is, groove on cellular structure 6 and a groove on cellular structure 7 have formed at the long-pending larger peripheral groove of the axial upper section of Runner assembly.Further, annular sound-absorbing part also comprises thin outer ring sealing plate 8 and thin interior annular seal plate 9, and wherein, outer ring sealing plate 8 and interior annular seal plate 9 are made by metallic material such as aluminum or aluminum alloy.The shape of outer ring sealing plate 8 is consistent with the shape of the inboard of cellular structure 6, and to be welded on the inboard of cellular structure 6 such as argon arc welding; Simultaneously, the shape of interior annular seal plate 9 is consistent with the shape in the outside of cellular structure 7, and to be welded on the outside of cellular structure 7 such as argon arc welding.Like this, outer ring sealing plate 8 and interior annular seal plate 9 is just respectively with the hollow space on cellular structure 6,7 (this hollow space is hollow six cylinders in the present invention, yet, not shown) sealing.Because the shape of thin outer ring sealing plate 8 and interior annular seal plate 9 is mutually adaptive with the shape in the outside of the inboard of cellular structure 6 and cellular structure 7 respectively, and be spaced apart diametrically between outer ring sealing plate 8 and interior annular seal plate 9, therefore, just formed outside a plurality of circumferential accommodating chambers 10 between annular seal plate 8 and interior annular seal plate 9, and be interconnected in the axial direction between these a plurality of accommodating chambers 10.As shown in Figure 3, outer ring sealing plate 8 and interior annular seal plate 9 13 are welded to each other with front end 14 places and are in the same place in the rear end, simultaneously, interior annular seal plate 9 welds together with rear housing 4 and front housing 3 respectively at part 16 places of the part 15 of adjacent back end 13 and adjacent front end 14.In each of this a plurality of accommodating chambers 10, reinforcing fiber is to be filled in wherein such as the mode that is wound around, and this reinforcing fiber is preferably aromatic polyamide fiber, and selectively, this aromatic polyamide fiber is preferably Kevlar (Kevlar) fiber.After having filled reinforcing fiber in accommodating chamber 10, the STF that reinjects (Shear Thickening Fluid is called for short STF) makes this liquid be full of whole accommodating chamber 10 and immersion fiber wherein.
In addition, casing main body 1 also is provided with easy mill layer 12 at the blade tip place near fan blade 2, and it is used for reducing blade tip and weares and teares, because this belongs to the state of the art, therefore do not repeat them here.
STF (Shear Thickening Fluid is called for short STF) is a kind of novel intelligent material, is the nano particle solvent of solid-liquid admixture, and liquid is as dispersion medium, and nano particle is as dispersed phase.When STF penetrates in reinforcing fiber, usually under state, it is to exist with liquid form, but, in case fabric is subject to impacting, compressing, the viscosity of this STF can increase sharply after being subject to the high speed impact effect, even become hard solid, make fabric more tough, be difficult to be penetrated.Therefore, can disperse the energy of percussion, have high shock resistance; After percussion disappears, can again become liquid condition again.In preferrred embodiment of the present invention, the main body of this STF is polyvinyl alcohol, contains the hard nanometer level silica gel particle of a large amount of suspensions in this polyvinyl alcohol.
Those skilled in the art should be appreciated that in another embodiment of the present invention, and annular sound-absorbing part can be the combination that only has the outer ring sealing plate 8 of cellular structure 6 and sealing cellular structure 6.Like this, the outside of cellular structure 6 is connected in the mode such as argon arc welding and holds on the outside inwall of cavity away from blade-side, then, reinforcing fiber and STF are riddled the inboard of outer ring sealing plate 8 and holding in the space that the inboard inwall of cavity limits.
Those skilled in the art should be appreciated that in other mode of executions of the present invention, and annular sound-absorbing part can also be the combination that only has the interior annular seal plate 9 of cellular structure 7 and sealing cellular structure 7.Like this, the inboard of cellular structure 7 is connected in the mode such as argon arc welding and holds cavity near on the inboard inwall of blade-side, then, reinforcing fiber and STF riddled the outside of interior annular seal plate 9 and hold in the space that the outside inwall of cavity limits.
Those skilled in the art also should be appreciated that, above-mentioned cellular structure 6,7 and corresponding outer ring sealing plate 8, interior annular seal plate 9 can be all other shapes a plurality of circumferential recess of having that present in figure, can be even substantially flat.
Be further appreciated that cellular structure 6,7 mainly plays the effect that absorbs noise, simultaneously, the structure of cellular structure 6, lip-deep a plurality of circumferential recess of 7 is favourable for increasing the casing rigidity; Outer ring sealing plate 8 and interior annular seal plate 9 can form the passage that holds reinforcing fiber and STF and make STF can not flow in cellular structure 6,7.
Also should be appreciated that, these situations also are fine, for example, thus the demand that does not in fact suppress noise suppresses the structure of noise in other words is arranged at the casing main body limits hold outside cavity or a part that does not consist of subsumption architecture of the present invention otherwise is set.Therefore annular sound-absorbing part must not consist of the part of subsumption architecture of the present invention, yet, consider from the integrity of structure and the convenience of manufacturing, be a kind of optionally embodiment with annular sound-absorbing part as the part of subsumption architecture of the present invention.
If come off at the engine operation process Leaf, casing can be subjected to the high speed impact from the blade 2 that comes off, under strong percussion, the viscosity of the STF in accommodating chamber 10 increases sharply, become solid phase from liquid phase at the utmost point in short time, the energy of distribution blade percussion plays the effect of containing, and the reinforcing fiber such as the kevlar fiber that soak wherein can strengthen this effect.
Those skilled in the art should be appreciated that aforesaid " casing ", " casing main body " also can be referred to as housing, is appreciated that also the reinforcing fiber and the shear thickening liquid that are arranged in casing also can be referred to as the containing filler.It is also understood that, although be described with the airplane engine casing front always, yet, this does not also mean that the present invention can not be applied to other such as on ground gas turbine equipment, as long as the leaf destruction that has because of rotation causes all devices of equipment failure and personal security risk all can use the present invention.In other words, above do not limit the present invention and only be applied to motor in aircraft.In addition, even for the motor of aircraft, the present invention also is not limited to the casing of fan blade, also can comprise the casing of high-pressure compressor and turbine.
Although foregoing description is to the present invention's detailed explanation of contrasting, these are just illustrative to the present invention, rather than limitation of the present invention, and any innovation and creation that do not exceed in connotation of the present invention all fall within the scope of protection of the present invention.
Claims (17)
1. containment means that is used for Runner assembly, it comprises:
Housing, it extends around described Runner assembly and on the axial and circumferential of described Runner assembly and forms, and limits the cavity that holds of an annular in it;
Reinforcing fiber, it is filled in the described at least a portion cavity that holds cavity;
STF, it can fluidly be full of at least a portion cavity that is filled with described reinforcing fiber and flood described reinforcing fiber.
2. containment means according to claim 1, is characterized in that, described reinforcing fiber is aromatic polyamide fiber.
3. containment means according to claim 2, is characterized in that, described aromatic polyamide fiber is kevlar fiber.
4. containment means according to claim 1, is characterized in that, described STF is the nano particle solvent that is in the solid-liquid admixture, and dispersion medium is polyvinyl alcohol, wherein is suspended with nanometer silica gel particle as dispersed phase.
5. containment means according to claim 1, it is characterized in that, described containment means also has annular sound-absorbing part, and it is arranged in and is connected described holding in cavity and with the internal surface of described housing, wherein, described at least a portion cavity is limited jointly by described annular sound-absorbing part and described housing.
6. containment means according to claim 5, it is characterized in that, described annular sound-absorbing part is connected to the described cavity that holds near on the inwall of described Runner assembly side, wherein, described at least a portion cavity is formed at described holding between the not connection side of cavity away from the inwall of described Runner assembly side and described annular sound-absorbing part.
7. containment means according to claim 5, it is characterized in that, described annular sound-absorbing part is connected to described holding on the inwall of cavity away from described Runner assembly side, wherein, described at least a portion cavity is formed at described holding between the not connection side of cavity near the inwall of described Runner assembly side and described annular sound-absorbing part.
8. containment means according to claim 5, it is characterized in that, described annular sound-absorbing part has interior cellular structure and outer cellular structure, described interior cellular structure is connected to the described cavity that holds near on the inwall of described Runner assembly side, described outer cellular structure is connected to described holding on the inwall of cavity away from described Runner assembly side, wherein, described at least a portion cavity is formed between described interior cellular structure and described outer cellular structure.
9. containment means according to claim 8, it is characterized in that, described at least a portion cavity is oppositely arranged at least one groove that has on away from described Runner assembly side near at least one groove that has on described Runner assembly side and described interior cellular structure by described outer cellular structure and forms.
10. containment means according to claim 9, it is characterized in that, be connected with respectively the interior annular seal plate consistent with its surface configuration and outer ring sealing plate on the outside of described interior cellular structure and the inboard of described outer cellular structure, so that described interior cellular structure and described outer cellular structure are sealed.
11. containment means according to claim 8, it is characterized in that, described outer cellular structure has a plurality of outer grooves near on described Runner assembly side, with described a plurality of outer grooves relatively, described interior cellular structure has a plurality of inner groovies on away from described Runner assembly side, described at least a portion cavity is formed jointly by described outer groove and described inner groovy, and the inside of described at least a portion cavity is connected.
12. containment means according to claim 5 is characterized in that, the material of described annular sound-absorbing part is aluminum or aluminum alloy.
13. containment means according to claim 1 is characterized in that, the material of described housing is steel, aluminium, titanium, aluminum alloy or titanium alloy.
14. one kind contains filler, it is arranged in the casing of motor, contains the blade fragment when rupturing for the fan blade when motor lost efficacy, and described containing filler comprises:
Reinforcing fiber, it is filled at least one annular pass in described casing;
STF, it can fluidly be full of in described annular pass and flood described reinforcing fiber.
15. containing filler according to claim 14 is characterized in that, described reinforcing fiber is aromatic polyamide fiber.
16. containing filler according to claim 15 is characterized in that, described aromatic polyamide fiber is kevlar fiber.
17. containing filler according to claim 14 is characterized in that, described STF is the nano particle solvent that is in the solid-liquid admixture, and its dispersion medium is polyvinyl alcohol, wherein is suspended with nanometer silica gel particle as dispersed phase.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110336509.XA CN103089345B (en) | 2011-10-31 | 2011-10-31 | A kind of containment means for Runner assembly |
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| CN201110336509.XA CN103089345B (en) | 2011-10-31 | 2011-10-31 | A kind of containment means for Runner assembly |
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| CN103089345A true CN103089345A (en) | 2013-05-08 |
| CN103089345B CN103089345B (en) | 2015-09-09 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108730034A (en) * | 2017-04-13 | 2018-11-02 | 通用电气公司 | Turbogenerator and for the receiving component in turbogenerator |
| CN109915415A (en) * | 2019-04-11 | 2019-06-21 | 中国航发湖南动力机械研究所 | Load compressor with subsumption architecture |
| WO2019179994A1 (en) * | 2018-03-22 | 2019-09-26 | Rolls-Royce Plc | Fan track liner |
| CN110685957A (en) * | 2018-07-06 | 2020-01-14 | 通用电气公司 | Blade containing structure |
| CN113803162A (en) * | 2020-06-16 | 2021-12-17 | 中国航发商用航空发动机有限责任公司 | Fan containing casing and aircraft engine |
| CN114263133A (en) * | 2021-12-31 | 2022-04-01 | 同济大学 | non-Newtonian material road surface deceleration strip adopting sintered muck and preparation method |
| CN114483306A (en) * | 2020-11-13 | 2022-05-13 | 中国航发商用航空发动机有限责任公司 | Fan containing casing and aircraft engine |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108730034B (en) * | 2017-04-13 | 2022-04-08 | 通用电气公司 | Turbine engine and containment assembly for use in a turbine engine |
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| CN113803162A (en) * | 2020-06-16 | 2021-12-17 | 中国航发商用航空发动机有限责任公司 | Fan containing casing and aircraft engine |
| CN113803162B (en) * | 2020-06-16 | 2023-02-28 | 中国航发商用航空发动机有限责任公司 | Fan containing casing and aircraft engine |
| CN114483306A (en) * | 2020-11-13 | 2022-05-13 | 中国航发商用航空发动机有限责任公司 | Fan containing casing and aircraft engine |
| CN114483306B (en) * | 2020-11-13 | 2023-09-01 | 中国航发商用航空发动机有限责任公司 | Fan containing casing and aeroengine |
| CN114263133A (en) * | 2021-12-31 | 2022-04-01 | 同济大学 | non-Newtonian material road surface deceleration strip adopting sintered muck and preparation method |
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| CN103089345B (en) | 2015-09-09 |
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Address after: 200241 Minhang District Lianhua Road, Shanghai, No. 3998 Patentee after: China Hangfa commercial aviation engine limited liability company Address before: 201109 Shanghai city Minhang District Hongmei Road No. 5696 Room 101 Patentee before: AVIC Commercial Aircraft Engine Co.,Ltd. |