Water-cooled waveguide rod for large-deformation structure in ultra-high-temperature environment

Abstract

The invention belongs to the field of thermal strength tests, and particularly relates to a water-cooled waveguide rod for a large-deformation structure in an ultra-high-temperature environment. The water-cooled waveguide rod is characterized in that a through mounting hole is formed in a supporting molded surface; the linear bearing is fixedly mounted in a mounting hole of the supporting molded surface; the front end of the shape-maintaining shell is fixedly connected with the supporting profile, a limiting ring is arranged at the front end of the shape-maintaining shell, and an opening is formed in the rear end of the shape-maintaining shell. The limiting clamping ring is arranged in the shape-maintaining shell, the limiting clamping ring comprises a connecting interface, a limiting clamping plate and a channel penetrating through the connecting interface and the limiting clamping plate, and the limiting clamping plate can be limited by the limiting ring at the front end of the shape-maintaining shell; the wave guide rod comprises a wave guide section, a cooling section, a mounting section and a deformation coordination section which are connected in sequence; the spring is arranged in the shape-maintaining shell, and the front end of the spring abuts against the limiting clamping plate. The end cover is connected with the rear end of the shape-maintaining shell, and the end cover abuts against the rear end of the spring. According to the invention, large-deformation structure damage signal conduction in an ultrahigh-temperature environment can be realized.

Description

Technical Field

[0001] The present application belongs to the field of thermal strength testing, and in particular relates to a water-cooled waveguide rod for large deformation structures in ultra-high temperature environments. Background Art

[0002] Thermal strength test is one of the important links in the development process of hypersonic aircraft. Through ground thermal strength test, the full flight process of hypersonic aircraft can be simulated on the ground in advance to expose the defects in the structural design process. During the thermal strength test, the temperature at the test site can reach more than 1000℃, and the damage monitoring technology of test pieces in normal temperature environment cannot be applied in thermal strength test.

[0003] Acoustic emission is a physical phenomenon in which an object rapidly releases energy and generates transient elastic waves. The generation of acoustic emission is closely related to the internal damage of the material, so the change of the acoustic emission signal can reflect the damage process of the material and play a role in detecting and predicting material damage. However, due to the maximum operating temperature of the sensor and coupling agent, acoustic emission technology has not been able to play a role in thermal strength testing.

[0004] Therefore, it is desired to have a technical solution to overcome or at least alleviate at least one of the above-mentioned defects of the prior art. Summary of the invention

[0005] The purpose of the present application is to provide a water-cooled waveguide rod with a large deformation structure for use in an ultra-high temperature environment, so as to solve at least one problem existing in the prior art.

[0006] The technical solution of this application is:

[0007] A water-cooled waveguide rod for a large deformation structure in an ultra-high temperature environment, comprising:

[0008] A supporting profile, wherein the supporting profile is provided with a penetrating mounting hole;

[0009] A linear bearing, the linear bearing being fixedly mounted in a mounting hole of the supporting profile;

[0010] A dimensional shell, the front end of which is fixedly connected to the supporting surface, the front end of which is provided with a limiting ring, and the rear end of which is provided with an opening;

[0011] A limiting snap ring, the limiting snap ring is arranged in the dimensional shell, the limiting snap ring comprises a connection interface, a limiting clamping plate, and a channel running through the connection interface and the limiting clamping plate, and the limiting clamping plate can be limited by the limiting ring at the front end of the dimensional shell;

[0012] The waveguide rod comprises a waveguide section, a cooling section, a mounting section and a deformation coordination section connected in sequence, wherein:

[0013] The front end of the waveguide section is in contact with and connected to the structure to be tested;

[0014] The cooling section is provided with a cooling passage;

[0015] The installation section is provided with an installation area, and the acoustic emission sensor is pasted on the installation area;

[0016] The deformation coordination section is a hollow smooth straight rod structure, and the deformation coordination section passes through the linear bearing and is connected to the connection interface;

[0017] A spring, wherein the spring is arranged in the dimensional housing, and the front end of the spring abuts against the limit clamping plate;

[0018] An end cover is connected to the rear end of the dimensional shell, and the end cover abuts against the rear end of the spring.

[0019] In at least one embodiment of the present application, the cooling passage of the cooling section is perpendicular to the axis of the waveguide rod, and a cooling medium quick connector is provided on the cooling passage.

[0020] In at least one embodiment of the present application, the installation area of ​​the installation section is provided with an acoustic emission sensor pasting platform and an unloading channel.

[0021] In at least one embodiment of the present application, the waveguide rod is integrally machined from stainless steel material.

[0022] In at least one embodiment of the present application, a docking interface is provided on the supporting surface, and the docking interface is used to connect with an external structure.

[0023] In at least one embodiment of the present application, the supporting surface, the limiting clamp ring, the dimensional shell, and the end cover are all made of aluminum alloy.

[0024] In at least one embodiment of the present application, the end cover includes a base and a dimensional rod, the base is installed at the opening of the rear end of the dimensional shell, and the base abuts the rear end of the spring, and the dimensional rod passes through the spring and is inserted into the channel.

[0025] The invention has at least the following beneficial technical effects:

[0026] The water-cooled waveguide rod for large deformation structures in ultra-high temperature environments of the present application can realize damage signal transmission of large deformation structures in ultra-high temperature environments, and in conjunction with an acoustic emission system, can meet the full-time domain damage monitoring of large deformation structures in ultra-high temperature environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is an overall schematic diagram of a water-cooled waveguide rod for a large deformation structure in an ultra-high temperature environment according to an embodiment of the present application;

[0028] Figure 2 This is an exploded view of a water-cooled waveguide rod for a large deformation structure in an ultra-high temperature environment according to an embodiment of the present application;

[0029] Figure 3 is a schematic diagram of a waveguide rod according to an embodiment of the present application;

[0030] Figure 4 is a schematic diagram of a limit clamp ring in one embodiment of the present application;

[0031] Figure 5 It is a schematic diagram of an end cover of an embodiment of the present application.

[0032] in:

[0033] 1- waveguide rod; 11- waveguide section; 12- cooling section; 13- installation section; 14- deformation coordination section; 2- support profile; 3- linear bearing; 4- limit clamp ring; 41- connection interface; 42- limit clamp plate; 43- channel; 5- dimensional housing; 6- spring; 7- end cover; 71- base; 72- dimensional rod. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical scheme and advantages of the implementation of this application clearer, the technical scheme in the embodiment of this application will be described in more detail below in conjunction with the drawings in the embodiment of this application. In the drawings, the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The described embodiments are part of the embodiments of this application, not all of them. The embodiments described below with reference to the drawings are exemplary and are intended to be used to explain this application, and should not be construed as limitations on this application. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application. The embodiments of this application are described in detail below in conjunction with the drawings.

[0035] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the scope of protection of the present application.

[0036] The following is combined with Figures 1 to 5 This application is described in further detail.

[0037] The present application provides a water-cooled waveguide rod for a large deformation structure in an ultra-high temperature environment, comprising: a supporting surface 2, a linear bearing 3, a dimensional shell 5, a limiting clamp 4, a waveguide rod 1, a spring 6 and an end cover 7.

[0038] Specifically, Figure 1 As shown, a through mounting hole is opened on the supporting surface 2, and the linear bearing 3 is a common linear bearing on the market, which is fixedly installed in the mounting hole of the supporting surface 2. The dimensional shell 5 is cylindrical, and its front end is fixedly connected to the supporting surface 2. A limiting ring is arranged at the front end of the dimensional shell 5, and an opening is arranged at the rear end; a limiting clamping ring 4 is arranged in the dimensional shell 5, and the limiting clamping ring 4 includes a connecting interface 41, a limiting clamping plate 42, and a channel 43 passing through the connecting interface 41 and the limiting clamping plate 42, the connecting interface 41 is used to provide an interface for connecting with the waveguide rod 1, and the limiting clamping plate 42 is installed in the dimensional shell 5, and can be limited by the limiting ring at the front end of the dimensional shell 5.

[0039] In a preferred embodiment of the present application, a docking interface is provided on the support profile 2, and the docking interface is used to connect with an external structure. The support profile 2 provides a docking interface between the water-cooled waveguide rod and the external structure, so as to realize the installation and fixation of the water-cooled waveguide rod. In this embodiment, the support profile 2, the limit clamp 4, and the dimensional shell 5 are preferably made of aluminum alloy.

[0040] Furthermore, the waveguide rod 1 is divided into four functional areas, including a waveguide section 11, a cooling section 12, a mounting section 13 and a deformation coordination section 14 which are connected in sequence, wherein the waveguide section 11 is a direct conduction path for the damage signal, and the front end of the waveguide section 11 is in direct contact and connection with the structure to be measured; the cooling section 12 is provided with a cooling passage, into which a flowing cooling medium can be introduced to achieve an overall cooling effect; the mounting section 13 is provided with an mounting area, in which an acoustic emission sensor is pasted; the deformation coordination section 14 is a hollow smooth straight rod structure, and the deformation coordination section 14 is connected to the connection interface 41 through the linear bearing 3, and the axial movement displacement of the waveguide rod 1 can be achieved through the linear bearing 3 and the limit clamp 4, meeting the use requirements of large deformation structures.

[0041] In a preferred embodiment of the present application, Figure 2As shown, the cooling passage of the cooling section 12 is perpendicular to the axis of the waveguide rod 1, and a cooling medium quick connector is provided on the cooling passage, through which the cooling medium is introduced, and the cooling medium can be cooling water. In this embodiment, the installation area of ​​the installation section 13 is provided with an acoustic emission sensor pasting platform and an unloading channel, and the unloading channel is a through hole opened on the installation section 13, and the through hole is connected to the acoustic emission sensor pasting platform. When the acoustic emission sensor is disassembled, the unloading rod passes through the through hole on the installation section 13 to apply a force toward the opening direction of the pasting platform to the acoustic emission sensor, so as to realize the disassembly of the acoustic emission sensor. The waveguide rod 1 is preferably made of stainless steel material as a whole, and the conduction of the internal damage signal of the structure is realized through the waveguide rod 1, the use requirements of the ultra-high temperature environment are met through the water cooling channel, and the use conditions of the large deformation structure are met through the deformation coordination section 14.

[0042] In addition, the spring 6 is a commonly used cylindrical compression spring on the market, which is arranged in the dimensional housing 5, and the front end of the spring 6 abuts against the limit clamping plate 42; the end cover 7 is connected to the rear end of the dimensional housing 5, and the end cover 7 abuts against the rear end of the spring 6, and the end cover 7 is preferably made of aluminum alloy. Figure 4 As shown, the end cover 7 includes a base 71 and a dimensional rod 72. The base 71 is installed at the opening of the rear end of the dimensional housing 5, and the base 71 abuts against the rear end of the spring 6. The dimensional rod 72 passes through the spring 6 and is inserted into the channel 43. The movement of the dimensional rod 72 in the end cover 7 is realized through the channel 43. The dimensional rod 72 is used to ensure that the spring 6 only undergoes axial deformation. Through the expansion and contraction of the spring 6, the water-cooled waveguide rod is in close contact with the structure to be measured. Through the structural design of the end cover 7, the extreme movement displacement and deformation direction of the spring 6 are limited.

[0043] The water-cooled waveguide rod for large deformation structures in ultra-high temperature environments of the present application transmits the structural damage signal from the part to be tested of the test piece to the outside of the thermal field through the waveguide rod 1. A cooling channel is designed inside the waveguide rod 1 to ensure the normal operation of the waveguide rod 1 in an ultra-high temperature environment; the rear end of the waveguide rod 1 is a deformation coordination section 14, which passes through a linear bearing 3 and is connected to a limit clamp 4; the linear bearing 3 is fixed on a supporting profile 2, and the supporting profile 2 provides an external docking interface for the water-cooled waveguide rod; the limit clamp 4 and the spring 6 at the upper end are sealed together in a dimensional shell 5, and are sealed and dimensionalized by an end cover 7. The present application can transmit the damage signal of a large deformation structure in an ultra-high temperature environment to the outside of the thermal field, and can realize the full-time domain health monitoring of a large deformation structure in an ultra-high temperature environment in a thermal strength test in conjunction with an acoustic emission system.

[0044] The water-cooled waveguide rod for large deformation structures in ultra-high temperature environments of the present application, when assembled, connects the dimensional shell 5 with the supporting profile 2 by welding; installs the linear bearing 3 into the supporting profile 2; passes the waveguide rod 1 through the linear bearing 3 and connects it with the limit clamp 4; installs the spring 6 into the dimensional shell 5; passes the dimensional rod 72 of the end cover 7 through the spring 6, and the end cover 7 is connected to the dimensional shell 5; and tests the motion mechanism of the water-cooled waveguide rod. When used in conjunction with the acoustic emission system, the acoustic emission sensor is pasted on the acoustic emission sensor pasting platform of the waveguide rod 1; the cooling medium quick connector is installed on the cooling channel of the cooling section 12; the installation position of the water-cooled waveguide rod is determined, and a certain amount of deformation is given to the spring 6; it is connected and fixed to the structure outside the thermal field through the external docking interface on the supporting profile 2; the cooling pipeline is connected to the cooling medium quick connector; the cooling medium is introduced; the acoustic emission system is connected; the full-time domain acoustic emission signal is monitored; and the acoustic emission sensor is removed after the test is completed.

[0045] The water-cooled waveguide rod for large deformation structures in ultra-high temperature environments of this application integrates the waveguide system structure, water cooling structure, support structure, and deformation self-coordination structure, and can realize the transmission of structural acoustic emission signals under large deformation conditions in ultra-high temperature environments. This application breaks the technical barriers between ultra-high temperature environments and acoustic emission monitoring, solves the problem that the internal structural damage state of the test piece cannot be monitored during thermal strength tests, greatly expands the boundaries of thermal strength tests, and successfully couples acoustic emission structural health monitoring technology with thermal strength test technology.

[0046] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A water-cooled waveguide rod for large deformation structures in ultra-high temperature environments, characterized in that: include: A supporting profile (2), wherein the supporting profile (2) is provided with a penetrating mounting hole; A linear bearing (3), wherein the linear bearing (3) is fixedly mounted in a mounting hole of the supporting profile (2); A dimensional shell (5), the front end of the dimensional shell (5) being fixedly connected to the supporting profile (2), the front end of the dimensional shell (5) being provided with a limiting ring, and the rear end being provided with an opening; A limiting snap ring (4), the limiting snap ring (4) being arranged in the dimensional shell (5), the limiting snap ring (4) comprising a connection interface (41), a limiting clamping plate (42), and a channel (43) passing through the connection interface (41) and the limiting clamping plate (42), the limiting clamping plate (42) being capable of being limited by the limiting ring at the front end of the dimensional shell (5); A waveguide probe (1), the waveguide probe (1) comprising a waveguide section (11), a cooling section (12), a mounting section (13) and a deformation coordination section (14) connected in sequence, wherein: The front end of the waveguide section (11) is in contact with and connected to the structure to be tested; The cooling section (12) is provided with a cooling passage; The installation section (13) is provided with an installation area, and an acoustic emission sensor is pasted in the installation area; The deformation coordination section (14) is a hollow smooth straight rod structure, and the deformation coordination section (14) passes through the linear bearing (3) and is connected to the connection interface (41); A spring (6), wherein the spring (6) is arranged in the dimensional housing (5), and the front end of the spring (6) abuts against the limiting clamping plate (42); An end cover (7), wherein the end cover (7) is connected to the rear end of the dimensional shell (5), and the end cover (7) abuts against the rear end of the spring (6).

2. The water-cooled waveguide rod for large deformation structure in ultra-high temperature environment according to claim 1, characterized in that: The cooling passage of the cooling section (12) is perpendicular to the axis of the waveguide rod (1), and a cooling medium quick connector is provided on the cooling passage.

3. The water-cooled waveguide rod for large deformation structure in ultra-high temperature environment according to claim 2, characterized in that: The installation area of ​​the installation section (13) is provided with an acoustic emission sensor pasting platform and an unloading channel.

4. The water-cooled waveguide rod for large deformation structure in ultra-high temperature environment according to claim 1, characterized in that: The waveguide rod (1) is integrally machined from stainless steel material.

5. The water-cooled waveguide rod for large deformation structure in ultra-high temperature environment according to claim 1, characterized in that: The supporting profile (2) is provided with a docking interface, and the docking interface is used to connect with an external structure.

6. The water-cooled waveguide rod for large deformation structure in ultra-high temperature environment according to claim 1, characterized in that: The supporting profile (2), the limiting clamp ring (4), the dimensional shell (5), and the end cover (7) are all made of aluminum alloy.

7. The water-cooled waveguide rod for large deformation structure in ultra-high temperature environment according to claim 1, characterized in that: The end cover (7) comprises a base (71) and a dimensional rod (72); the base (71) is installed at the opening at the rear end of the dimensional shell (5), and the base (71) abuts against the rear end of the spring (6); the dimensional rod (72) passes through the spring (6) and is inserted into the channel (43).

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