CN113984361A - Engine case internal pressure test device - Google Patents
Engine case internal pressure test device Download PDFInfo
- Publication number
- CN113984361A CN113984361A CN202111250269.1A CN202111250269A CN113984361A CN 113984361 A CN113984361 A CN 113984361A CN 202111250269 A CN202111250269 A CN 202111250269A CN 113984361 A CN113984361 A CN 113984361A
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- engine case
- rubber cylinder
- pressure test
- rubber
- outer rubber
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- 238000012360 testing method Methods 0.000 title claims abstract description 73
- 229920001971 elastomer Polymers 0.000 claims abstract description 123
- 238000007789 sealing Methods 0.000 claims abstract description 12
- 244000043261 Hevea brasiliensis Species 0.000 claims description 16
- 229920003052 natural elastomer Polymers 0.000 claims description 16
- 229920001194 natural rubber Polymers 0.000 claims description 16
- 239000002184 metal Substances 0.000 claims description 14
- 210000001503 joint Anatomy 0.000 claims description 5
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims description 4
- 238000000034 method Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
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Classifications
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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
- G01M13/00—Testing of machine parts
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Engines (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The application belongs to engine case internal pressure test device field, concretely relates to engine case internal pressure test device includes: an outer rubber cylinder; the inner rubber cylinder is positioned in the outer rubber cylinder, the edge part of the inner rubber cylinder is connected with the edge part of the outer rubber cylinder, and an annular sealing cavity is formed between the inner rubber cylinder and the outer rubber cylinder; a plurality of air inflating valves, each air inflating valve has different apertures, connects on outer rubber tube and/or interior rubber tube, inside and annular seal chamber intercommunication to can aerify or deflate annular seal chamber.
Description
Technical Field
The application belongs to the field of pressure test devices in engine casings, and particularly relates to a pressure test device in an engine casing.
Background
The engine case is subjected to a large pressure load during working, and an engine case pressure test is designed for verifying the performance of the engine case in the aspect.
At present, when an engine casing internal pressure test is carried out, the two ends of an engine casing, through holes on the side wall of the engine casing and the butt joint part of the engine casing are sealed, a closed cavity is formed in the engine casing, then the engine casing is inflated, the loading of the pressure load of the engine casing from the inner side is realized, and after the inner side of the engine casing reaches a preset pressure, the loading is kept for a period of time, and the technical scheme has the following defects:
the engine casing is required to be sealed in a plurality of positions, large in area and different in shape, reliable sealing is difficult to achieve, and during testing, gas leaks outwards from the inside of the engine casing, so that the test failure rate is high, and the test efficiency is low.
The present application has been made in view of the above-mentioned technical drawbacks.
It should be noted that the above background disclosure is only for the purpose of assisting understanding of the inventive concept and technical solutions of the present invention, and does not necessarily belong to the prior art of the present patent application, and the above background disclosure should not be used for evaluating the novelty and inventive step of the present application without explicit evidence to suggest that the above content is already disclosed at the filing date of the present application.
Disclosure of Invention
It is an object of the present application to provide an engine case pressure test apparatus that overcomes or alleviates at least one of the technical deficiencies of the known prior art.
The technical scheme of the application is as follows:
an engine case internal pressure test device, comprising:
an outer rubber cylinder;
the inner rubber cylinder is positioned in the outer rubber cylinder, the edge part of the inner rubber cylinder is connected with the edge part of the outer rubber cylinder, and an annular sealing cavity is formed between the inner rubber cylinder and the outer rubber cylinder;
a plurality of air inflating valves, each air inflating valve has different apertures, connects on outer rubber tube and/or interior rubber tube, inside and annular seal chamber intercommunication to can aerify or deflate annular seal chamber.
According to at least one embodiment of the present application, in the above-mentioned pressure testing device in the engine casing, the outer rubber cylinder is made of HG6-407-79 type natural rubber sheet;
the inner rubber cylinder is made of HG6-407-79 type natural rubber plates.
According to at least one embodiment of the application, in the pressure test device in the engine casing, the outer rubber cylinder has a larger thickness which is not less than 2 mm;
the thickness of the inner rubber cylinder is relatively small and is not more than 1 mm.
According to at least one embodiment of the application, in the pressure test device in the engine casing, the outer wall of the outer rubber cylinder is coated with talcum powder.
According to at least one embodiment of the present application, in the above-described engine case internal pressure test device, the edge portion of the outer rubber tube and the edge portion of the inner rubber tube are integrally molded.
According to at least one embodiment of the application, in the pressure test device in the engine casing, the outer rubber cylinder is formed by a plurality of sections which are butted along the axial direction, each section has different diameter sizes, and the butted parts among the sections are bonded by the rubber connecting plate from the inner side;
the inner rubber cylinder is formed by a plurality of sections which are butted along the axial direction, each section has different diameter sizes, and the butted parts among the sections are bonded by rubber connecting plates from the outer side.
According to at least one embodiment of the present application, in the above-mentioned pressure testing device for the engine casing, the rubber connecting plate is made of natural rubber plate of HG6-407-79 type.
According to at least one embodiment of the present application, the apparatus for testing pressure in an engine casing further includes:
the metal inner lining strip is padded in the side wall of the outer rubber cylinder.
According to at least one embodiment of the application, in the engine casing internal pressure testing device, the metal lining strip is coated with the rubber layer.
According to at least one embodiment of the present application, in the above-mentioned engine casing internal pressure testing device, the rubber layer covered with the metal lining strip is made of HG6-407-79 type natural rubber plate.
Drawings
FIG. 1 is a schematic diagram of an engine casing pressure testing device provided by an embodiment of the application;
FIG. 2 is a schematic partial view of a pressure testing device in an engine casing according to an embodiment of the present disclosure;
FIG. 3 is a schematic view of another portion of a pressure testing device in an engine casing according to an embodiment of the present disclosure;
FIG. 4 is a schematic illustration of an engine case provided by an embodiment of the present application;
wherein:
1-an outer rubber cylinder; 2-inner rubber cylinder; 3-charging and discharging nozzle; 4-a rubber connecting plate; 5-a metal lining strip; 6-engine case.
For the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; further, the drawings are for illustrative purposes, and terms describing positional relationships are limited to illustrative illustrations only and are not to be construed as limiting the patent.
Detailed Description
In order to make the technical solutions and advantages of the present application clearer, the technical solutions of the present application will be further clearly and completely described in the following detailed description with reference to the accompanying drawings, and it should be understood that the specific embodiments described herein are only some of the embodiments of the present application, and are only used for explaining the present application, but not limiting the present application. It should be noted that, for convenience of description, only the parts related to the present application are shown in the drawings, other related parts may refer to general designs, and the embodiments and technical features in the embodiments in the present application may be combined with each other to obtain a new embodiment without conflict.
In addition, unless otherwise defined, technical or scientific terms used in the description of the present application shall have the ordinary meaning as understood by one of ordinary skill in the art to which the present application belongs. The terms "upper", "lower", "left", "right", "center", "vertical", "horizontal", "inner", "outer", and the like used in the description of the present application, which indicate orientations, are used only to indicate relative directions or positional relationships, and do not imply that the devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and when the absolute position of the object to be described is changed, the relative positional relationships may be changed accordingly, and thus, should not be construed as limiting the present application. The use of "first," "second," "third," and the like in the description of the present application is for descriptive purposes only to distinguish between different components and is not to be construed as indicating or implying relative importance. The use of the terms "a," "an," or "the" and similar referents in the context of describing the application is not to be construed as an absolute limitation on the number, but rather as the presence of at least one. The word "comprising" or "comprises", and the like, when used in this description, is intended to specify the presence of stated elements or items, but not the exclusion of other elements or items.
Further, it is noted that, unless expressly stated or limited otherwise, the terms "mounted," "connected," and the like are used in the description of the invention in a generic sense, e.g., connected as either a fixed connection or a removable connection or integrally connected; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, or they may be connected through the inside of two elements, and those skilled in the art can understand their specific meaning in this application according to the specific situation.
The present application is described in further detail below with reference to fig. 1 to 4.
An engine case internal pressure test device, comprising:
an outer rubber cylinder 1;
the inner rubber cylinder 2 is positioned in the outer rubber cylinder 1, the edge part of the inner rubber cylinder 2 is connected with the edge part of the outer rubber cylinder 1, and an annular sealing cavity is formed between the inner rubber cylinder 2 and the outer rubber cylinder 1;
a plurality of air inflation mouths 3 of filling, each air inflation mouth 3 has different apertures, connects on outer rubber tube 1 and/or interior rubber tube 2, inside and annular seal chamber intercommunication to can aerify or deflate annular seal chamber.
The internal pressure test device of the engine case disclosed in the above embodiment is used for carrying out the internal pressure test of the engine case, the whole device can be arranged in the engine case 5, and the inflation nozzle 3 is used for inflating the annular sealing cavity, so that the outer side of the outer rubber tube 1 is attached to the inner side of the engine case to reach the preset pressure, and the preset pressure is kept for a period of time.
For the engine case internal pressure test device disclosed in the above embodiment, as can be understood by those skilled in the art, the annular sealing cavity formed between the outward rubber tube 1 and the inward rubber tube 2 is inflated to load the pressure load of the engine case 5 from the inside, so as to perform the engine case internal pressure test, and the parts with a large number and a large area on the engine case 5 do not need to be sealed, so that the engine case internal pressure test device has high test efficiency and high test success rate.
For the engine case internal pressure test device disclosed in the above embodiment, it can be understood by those skilled in the art that, when the engine case internal pressure test is performed, only the air is filled into the annular sealing cavity formed between the outer rubber tube 1 and the inner rubber tube 2, the whole internal space of the engine case 5 does not need to be filled with the air, the required air filling amount is small, the efficiency is high, and the resources can be saved.
To the pressure test device in the engine case disclosed in the above embodiment, it can be understood by those skilled in the art that when the annular sealing cavity formed between the outer rubber tube 1 and the inner rubber tube 2 is inflated, the inflation/deflation nozzles 3 with different apertures can be selected, the inflation/deflation nozzle 3 with a relatively large aperture can realize rapid inflation/deflation in the annular sealing cavity, the inflation/deflation amount in the annular sealing cavity is controlled more accurately by the inflation/deflation nozzle 3 with a relatively small aperture, and further the pressure applied to the inner side of the engine case 5 can be accurately controlled, so as to ensure the high efficiency and accuracy of the test.
For the engine case internal pressure test device disclosed in the above embodiment, it can be understood by those skilled in the art that, when the engine case internal pressure test is performed, in order to ensure the high efficiency, effectiveness and accuracy of the test, the diameter of the outer rubber tube 1 should be designed to be as consistent as possible with the diameter of the engine case 5, the diameter of the inner rubber tube 2 is slightly smaller than the diameter of the outer rubber tube 1, and the axial dimensions of the outer rubber tube 1 and the inner rubber tube 2 are slightly larger than the axial dimension of the engine case 6.
In some optional embodiments, in the above-mentioned pressure testing device in the engine casing, the outer rubber cylinder 1 is made of natural rubber plates of HG6-407-79 type;
the inner rubber cylinder 2 is made of HG6-407-79 type natural rubber plates.
For the engine case internal pressure test device disclosed in the above embodiment, those skilled in the art can understand that the HG6-407-79 type natural rubber plate is soft, the elongation rate can reach 641% -703%, the outer rubber cylinder 1 and the inner rubber cylinder 2 made of the HG6-407-79 type natural rubber plate have large deformability, and the HG 8979 type natural rubber plate is inflated into the annular sealing cavity, so that the outer rubber cylinder 1 can reliably and effectively abut against the wall of the engine case 6, and the effective application of the pressure load in the engine case 6 is ensured, and in addition, the HG6-407-79 type natural rubber plate has good oil resistance, and can well adapt to the test environment.
In some alternative embodiments, in the above-mentioned pressure test device in the engine casing, the outer rubber tube 1 has a larger thickness, which is not less than 2 mm;
the thickness of the inner rubber cylinder 2 is relatively small and is not more than 1 mm.
With regard to the internal pressure test device of the engine case disclosed in the above embodiments, it can be understood by those skilled in the art that, during the internal pressure test of the engine case, the outer rubber tube 1 contacts with the inner wall of the engine case 6, and the outer rubber tube 1 is designed to have a larger thickness, so that during the test, the outer rubber tube 1 and the inner wall of the engine case 6 are prevented from being damaged by friction or being pierced by the protruding part of the inner wall of the engine case 6.
With regard to the engine case internal pressure test device disclosed in the above embodiment, it can be understood by those skilled in the art that, during the engine case internal pressure test, the inner rubber tube 2 does not contact with the inner wall of the engine case 6, and there is no danger of friction damage with the inner wall of the engine case 6 or damage caused by piercing of a protruding portion of the inner wall of the engine case 6, and the inner rubber tube 2 is designed to have a relatively small thickness, so that the mass of the whole device can be reduced.
In some alternative embodiments, in the above-mentioned pressure test device in the engine casing, the outer wall of the outer rubber cylinder 1 is coated with talc powder.
For the engine case internal pressure test device disclosed in the above embodiment, as can be understood by those skilled in the art, the talc powder is coated on the outer wall of the outer rubber tube 1, so that the friction between the inner walls of the outer rubber tube 1 and the engine case 6 can be reduced during the engine case internal pressure test, on one hand, the friction damage between the outer rubber tube 1 and the inner wall of the engine case 6 can be further avoided, on the other hand, the resistance of the inner wall of the engine case 6 to the deformation of the outer rubber tube 1 can be reduced, the generation of a large additional stress is avoided, and the accurate and effective application of the pressure load in the engine case 6 is ensured.
In some alternative embodiments, in the above-mentioned engine casing internal pressure testing device, the edge portion of the outer rubber tube 1 and the edge portion of the inner rubber tube 2 are further designed to be integrally formed under the condition that the process technology condition allows.
In some optional embodiments, in the above-mentioned pressure test device in the engine casing, the outer rubber tube 1 is formed by multiple segments in butt joint along the axial direction, each segment has a different diameter size, and the butt joint part between each segment is bonded from the inside by the rubber connecting plate 4, as shown in fig. 2, under the condition that the process conditions allow, the outer rubber tube 1 of each segment can also be designed to be integrally formed to ensure the air tightness there;
the inner rubber tube 2 is formed by multiple sections which are butted along the axial direction, each section has different diameter sizes, the butted parts among the sections are bonded by rubber connecting plates 4 from the outer side, and concretely, the understanding can be realized by referring to fig. 2, and under the condition that the process condition allows, the inner rubber tube 2 among the sections can also be designed to be integrally formed, so that the air tightness of the positions can be ensured.
For the internal pressure test device of the engine case disclosed in the above embodiment, it can be understood by those skilled in the art that the diameter size of the internal of the engine case 6 along the axial direction changes, and the outer rubber cylinder 1 and the inner rubber cylinder 2 are designed to be formed by butt-jointing a plurality of sections with different direct sizes along the axial direction, and can be adapted to the diameter sizes of all parts of the internal of the engine case 6 along the axial direction, so that the outer rubber cylinder 1 and the inner rubber cylinder 2 can cooperatively deform under the action of inflation during the internal pressure test of the engine case, and the outer rubber cylinder 1 can be quickly and effectively attached to the inner wall of the engine case 6, thereby ensuring the reliable and accurate application of the pressure load in the engine case 6.
According to at least one embodiment of the present application, the rubber connecting plate 4 of the above-mentioned engine casing internal pressure testing device is made of HG6-407-79 type natural rubber, and the reasons for this design and the technical effects that can be achieved can be understood with reference to the above description of the present application, and will not be explained or explained in more detail herein.
In some optional embodiments, the pressure testing apparatus in an engine casing further includes:
and a metal inner lining strip 5 is padded in the side wall of the outer rubber cylinder 1, as shown in figure 3.
As for the internal pressure test device of the engine case disclosed in the above embodiment, it can be understood by those skilled in the art that, considering the limitations in terms of processing and assembly, the engine case 5 is not an integral structure, but is mostly composed of two halves butted in the radial direction and/or a plurality of segments butted in the axial direction, and a gap inevitably exists at the butted portion, as shown in fig. 4, when the internal pressure test of the engine case is performed, the corresponding portion on the outer rubber tube 1 is easily extruded into the gap and damaged by extrusion, and the metal inner liner 5 is additionally padded at the corresponding portion designed in the sidewall of the outer rubber tube 1, so as to increase the rigidity of the corresponding portion on the outer rubber tube 1, avoid being extruded into the gap and damaged by extrusion, and ensure the smooth completion of the test, and in addition, the metal inner liner 5 has a certain flexibility and a certain deformation capability, and can be organically combined with the outer rubber tube 1 when padded in the sidewall of the outer rubber tube 1, the combination is reliable.
In some alternative embodiments, in the above-mentioned engine casing internal pressure testing device, the metal lining strip 5 is coated with a rubber layer.
With regard to the pressure test device in the engine casing disclosed in the above embodiment, it can be understood by those skilled in the art that the metal inner liner 5 is covered with the rubber layer, so as to prevent the metal inner liner 5 from directly contacting the outer rubber cylinder 1 to damage the outer rubber cylinder 1.
In some alternative embodiments, the rubber layer covered by the metal inner liner 5 is made of natural rubber plate HG 6-407-79.
The embodiments are described in a progressive manner in the specification, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
Having thus described the present application in connection with the preferred embodiments illustrated in the accompanying drawings, it will be understood by those skilled in the art that the scope of the present application is not limited to those specific embodiments, and that equivalent modifications or substitutions of related technical features may be made by those skilled in the art without departing from the principle of the present application, and those modifications or substitutions will fall within the scope of the present application.
Claims (10)
1. An engine case internal pressure test device is characterized by comprising:
an outer rubber cylinder (1);
the inner rubber cylinder (2) is positioned in the outer rubber cylinder (1), the edge part of the inner rubber cylinder (2) is connected with the edge part of the outer rubber cylinder (1), and an annular sealing cavity is formed between the inner rubber cylinder (2) and the outer rubber cylinder (1);
a plurality of fill air cock (3), each fill air cock (3) and have different apertures, connect on outer rubber tube (1) and/or interior rubber tube (2), inside with the annular seal chamber intercommunication is in order to can be right the annular seal chamber is aerifyd or is deflated.
2. The engine case pressure test apparatus according to claim 1,
the outer rubber cylinder (1) is made of HG6-407-79 type natural rubber plates;
the inner rubber cylinder (2) is made of HG6-407-79 type natural rubber plates.
3. The engine case pressure test apparatus according to claim 1,
the outer rubber cylinder (1) has larger thickness which is not less than 2 mm;
the thickness of the inner rubber cylinder (2) is relatively small and is not more than 1 mm.
4. The engine case pressure test apparatus according to claim 1,
the outer wall of the outer rubber cylinder (1) is coated with talcum powder.
5. The engine case pressure test apparatus according to claim 1,
the edge part of the outer rubber tube (1) and the edge part of the inner rubber tube (2) are integrally formed.
6. The engine case pressure test apparatus according to claim 1,
the outer rubber cylinder (1) is formed by axially butting a plurality of sections, each section has different diameter sizes, and the butting parts among the sections are bonded from the inner side by a rubber connecting plate (4);
the inner rubber cylinder (2) is formed by a plurality of sections which are in butt joint along the axial direction, each section has different diameter sizes, and the butt joint parts among the sections are bonded from the outer side by rubber connecting plates (4).
7. The engine case pressure test apparatus according to claim 6,
the rubber connecting plate (4) is made of HG6-407-79 type natural rubber plates.
8. The engine case pressure test apparatus according to claim 1,
further comprising:
and the metal inner lining strip (5) is padded in the side wall of the outer rubber cylinder (1).
9. The engine case pressure test apparatus according to claim 8,
the outer layer of the metal lining strip (5) is coated with a rubber layer.
10. The engine case pressure test apparatus according to claim 9,
the rubber layer coated on the outer layer of the metal lining strip (5) is made of HG6-407-79 type natural rubber plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111250269.1A CN113984361B (en) | 2021-10-26 | 2021-10-26 | Engine casing internal pressure test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111250269.1A CN113984361B (en) | 2021-10-26 | 2021-10-26 | Engine casing internal pressure test device |
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| Publication Number | Publication Date |
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| CN113984361A true CN113984361A (en) | 2022-01-28 |
| CN113984361B CN113984361B (en) | 2024-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111250269.1A Active CN113984361B (en) | 2021-10-26 | 2021-10-26 | Engine casing internal pressure test device |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8612720D0 (en) * | 1985-07-10 | 1986-07-02 | Brotherton Eng Ltd | Pressure testing components |
| RU2242739C2 (en) * | 2003-01-21 | 2004-12-20 | Государственное образовательное учреждение высшего профессионального образования Тюменский государственный нефтегазовый университет | Method and device for testing shells |
| US20140202256A1 (en) * | 2013-01-23 | 2014-07-24 | Lawrence Livermore National Security, Llc | Systems and methods for determining strength of cylindrical structures by internal pressure loading |
| CN104297068A (en) * | 2014-10-14 | 2015-01-21 | 北京强度环境研究所 | Soft airbag for loading inner pressure on inner wall of cylinder |
| KR20150114192A (en) * | 2014-04-01 | 2015-10-12 | 주식회사 우경테크 | Test apparatus for pressure resistance performance and its manufacturing method for rubber expansion joints |
| CN105547702A (en) * | 2015-12-10 | 2016-05-04 | 中国飞机强度研究所 | High-temperature and high-voltage testing device for engine case |
| CN107121342A (en) * | 2017-04-12 | 2017-09-01 | 西南交通大学 | A kind of interior Water hydraulic static pressure loading device for water tunnel structural model test |
| CN107505205A (en) * | 2017-08-10 | 2017-12-22 | 山东建筑大学 | Simulate the flexible loading device and method of cylinder anchorage model surface uniform stress |
| CN209296476U (en) * | 2018-12-14 | 2019-08-23 | 中国航发沈阳发动机研究所 | Contain casing experiment loading unit outside engine |
| CN112504684A (en) * | 2020-12-16 | 2021-03-16 | 天津航天瑞莱科技有限公司 | Static, thermal and internal pressure load test device for culvert casing |
-
2021
- 2021-10-26 CN CN202111250269.1A patent/CN113984361B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8612720D0 (en) * | 1985-07-10 | 1986-07-02 | Brotherton Eng Ltd | Pressure testing components |
| RU2242739C2 (en) * | 2003-01-21 | 2004-12-20 | Государственное образовательное учреждение высшего профессионального образования Тюменский государственный нефтегазовый университет | Method and device for testing shells |
| US20140202256A1 (en) * | 2013-01-23 | 2014-07-24 | Lawrence Livermore National Security, Llc | Systems and methods for determining strength of cylindrical structures by internal pressure loading |
| KR20150114192A (en) * | 2014-04-01 | 2015-10-12 | 주식회사 우경테크 | Test apparatus for pressure resistance performance and its manufacturing method for rubber expansion joints |
| CN104297068A (en) * | 2014-10-14 | 2015-01-21 | 北京强度环境研究所 | Soft airbag for loading inner pressure on inner wall of cylinder |
| CN105547702A (en) * | 2015-12-10 | 2016-05-04 | 中国飞机强度研究所 | High-temperature and high-voltage testing device for engine case |
| CN107121342A (en) * | 2017-04-12 | 2017-09-01 | 西南交通大学 | A kind of interior Water hydraulic static pressure loading device for water tunnel structural model test |
| CN107505205A (en) * | 2017-08-10 | 2017-12-22 | 山东建筑大学 | Simulate the flexible loading device and method of cylinder anchorage model surface uniform stress |
| CN209296476U (en) * | 2018-12-14 | 2019-08-23 | 中国航发沈阳发动机研究所 | Contain casing experiment loading unit outside engine |
| CN112504684A (en) * | 2020-12-16 | 2021-03-16 | 天津航天瑞莱科技有限公司 | Static, thermal and internal pressure load test device for culvert casing |
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| Publication number | Publication date |
|---|---|
| CN113984361B (en) | 2024-04-16 |
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