A model support device for both aircraft and automobile wind tunnel tests

Abstract

The utility model relates to a model support device for airplane and automobile wind tunnel test, belonging to the technical field of wind tunnel test. The utility model solves the problem that the prior art cannot simultaneously satisfy the structural change of airplane model test and automobile model test. Technical points: the side slide angle mechanism is fixed in the middle part of the support base, the top of the side slide angle mechanism is equipped with the pitch angle mechanism, the model support rod is installed on the pitch angle mechanism, the test model is installed on the model support rod, two wallboards are symmetrically hinged on the top of the support base on the front and rear two sides, the fixed end of the electric cylinder is installed on the support base, the execution end is hinged with the wallboard, and the electric cylinder drives the wallboard to rotate from the vertical state to the horizontal state. The utility model can simultaneously satisfy the requirements of airplane model test and automobile model test through the structural change of the model support device itself, shorten the test preparation time, improve the efficiency and reduce the equipment cost.

Description

Technical Field

[0001] This invention relates to the field of wind tunnel testing technology, specifically to a model support device that can be used for both aircraft and automobile wind tunnel testing. Background Technology

[0002] Wind tunnels, as core testing equipment in fluid mechanics research and engineering applications, are typically classified in close conjunction with their application scenarios, primarily into aerospace wind tunnels and automotive wind tunnels. Aerospace wind tunnels are specifically designed for the aerospace field, conducting aerodynamic performance tests on various aircraft, rockets, satellites, and other flying vehicles, accurately simulating the aerodynamic characteristics of these vehicles at different flight speeds and altitudes. Automotive wind tunnels, on the other hand, focus on the ground transportation sector, used for aerodynamic testing of ground-based mobile devices such as automobiles and high-speed trains, helping to optimize their drag, lift, and aerodynamic stability during operation.

[0003] With the rapid development of the aerospace and automotive industries, the continuous emergence of new technologies has placed more diverse demands on wind tunnel testing. Whether it is new energy propulsion technology and hypersonic flight technology in the field of aircraft, or the electrification and intelligentization development in the automotive industry, wind tunnel testing under a single application scenario is difficult to meet complex R&D needs, and the requirements for the test compatibility and multifunctionality of the same wind tunnel have been significantly increased.

[0004] However, the core differences in the two types of model tests directly lead to differences in the structural forms of the support devices. Aircraft model tests require specialized aircraft model support devices to achieve precise positioning of the model and ensure the stability of the model's attitude during the test, so as to simulate the real stress state of the aircraft in the air; car model tests need to simulate the real road environment, requiring the addition of an additional lower wall panel simulating the ground to ensure the stability of the car model during the test.

[0005] This structural difference means that when switching test types, not only must the corresponding aircraft or car model be replaced, but the compatible model support device must also be replaced simultaneously. This entire replacement process is extremely labor-intensive and consumes a significant amount of test preparation time, resulting in low overall efficiency of wind tunnel testing.

[0006] Therefore, there is an urgent need to propose a model support device that can be used for both aircraft and automobile wind tunnel testing, in order to solve the problem that existing technologies cannot simultaneously meet the structural changes required for aircraft model testing and automobile model testing. Summary of the Invention

[0007] In view of the above facts, in order to solve the problem that the existing technology cannot simultaneously meet the structural changes of aircraft model testing and automobile model testing, the present invention designs a model support device that can be used for both aircraft and automobile wind tunnel testing.

[0008] To achieve the above objectives, the present invention adopts the following technical solution:

[0009] A model support device for both aircraft and automobile wind tunnel testing includes a support base, a sideslip mechanism, a pitch mechanism, a wall panel, an electric cylinder, a model support rod, and a test model;

[0010] The side-slip angle mechanism is fixed in the middle of the support base. A pitch angle mechanism is installed on the top of the side-slip angle mechanism. The model support rod is installed on the pitch angle mechanism. The test model is installed on the model support rod. Two wall panels are symmetrically hinged on the front and rear sides of the top of the support base. The fixed end of the electric cylinder is installed on the support base, and the actuator end is hinged to the wall panel. The electric cylinder drives the wall panel to rotate from a vertical state to a horizontal state.

[0011] Furthermore, the bottom of the support base is provided with a wheel set and a locking mechanism.

[0012] Furthermore: the pitch angle mechanism is provided with a mounting hole at the top, the pitch angle mechanism is connected to the model support rod by bolts, and the model support rod is connected to the test model by bolts.

[0013] Furthermore: the model support rod is an aircraft model support rod or a car model support rod, and the test model is an aircraft model or a car model;

[0014] The aircraft model support rod is connected to the aircraft model;

[0015] The support rod for the car model is connected to the car model.

[0016] Furthermore, a semi-circular notch and a sealing brush are provided at the center of the upper edge of the wall panel.

[0017] The beneficial effects of this invention are as follows:

[0018] 1. This invention can simultaneously meet the requirements of aircraft model testing and automobile model testing through structural changes in the model support device itself.

[0019] 2. When switching test types, this invention only requires replacing the model support rod and the test model, without replacing the model support device, which can shorten the test preparation time and improve efficiency.

[0020] 3. This invention uses a single model support device, which reduces equipment costs. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the present invention;

[0022] Figure 2 A schematic diagram of the structure of this invention for conducting aircraft model tests;

[0023] Figure 3 A schematic diagram of the structure of this invention for conducting automobile model tests.

[0024] In the diagram: 1-Support base, 2-Side sliding mechanism, 3-Pitch mechanism, 4-Wall panel, 5-Electric cylinder, 6-Aircraft model support rod, 7-Aircraft model, 8-Car model support rod, 9-Car model, 10-Wheel set, 11-Locking mechanism. Detailed Implementation

[0025] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0026] The terms "set up," "connect," and "fix" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0027] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0028] Preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0029] Example 1: As Figure 1 As shown, this embodiment of a model support device for both aircraft and automobile wind tunnel testing includes a support base 1, a sideslip angle mechanism 2, a pitch angle mechanism 3, a wall panel 4, an electric cylinder 5, a model support rod, and a test model.

[0030] The side-sliding angle mechanism 2 is fixed in the middle of the support base 1. The pitch angle mechanism 3 is installed on the top of the side-sliding angle mechanism 2. The model support rod is installed on the pitch angle mechanism 3. The test model is installed on the model support rod. Two wall panels 4 are symmetrically hinged on the front and rear sides of the top of the support base 1. The fixed end of the electric cylinder 5 is installed on the support base 1, and the actuator end is hinged to the wall panel 4. The electric cylinder 5 drives the wall panel 4 to rotate from the vertical state to the horizontal state.

[0031] More specifically: the sideslip angle mechanism 2 changes the sideslip angle of the test model by rotating in the horizontal plane.

[0032] More specifically: the pitch angle mechanism 3 changes the pitch angle of the test model by rotating in a vertical plane.

[0033] More specifically: the bottom of the support base 1 is provided with a wheel set 10 and a locking mechanism 11 to realize the movement and fixation of the entire device.

[0034] More specifically: the pitch angle mechanism 3 is provided with a mounting hole at the top, the pitch angle mechanism 3 is connected to the model support rod by bolts, and the model support rod is connected to the test model by bolts.

[0035] More specifically: the model support rod is an airplane model support rod 6 or a car model support rod 8, and the test model is an airplane model 7 or a car model 9;

[0036] The aircraft model support rod 6 is connected to the aircraft model 7;

[0037] The car model support rod 8 is connected to the car model 9.

[0038] More specifically: a semi-circular notch and a sealing brush are provided in the middle of the upper edge of the wall panel 4 to reserve space for the car model support rod 8.

[0039] Example 2: Figure 2 As shown, when conducting aircraft model tests, an aircraft model support rod 6 and an aircraft model 7 are installed on top of the pitch angle mechanism 3. The model support device is moved to a designated position in the wind tunnel test section. The sideslip angle of the test model is changed by the rotational movement of the sideslip angle mechanism 2 in the horizontal plane, and the pitch angle of the test model is changed by the rotational movement of the pitch angle mechanism 3 in the vertical plane.

[0040] Example 3: As Figure 3 As shown, when conducting car model tests, the aircraft model support rods 6 and 7 are replaced with car model support rods 8 and 9, and the wall panel 4 is synchronously driven to rotate along its hinge point by the electric cylinder 5. The two wall panels 4 are simultaneously rotated from the vertical position to the horizontal position to form the wall panel required for the car model test. The model support device is moved to the designated position in the wind tunnel test section. The sideslip angle of the test model is changed by the rotational movement of the sideslip angle mechanism 2 in the horizontal plane, while the pitch angle mechanism 3 remains stationary.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein; as long as there is no structural conflict, the various features in the specific embodiments disclosed in this application can be combined with each other in any way, and will not cause the substance of the corresponding technical solutions to deviate from the scope of the technical solutions of the present invention.

[0042] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A model support device suitable for both aircraft and automobile wind tunnel testing, characterized in that, Includes a support base (1), a side sliding mechanism (2), a pitch mechanism (3), a wall panel (4), an electric cylinder (5), a model support rod, and a test model; The side-slip angle mechanism (2) is fixed in the middle of the support base (1). The top of the side-slip angle mechanism (2) is equipped with a pitch angle mechanism (3). The model support rod is installed on the pitch angle mechanism (3). The test model is installed on the model support rod. The two wall panels (4) are symmetrically hinged on the front and rear sides of the top of the support base (1). The fixed end of the electric cylinder (5) is installed on the support base (1), and the execution end is hinged to the wall panel (4). When conducting car model tests, the electric cylinder (5) drives the wall panel (4) to rotate from a vertical state to a horizontal state; The model support rod is an aircraft model support rod (6) or a car model support rod (8), and the test model is an aircraft model (7) or a car model (9). The aircraft model support rod (6) is connected to the aircraft model (7); The car model support rod (8) is connected to the car model (9).

2. The model support device for both aircraft and automobile wind tunnel testing according to claim 1, characterized in that, The bottom of the support base (1) is provided with a wheel set (10) and a locking mechanism (11).

3. The model support device for both aircraft and automobile wind tunnel testing according to claim 1, characterized in that, The pitch angle mechanism (3) has a mounting hole at the top. The pitch angle mechanism (3) is connected to the model support rod by bolts, and the model support rod is connected to the test model by bolts.

4. The model support device for both aircraft and automobile wind tunnel testing according to claim 1, characterized in that, The upper edge of the wall panel (4) is provided with a semi-circular notch and a sealing brush.

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