A distributed pressure loading test device

Abstract

The present application belongs to the technical field of pressurization test, and particularly relates to a distributed pressure loading test device. It comprises: a bottom plate, comprising two, the bottom plates are circular, and the two bottom plates are arranged in parallel; a side plate, comprising a plurality of, the plurality of side plates are respectively installed between the two bottom plates, and the space between the two bottom plates is divided into a plurality of fan-shaped cavities; an airbag, comprising a plurality of, the plurality of airbags are respectively installed in the corresponding fan-shaped cavities; a test piece, in the shape of a cylinder, and the test piece is sleeved on the outside of the integral assembly consisting of the bottom plate, the side plate and the airbag. The distributed pressure loading test device of the present application can adjust the angle and number of the fixture cavity according to the distribution of the pressure load of the test piece along the circumferential direction, realize the application of aircraft structural loads such as the air inlet along the circumferential direction, and can put the test piece in a more realistic load state, improve the test authenticity, and greatly improve the test accuracy.

Description

Technical Field

[0001] The present application belongs to the technical field of pressure charging test, and in particular, relates to a distributed pressure loading test device. Background Art

[0002] At present, pressurization tests are widely used in aircraft air inlet structure design. The commonly used test method is to seal both ends of the air inlet and pressurize the pipe to achieve static test assessment of the structure. In the test design, it is necessary to simplify the load actually borne by the air inlet and select the test load taking into account the structural bearing capacity.

[0003] 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

[0004] The purpose of the present application is to provide a distributed pressure loading test device to solve at least one problem existing in the prior art.

[0005] The technical solution of this application is:

[0006] A distributed pressure loading test device, comprising:

[0007] The bottom plates include two bottom plates, the bottom plates are circular and the two bottom plates are arranged in parallel;

[0008] The side panels include a plurality of side panels, wherein the plurality of side panels are respectively installed between the two bottom panels to divide the space between the two bottom panels into a plurality of fan-shaped cavities;

[0009] The airbags include a plurality of airbags, wherein the plurality of airbags are respectively installed in corresponding fan-shaped cavities;

[0010] The test piece is in a cylindrical shape and is sleeved on the outside of the overall component consisting of the bottom plate, the side plate and the airbag.

[0011] In at least one embodiment of the present application, the bottom plate and the side plate are manufactured by using A3 steel.

[0012] In at least one embodiment of the present application, a connecting ear piece is provided on the bottom plate.

[0013] In at least one embodiment of the present application, a connecting rod is further included. The connecting rod is arranged at the center of the two bottom plates to connect the two bottom plates. The connecting rod is provided with a plurality of plug-in grooves along the circumference, and the side plates are plugged into the plug-in grooves.

[0014] In at least one embodiment of the present application, corresponding plug-in slots are provided on opposite sides of the two bottom plates, and the side plates are plugged into the plug-in slots.

[0015] In at least one embodiment of the present application, the fan-shaped cavity includes n, and the central angle θ corresponding to each fan-shaped cavity is i Each is different, (i=1...n).

[0016] In at least one embodiment of the present application, the fan-shaped cavity includes n, and the central angle θ corresponding to each fan-shaped cavity is i are all the same, (i=1...n).

[0017] In at least one embodiment of the present application, the fan-shaped cavity includes 6, and the central angle θ corresponding to each fan-shaped cavity is i All are 60 degrees, (i=1...n).

[0018] The invention has at least the following beneficial technical effects:

[0019] The distributed pressure loading test device of the present application can load distributed pressure along the structural annular direction to achieve accurate loading of the test piece. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is an assembly diagram of the bottom plate and the side plate of one embodiment of the present application;

[0021] Figure 2 is a schematic diagram of an airbag according to an embodiment of the present application;

[0022] Figure 3 is a schematic diagram of a test piece according to an embodiment of the present application;

[0023] Figure 4 It is an overall assembly diagram of a distributed pressure loading test device according to one embodiment of the present application;

[0024] Figure 5 It is a schematic diagram of the fan-shaped cavity partitioning according to one embodiment of the present application.

[0025] in:

[0026] 1- bottom plate; 2- side plate; 3- airbag; 4- test piece. DETAILED DESCRIPTION

[0027] 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.

[0028] 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.

[0029] The following is combined with Figures 1 to 5 This application is described in further detail.

[0030] The present application provides a distributed pressure loading test device, comprising: a bottom plate 1, a side plate 2, an airbag 3 and a test piece 4.

[0031] Specifically, the bottom plates 1 include two bottom plates 1, which are circular in shape. The two bottom plates 1 are arranged in parallel with a predetermined distance between them. The side plates 2 include multiple side plates 2, which are respectively installed between the two bottom plates 1 to divide the space between the two bottom plates 1 into multiple fan-shaped cavities. The two bottom plates 1 and the multiple side plates 2 constitute a support fixture. The number of airbags 3 is the same as the fan-shaped cavities, including multiple airbags 3, which are respectively installed in the corresponding fan-shaped cavities; the test piece 4 is cylindrical, and the test piece 4 is sleeved on the outside of the overall assembly composed of the bottom plate 1, the side plate 2 and the airbag 3. During installation, the test piece 4 is first supported, and then the airbags 3 are placed in the fan-shaped cavity of the support fixture in turn, and the assembled support fixture and airbags 3 are loaded into the test piece 4, and the test device is supported.

[0032] In the distributed pressure loading test device of the present application, the bottom plate 1 and the side plate 2 can be made of A3 steel. Connecting ears are provided at both ends of the bottom plate 1 for support. An air bag 3 is arranged in each fan-shaped cavity for applying pressure load.

[0033] In a preferred embodiment of the present application, a connecting rod is further included. The connecting rod can be arranged in the center of the two bottom plates 1 in an integrally formed manner to connect the two bottom plates 1. The connecting rod is provided with a plurality of plug-in slots along the circumference, and the side plates 2 are plugged into the plug-in slots, thereby realizing the assembly of the side plates 2 and the bottom plates 1. In another preferred embodiment of the present application, one-to-one corresponding plug-in slots are provided on opposite sides of the two bottom plates 1, and the side plates 2 are plugged into the plug-in slots, thereby realizing the assembly of the side plates 2 and the bottom plates 1.

[0034] The distributed pressure loading test device of the present application determines the radius R of the two bottom plates 1 according to the geometric dimensions of the test piece 4, and determines the number n of the fan-shaped cavities and the central angle θ corresponding to each fan-shaped cavity according to the load distribution and the test accuracy requirements. i (i=1……n), the load distribution along the structure can be simulated by adjusting the partition angle of each fan-shaped cavity of the support fixture. The size of the airbag 3 is determined by the structural parameters of each fan-shaped cavity of the support fixture. Among them, the central angle θ corresponding to each fan-shaped cavity is i They can be different or set to the same center angle. Figure 5 As shown, in this embodiment, the fan-shaped cavity includes 6, and the central angle θ corresponding to each fan-shaped cavity is i All are 60 degrees, (i=1...n).

[0035] The distributed pressure loading test device of the present application can adjust the angle and number of the fixture cavities according to the distribution of the pressure load of the test piece along the circumferential direction, realize the application of aircraft structural loads such as the air inlet along the circumferential direction, and can put the test piece in a more realistic load state, improve the test authenticity, and greatly improve the test accuracy.

[0036] 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 distributed pressure loading test device, characterized in that: include: The bottom plate (1) comprises two bottom plates (1), the bottom plates (1) are circular, and the two bottom plates (1) are arranged in parallel; The side panels (2) include a plurality of side panels (2), wherein the plurality of side panels (2) are respectively installed between the two bottom panels (1) to divide the space between the two bottom panels (1) into a plurality of fan-shaped cavities; The airbag (3) comprises a plurality of airbags, wherein the plurality of airbags (3) are respectively installed in corresponding fan-shaped cavities; The test piece (4) is cylindrical, and the test piece (4) is sleeved on the outside of the overall component consisting of the bottom plate (1), the side plate (2) and the airbag (3); One side of the two bottom plates (1) opposite to each other is provided with corresponding insertion slots, and the side plates (2) are inserted into the insertion slots; The fan-shaped cavity includes n, and the central angle θ corresponding to each fan-shaped cavity i Different from each other, or the central angle θ corresponding to each of the fan-shaped cavities i are all the same, i=1…n.

2. The distributed pressure loading test device according to claim 1 is characterized in that: The bottom plate (1) and the side plate (2) are made of A3 steel.

3. The distributed pressure loading test device according to claim 1, characterized in that: The bottom plate (1) is provided with connecting ears.

4. The distributed pressure loading test device according to claim 1, characterized in that: It also comprises a connecting rod, which is arranged at the center of the two bottom plates (1) and connects the two bottom plates (1), and the connecting rod is provided with a plurality of plug-in grooves along the circumference, and the side plates (2) are plugged into the plug-in grooves.

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