Composite cavity type particle damping shock absorber
The partitioned and lattice-structured particle damping vibration isolator enhances particle-medium collisions, addressing the ineffectiveness in micro-vibration environments by transforming particles to an excited state for improved damping.
Patent Information
- Application Number
- CN202421123652.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-22
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-05-22
AI Technical Summary
Existing composite cavity-type particle damping vibration absorbers are ineffective in micro-vibration environments due to particles being difficult to excite, leading to a diminished damping effect.
A composite cavity type particle damping vibration isolator with a partitioned particle holding cavity and lattice structures in some sub-cavities, enhancing particle-medium collisions and energy consumption in micro-vibration conditions.
The isolator effectively transforms particle media from an aggregated state to an excited state, improving vibration reduction in micro-vibration environments and expanding its application scenarios.
Smart Images
Figure CN222277326U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of vibration absorbers, in particular to a composite cavity type particle damping vibration absorber. Background Art
[0002] Ship vibration control technology has developed along with the development of hydroacoustic detection technology. Ship vibration control technology is limited by ship space, weight, etc., and has high technical difficulty and a wide research scope. Therefore, ship vibration control technology has become the focus of ship noise control technology research and also represents the development of ship noise control technology.
[0003] Through various attempts, it has been found that installing composite cavity-type particle damping vibration absorbers on ship equipment can effectively suppress the vibration of the equipment. However, since the composite cavity-type particle damping vibration absorber consumes energy through friction and collision between particles and between particles and the inner wall of the container, when the vibration is large, all the particles of the particle damper are excited to move, which can achieve a good vibration reduction effect. When the particles are in a micro-vibration environment, the particles are difficult to be excited, resulting in the damping effect of the composite cavity-type particle damping vibration absorber being not obvious, which to a certain extent limits the use scenarios of the composite cavity-type particle damping vibration absorber.
[0004] Therefore, how to improve the vibration reduction effect under micro-vibration environment conditions is a technical problem that technical personnel in this field currently need to solve. Utility Model Content
[0005] In view of this, an object of the present invention is to provide a composite cavity type particle damping vibration isolator to improve the vibration reduction effect under micro-vibration environment conditions.
[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0007] A composite cavity type particle damping vibration isolator, comprising:
[0008] A particle damper housing has a particle accommodating chamber with an opening on one side, wherein the particle accommodating chamber is divided into a plurality of sub-cavities by a partition;
[0009] A lattice structure, wherein at least one of the sub-cavities is provided with the lattice structure;
[0010] A particle medium is disposed in each of the sub-cavities;
[0011] The particle damper cover plate is arranged at the opening of the particle containing cavity to close the opening.
[0012] Optionally, in the above-mentioned composite cavity type particle damping vibration isolator, the structures of the lattice structures in at least two of the sub-cavities are different.
[0013] Optionally, in the composite cavity type particle damping vibration isolator, the lattice structure in at least one of the sub-cavities is a first lattice structure;
[0014] The lattice structure in at least one of the sub-cavities is a second lattice structure;
[0015] The first lattice structure and the second lattice structure have different lattice structures.
[0016] Optionally, in the composite cavity type particle damping vibration isolator, the particle medium in the sub-cavity in which the first lattice structure is arranged has the same structure and volume;
[0017] The particle medium in the sub-cavity provided with the second lattice structure has the same structure and volume;
[0018] The structure and volume of the particle medium in the sub-cavity where the lattice structure is not provided are the same.
[0019] Optionally, in the composite cavity type particle damping vibration isolator, the lattice structure is not provided in at least one of the sub-cavities, the sub-cavity without the lattice structure is the first sub-cavity, and the sub-cavity with the lattice structure is the second sub-cavity;
[0020] The sub-cavity surrounding the first sub-cavity is the second sub-cavity.
[0021] Optionally, in the above-mentioned composite cavity type particle damping vibration isolator, the volume of the particle medium in the first sub-cavity is greater than the volume of the particle medium in the second sub-cavity.
[0022] Optionally, in the composite cavity type particle damping vibration isolator, the volumes of the sub-cavities are the same; and / or
[0023] The sub-cavities have the same shape.
[0024] Optionally, in the above-mentioned composite cavity type particle damping vibration absorber, mounting ear plates are provided on at least two sides of the particle damper shell, and fastening holes for matching fasteners are opened on the mounting ear plates, and at least two of the mounting ear plates are respectively located on opposite sides of the particle damper shell.
[0025] Optionally, in the above-mentioned composite cavity type particle damping vibration isolator, there are multiple fastening holes on each of the mounting ear plates, and at least one of them is a circular fastening hole, and at least one is a strip-shaped fastening hole.
[0026] Optionally, in the above composite cavity type particle damping vibration isolator, the particle damper cover is welded to the opening of the particle containing cavity.
[0027] The composite cavity type particle damping vibration isolator provided by the utility model divides the particle holding cavity into a plurality of sub-cavities through a partition to reduce the space for holding the particle medium, so that the particle medium in the sub-cavity is more likely to collide with the inner wall of the sub-cavity in a vibration environment. In addition, a lattice structure is arranged in at least one sub-cavity, and the lattice structure can increase the area of the particle medium contacting the sub-cavity, increase the vibration energy received by the particle medium, and consume the vibration energy through the particle medium. The utility model can transform the particle medium from an aggregated state under micro-vibration to an excited state, thereby enabling it to have a better vibration reduction effect in a micro-vibration environment, giving full play to its energy consumption characteristics, expanding its application scenarios, and improving the overall vibration reduction effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0029] Figure 1 It is a schematic structural diagram of a composite cavity type particle damping vibration isolator disclosed in an embodiment of the utility model;
[0030] Figure 2 It is a structural schematic diagram of the composite cavity type particle damping vibration absorber disclosed in the embodiment of the utility model after the particle damper cover plate is removed;
[0031] Figure 3 A perspective view of a composite cavity type particle damping vibration isolator at an angle disclosed in an embodiment of the utility model;
[0032] Figure 4 A perspective view of a composite cavity type particle damping vibration isolator at another angle disclosed in an embodiment of the utility model;
[0033] Figure 5 Schematic diagram of the particle medium in each sub-cavity of the composite cavity type particle damping vibration isolator disclosed in the embodiment of the utility model
[0034] Figure 6 A cross-sectional view of a position of the composite cavity type particle damping vibration isolator disclosed in an embodiment of the utility model;
[0035] Figure 7 A cross-sectional view of another position of the composite cavity type particle damping vibration isolator disclosed in an embodiment of the utility model;
[0036] Figure 8 A simulation diagram of the motion state of the particle medium disclosed in the embodiment of the utility model;
[0037] Fig. 9 This is a comparison effect diagram of different shock absorbers disclosed in the embodiments of the utility model.
[0038] The meanings of the reference numerals in the figures are as follows:
[0039] 100-particle damper cover;
[0040] 200-particle damper housing; 201-mounting ear plate; 202-fastening hole; 2021-strip fastening hole; 2022-circular fastening hole; 203-partition plate; 204-sub-cavity;
[0041] 301-first lattice structure; 302-second lattice structure;
[0042] 401 - first particle medium; 402 - second particle medium; 403 - third particle medium. DETAILED DESCRIPTION
[0043] The core of the utility model is to provide a composite cavity type particle damping vibration isolator to improve the vibration reduction effect under micro-vibration environment conditions.
[0044] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0045] When the composite cavity type particle damping vibration isolator is fixed in the use environment, the particle medium inside it will accumulate at the bottom under the action of gravity. When there is vibration in the use environment, the vibration energy will be transmitted to the particle medium through the particle damper shell, causing the particle medium to vibrate and then absorb the vibration energy in the use environment to achieve the effect of vibration reduction.
[0046] However, since a large amount of particle media is accumulated at the bottom of the particle damper shell, a larger vibration intensity is required to excite the particle media to vibrate, making it difficult for the particle media to be excited in a micro-vibration environment. As a result, the damping effect of the composite cavity type particle damping shock absorber is not obvious, making it impossible for ship equipment to obtain effective vibration reduction effects in a micro-vibration environment.
[0047] Based on this, the utility model embodiment discloses a composite cavity type particle damping vibration absorber, such as Figure 1-Figure 4 As shown, the composite cavity type particle damping vibration isolator includes a particle damper housing 200 , a lattice structure, a particle medium and a particle damper cover plate 100 .
[0048] The particle damper housing 200 has a particle holding cavity with an opening on one side, and the particle holding cavity is provided with an opening on at least one side so that the particle medium can be placed into the particle holding cavity through the opening. In this embodiment, the particle holding cavity is a rectangular parallelepiped structure, and one side of the rectangular parallelepiped structure is in an open state to form an opening for placing the particle medium. It should be noted that multiple openings can also be provided, such as multiple small openings on one side of the rectangular parallelepiped structure, rather than the overall open state disclosed in the above embodiment, as long as the placement of the particle medium can be completed, the size and number of the openings are not limited in the present invention.
[0049] The particle holding chamber is divided into a plurality of sub-chambers 204 by a partition 203. Figure 2 In the illustrated solution, the partition 203 divides the particle holding cavity into six sub-cavities 204. It should be noted that the particle holding cavity can be divided into other numbers of sub-cavities 204 by the partition 203 according to the actual application scenario and the volume of the particle holding cavity. The particle medium is arranged in each sub-cavity 204, and the filling degree of the particle medium in each sub-cavity 204 can be selected according to the simulation situation to achieve the best vibration reduction effect.
[0050] In this embodiment, the volumes of the sub-cavities 204 can be designed to be the same, and the shapes of the sub-cavities 204 can also be designed to be the same. Of course, the volumes and shapes of the sub-cavities 204 can also be designed to be different according to actual conditions.
[0051] In this embodiment, the particle holding cavity is divided by the partition 203 to obtain a plurality of smaller sub-cavities 204. The partition 203 can not only distinguish the filled particle media, but also prevent the particle media from mixing. The number of particle media in the sub-cavity 204 is significantly smaller than that in the particle holding cavity in the prior art, so the stacking effect is not obvious, and it is easier to be excited and vibrate in a micro-vibration environment.
[0052] Dividing the particle holding cavity by partition 203 can improve the collision efficiency of the particle medium and the damping performance to a certain extent, but it still cannot completely solve the problem of slow particle movement and weak collision caused by the accumulation of particle media. At the same time, this method has limited effect on improving the energy loss of the composite cavity type particle damping vibration isolator and is only applicable within a specific vibration amplitude range, and there is still a lot of room for improvement.
[0053] Based on this, in this embodiment, a lattice structure is further provided in at least one sub-cavity 204. The lattice structure is in the sub-cavity 204, and the particle medium can contact the cavity wall of the sub-cavity 204 through the lattice structure, thereby increasing the area of the particle medium contacting the sub-cavity 204. When the particle damper housing receives the vibration energy of the vibration source, it is transmitted to the particle medium through the lattice structure. Since the lattice structure is provided in the sub-cavity 204, the particle medium in the sub-cavity 204 can be separated to avoid accumulation at the bottom, and it is easier to be excited in a small vibration environment and consume vibration energy.
[0054] The particle damper cover plate 100 is arranged at the opening of the particle holding cavity to close the opening. After the particle medium is completely placed in the corresponding sub-cavity 204, the opening of the particle holding cavity can be blocked by the particle damper cover plate 100 to prevent the particle medium from flowing out. It should be noted that the particle damper cover plate 100 and the particle damper housing 200 can be connected by welding, that is, the particle damper cover plate 100 is welded to the opening of the particle holding cavity. Of course, the particle damper cover plate 100 and the particle damper housing 200 can also be fixed relative to each other by fasteners. This embodiment does not limit the fixing method of the particle damper cover plate 100 and the particle damper housing 200, as long as the blocking of the opening of the particle holding cavity can be achieved.
[0055] like Figure 8 As shown in the figure, the composite cavity type particle damping vibration absorber without lattice structure and the composite cavity type particle damping vibration absorber with lattice structure are simulated under the same excitation conditions in the discrete element software to observe the motion state of the particle medium. The motion trajectory of the particle medium of the composite cavity type particle damping vibration absorber without lattice structure is shown in the figure Figure 8 As shown in (a), the particle medium is accumulated at the bottom, so the lines at the bottom are more concentrated. The particle medium gathers when it moves to the bottom, and only the particle medium with different movement speeds exists at the top. The composite cavity type particle damping shock absorber with a lattice structure is provided, and the movement trajectory of its particle medium is shown in the figure Figure 8 As shown in (b), the lines of the particle medium are dispersed more evenly, and the movement speeds of the particle medium are also different, indicating that the collision is more intense. Therefore, introducing a lattice structure in the sub-cavity 204 can better improve the damping effect of the composite cavity type particle damping vibration isolator in a micro-vibration environment.
[0056] In summary, the composite cavity type particle damping vibration absorber disclosed in the embodiment of the utility model divides the particle holding cavity into a plurality of sub-cavities 204 through a partition 203 to reduce the space for holding the particle medium, so that the particle medium in the sub-cavity 204 is more likely to collide with the inner wall of the sub-cavity 204 in a vibration environment. In addition, a lattice structure is provided in at least one sub-cavity 204, and the lattice structure can increase the area of the particle medium contacting the sub-cavity 204, increase the vibration energy received by the particle medium, and consume the vibration energy through the particle medium. The utility model can transform the particle medium from an aggregated state under micro-vibration to an excited state, thereby enabling it to have a better vibration reduction effect in a micro-vibration environment, giving full play to its energy consumption characteristics, expanding its application scenarios, and improving the overall vibration reduction effect.
[0057] Since the vibration frequency varies in a vibration environment, in order to ensure that the composite cavity type particle damping vibration absorber disclosed in this embodiment can adapt to vibration environments with multiple vibration frequencies, in this embodiment, the structures of the lattice structures in at least two sub-cavities 204 are different. Specifically, lattice structures of different structures can be designed by simulation according to the vibration environment to improve the adaptability to the vibration environment. In general, the larger the lattice size of the lattice structure, the larger the particle medium can be placed, and the more it can adapt to a strong vibration environment. The smaller the lattice size of the lattice structure, the smaller the particle medium can be placed, and the more it can adapt to a micro-vibration environment.
[0058] like Figure 2 and Figure 6 , Figure 7 As shown, the lattice structure in at least one sub-cavity 204 is a first lattice structure 301, and the lattice structure in at least one sub-cavity 204 is a second lattice structure 302. The first lattice structure 301 and the second lattice structure 302 have different lattice structures. Figure 2 In the illustrated solution, the lattice shape of the first lattice structure 301 is a rectangular parallelepiped. The lattice of the first lattice structure 301 can be a frame structure surrounded by columns, or a shell structure surrounded by plates.
[0059] The lattice shape of the second lattice structure 302 is a hexagonal prism, and the lattice of the second lattice structure 302 can be a frame structure surrounded by prisms or a shell structure surrounded by plates. It should be noted that the lattice structure of the first lattice structure 301 and the second lattice structure 302 can also be other shapes, which should be designed according to the actual application scenario.
[0060] In addition, the lattice structure can be prefabricated and fixed in the corresponding sub-cavity 204, and can be fixed by welding, bonding, or fasteners. Of course, the lattice structure can also be cast as an integral structure with the particle damper housing 200, or the lattice structure in the sub-cavity 204 can be processed by laser printing.
[0061] The lattice size of the lattice structure should match the shape and size of the particle medium. Specifically, the structure and volume of the particle medium in the sub-cavity 204 provided with the first lattice structure 301 are the same. Figure 2 In the illustrated solution, the first lattice structure 301 is disposed in the two sub-cavities 204. The structure and volume of the particle medium in the sub-cavity 204 where the second lattice structure 302 is disposed are the same. Figure 2 In the illustrated solution, a second lattice structure 302 is disposed in one sub-cavity 204. Of course, when a second lattice structure 302 is disposed in multiple sub-cavities 204, the structure and volume of the particle medium therein should be the same. In addition, the structure and volume of the particle medium in the sub-cavity 204 without the lattice structure are the same. Figure 2 In the illustrated solution, no lattice structure is provided in the three sub-cavities 204 .
[0062] like Figure 5 As shown, the particle medium in the sub-cavity 204 provided with the first lattice structure 301 is the first particle medium 401, the particle medium in the sub-cavity 204 provided with the second lattice structure 302 is the second particle medium 402, and the particle medium in the sub-cavity 204 without the lattice structure is the third particle medium 403. The first particle medium 401, the second particle medium 402 and the third particle medium 403 may have different sizes and materials, and the particle sizes, materials and other parameters of the first particle medium 401, the second particle medium 402 and the third particle medium 403 may be obtained through simulation experiments.
[0063] In a specific embodiment of the present invention, at least one sub-cavity 204 is not provided with a lattice structure, the sub-cavity 204 without a lattice structure is defined as a first sub-cavity, and the sub-cavity 204 with a lattice structure is defined as a second sub-cavity.
[0064] In this embodiment, the sub-cavity 204 around the first sub-cavity is the second sub-cavity, that is, the first sub-cavity and the second sub-cavity are evenly arranged. The volume of the particle medium in the first sub-cavity can be designed to be larger than the volume of the particle medium in the second sub-cavity. That is, both a larger volume of particle medium and a smaller volume of particle medium are arranged in the particle damper housing 200, and the smaller volume of particle medium is arranged in the sub-cavity 204 with a lattice structure, and the larger volume of particle medium is arranged in the sub-cavity 204 without a lattice structure. The composite cavity type particle damping vibration absorber disclosed in this embodiment can be applied to vibration reduction in micro-vibration environments, and can also be applied to vibration reduction in strong vibration environments, so that its application scenarios are expanded.
[0065] For vibrations in different frequency bands, different lattice structure designs and particle medium arrangements can be used to achieve corresponding vibration reduction. When filling the particle medium, different particle media can be matched with different lattice structures to achieve noise reduction effects in different frequency bands.
[0066] In order to facilitate the installation of composite cavity type particle damping vibration isolator, such as Figure 1 and Figure 2 As shown, at least two sides of the particle damper housing 200 are provided with mounting ear plates 201, and fastening holes 202 for matching fasteners are provided on the mounting ear plates 201, and at least two mounting ear plates 201 are respectively located on opposite sides of the particle damper housing 200. The fastening holes 202 on the mounting ear plates 201 match with the mounting holes reserved on the mounted part (i.e., the ship to be damped, etc.), and the composite cavity type particle damping vibration absorber is fixed on the mounted part through the fasteners. The vibration energy is mainly transmitted to the particle medium in the sub-cavity 204 through the fasteners and the contact surface between the composite cavity type particle damping vibration absorber and the mounted part, and most of the energy is consumed by the particle medium in each sub-cavity 204, thereby achieving the effect of vibration energy reduction.
[0067] Furthermore, there are multiple fastening holes 202 on each mounting ear plate 201, and at least one of them is a circular fastening hole 2022, and at least one is a strip fastening hole 2021. By providing the strip fastening hole 2021, the installation redundancy can be improved, and the installation difficulty caused by the inability to effectively align the mounting holes on the mounted part due to errors can be prevented. During installation, the circular fastening hole 2022 can be aligned with the corresponding mounting hole on the mounted part, and then the strip fastening hole 2021 can be aligned with the other mounting holes on the mounted part. Even if there are errors in the distance and position of each mounting hole on the mounted part, the strip fastening hole 2021 can be guaranteed to be aligned with the corresponding mounting hole to complete the installation of the damping shock absorber.
[0068] In addition, the mounting ear plate 201 can be fixed to the mounted part by fasteners or welding, that is, the edge of the mounting ear plate 201 can be fixed to the mounted part by welding. The mounting ear plate 201 is fixed to the mounting part by fasteners and welding, and a higher connection stability can be obtained. In addition, the mounting ear plate 201 can be fixed to the mounted part by riveting, gluing, and other methods.
[0069] like Fig. 9 As shown in the figure, a conventional particle damping vibration absorber without cavity and a composite cavity particle damping vibration absorber are installed on the vibrating structure. When comparing their vibration reduction effects, at each peak value corresponding to the 0-1000Hz frequency band, the structural acceleration after installing the composite cavity particle damping vibration absorber is significantly lower than the structural acceleration after installing the conventional particle damping vibration absorber without cavity, and has a more superior vibration reduction effect. Since a lattice structure is arranged in the cavity of the composite cavity particle damping vibration absorber, the area of the particle medium contacting the sub-cavity can be increased, so that it can have a better vibration reduction effect in a micro-vibration environment and give full play to its energy dissipation characteristics.
[0070] It should be noted that the various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.
[0071] As shown in this application and claims, unless the context clearly indicates an exception, the words "a", "an", "a kind" and / or "the" do not refer to the singular, but also include the plural. Generally speaking, the terms "include" and "comprise" only indicate the inclusion of clearly identified steps and elements, and these steps and elements do not constitute an exclusive list. The method or device may also include other steps or elements. The elements defined by the sentence "includes a..." do not exclude the existence of other identical elements in the process, method, commodity or device that includes the elements.
[0072] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features.
[0073] This article uses specific examples to illustrate the principles and implementation methods of the utility model. The above examples are only used to help understand the core idea of the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.
Claims
1. A composite cavity type particle damping vibration isolator, characterized in that: include: A particle damper housing (200) has a particle accommodating chamber with an opening on one side, wherein the particle accommodating chamber is divided into a plurality of sub-cavities (204) by a partition (203); A lattice structure, wherein the lattice structure is arranged in at least one of the sub-cavities (204); A particle medium is disposed in each of the sub-cavities (204); A particle damper cover plate (100) is arranged at the opening of the particle containing cavity to close the opening.
2. The composite cavity type particle damping vibration isolator according to claim 1, characterized in that: The structures of the lattice structures in at least two of the sub-cavities (204) are different.
3. The composite cavity type particle damping vibration absorber according to claim 2, characterized in that: The lattice structure in at least one of the sub-cavities (204) is a first lattice structure (301); The lattice structure in at least one of the sub-cavities (204) is a second lattice structure (302); The first lattice structure (301) and the second lattice structure (302) have different lattice structures.
4. The composite cavity type particle damping vibration isolator according to claim 3, characterized in that: The particle medium in the sub-cavity (204) provided with the first lattice structure (301) has the same structure and volume; The particle medium in the sub-cavity (204) provided with the second lattice structure (302) has the same structure and volume; The structure and volume of the particle medium in the sub-cavity (204) where the lattice structure is not provided are the same.
5. The composite cavity type particle damping vibration isolator according to claim 1, characterized in that: The lattice structure is not arranged in at least one of the sub-cavities (204); the sub-cavity (204) not arranged with the lattice structure is a first sub-cavity, and the sub-cavity (204) arranged with the lattice structure is a second sub-cavity; The sub-cavity (204) surrounding the first sub-cavity is the second sub-cavity.
6. The composite cavity type particle damping vibration isolator according to claim 5, characterized in that: The volume of the particle medium in the first sub-cavity is greater than the volume of the particle medium in the second sub-cavity.
7. The composite cavity type particle damping vibration absorber according to any one of claims 1 to 6, characterized in that: The volumes of the sub-cavities (204) are the same; and / or The sub-cavities (204) have the same shape.
8. The composite cavity type particle damping vibration absorber according to any one of claims 1 to 6, characterized in that: At least two sides of the particle damper housing (200) are provided with mounting ear plates (201), and fastening holes (202) for matching fasteners are provided on the mounting ear plates (201), and at least two mounting ear plates (201) are respectively located on two opposite sides of the particle damper housing (200).
9. The composite cavity type particle damping vibration isolator according to claim 8, characterized in that: There are a plurality of fastening holes (202) on each of the mounting ear plates (201), at least one of which is a circular fastening hole (2022) and at least one of which is a strip-shaped fastening hole (2021).
10. The composite cavity type particle damping vibration isolator according to any one of claims 1 to 6, characterized in that: The particle damper cover plate (100) is welded to the opening of the particle containing cavity.