Vibration damping device with torsional rigidity and tank artillery system

Abstract

The invention discloses a vibration damping device with torsional rigidity and a tank artillery system, and the vibration damping device comprises a first mounting plate which is used as a first connecting part and is used for connecting a vibration-damped object; the camber beam structure comprises a plurality of camber beams, each camber beam is constructed by a polynomial function to form a thin-wall structure with an initial bending shape, and the thin-wall structure serves as a rigidity unit of the damping device; one end of each camber beam is connected with the first mounting plate, and the other end is connected with the second mounting plate; the damper serves as a damping energy consumption unit of the vibration reduction device, and the two ends of the damper are connected with the first mounting plate and the second mounting plate correspondingly; the dampers and the camber beams are arranged at intervals; and the second mounting plate serves as a second connecting part and is used for connecting a foundation. The problem of low torsional rigidity of a vibration reduction system of the rotating device is solved, and accurate control over the rotating angle is achieved while the vibration reduction performance is guaranteed.

Description

Technical Field

[0001] This invention relates to the field of vibration reduction system technology, specifically to a vibration reduction device with torsional stiffness and a tank gun system. Background Technology

[0002] In some precision rotating devices, vibration damping systems are required to isolate vibrations transmitted to sensitive loads. These systems serve two functions: isolating vibrations and transmitting torque during rotational motion. For devices requiring high precision control of rotational angles, low torsional stiffness in the damping system can lead to coupling between the device's torsional drive mechanism and the damping system, thus affecting angle control. Therefore, the design of vibration damping systems for rotating devices must comprehensively consider both torsional stiffness and damping performance.

[0003] Vibration damping systems designed based on traditional damping devices (such as helical springs, machined springs, and wire mesh dampers) struggle to achieve high torsional stiffness. The fundamental reason is that the radial stiffness of these devices is relatively low, making it difficult to provide sufficient torsional stiffness for the damping system. Therefore, to decouple the torsional drive mechanism of the rotating device from the damping system, the torsional stiffness of the damping system should be increased as much as possible while ensuring triaxial translational vibration damping.

[0004] In view of the above, this application is hereby submitted. Summary of the Invention

[0005] The technical problem this invention aims to solve is that vibration damping systems based on traditional damping devices have relatively low torsional stiffness when achieving low-stiffness vibration damping. When the damped load is rotated under control, the low torsional stiffness of the damping system makes it difficult for the drive mechanism to precisely control the rotation angle. The purpose of this invention is to provide a vibration damping device and tank gun system with anti-torsional stiffness, solving the problem of low torsional stiffness in rotating device vibration damping systems, and achieving precise control of the rotation angle while ensuring vibration damping performance.

[0006] This invention is achieved through the following technical solution:

[0007] In a first aspect, the present invention provides a vibration damping device with torsional stiffness, the vibration damping device comprising:

[0008] The first mounting plate, as the first connecting component, is used to connect the object to be damped;

[0009] The curved beam structure includes multiple curved beams, each of which is constructed by a polynomial function to form a thin-walled structure with an initial curved shape, serving as a stiffness unit of the vibration damping device; one end of each curved beam is connected to a first mounting plate and the other end is connected to a second mounting plate;

[0010] The damper, as a damping energy dissipation unit of the vibration reduction device, has a first mounting plate and a second mounting plate connected to its two ends respectively; and the damper is arranged at intervals with the bending beam.

[0011] The second mounting plate, as a second connecting component, is used to connect to the base.

[0012] Furthermore, the structure of the curved beam is constructed using a polynomial function. The cross-section of the curved beam is obtained by offsetting the curve and then stretched. The governing equation of the curved beam curve is: Where A, B, C, and D are arbitrary constants, the bending beams with different deflections, widths, thicknesses, and lengths can be obtained by changing the parameters of the governing equations, thereby achieving the adjustment of the torsional stiffness of the bending beams.

[0013] Furthermore, the adjustment of the torsional stiffness of the bending beam includes:

[0014] By changing the values ​​of the governing equation parameters A, B, C, and D, the polynomial function can be altered, thus changing the deflection, width, thickness, and length of the bending beam.

[0015] When the deflection is increased while other parameters remain constant, the bearing capacity decreases and the torsional stiffness increases; when the width is increased while other parameters remain constant, the bearing capacity increases and the torsional stiffness increases; when the thickness is increased while other parameters remain constant, the bearing capacity increases and the torsional stiffness increases; when the length is increased while other parameters remain constant, the bearing capacity decreases and the torsional stiffness increases.

[0016] Furthermore, the curved beam adopts a multi-layer curved beam combination to achieve high load-bearing capacity and low vertical stiffness.

[0017] Furthermore, the multi-layer curved beam assembly is formed by stacking single-layer curved beams, with the layers pressed together by bolts at both ends.

[0018] Furthermore, the material of the curved beam is spring steel.

[0019] Furthermore, the first mounting plate and the second mounting plate have a circular or square shape, etc.

[0020] Furthermore, the damper is selected according to different needs and working conditions, and the damper types include liquid dampers, air dampers or magnetorheological dampers.

[0021] Furthermore, one end of each curved beam is fixedly connected to the first mounting plate by bolts, and the other end is fixedly connected to the second mounting plate by bolts;

[0022] Each damper is connected to the first mounting plate and the second mounting plate at both ends via ball joints.

[0023] Secondly, the present invention provides a tank gun system, the system comprising:

[0024] Vehicle body;

[0025] The turret, as a rotating device, is mounted on the vehicle body;

[0026] A vibration damping device is installed between the turret and the vehicle body; the vibration damping device is one of the aforementioned vibration damping devices with torsional stiffness.

[0027] The cannon is mounted at the front of the turret.

[0028] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0029] 1. This invention discloses a vibration damping device and tank gun system with torsional stiffness. The designed curved beam structure is the core component of the vibration damping device. Through the structural design of the curved beam and the macroscopic layout design, high torsional stiffness and low stiffness characteristics in other directions are achieved. This invention solves the problem of low torsional stiffness in the vibration damping system of rotating devices, and achieves precise control of the rotation angle while ensuring vibration damping performance.

[0030] 2. This invention provides a vibration damping device and tank gun system with torsional stiffness. It can achieve a natural frequency of not less than 30Hz in the torsional direction to ensure precise control of the rotation angle, and a natural frequency of not more than 6Hz in the vertical and horizontal directions to ensure vibration damping performance. The designed vibration damping device can adjust the number of layers and arrays of the bending beams according to the mass change of the object being damped, offering better adjustability compared to other vibration damping devices. Modifications to other vibration damping devices typically require replacing the entire device to adapt to changes in the mass of the object being damped. The magnetorheological damper of the designed vibration damping device can adjust its damping magnitude according to the working environment, providing better adaptability. Attached Figure Description

[0031] The accompanying drawings, which are included to provide a further understanding of embodiments of the invention and form part of this application, do not constitute a limitation thereof. In the drawings:

[0032] Figure 1 This is a schematic diagram of the structure of a vibration damping device with torsional stiffness according to the present invention.

[0033] Figure 2 This is a schematic diagram illustrating the process of constructing the curved beam structure of the present invention using a polynomial function;

[0034] Figure 3 This is a schematic diagram of the structure of the single-layer curved beam and the multi-layer curved beam of the present invention;

[0035] Figure 4 This is a side view of the tank gun system of the present invention;

[0036] Figure 5 This is a front view of the tank gun system of the present invention;

[0037] Figure 6 This is a top view of the tank gun system of the present invention;

[0038] Figure 7 This is a simplified simulation result diagram for the present invention.

[0039] Figure reference numerals and corresponding component names:

[0040] 100-First mounting plate, 101-Bent beam, 102-Damper, 103-Second mounting plate;

[0041] 200 - Vehicle body, 201 - Turret, 202 - Vibration damping device, 203 - Cannon. Detailed Implementation

[0042] In the following, the terms “comprising” or “may include” as used in various embodiments of the invention indicate the presence of an inventive function, operation, or element, and do not limit the addition of one or more functions, operations, or elements. Furthermore, as used in various embodiments of the invention, the terms “comprising,” “having,” and their cognates are intended only to indicate a specific feature, number, step, operation, element, component, or combination of the foregoing, and should not be construed as primarily excluding the presence of one or more other features, numbers, steps, operations, elements, components, or combinations of the foregoing, or adding one or more combinations of the foregoing.

[0043] In various embodiments of the invention, the expression "or" or "at least one of A and / or B" includes any combination or all combinations of the words listed simultaneously. For example, the expression "A or B" or "at least one of A and / or B" may include A, may include B, or may include both A and B.

[0044] The expressions used in the various embodiments of the present invention (such as "first," "second," etc.) may modify various constituent elements in the various embodiments, but do not limit the corresponding constituent elements. For example, the above expressions do not limit the order and / or importance of the elements. The above expressions are only used for the purpose of distinguishing one element from other elements. For example, a first user device and a second user device refer to different user devices, although both are user devices. For example, a first element may be referred to as a second element without departing from the scope of the various embodiments of the present invention, and similarly, a second element may also be referred to as a first element.

[0045] It should be noted that if a description is made of "connecting" one component to another, then the first component can be directly connected to the second component, and a third component can be "connected" between the first and second components. Conversely, when a component is "directly connected" to another component, it can be understood that there is no third component between the first and second components.

[0046] The terminology used in the various embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to limit the various embodiments of the invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which the various embodiments of the invention pertain. The terms (such as those defined in a generally used dictionary) are to be interpreted as having the same meaning as in the context of the relevant technical field and are not to be interpreted as having an idealized or overly formal meaning, unless clearly defined in the various embodiments of the invention.

[0047] To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of the present invention are only used to explain the present invention and are not intended to limit the present invention.

[0048] To decouple the torsional drive mechanism from the vibration damping system, this invention achieves high torsional stiffness of the vibration damping system through the design of the damping devices and system layout. The overall structure of the designed vibration damping device is as follows: Figure 1 As shown, the vibration damping device consists of a curved beam, a damper, a load mounting plate (i.e., the first mounting plate), and a base plate (i.e., the second mounting plate).

[0049] The design features of this invention are as follows:

[0050] 1. The curved beam structure designed in this invention is the core component of the vibration damping device. Through the structural design and macroscopic layout design of the curved beam, high torsional stiffness and low stiffness characteristics in other directions are achieved. Specifically, the construction, width, and thickness of the curved beam determine its mechanical properties, and the stiffness characteristics in each direction can be adjusted based on these factors to obtain the target characteristics. In the macroscopic layout design of the vibration damping device, high torsional stiffness can be obtained by controlling the installation angle, number of layers, and array quantity of the curved beams. Figure 1 Taking the vibration damping device in the example, the width direction of the curved beam is consistent with the tangent of the circumference. The width direction of the curved beam has extremely high stiffness, while the stiffness in other directions is relatively small. Therefore, it can achieve high torsional stiffness and low stiffness in other directions. By adjusting the structural form and installation method of the curved beam, other effects can also be obtained, such as low torsional stiffness and high horizontal stiffness characteristics.

[0051] 2. The multi-layer combination characteristic of curved beams allows them to have both high load-bearing capacity and low natural frequency.

[0052] 3. The adjustable damping characteristics of magnetorheological dampers and the adjustable stiffness characteristics of bending beams can make the vibration reduction system more adaptable to the environment.

[0053] Example 1

[0054] like Figure 1 As shown, the present invention provides a vibration damping device with torsional stiffness, the vibration damping device comprising:

[0055] The first mounting plate 100 serves as the first connecting component for connecting the object to be damped.

[0056] The curved beam structure includes multiple curved beams 101, each of which is constructed using a polynomial function to form a thin-walled structure with an initial curved shape. It serves as a stiffness unit for the vibration damping device, bearing loads and determining the torsional stiffness of the vibration damping system. Vibration damping devices designed based on this type of curved beam can achieve high torsional stiffness. One end of each curved beam 101 is connected to a first mounting plate 100, and the other end is connected to a second mounting plate 103.

[0057] The damper 102 serves as the damping energy dissipation unit of the vibration reduction device, providing damping to attenuate the energy of vibration and impact. The two ends of the damper 102 are respectively connected to the first mounting plate 100 and the second mounting plate 103; and the damper 102 is spaced apart from the curved beam 101.

[0058] The second mounting plate 103 serves as a second connecting component for connecting to a foundation, which can be a foundation device or the ground, etc.

[0059] In this embodiment, the structure of the curved beam 101 is constructed using a polynomial function. The cross-section of the curved beam 101 is obtained by offsetting the curve and then stretched. The governing equation of the curved beam curve is: Where A, B, C, and D are arbitrary constants, the bending beams with different deflections, widths, thicknesses, and lengths can be obtained by changing the parameters of the governing equations, thereby achieving the adjustment of the torsional stiffness of the bending beams.

[0060] In this embodiment, the adjustment of the torsional stiffness of the bent beam includes:

[0061] By changing the values ​​of the parameters A, B, C, and D in the governing equations to alter the polynomial function, the deflection, width, thickness, and length of the bending beam 101 are changed.

[0062] When the deflection is increased while other parameters remain constant, the bearing capacity decreases and the torsional stiffness increases; when the width is increased while other parameters remain constant, the bearing capacity increases and the torsional stiffness increases; when the thickness is increased while other parameters remain constant, the bearing capacity increases and the torsional stiffness increases; when the length is increased while other parameters remain constant, the bearing capacity decreases and the torsional stiffness increases.

[0063] In addition, the more layers of curved beams there are, the greater the load-bearing capacity.

[0064] In this embodiment, to improve vibration reduction performance, the curved beam 101 adopts a multi-layer curved beam combination to achieve high load-bearing capacity and low vertical stiffness. Furthermore, the friction between the multi-layer curved beams can also generate a damping effect, replacing a damper.

[0065] Specifically, the multi-layer curved beam assembly is formed by stacking single-layer curved beams, with the layers pressed together by bolts at both ends.

[0066] In this embodiment, the curved beam 101 is made of spring steel.

[0067] In this embodiment, in order to save external installation space, all curved beams 101 are recessed inward.

[0068] In this embodiment, the first mounting plate 100 and the second mounting plate 103 are circular or square in shape, and the structural form does not affect the torsional resistance of the vibration damping device.

[0069] In this embodiment, the damper 102 is selected according to different needs and working conditions. The damper type can be a liquid damper, an air damper, or a magnetorheological damper.

[0070] In this embodiment, one end of each curved beam 101 is fixedly connected to the first mounting plate 100 by bolts, and the other end is fixedly connected to the second mounting plate 103 by bolts.

[0071] Each damper 102 is connected at both ends to the first mounting plate 100 and the second mounting plate 103 via ball joints.

[0072] This invention presents a vibration damping device with high torsional stiffness. It achieves a natural frequency of at least 30Hz in the torsional direction to ensure precise control of the rotation angle, and a natural frequency of at least 6Hz in both the vertical and horizontal directions to ensure vibration damping performance. The designed vibration damping device allows for adjustments to the number of beam layers and arrays based on changes in the mass of the object being damped, offering better adjustability compared to other vibration damping devices. Modifications to other devices typically require replacing the entire device to adapt to changes in the object's mass. Furthermore, the magnetorheological damper in this design allows for adjustment of the damping magnitude according to the operating conditions, providing better adaptability.

[0073] Example 2

[0074] like Figures 4 to 7 As shown, the difference between this embodiment and Embodiment 1 is that this embodiment provides a tank gun system, which includes:

[0075] Vehicle body 200;

[0076] The turret 201, as a rotating device, is mounted on the vehicle body 200;

[0077] Vibration damping device 202 is installed between the turret 201 and the vehicle body 200; the vibration damping device 202 adopts a vibration damping device with torsional stiffness according to Embodiment 1;

[0078] Artillery 203 is mounted at the front end of the turret 201.

[0079] like Figure 4 , Figure 5 and Figure 6 As shown, the tank turret 201 is a typical rotating device. The gun system is mounted at the front of the turret 201. High stability is required on the turret platform when the gun is aiming. Therefore, this invention installs a vibration damping device 202 between the turret 201 and the vehicle hull 200 to improve the aiming accuracy and stability of the gun. When the turret 201 rotates, it needs to transmit a large torque to the vehicle hull 200. Vibration damping devices with low torsional stiffness will deform significantly when transmitting torque, making it difficult to accurately control the turret's azimuth angle. Therefore, the vibration damping device needs to have high torsional stiffness while maintaining relatively low stiffness in other directions to improve its damping performance. The vibration damping device with anti-torsional stiffness designed in this invention can be applied to the vibration damping system of a tank turret to improve the aiming accuracy of the gun.

[0080] like Figure 7 As shown, Figure 7 To simplify the simulation results, a simplified model of a tank turret is used for simulation analysis. It can be seen that the frequency of the sixth torsional mode of the system is 54.3Hz, and the frequencies of the first three modes are all no greater than 6Hz. Therefore, it has a good vibration reduction effect, and the vibration reduction system can also provide high torsional stiffness.

[0081] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A vibration damping device having torsional rigidity, characterized by, The damping device comprises: a first mounting plate (100) for connecting a damping object; a curved beam structure comprising a plurality of curved beams (101), each of the curved beams (101) being formed by a thin-walled structure with an initial curved shape constructed by a polynomial function, as a stiffness unit of the damping device; one end of each of the curved beams (101) being connected to the first mounting plate (100) and the other end being connected to a second mounting plate (103); a damper structure comprising a plurality of dampers (102), as a damping energy dissipation unit of the damping device, two ends of each of the dampers (102) being connected to the first mounting plate (100) and the second mounting plate (103) respectively; and the dampers (102) being arranged at intervals with the curved beams (101); a second mounting plate (103) for connecting a foundation.

2. A vibration damping device having torsional rigidity according to claim 1, characterized by The structure of the curved beam (101) is a polynomial function structure, the section of the curved beam (101) is obtained by offsetting the curve and stretching, and the control equation of the curved beam curve is Wherein A, B, C, D are arbitrary constants, the curved beam with different deflection, width, thickness and length is obtained by changing the control equation parameters, so as to realize the torsional stiffness adjustment of the curved beam.

3. A vibration damping device having torsional rigidity according to claim 2, characterized by The adjustment of the torsional stiffness adjustment of the curved beam comprises: changing the values of the control equation parameters A, B, C, and D to change the polynomial function, and changing the deflection, width, thickness, and length of the curved beam (101); when the deflection is increased and other parameters remain unchanged, the bearing capacity is reduced and the torsional stiffness is increased; when the width is increased and other parameters remain unchanged, the bearing capacity is increased and the torsional stiffness is increased; when the thickness is increased and other parameters remain unchanged, the bearing capacity is increased and the torsional stiffness is increased; when the length is increased and other parameters remain unchanged, the bearing capacity is reduced and the torsional stiffness is increased.

4. The vibration damping device having torsional rigidity according to claim 1, characterized by The curved beam (101) adopts a multi-layer curved beam combination to realize high bearing capacity and low vertical stiffness.

5. A vibration damping device having torsional rigidity according to claim 4, wherein The multi-layer curved beam combination is formed by stacking single-layer curved beams, and the layers are pressed and fitted by bolts at both ends.

6. The vibration damping device having torsional rigidity according to claim 1, characterized by The material of the curved beam (101) is spring steel.

7. The vibration damping device having torsional rigidity according to Claim 1, characterized by The first mounting plate (100) and the second mounting plate (103) are circular or square in structure.

8. The vibration damping device having torsional rigidity according to Claim 1, characterized by The damper (102) is selected according to different requirements and working conditions, and the damper type includes a liquid damper, an air damper, or a magnetorheological damper.

9. The vibration damping device having torsional rigidity according to Claim 1, characterized by One end of each curved beam (101) is fixedly connected to the first mounting plate (100) by a bolt, and the other end is fixedly connected to the second mounting plate (103) by a bolt. Both ends of each damper (102) are connected to the first mounting plate (100) and the second mounting plate (103) by a spherical hinge respectively.

10. A tank gun system characterized in that, The system comprises: a vehicle body (200); a turret (201) as a rotating device, mounted on the vehicle body (200); a damping device (202) mounted between the turret (201) and the vehicle body (200); the damping device (202) adopts any one of the damping devices with torsional stiffness according to claims 1 to 9; a gun (203) mounted at the front end of the turret (201).

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