Magnetic fluid driven adjustable angle test bed

Abstract

This invention discloses a magnetohydrodynamic (MHD) driven adjustable angle test platform, comprising: a test platform including a base, with a top platform rotatably connected to the left side of the base; a magnetohydrodynamic (MHD) storage tank placed on the base; a magnetohydrodynamic (MHD) cylinder connected to the MHD storage tank, with at least two electromagnetic coils wound on it; and a magnetic cylinder placed on the right side of the base, including an outer cylinder and an inner cylinder connected to each other, both filled with a certain amount of MHD; the inner cylinder is connected to the MHD cylinder, with its bottom fixedly connected to the base, and its top fixedly connected to the top platform. This invention enables angle adjustment of the test platform.

Description

Technical Field

[0001] This invention relates to the field of test bench design, and in particular to a magnetohydrodynamic (MHD) driven adjustable angle test bench. Background Technology

[0002] Magnetofluid, also known as magnetic liquid, ferrofluid, or magnetic fluid, is a novel functional material that combines the fluidity of a liquid with the magnetic properties of a solid magnetic material. It is a stable colloidal liquid composed of magnetic solid particles with diameters on the nanometer scale (below 10 nanometers), a carrier liquid (also called a medium), and a surfactant. This fluid exhibits no magnetic attraction when static, but displays magnetism when an external magnetic field is applied. This characteristic allows for its wide range of practical applications and holds significant theoretical value. Magnetofluids produced using nanoscale metal and alloy powders exhibit superior performance and can be widely used in various demanding applications such as magnetic fluid sealing, vibration damping, medical devices, sound control, optical displays, and magnetic fluid mineral processing.

[0003] Many scientific studies require test benches with adjustable tilt angles, such as for testing the rollover limit angle of a car on a static slope and the stress conditions of an airfoil at different pitch angles. Against this backdrop, this patent provides a magnetohydrodynamic (MHD) driven adjustable-angle test bench. Summary of the Invention

[0004] The main objective of this invention is to provide an adjustable angle test bench driven by high magnetohydrodynamics, which has a large adjustable angle range, high precision, and a wide pressure tolerance range.

[0005] The technical solution adopted in this invention is:

[0006] A magnetohydrodynamic (MHD) driven adjustable angle test bench is provided, comprising:

[0007] The experimental platform includes a top platform and a base, with the top platform and the base being rotatably connected on the left side;

[0008] The magnetohydrodynamic storage tank is placed on the base;

[0009] A magnetofluid cylinder, connected to a magnetofluid storage tank, has at least two electromagnetic coils wound around it;

[0010] The magnetic cylinder, located on the right side of the base, includes an outer cylinder and an inner cylinder that are connected to each other, and both the outer cylinder and the inner cylinder are filled with a certain amount of magnetic fluid; the inner cylinder is connected to the magnetic fluid cylinder, the bottom of the inner cylinder is fixedly connected to the base, and the top of the outer cylinder is fixedly connected to the top platform.

[0011] Following the above technical solution, the test bench also includes at least two current control knobs, each of which controls the current in an electromagnetic coil.

[0012] Following the above technical solution, the magnetohydrodynamic storage tank is equipped with a valve.

[0013] Following the above technical solution, the top platform and the left side of the base are fixed by hinge.

[0014] Following the above technical solution, the bottom of the inner cylinder is fixed to the base by a hinge; the top of the outer cylinder is fixed to the top platform by a hinge.

[0015] Following the above technical solution, the inner cylinder and the magnetohydrodynamic cylinder are connected by a connecting pipe.

[0016] Following the above technical solution, the bottom of the magnetofluid cylinder is directly connected to the bottom of the magnetofluid storage tank.

[0017] Following the above technical solution, the wire material, wire resistivity, and number of turns of the two electromagnetic coils are all the same.

[0018] According to the above technical solution, when both electromagnetic coils are energized, if the current passing through the left electromagnetic coil is greater than the current passing through the right electromagnetic coil, the magnetic fluid in the magnetic fluid cylinder flows to the left, the magnetic fluid in the magnetic cylinder flows into the magnetic fluid cylinder, the magnetic fluid in the magnetic fluid cylinder flows into the magnetic fluid storage tank, the outer cylinder moves downward, and pushes the right side of the top platform to move downward.

[0019] According to the above technical solution, when both electromagnetic coils are energized, if the current passing through the left electromagnetic coil is less than the current passing through the right electromagnetic coil, the magnetic fluid in the magnetic fluid cylinder flows to the right, the magnetic fluid in the magnetic fluid cylinder flows into the magnetic cylinder, the magnetic fluid in the magnetic fluid storage tank flows into the magnetic fluid cylinder, the outer cylinder moves upward, and pushes the right side of the top platform to move upward.

[0020] The beneficial effects of this invention are as follows: By adjusting the current flowing through the two electromagnetic coils, this invention controls the movement of the magnetohydrodynamic fluid within the outer and inner cylinders, thereby controlling the vertical movement of the outer and inner cylinders, and consequently, the vertical movement of the right side of the test platform, thus achieving angle adjustment of the test platform. This invention provides a test platform with a wide adjustable angle range, a large pressure tolerance range, high angle adjustment accuracy, simple structure, convenient operation, low cost, and easy maintenance. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments. In the accompanying drawings:

[0022] Figure 1 This is a schematic diagram of the structure of the magnetohydrodynamic adjustable angle test bench according to an embodiment of the present invention;

[0023] Figure 2a This is a schematic diagram illustrating the upward movement of the right side of the top platform according to an embodiment of the present invention;

[0024] Figure 2bThis is a schematic diagram of the right side of the top platform moving downwards according to an embodiment of the present invention. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0026] like Figure 1 As shown, the adjustable angle test bench driven by magnetohydrodynamics according to an embodiment of the present invention includes an experimental platform, a magnetohydrodynamic storage tank 3, a magnetohydrodynamic cylinder 14, and a magnetic cylinder.

[0027] The experimental platform includes a top platform 1 and a base 6, with the top platform 1 rotatably connected to the left side of the base 6; a magnetic fluid storage tank 3 is placed on the base 6, storing magnetic fluid 5; a magnetic fluid cylinder 14 is connected to the magnetic fluid storage tank 3, with at least two electromagnetic coils 9 and 10 wound on it; a magnetic cylinder is placed on the right side of the base, including an outer cylinder 12 and an inner cylinder 13 that are connected, and both the outer cylinder 12 and the inner cylinder 13 are filled with a certain amount of magnetic fluid; the inner cylinder 13 is connected to the magnetic fluid cylinder 14, with the bottom of the inner cylinder 13 fixedly connected to the base 6, and the top of the outer cylinder 12 fixedly connected to the top platform 1.

[0028] Furthermore, the adjustable angle test platform also includes at least two current control knobs 7 and 8, each controlling the current in an electromagnetic coil. Magnetofluid is a stable colloidal system formed by nanoscale strongly magnetic particles coated with surfactants, highly dispersed within a carrier liquid. It possesses not only the magnetism of solid magnetic materials but also the fluidity of liquids. Because magnetofluids exhibit no hysteresis, when an external magnetic field is applied, the magnetic particles in the magnetofluid aggregate into chains; when the magnetic field is removed, the aggregated magnetic particles disperse and are once again uniformly dispersed in the base liquid. When energized, a magnetic field is generated in the electromagnetic coil, causing the magnetofluid in the magnetofluid storage tank 3 to move in a certain direction. The movement speed of the magnetofluid is controlled by adjusting the current flowing through the electromagnetic coil to achieve the tilting of the experimental platform.

[0029] The magnetohydrodynamic storage tank 4 is equipped with valve 2. When the tilt angle of the test bench needs to be adjusted, valve 2 is opened; when no adjustment is needed, valve 2 is closed.

[0030] In one embodiment of the present invention, the top platform 1 and the left side of the base 6 are fixed by hinges, and the top platform 1 and the base 6 can be supported by a support member. The top of the support member can be provided with a rotatable hinge 4, and the top platform 1 can rotate at a certain angle to facilitate the raising and lowering of the right side of the top platform 1.

[0031] The bottom of the inner cylinder 13 is fixed to the base 6 by a hinge 16, and the top of the outer cylinder 12 is fixed to the top platform 1 by a hinge. When the magnetic cylinder rises or falls, it will generate a limited degree of freedom of rotation.

[0032] Specifically, the inner cylinder 13 and the magnetic fluid cylinder 14 are connected by a connecting pipe 15, through which the magnetic fluid can flow between the inner cylinder 13 and the magnetic fluid cylinder 14.

[0033] The bottom of the magnetic fluid cylinder 14 is directly connected to the bottom of the magnetic fluid storage tank 3, which facilitates the flow of magnetic fluid between the magnetic fluid cylinder 14 and the magnetic fluid storage tank 3.

[0034] In this embodiment of the invention, the wire material, wire resistivity, and number of turns of the two electromagnetic coils are all the same, which facilitates the control of the current in the two electromagnetic coils.

[0035] When both electromagnetic coils 9 and 10 are energized, if the current flowing through the left electromagnetic coil 9 is greater than the current flowing through the right electromagnetic coil 10, the magnetic fluid in the magnetic fluid cylinder 14 flows to the left, the magnetic fluid in the magnetic cylinder flows into the magnetic fluid cylinder 14, the magnetic fluid in the magnetic fluid cylinder 14 flows into the magnetic fluid storage tank 3, the outer cylinder 12 moves downward, pushing the right side of the top platform 1 downward. Figure 2b As shown.

[0036] When both electromagnetic coils 9 and 10 are energized, if the current flowing through the left electromagnetic coil 9 is less than the current flowing through the right electromagnetic coil 10, the magnetic fluid in the magnetic fluid cylinder 14 flows to the right, and the magnetic fluid in the magnetic fluid cylinder 14 flows into the magnetic cylinder. The magnetic fluid 5 in the magnetic fluid storage tank 3 flows into the magnetic fluid cylinder 14, and the outer cylinder 12 moves upward, pushing the right side of the top platform 1 upward. Figure 2a As shown.

[0037] In summary, this invention controls the movement of the magnetohydrodynamic fluid within the outer and inner cylinders by adjusting the current flowing through the two electromagnetic coils, thereby controlling the vertical movement of the outer and inner cylinders, and consequently the vertical movement of the right side of the test platform, thus achieving angle adjustment of the test platform. The test platform of this invention has a wide adjustable angle range, can withstand a large pressure range, and offers high angle adjustment accuracy. It also features a simple structure, convenient operation, low cost, and ease of maintenance.

[0038] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A magnetohydrodynamic (MHD) driven adjustable angle test bench, characterized in that, include: The experimental platform includes a top platform and a base, with the top platform and the base being rotatably connected on the left side; A magnetofluid storage tank is placed on a base and is equipped with a valve. A magnetofluid cylinder, connected to a magnetofluid storage tank, has at least two electromagnetic coils wound on it, with the two electromagnetic coils having the same wire material, wire resistivity, and number of turns; A magnetic cylinder, located on the right side of the base, includes an outer cylinder and an inner cylinder that are connected to each other, and both the outer cylinder and the inner cylinder are filled with a certain amount of magnetic fluid; the inner cylinder is connected to the magnetic fluid cylinder, the bottom of the inner cylinder is fixedly connected to the base, and the top of the outer cylinder is fixedly connected to the top platform. When both electromagnetic coils are energized, if the current passing through the left electromagnetic coil is greater than the current passing through the right electromagnetic coil, the magnetic fluid in the magnetic fluid cylinder flows to the left, the magnetic fluid in the magnetic cylinder flows into the magnetic fluid cylinder, the magnetic fluid in the magnetic fluid cylinder flows into the magnetic fluid storage tank, the outer cylinder moves downward, and pushes the right side of the top platform to move downward.

2. The magnetohydrodynamic adjustable angle test bench according to claim 1, characterized in that, The adjustable angle test bench also includes at least two current control knobs, each of which controls the current in an electromagnetic coil.

3. The magnetohydrodynamic adjustable angle test bench according to claim 1, characterized in that, The top platform is fixed to the left side of the base by a hinge.

4. The magnetohydrodynamic adjustable angle test bench according to claim 1, characterized in that, The bottom of the inner cylinder is fixed to the base by a hinge; the top of the outer cylinder is fixed to the top platform by a hinge.

5. The magnetohydrodynamic adjustable angle test bench according to claim 1, characterized in that, The inner cylinder and the magnetohydrodynamic cylinder are connected by a connecting pipe.

6. The magnetohydrodynamic adjustable angle test bench according to claim 1, characterized in that, The bottom of the magnetofluid cylinder is directly connected to the bottom of the magnetofluid storage tank.

7. The magnetohydrodynamic adjustable angle test bench according to claim 1, characterized in that, When both electromagnetic coils are energized, if the current passing through the left electromagnetic coil is less than the current passing through the right electromagnetic coil, the magnetic fluid in the magnetic fluid cylinder flows to the right, the magnetic fluid in the magnetic fluid cylinder flows into the magnetic cylinder, the magnetic fluid in the magnetic fluid storage tank flows into the magnetic fluid cylinder, the outer cylinder moves upward, and pushes the right side of the top platform to move upward.

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