CN113883214A - Magnetism-touch enhanced non-smooth vibration absorber - Google Patents
Magnetism-touch enhanced non-smooth vibration absorber Download PDFInfo
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- CN113883214A CN113883214A CN202111171843.4A CN202111171843A CN113883214A CN 113883214 A CN113883214 A CN 113883214A CN 202111171843 A CN202111171843 A CN 202111171843A CN 113883214 A CN113883214 A CN 113883214A
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- boss
- frame
- movable
- permanent magnet
- mass block
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F13/00—Units comprising springs of the non-fluid type as well as vibration-dampers, shock-absorbers, or fluid springs
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F6/00—Magnetic springs; Fluid magnetic springs, i.e. magnetic spring combined with a fluid
- F16F6/005—Magnetic springs; Fluid magnetic springs, i.e. magnetic spring combined with a fluid using permanent magnets only
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F7/00—Vibration-dampers; Shock-absorbers
- F16F7/10—Vibration-dampers; Shock-absorbers using inertia effect
- F16F7/104—Vibration-dampers; Shock-absorbers using inertia effect the inertia member being resiliently mounted
- F16F7/116—Vibration-dampers; Shock-absorbers using inertia effect the inertia member being resiliently mounted on metal springs
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention provides a magnetic-impact reinforced non-smooth vibration absorber, which relates to the technical field of vibration absorbers and comprises the following components: the device comprises a frame, a fixed boss, a movable boss, a compression spring, a mass block, an extension spring, a hanging lug, a guide rail, a first permanent magnet and a second permanent magnet; the inner walls of the top and the bottom of the frame are respectively provided with a fixed lug boss; an extension spring is arranged between the left side and the right side of the mass block and the inner wall of the frame, and the fixed boss is connected with the movable boss through a compression spring; the top and the bottom of the mass block are both provided with a first permanent magnet; a second permanent magnet is arranged on one surface, facing the top of the mass block, of the movable boss close to the top of the frame; a second permanent magnet is arranged on one surface, facing the bottom of the mass block, of the movable boss close to the bottom of the frame; and a guide rail is arranged between the top and the bottom of the frame. The technical problem that the nonlinear vibration absorber fails due to overlarge external excitation in the prior art can be solved through the method and the device, and the effective application range of the nonlinear vibration absorber is widened.
Description
Technical Field
The invention relates to the technical field of vibration absorbers, in particular to a magnetic-impact reinforced non-smooth vibration absorber.
Background
When the vibration absorber has the nonlinear characteristic, in the application process, the whole vibration system is subjected to bifurcation phenomenon due to excessive external excitation, so that long-time stable large-amplitude vibration is generated, and the vibration absorber fails, and the nonlinear vibration absorber can only be effective in a smaller excitation amplitude range. The magnetoelastic unit can destroy the stability of stable vibration by a wide margin to restrain the emergence of harmful bifurcation phenomenon, the collision unit can produce the energy consumption, further promotes the damping effect when the external excitation is too big. During use, the magnetoelastic unit and the collision unit are activated in sequence with increasing external excitation.
In summary, in the prior art, there is a technical problem that the nonlinear vibration absorber fails due to excessive external excitation, and the effective use range of the nonlinear vibration absorber is greatly widened by using the magnetoelastic unit and the collision unit.
Disclosure of Invention
In view of the above, the present invention provides a magnetic-impact reinforced non-smooth vibration absorber to alleviate the technical problem of failure of the non-linear vibration absorber due to excessive external excitation in the prior art, and to widen the effective application range of the non-linear vibration absorber.
The invention provides a magnetic-impact reinforced non-smooth vibration absorber, which comprises: the device comprises a frame, a fixed boss, a movable boss, a compression spring, a mass block, an extension spring, a hanging lug, a guide rail, a first permanent magnet and a second permanent magnet;
the frame is detachably connected with the shell;
the number of the fixed bosses and the number of the movable bosses are two;
the inner walls of the top and the bottom of the frame are respectively provided with one fixing lug boss;
the number of the compression springs and the number of the extension springs are two;
the extension spring is arranged between the left side of the mass block and the inner wall of the left side of the frame;
the extension spring is arranged between the right side of the mass block and the inner wall of the right side of the frame;
the fixed boss arranged on the top of the frame is connected with one movable boss through a compression spring;
the fixed boss arranged at the bottom of the frame is connected with the other movable boss through a compression spring;
the top and the bottom of the mass block are both provided with the first permanent magnet;
the second permanent magnet is arranged on one surface, facing the top of the mass block, of the movable boss close to the top of the frame, and the second permanent magnet and the first permanent magnet arranged on the top of the mass block are in polarity repulsion;
the second permanent magnet is arranged on one surface, facing the bottom of the mass block, of the movable boss close to the bottom of the frame, and the second permanent magnet and the first permanent magnet arranged at the bottom of the mass block are in polarity repulsion;
install between the top of frame and the bottom the guide rail, the guide rail passes in proper order from last to being close to down the frame top fixed boss compression spring the activity boss the quality piece the activity boss compression spring, be close to the frame bottom fixed boss.
Preferably, the device further comprises a shell;
the shell with the frame can be dismantled and be connected, the shell adopts plastics material.
Preferably, the utility model also comprises a hanging ear,
the inner walls of the left side and the right side of the mass block and the inner walls of the left side and the right side of the frame are provided with the hangers;
the hangers are used for connecting the frame, the extension spring and the mass block.
Preferably, the housing is connected with the frame by screw threads.
Preferably, the centers of the fixed boss, the mass block and the movable boss are provided with through holes, and the through holes are used for the guide rail to penetrate through the through holes of the fixed boss, the mass block and the movable boss.
Preferably, the movable boss and the fixed boss are in threaded connection with the compression spring.
Preferably, two threaded holes are formed in the side faces of the fixed boss and the movable boss, and an included angle between the central points of the two threads on the side face of the fixed boss and the central point connecting line of the section of the fixed boss where the central points of the two threads on the side face of the fixed boss are located is 90 degrees;
the included angle between the central points of the two threads on the side surface of the movable boss and the central point connecting line of the section of the movable boss where the central points of the two threads on the side surface of the movable boss are located is 90 degrees;
one end of the compression spring is sleeved into the movable boss, the other end of the compression spring is sleeved into the fixed boss, and the fixed boss and the threaded hole in the side face of the fixed boss are respectively used for connecting the fixed boss and the compression spring, and connecting the compression spring and the movable boss.
The surface of the movable boss contacted with the second permanent magnet is circular and is provided with four through holes, the distance from each through hole of the movable boss to the central shaft of the movable boss is equal, and the through holes of the movable boss are uniformly distributed on the movable boss.
The embodiment of the invention has the following beneficial effects: the invention provides a magnetic-impact reinforced non-smooth vibration absorber, which comprises: the device comprises a frame, a fixed boss, a movable boss, a compression spring, a mass block, an extension spring, a hanging lug, a guide rail, a first permanent magnet and a second permanent magnet; the number of the fixed bosses and the number of the movable bosses are two; the inner walls of the top and the bottom of the frame are respectively provided with a fixed lug boss; the number of the compression springs and the extension springs is two; an extension spring is arranged between the left side of the mass block and the inner wall of the left side of the frame; an extension spring is arranged between the right side of the mass block and the inner wall of the right side of the frame; the fixed boss arranged on the top of the frame is connected with a movable boss through a compression spring; the fixed boss arranged at the bottom of the frame is connected with the other movable boss through a compression spring; the top and the bottom of the mass block are both provided with a first permanent magnet; a second permanent magnet is arranged on one surface, facing the top of the mass block, of the movable boss close to the top of the frame, and the second permanent magnet and the first permanent magnet arranged on the top of the mass block are in polarity repulsion; a second permanent magnet is arranged on one surface, facing the bottom of the mass block, of the movable boss close to the bottom of the frame, and the polarity of the second permanent magnet is repellent to that of the first permanent magnet arranged at the bottom of the mass block; a guide rail is arranged between the top and the bottom of the frame, and the guide rail sequentially penetrates through a fixed boss, a compression spring, a movable boss, a mass block, a movable boss, a compression spring and a fixed boss close to the bottom of the frame from top to bottom. The technical problem that the nonlinear vibration absorber fails due to overlarge external excitation in the prior art can be solved through the method and the device, and the effective application range of the nonlinear vibration absorber is widened.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a structural diagram of a magnetic-impact reinforced non-smooth vibration absorber according to an embodiment of the present invention;
fig. 2 is a front view of a magnetic-impact enhanced non-smooth vibration absorber according to an embodiment of the present invention;
fig. 3(a) is a left side view of a magnetic-impact strengthening device of a magnetic-impact strengthening type non-smooth vibration absorber according to an embodiment of the present invention;
fig. 3(b) is a left side view of a magnetic-impact strengthening device of a magnetic-impact strengthening type non-smooth vibration absorber according to an embodiment of the present invention;
fig. 3(c) is a top view of a magnetic-impact strengthening device of a magnetic-impact strengthening type non-smooth vibration absorber according to an embodiment of the present invention.
Icon: 1-frame; 2, fixing a boss; 3, compressing the spring; 4-movable bosses; 5-a second permanent magnet; 6-a first permanent magnet; 7-mass block; 8, stretching a spring; 9-guide rail; 10 portions to the shell.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
At present, when the vibration absorber has a nonlinear characteristic, in an application process, an excessive external excitation can cause a bifurcation phenomenon of a whole vibration system, so that stable and large-amplitude vibration for a long time is generated, and further the vibration absorber fails, so that the problem that the nonlinear vibration absorber can only be effective in a smaller excitation amplitude range is solved.
For the understanding of the present embodiment, first, a detailed description will be given of a magnetic-impact enhanced type non-smooth vibration absorber disclosed in the embodiments of the present invention,
the first embodiment is as follows:
with reference to fig. 1, fig. 2, fig. 3(a), fig. 3(b), and fig. 3(c), a magnetic-impact enhanced non-smooth vibration absorber according to an embodiment of the present invention includes: the device comprises a frame (1), a fixed boss (2), a movable boss (4), a compression spring (3), a mass block (7), an extension spring (8), a hanging lug, a guide rail (9), a second permanent magnet (5) and a first permanent magnet (6);
the number of the fixed bosses (2) and the number of the movable bosses (4) are two;
furthermore, the inner walls of the top and the bottom of the frame (1) are respectively provided with one fixing lug boss (2);
the number of the compression springs (3) and the number of the extension springs (8) are both two;
when the external excitation amplitude is increased to a certain degree, the mass block (7) makes reciprocating motion,
the extension spring (8) is arranged between the left side of the mass block (7) and the inner wall of the left side of the frame (1);
the extension spring (8) is arranged between the right side of the mass block (7) and the inner wall of the right side of the frame (1);
the fixed boss (2) arranged at the top of the frame (1) is connected with the movable boss (4) through a compression spring (3);
the fixed boss (2) arranged at the bottom of the frame (1) is connected with the other movable boss (4) through a compression spring (3);
the top and the bottom of the mass block (7) are both provided with the first permanent magnet (6);
the second permanent magnet (5) is arranged on one surface, facing the top of the mass block (7), of the movable boss (4) close to the top of the frame (1), and the second permanent magnet and the first permanent magnet (6) arranged on the top of the mass block (7) have opposite polarities;
furthermore, the polarities of the two second permanent magnets (5) can be repulsive or attractive;
the second permanent magnet (5) is arranged on one surface, facing the bottom of the mass block (7), of the movable boss (4) close to the bottom of the frame (1), and the second permanent magnet and the first permanent magnet (6) arranged at the bottom of the mass block (7) have opposite polarities;
install between the top of frame (1) and the bottom guide rail (9), guide rail (9) are from last to passing in proper order down and being close to frame (1) top fixed boss (2) compression spring (3) activity boss (4) quality piece (7) activity boss (4) compression spring (3) be close to frame (1) bottom fixed boss (2).
Therefore, the mass block (7) can move up and down along the guide rail (9);
in the embodiment provided by the invention, the device further comprises a shell (10);
the shell (10) is detachably connected with the frame (1), and the shell (10) is made of plastic materials.
In a further embodiment of the present invention, the material of the housing (10) should have high strength, and the housing (10) is connected to the frame (1) by a screw thread;
preferably, the utility model also comprises a hanging ear,
the inner walls of the left side and the right side of the mass block (7) and the inner walls of the left side and the right side of the frame (1) are provided with the hangers;
the hanging lug is used for connecting the frame (1), the extension spring (8) and the mass block (7).
Preferably, the centers of the fixed boss (2), the mass block (7) and the movable boss (4) are provided with through holes, and the through holes are used for the guide rail (9) to pass through the through holes of the fixed boss (2), the mass block (7) and the movable boss (4).
Therefore, the hole diameters of the through holes in the centers of the fixed boss (2), the mass block (7) and the movable boss (4) are larger than the section diameter of the guide rail (9);
preferably, the movable boss (4) and the fixed boss (2) are in threaded connection with the compression spring (3).
Preferably, two threaded holes are formed in the side surfaces of the fixed boss (2) and the movable boss (4), and the included angle between the central points of the two threads on the side surface of the fixed boss (2) and the central point connecting line of the section of the fixed boss (2) where the central points of the two threads on the side surface of the fixed boss (2) are located is 90 degrees;
the included angle between the central points of the two threads on the side surface of the movable boss (4) and the central point connecting line of the section of the movable boss (4) where the central points of the two threads on the side surface of the movable boss (4) are located is 90 degrees;
one end of the compression spring (3) is sleeved into the movable boss (4), the other end of the compression spring (3) is sleeved into the fixed boss (2), and threaded holes in the side faces of the fixed boss (2) and the movable boss (4) are respectively used for connecting the fixed boss (2) with the compression spring (3) and connecting the compression spring (3) with the movable boss (4).
The surface, contacted with the second permanent magnet (5), of the movable boss (4) is circular and is provided with four through holes, each through hole of the movable boss (4) is equal to the distance between the central shafts of the movable bosses (4), and the through holes of the movable bosses (4) are uniformly distributed on the movable bosses (4).
Furthermore, the included angle between the central point of the adjacent through hole on the plane of the movable boss (4) and the connecting line of the central points of the planes of the movable bosses (4) is 90 degrees;
example two:
the embodiment explains the principle of the vibration absorber provided by the invention, when the vibration energy of the vibration-damped structure is transferred to the vibration absorber, the mass block (7) performs frictional sliding along the guide rail (9), and a friction pair formed by the mass block (7) and the guide rail (9) generates frictional dissipation energy; the two extension springs (8) can generate pure cubic nonlinear stiffness, and the pure cubic nonlinear stiffness enables the vibration absorber to have broadband vibration absorption capacity; when the amplitude of the mass block (7) is small, the mass block (7) slides slightly between the two movable bosses (4), and at the moment, the two pairs of permanent magnets do not generate magnetic repulsion force due to too long distance or the generated repulsion force is negligibly small; when the amplitude of the mass block (7) is gradually increased, the second permanent magnet (5) starts to generate magnetic repulsion with the first permanent magnet (6);
on one hand, the magnetic repulsion force can limit the displacement of the mass block (7) to a certain degree, and on the other hand, the magnetic repulsion force can enable the movable boss (4) to move so as to construct a time-varying magnetic field capable of changing response stability. When the amplitude of the mass block (7) continues to increase, the compression spring (3) is further compressed, the movable boss (4) and the fixed boss (2) can collide, energy can be consumed by collision, the resonance frequency of a vibration system can be slightly improved, and the two functions can play a role in strengthening the vibration reduction effect; therefore, the vibration amplitude of the mass block (7) can be gradually increased along with the increase of external excitation, when the external excitation is smaller, only the vibration absorption unit formed by the mass block (7) and the extension spring (8) has the vibration absorption effect, the external excitation is increased to a certain degree, the magnetic unit formed by the movable boss (4), the second permanent magnet (5) and the first permanent magnet (6) has the adjusting effect, after the external excitation is further increased, the vibration absorption effect is further strengthened by the collision unit formed by the movable boss (4) and the fixed boss (2), and along with the increase of the external excitation, the magnetic unit and the collision unit are sequentially added, so that the vibration absorber provided by the invention can have a good vibration absorption effect in a larger excitation amplitude range.
Further, in some embodiments, the present invention may continue to perform similar functions with a simplified structure, such as removing four permanent magnets, changing the magnetic unit into a bump unit that may perform a relatively weak effect close to the magnetic unit;
the device provided by the embodiment of the present invention has the same implementation principle and technical effect as the method embodiments, and for the sake of brief description, reference may be made to the corresponding contents in the method embodiments without reference to the device embodiments.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the system and the apparatus described above may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In addition, in the description of the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Finally, it should be noted that: the above-mentioned embodiments are only specific embodiments of the present invention, which are used for illustrating the technical solutions of the present invention and not for limiting the same, and the protection scope of the present invention is not limited thereto, although the present invention is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: any person skilled in the art can modify or easily conceive the technical solutions described in the foregoing embodiments or equivalent substitutes for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the embodiments of the present invention, and they should be construed as being included therein. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (8)
1. A magnetic-impact enhanced non-smooth vibration absorber, comprising: the device comprises a frame, a fixed boss, a movable boss, a compression spring, a mass block, an extension spring, a hanging lug, a guide rail, a first permanent magnet and a second permanent magnet;
the number of the fixed bosses and the number of the movable bosses are two;
the inner walls of the top and the bottom of the frame are respectively provided with one fixing lug boss;
the number of the compression springs and the number of the extension springs are two;
the extension spring is arranged between the left side of the mass block and the inner wall of the left side of the frame;
the extension spring is arranged between the right side of the mass block and the inner wall of the right side of the frame;
the fixed boss arranged on the top of the frame is connected with one movable boss through a compression spring;
the fixed boss arranged at the bottom of the frame is connected with the other movable boss through a compression spring;
the top and the bottom of the mass block are both provided with the first permanent magnet;
the second permanent magnet is arranged on one surface, facing the top of the mass block, of the movable boss close to the top of the frame, and the second permanent magnet and the first permanent magnet arranged on the top of the mass block are in polarity repulsion;
the second permanent magnet is arranged on one surface, facing the bottom of the mass block, of the movable boss close to the bottom of the frame, and the second permanent magnet and the first permanent magnet arranged at the bottom of the mass block are in polarity repulsion;
install between the top of frame and the bottom the guide rail, the guide rail passes in proper order from last to being close to down the frame top fixed boss compression spring the activity boss the quality piece the activity boss compression spring, be close to the frame bottom fixed boss.
2. The vibration absorber of claim 1 further comprising a housing;
the shell with the frame can be dismantled and be connected, the shell adopts plastics material.
3. The vibration absorber of claim 1 further comprising a suspension loop,
the inner walls of the left side and the right side of the mass block and the inner walls of the left side and the right side of the frame are provided with the hangers;
the hangers are used for connecting the frame, the extension spring and the mass block.
4. The vibration absorber of claim 2 wherein said housing is threadably connected to said frame.
5. The vibration absorber of claim 1 wherein said stationary boss, said mass, and said movable boss each have a through hole in the center thereof for a guide rail to pass through said through holes of said stationary boss, said mass, and said movable boss.
6. The vibration absorber of claim 1 wherein said movable boss and said fixed boss are each threadably connected to said compression spring.
7. The vibration absorber as claimed in claim 1, wherein the side surfaces of the fixed boss and the movable boss are provided with two threaded holes, and the central point of the two threads on the side surface of the fixed boss forms an included angle of 90 ° with the connecting line of the central points of the cross sections of the fixed boss where the central points of the two threads on the side surface of the fixed boss are located;
the included angle between the central points of the two threads on the side surface of the movable boss and the central point connecting line of the section of the movable boss where the central points of the two threads on the side surface of the movable boss are located is 90 degrees;
one end of the compression spring is sleeved into the movable boss, the other end of the compression spring is sleeved into the fixed boss, and the fixed boss and the threaded hole in the side face of the fixed boss are respectively used for connecting the fixed boss and the compression spring, and connecting the compression spring and the movable boss.
8. The vibration absorber as claimed in claim 1, wherein the contact surface of the movable boss with the second permanent magnet is circular and has four through holes, and each of the through holes of the movable boss has an equal distance to the central axis of the movable boss, and the through holes of the movable boss are uniformly distributed in the movable boss.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111171843.4A CN113883214A (en) | 2021-10-08 | 2021-10-08 | Magnetism-touch enhanced non-smooth vibration absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111171843.4A CN113883214A (en) | 2021-10-08 | 2021-10-08 | Magnetism-touch enhanced non-smooth vibration absorber |
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| Publication Number | Publication Date |
|---|---|
| CN113883214A true CN113883214A (en) | 2022-01-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111171843.4A Pending CN113883214A (en) | 2021-10-08 | 2021-10-08 | Magnetism-touch enhanced non-smooth vibration absorber |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114810895A (en) * | 2022-04-26 | 2022-07-29 | 天津理工大学 | Sectional type bumps bullet intensive type non-smooth bump leveller |
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2021
- 2021-10-08 CN CN202111171843.4A patent/CN113883214A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114810895A (en) * | 2022-04-26 | 2022-07-29 | 天津理工大学 | Sectional type bumps bullet intensive type non-smooth bump leveller |
| CN114810895B (en) * | 2022-04-26 | 2023-08-29 | 天津理工大学 | Sectional type bump ball enhanced non-smooth vibration absorber |
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