Induction damping device of steel enclosure structure

By building a non-uniform magnetic field between the column support steel components of the steel structure factory, and using electromagnetic induction to transform the vibration mechanical energy into heat, the problem of vibration deformation of the column support steel components is solved, and the effect of material saving and structural lightweighting is achieved.

CN119801154AActive Publication Date: 2025-04-11ANHUI CONCH DESIGN & RES INST OF BUILDING MATERIALS CO LTD +1
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Patent Information

Application Number
CN202510087553.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-01-20
Publication Date
2025-04-11
Estimated Expiration
2045-01-20

AI Technical Summary

Technical Problem

The column-sill supporting steel components of steel structure buildings are deformed greatly under vibrating loads, which is difficult to meet the stiffness requirements, resulting in waste of materials and increased structural self-weight.

Method used

A non-uniform magnetic field is constructed between two adjacent columns. The supporting steel members between the columns generate instantaneous current when vibrating in this magnetic field. The vibration mechanical energy is converted into heat through electromagnetic induction to achieve vibration damping effect.

Benefits of technology

This method can effectively suppress the vibration of the column-supporting steel components, reduce the amount of material, reduce the structure's own weight, and achieve a safe, economical, green and environmentally friendly vibration-absorbing effect.

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Abstract

The invention discloses a steel retaining structure induction damping device which is characterized in that the steel retaining structure induction damping device comprises stand columns (2), inter-column supporting steel members (3) located between every two adjacent stand columns (2) and magnetic materials (1) fixedly connected with the stand columns (2); the magnetic materials (1) on every two adjacent stand columns (2) are arranged in a one-to-one correspondence mode, and the magnetic pole directions of the magnetic materials (1) in one-to-one correspondence are opposite. The two magnetic materials (1) in one-to-one correspondence are arranged in a staggered mode in the section direction of the stand column (2). According to the induction damping device for the steel enclosure structure, a non-uniform magnetic field can be constructed between every two adjacent stand columns, instantaneous current is generated when the inter-column supporting steel members vibrate in the non-uniform magnetic fields, and therefore harmful mechanical energy of vibration is converted into heat through electromagnetic induction to be dissipated, and the damping effect on the inter-column supporting steel members is achieved.
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Description

Technical Field

[0001] The invention relates to the technical field of steel structure vibration reduction, and in particular to an induction vibration reduction device for a steel enclosure structure. Background Art

[0002] Steel structure factory building is a type of building that uses steel as the main structural material and is composed of steel frames, steel beams, steel columns and other components. It is widely used in industrial production, warehousing, logistics, commerce and other fields.

[0003] Steel structure factories are the main structural form of heavy and large-span industrial buildings, and are often subjected to frequent vibration loads. In order to meet the requirements of industrial production process, such steel structures often have large bays and spans, so a large number of roof supports, column supports and other column support steel components are required.

[0004] In structural design, compared with main load-bearing components such as beams and columns, the loads borne by these inter-column support steel components are relatively small, and the strength calculation is often redundant; but due to the large support distance, most of these components are slender rods with low stiffness. Under the action of vibration load, the deformation is much greater than that of the main components. The support structure that meets the strength requirements often cannot meet the stiffness requirements. Therefore, during the design, the cross-sectional size of these inter-column support steel components will be increased or the support will be encrypted to reduce deformation. However, these two methods will greatly increase the material consumption, so that the strength of the steel structure material cannot be fully exerted, resulting in material waste, and will also lead to the problem of increased deadweight of the steel structure. Summary of the invention

[0005] The purpose of the present invention is to provide an induction vibration reduction device for a steel enclosure structure, which can construct a non-uniform magnetic field between two adjacent columns. When the inter-column supporting steel member vibrates in the non-uniform magnetic field, an instantaneous current is generated, thereby converting the harmful mechanical energy of the vibration into heat dissipation through electromagnetic induction, thereby achieving a vibration reduction effect on the inter-column supporting steel member.

[0006] In order to achieve the above-mentioned object, the present invention provides an induction vibration reduction device for a steel enclosure structure, the induction vibration reduction device for a steel enclosure structure comprises a column, an inter-column support steel member located between two adjacent columns, and a magnetic material fixedly connected to the column;

[0007] The magnetic materials on two adjacent columns are arranged in one-to-one correspondence, and the magnetic poles of the one-to-one corresponding magnetic materials are in opposite directions;

[0008] The two magnetic materials corresponding to each other are staggeredly arranged along the cross-sectional direction of the pillar.

[0009] Preferably, the magnetic material is eccentrically arranged, and one and only one end of the magnetic material extends beyond the boundary of the column;

[0010] The two corresponding magnetic materials extend toward the inside and outside of the pillar respectively.

[0011] Preferably, a plurality of magnetic materials corresponding to the magnetic materials of adjacent columns are arranged on the column.

[0012] Preferably, the pillars are provided in plurality.

[0013] Preferably, the one-to-one corresponding magnetic materials on two adjacent columns are set as a group of magnetic materials;

[0014] There are at least two groups of magnetic materials on the same column.

[0015] Preferably, on the same column, the magnetic pole directions of any two magnetic materials in the same group of magnetic materials are set to be the same.

[0016] Preferably, on the same column, the magnetic materials belonging to different groups of magnetic materials are staggeredly distributed along the circumference of the column.

[0017] Preferably, the magnetic material is distributed in a spiral manner along the height direction of the column.

[0018] Preferably, on the same column, the magnetism of two magnetic materials adjacent to each other along the height direction repels each other.

[0019] According to the above technical scheme, the present invention utilizes the principle that when a metal conductor moves irregularly in a non-uniform magnetic field, an instantaneous motional current is generated due to electromagnetic induction, and then it is acted upon by the Ampere force, and the Ampere force prevents the movement of the conductor. By constructing a non-uniform magnetic field between two adjacent columns, the vibration reduction effect of the inter-column supporting steel structure between the two columns can be achieved.

[0020] When the inter-column support steel structure is in a uniform magnetic field environment and vibrates, the magnetic flux in several planes enclosed by the inter-column support steel structure will change. Therefore, an instantaneous induced current will be generated in the vibrating inter-column support steel structure, causing the inter-column support steel structure to be subjected to the Ampere force. According to Lenz's law, the effect of the Ampere force will hinder the movement of the conductor in the magnetic field. Since in a non-uniform magnetic field environment, the Ampere forces at various locations of the inter-column support steel structure cannot offset each other, the total effect of the Ampere forces at various locations on the inter-column support steel structure is to rapidly attenuate its vibration. From an energy perspective, the harmful mechanical energy of the inter-column support steel structure's own vibration is utilized, and through electromagnetic induction, these mechanical energies are converted into electrical energy and then converted into heat and dissipated into the environment.

[0021] Since the inter-column support steel member itself is a good conductor and has good grounding protection, it will not accumulate charges. Therefore, the method of constructing a non-uniform magnetic field environment can suppress the vibration of the inter-column support steel member 3, and the whole process does not consume any additional energy, which is safe, economical, green and environmentally friendly.

[0022] The steel enclosure structure induction vibration reduction device needs to design the distribution state of the magnetic material based on the on-site steel structure distribution. By reasonably setting the position of the magnetic material, the component is located in the non-uniform magnetic field between the two columns 2, so that when the inter-column supporting steel component vibrates, the magnetic flux in several planes enclosed by the inter-column supporting steel component changes, thereby generating instantaneous current and forming an Ampere force to prevent its vibration.

[0023] The magnetic materials on two adjacent columns are arranged in a one-to-one correspondence, and the two opposite surfaces of the two corresponding magnetic materials are respectively arranged as the N pole and the S pole, that is, the magnetic poles of the two corresponding magnetic materials are in opposite directions. Magnetic flux lines are generated between the two corresponding magnetic materials, and the direction of the magnetic flux lines is from the N pole to the S pole, passing through the area between the two columns. Preferably, the heights of the two corresponding magnetic materials are consistent, and the magnetic flux lines are distributed in the horizontal direction.

[0024] By arranging two one-to-one corresponding magnetic materials in an offset manner, a non-uniform magnetic field can be formed between the two columns, in which the magnetic flux lines are not parallel to the plane where the inter-column supporting steel member is located. The vibration of the inter-column supporting steel member can be regarded as a translation or rotation around the axis along the normal direction of the plane where the inter-column supporting steel member is located. When the inter-column supporting steel member is displaced in the non-uniform magnetic field between the two columns, the magnetic flux of several closed planes enclosed by the inter-column supporting steel member will change. Since these closed planes of good conductors are all composed of good conductors, these closed surfaces will spontaneously form loops with the surrounding steel structures. Therefore, the inter-column supporting steel member will be subject to multiple Ampere forces that prevent it from vibrating during the vibration process. According to Lenz's law, the effect of these Ampere forces will hinder the change of magnetic flux in several closed planes enclosed by the inter-column supporting steel members, thereby hindering the vibration of the inter-column supporting steel members. In addition, along the length direction of the inter-column supporting steel members, the size and direction of these Ampere forces at different positions of the inter-column supporting steel members are not exactly the same, but the overall effect is to hinder relative motion. Therefore, under the joint action of these Ampere forces, the vibration of the inter-column supporting steel members will rapidly decay until it returns to a state of equilibrium.

[0025] Other features and advantages of the present invention will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present invention but do not constitute a limitation of the present invention. In the accompanying drawings:

[0027] Figure 1 It is a schematic diagram of the distribution of magnetic materials and magnetic flux lines on two adjacent columns;

[0028] Figure 2 It is a schematic diagram of the distribution mode of magnetic materials and the plane projection of magnetic flux lines of a steel enclosure structure induction vibration reduction device;

[0029] Figure 3 It is a schematic diagram of the front elevation projection of the magnetic flux lines in two adjacent columns;

[0030] Figure 4 It is a one-to-one correspondence between the distribution of magnetic materials, the distribution of magnetic flux lines, and the plane projection diagram of the forces on the rod when it vibrates;

[0031] Figure 5 Several closed conductor frames formed when the structure vibrates and simplified translation and rotational motion models when the structure vibrates;

[0032] Figure 6 It is a schematic diagram of the distribution of magnetic materials adjacent to each other in the height direction on the same column, the direction of magnetic poles and the distribution of magnetic flux lines.

[0033] Description of Reference Numerals

[0034] 1 magnetic material 2 columns

[0035] 3. Supporting steel members between columns 4. Connection plates DETAILED DESCRIPTION

[0036] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present invention, and is not used to limit the present invention.

[0037] In the present invention, unless otherwise stated, directional words contained in terms such as "adjacent, relative, offset, circumferential, vertical, between" merely represent the orientation of the term in normal use, or are common names understood by those skilled in the art, and should not be regarded as limitations on the term.

[0038] An inductive vibration reduction device for a steel enclosure structure, the inductive vibration reduction device for a steel enclosure structure comprises a column 2, an inter-column support steel member 3 located between two adjacent columns 2, and a magnetic material 1 fixedly connected to the column 2;

[0039] The magnetic materials 1 on two adjacent pillars 2 are arranged one by one, and the magnetic poles of the magnetic materials 1 are in opposite directions in the one-to-one correspondence;

[0040] Two corresponding magnetic materials 1 are arranged in a staggered manner along the cross-sectional direction of the pillar 2 .

[0041] Through the implementation of the above technical solution, the principle that when a metal conductor moves irregularly in a non-uniform magnetic field, an instantaneous motional current is generated due to electromagnetic induction, and then it is affected by the Ampere force, and the Ampere force prevents the movement of the conductor is utilized. By constructing a non-uniform magnetic field between two adjacent columns 2, the vibration reduction effect of the inter-column supporting steel member 3 between the two columns 2 can be achieved.

[0042] When the inter-column support steel member 3 is in a uniform magnetic field environment and vibrates, the magnetic flux in several planes enclosed by the inter-column support steel member 3 will change. Therefore, an instantaneous induced current will be generated in the vibrating inter-column support steel member 3, so that the inter-column support steel member 3 is subjected to the Ampere force. According to Lenz's law, the effect of the Ampere force will hinder the movement of the conductor in the magnetic field. Since in a non-uniform magnetic field environment, the Ampere forces at various locations of the inter-column support steel member 3 cannot offset each other, but the total effect of the Ampere forces at various locations on the inter-column support steel member 3 is to rapidly attenuate its vibration. From the perspective of energy, the harmful mechanical energy of the vibration of the inter-column support steel member 3 itself is utilized, and through electromagnetic induction, these mechanical energies are converted into electrical energy and then converted into heat and dissipated in the environment.

[0043] Since the inter-column support steel member 3 is a good conductor and has good grounding protection, it will not accumulate charges. Therefore, the method of constructing a non-uniform magnetic field environment can suppress the vibration of the inter-column support steel member 3, and the whole process does not consume any additional energy, which is safe, economical, green and environmentally friendly.

[0044] The induction vibration reduction device of the steel enclosure structure needs to design the distribution state of the magnetic material 1 based on the distribution of the steel structure on site. By reasonably setting the position of the magnetic material 1, the component is located in the non-uniform magnetic field between the two columns 2, so that when the inter-column supporting steel component 3 vibrates, the magnetic flux in several planes enclosed by the inter-column supporting steel component 3 changes, thereby generating instantaneous current and forming an Ampere force to prevent its vibration.

[0045] The magnetic materials 1 on two adjacent columns 2 are arranged in a one-to-one correspondence, and the two opposite surfaces of the two corresponding magnetic materials 1 are respectively arranged as the N pole and the S pole, that is, the magnetic poles of the two corresponding magnetic materials 1 are in opposite directions. Magnetic flux lines are generated between the two corresponding magnetic materials, and the direction of the magnetic flux lines is from the N pole to the S pole, passing through the area between the two columns 2. Preferably, the heights of the two corresponding magnetic materials 1 are consistent, and the magnetic flux lines are distributed in the horizontal direction.

[0046] By arranging two one-to-one corresponding magnetic materials 1 in an offset manner, a non-uniform magnetic field can be formed between the two columns 2, in which the magnetic flux lines are not parallel to the plane where the inter-column supporting steel member 3 is located. The vibration of the inter-column supporting steel member 3 can be regarded as a translation or rotation around the axis along the normal direction of the plane where the inter-column supporting steel member 3 is located. When the inter-column supporting steel member 3 is displaced in the non-uniform magnetic field between the two columns 2, the magnetic flux of several closed planes enclosed by the inter-column supporting steel member 3 will change. Since these closed planes of good conductors are all composed of good conductors, these closed surfaces will spontaneously form a loop with the surrounding steel structure. Therefore, the inter-column supporting steel member 3 will be subjected to multiple Ampere forces that prevent it from vibrating during the vibration process. According to Lenz's law, the effect of these Ampere forces will hinder the change of magnetic flux in several closed planes enclosed by the inter-column supporting steel members 3, thereby hindering the vibration of the inter-column supporting steel members 3. In addition, along the length direction of the inter-column supporting steel members 3, the sizes and directions of these Ampere forces at different positions of the inter-column supporting steel members 3 are not exactly the same, but the overall effect is to hinder relative motion. Therefore, under the joint action of these Ampere forces, the vibration of the inter-column supporting steel members 3 will rapidly decay until it returns to a state of equilibrium.

[0047] In this embodiment, preferably, the magnetic material 1 is eccentrically arranged, and one and only one end of the magnetic material 1 extends beyond the boundary of the pillar 2;

[0048] Two corresponding magnetic materials 1 extend toward the inside and outside of the pillar 1 respectively.

[0049] Since the magnetic poles of the two magnetic materials 1 are opposite, that is, the two opposite surfaces of the two magnetic materials 1 are respectively set as the N pole and the S pole, a non-uniform magnetic field can be effectively constructed by eccentrically setting the magnetic materials 1. When the two corresponding magnetic materials 1 extend toward the inside and outside of the pillar 1 respectively, as shown in FIG. Figure 4 As shown, the magnetic flux lines between the two magnetic materials 1 will not be parallel to the inter-column support steel member 3, so the magnetic induction intensity (magnetic flux density) at different positions will be different. At the same time, when the rod vibrates, due to the constraints on the edges, the movement speed of the middle of the rod will be greater than that of the ends of the rod, so a potential difference will be generated at different positions, and then an induced current and Ampere force will be generated. According to Lenz's law, the effect of the Ampere force in the inter-column support steel member 3 will generally hinder the vibration of the inter-column support steel member 3.

[0050] By setting the magnetic material 1 to extend beyond the boundary of the column 2, not only can a non-uniform magnetic field be constructed between two adjacent columns 2, but also the range of the non-uniform magnetic field can be expanded so that the non-uniform magnetic field can cover the area outside the boundary of the column 2. When the inter-column support steel member 3 vibrates to a position beyond the boundary of the column 2, it can still be affected by the Ampere force, and the force is sufficient to quickly restore the inter-column support steel member 3 that vibrates beyond the boundary of the steel structure to a balanced position.

[0051] In this embodiment, preferably, a plurality of magnetic materials 1 corresponding to the magnetic materials 1 of adjacent columns 2 are arranged on the column 2 .

[0052] like Figure 1 As shown, the magnetic poles of the magnetic materials 1 corresponding to each other on two adjacent columns 2 are opposite and at the same height, so as to generate a magnetic field at the level of magnetic flux lines between the two columns 2. A plurality of magnetic materials 1 corresponding to each other on the same column 2 are arranged, and these magnetic materials 1 are located at different heights, so that a magnetic field can exist along the height direction of the column 2, so that the inter-column supporting steel member 3 can be subjected to the effect of a non-uniform magnetic field at all locations along the length direction during the vibration process.

[0053] Preferably, the magnetic material 1 is arranged at periodic intervals along the height direction of the pillar 2, so that the magnetic field between the two pillars 2 is stronger at the position close to the magnetic material 1 and weaker at the position far away from the magnetic material 1. By arranging the magnetic material 1 distributed at periodic intervals along the height direction, a non-uniform magnetic field with a regularly distributed magnetic field strength along the height direction of the pillars 2 can be constructed between two adjacent pillars 2.

[0054] Preferably, the magnetic material 1 is arranged to be denser in the middle position near the height direction of the column 2, and to be sparser in the position near the two ends of the column 2. By gradually sparsely ...

[0055] Furthermore, by arranging two one-to-one corresponding magnetic materials 1 at the same height as the ends of the inter-column supporting steel members 3 , the end vibrations of the inter-column supporting steel members 3 are effectively suppressed, thereby achieving rapid suppression of the vibrations of the inter-column supporting steel members 3 .

[0056] In this embodiment, preferably, a plurality of pillars 2 are provided.

[0057] In the steel structure of a factory, many columns 2 are usually arranged, and any two adjacent columns 2 can be provided with a plurality of magnetic materials facing each other.

[0058] In this embodiment, preferably, the one-to-one corresponding magnetic materials 1 on two adjacent pillars 2 are set as a group of magnetic materials;

[0059] There are at least two groups of magnetic materials on the same column 2.

[0060] When there are multiple pillars 2 and magnetic materials 1 are arranged one by one between any two adjacent pillars 2 , there are at least two groups of magnetic materials 1 on the same pillar 2 .

[0061] like Figure 2 As shown, when the column 2 is set at a corner, the column 2 is adjacent to only two columns 2, so two groups of magnetic materials are set on the column 2. When the column 2 is located at other positions except the corner, there are three columns 2 adjacent to it, so these columns are usually provided with three groups of magnetic materials.

[0062] In this embodiment, preferably, on the same column 2, the magnetic pole directions of any two magnetic materials 1 in the same group of magnetic materials are set to be the same.

[0063] The magnetic field constructed by a group of magnetic materials on two adjacent columns 2 has the same direction of magnetic flux lines, so that the inter-column supporting steel member 3 can obtain the maximum change of magnetic flux during the vibration process, thereby avoiding the loss of magnetic flux lines in different directions during the vibration process, which affects the vibration reduction effect.

[0064] In this embodiment, preferably, on the same column 2 , magnetic materials 1 belonging to different groups of magnetic materials are staggeredly distributed along the circumference of the column 2 .

[0065] Since multiple groups of magnetic materials are arranged on the pillar 2 , and each group of magnetic materials is opposite to different other pillars 2 , different groups of magnetic materials 1 are located on different vertical surfaces of the pillar 2 .

[0066] In this embodiment, preferably, the magnetic material 1 is distributed in a spiral shape along the height direction of the pillar 2 .

[0067] In order to avoid mutual influence between different groups of magnetic materials 1, on the same column 2, other groups of magnetic materials between two adjacent magnetic materials 1 belonging to the same group of magnetic materials are arranged at intervals. Preferably, other groups of magnetic materials between two adjacent magnetic materials 1 belonging to the same group of magnetic materials are evenly distributed between the two adjacent magnetic materials 1 of the same group.

[0068] In one embodiment, the distance between any two adjacent magnetic materials 1 in the same group of magnetic materials 1 located on the same column 2 is equal, so the multiple magnetic materials located on the same column 2 are repeated periodically along the height direction. Since these magnetic materials 1 belonging to different groups are staggered along the circumference of the column 2, these magnetic materials 1 are distributed in a spiral shape along the height direction of the column 2, and the pitch is consistent.

[0069] In another embodiment, the magnetic materials 1 in the same group of magnetic materials 1 located on the same column 2 are densely distributed near the middle height of the column 2, while the magnetic materials 1 near the two ends of the column 2 are sparsely distributed. Similarly, since the magnetic materials 1 belonging to different groups are staggered along the circumference of the column 2, these magnetic materials 1 on the column 2 are spirally distributed along the height direction of the column 2, and the pitch gradually increases from the middle to the two ends.

[0070] In this embodiment, preferably, on the same column 2, the magnetism of two magnetic materials 1 adjacent to each other along the height direction repels each other.

[0071] like Figure 6 As shown, on the same column 2 , the magnetic forces of two magnetic materials 1 adjacent to each other in the height direction repel each other, so that fewer magnetic flux lines pass through the column 2 , and accordingly, more magnetic flux lines are distributed between the two columns 2 .

[0072] Based on the principle that when a metal conductor moves irregularly in a non-uniform magnetic field, an instantaneous induced current will be generated due to electromagnetic induction, and then it will be affected by the Ampere force, and the Ampere force will prevent the magnetic flux in the conductor frame from changing, a non-uniform magnetic field is constructed between two adjacent columns 2. When the inter-column supporting steel member 3 is in the non-uniform magnetic field environment and vibrates, the magnetic flux in several conductor frames passing through the inter-column supporting steel member 3 will change. Therefore, an instantaneous induced current will be generated in the vibrating inter-column supporting steel member 3, and multiple positions on the inter-column supporting steel member 3 will be affected by multiple Ampere forces in different directions. According to Lenz's law, the effect of these Ampere forces will hinder the movement of the conductor in the magnetic field. Therefore, the effect of these Ampere forces on the inter-column supporting steel member 3 is to rapidly attenuate its vibration.

[0073] From the energy point of view, the harmful mechanical energy of the vibration of the inter-column supporting steel member 3 is utilized, and through electromagnetic induction, this mechanical energy is converted into electrical energy and then converted into heat and dissipated into the environment.

[0074] Preferably, the steel enclosure structure induction vibration reduction device uses common ferrite hard magnetic material as the magnetic material 1.

[0075] Ordinary ferrite hard magnetic materials such as ferrite magnetic tiles have a magnetic permeability of μ≈5000μ0, and the magnetic induction intensity generated around them is B≈0.05-0.5T (Tesla). The frequency of mechanical vibration in heavy industrial plants is generally high, and the instantaneous rate of vibration can generally reach 0.7-1.0mm / s. Take a 5-meter-long ordinary steel structure H-shaped steel HW300 x 300 rod as a column support steel member 3 as an example, L=5.0m, cross-sectional area S=134.8cm 2 The motional electromotive force generated in the magnetic field is about E=BLV≈3.5x10-2~3.5x10-3 V, and the resistivity of ordinary rod steel material is about ρ=9.78x 10-8Ωm. It can be calculated that the resistance of the rod is about R=ρL / S≈0.36x 10-4Ω, and the Ampere force generated is about F=B2·L2·V / R≈1.73—173.6N (Newton). Since the component is in a complex non-uniform magnetic field, all its actual Ampere forces are forces in multiple directions, and the overall effect is to prevent vibration from occurring. The result of the combined force will cause the vibration to decay rapidly, thereby achieving the purpose of vibration reduction.

[0076] Based on the above calculations, it can be seen that since the resistance of the inter-column supporting steel structure 3 is very small, the use of ordinary ferrite hard magnetic materials can achieve the construction of a non-uniform magnetic field, and can produce a maximum force of about 200N. Therefore, the use of ordinary ferrite hard magnetic materials can achieve sufficient vibration reduction effect.

[0077] In the actual production process, during the construction of the steel structure, the inter-column support steel member 3 is usually set to be four rods connected by the connecting plate 4, such as Figure 1 As shown in the figure, when the forced vibration is generated by the operation of the equipment, the amplitude of the middle part is larger and the amplitude of the edge part is smaller. It can be regarded as four conductor frames rotating around the axis, such as Figure 5 As shown, these conductor frames will generate induced current when they translate or rotate in the non-uniform magnetic field. The whole structure is equivalent to several parallel power supplies. Since the cross-section of these rods is much larger than that of general wires and they are connected in parallel, the total resistance of the inter-column support steel member 3 is very low. Therefore, in actual use, the current passing through the inter-column support steel member 3 is larger, so during the vibration process, the inter-column support steel member 3 can receive greater resistance to obtain a better vibration reduction effect.

[0078] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, a variety of simple modifications can be made to the technical solution of the present invention, and these simple modifications all belong to the protection scope of the present invention.

[0079] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations.

[0080] In addition, various embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the present invention, they should also be regarded as the contents disclosed by the present invention.

Claims

1. A steel enclosure structure induction vibration reduction device, characterized in that: The steel enclosure structure induction vibration reduction device comprises a column (2), an inter-column support steel member (3) located between two adjacent columns (2), and a magnetic material (1) fixedly connected to the column (2); The magnetic materials (1) on two adjacent columns (2) are arranged in a one-to-one correspondence, and the magnetic poles of the one-to-one corresponding magnetic materials (1) are in opposite directions; The two magnetic materials (1) corresponding to each other are arranged in a staggered manner along the cross-sectional direction of the pillar (2).

2. The induction vibration reduction device for steel enclosure structure according to claim 1 is characterized in that: The magnetic material (1) is eccentrically arranged, and one and only one end of the magnetic material (1) extends beyond the boundary of the column (2); The two corresponding magnetic materials (1) extend towards the inside and outside of the pillar (1) respectively.

3. The induction vibration reduction device for steel enclosure structure according to claim 2 is characterized in that: The pillar (2) is provided with a plurality of magnetic materials (1) corresponding one-to-one to the magnetic materials (1) of adjacent pillars (2).

4. The induction vibration reduction device for steel enclosure structure according to claim 3 is characterized in that: The upright posts (2) are arranged in plurality.

5. The induction vibration reduction device for steel enclosure structure according to claim 4 is characterized in that: The one-to-one corresponding magnetic materials (1) on two adjacent columns (2) are arranged as a group of magnetic materials; There are at least two groups of magnetic materials on the same column (2).

6. The induction vibration reduction device for steel enclosure structure according to claim 5 is characterized in that: On the same column (2), the magnetic pole directions of any two magnetic materials (1) in the same group of magnetic materials are set to be the same.

7. The induction vibration reduction device for steel enclosure structure according to claim 6 is characterized in that: On the same column (2), the magnetic materials (1) belonging to different groups of magnetic materials are staggered and distributed along the circumference of the column (2).

8. The induction vibration reduction device for steel enclosure structure according to claim 7 is characterized in that: Along the height direction of the column (2), the magnetic material (1) is distributed in a spiral manner.

9. The induction vibration reduction device for steel enclosure structure according to claim 8 is characterized in that: On the same column (2), the magnetism of two magnetic materials (1) adjacent to each other in the height direction repels each other.

Citation Information

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