Hybrid suspension isolation device and method of installation
By combining electro-permanent magnet and electromagnetic levitation modules, a hybrid suspension isolation device has been developed, which solves the problems of insufficient economy and control precision of large foundation platforms in existing technologies. It achieves efficient and low-cost seismic isolation and structural stability, and is applicable to the field of civil engineering.
Patent Information
- Application Number
- CN202310507798.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-05-08
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2043-05-08
AI Technical Summary
Existing suction-type conventional electromagnetic levitation vibration isolation devices are economically unreasonable, difficult to design and construct, and lack control precision and stability when used on large foundation platforms. In particular, they are difficult to lift and costly during periods when vibration control is not required.
A hybrid suspension vibration isolation device combining an electro-permanent magnet levitation module and an electromagnetic levitation module is used. By setting an electro-permanent magnet component below the armature, the armature is lifted by the combined electro-permanent magnet force and electromagnetic levitation force, thereby achieving active vibration isolation control of the controlled structure. The design of the guide rod and the cantilever lug improves the structural stability of the device.
It achieves high control precision and good vibration isolation effect, reduces the cost of the device, improves the stability of the structure and the ease of installation, and is suitable for large foundation platforms in civil engineering.
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Figure CN116447262B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of vibration isolation device technology, and in particular to an electromagnetic + electro-permanent magnet hybrid suspension vibration isolation device and its installation method. Background Technology
[0002] Magnetic levitation vibration isolation is a new type of active vibration isolation method. It has been successfully applied in aerospace, railway transportation, wind power generation and other fields, but it has not yet been used in the civil engineering field.
[0003] Electromagnetic field theory shows that the magnetic force between electromagnets is inversely proportional to the square of the gap between them and directly proportional to the square of the current ampere-turns. To obtain sufficient electromagnetic levitation force using conventional electromagnetic technology, the current must be increased or the gap must be reduced. Increasing the current inevitably requires a larger levitation device and higher costs.
[0004] Existing suction-type conventional electromagnetic levitation vibration isolation devices typically have a buoyancy-to-weight ratio of 10:1. For major foundation platform engineering structures weighing hundreds of tons, this necessitates devices weighing tens of tons, which is economically impractical and presents significant design and construction difficulties. During the majority of the operating time in projects where vibration control is not required, the armature rests on the foundation of the civil structure, and the gap between the armature and the electromagnet suspended by the suspension structure on the foundation is the largest, requiring the highest current for buoyancy. In contrast, in stable levitation conditions requiring vibration control, the gap is small and the current is low, making buoyancy the most challenging aspect and demanding lower vibration control precision. Summary of the Invention
[0005] The purpose of this invention is to overcome the defects of the prior art and provide a permanent magnet hybrid suspension vibration isolation device and its installation method that have high control precision, good vibration isolation effect and low cost.
[0006] The objective of this invention can be achieved through the following technical solutions:
[0007] According to a first aspect of the present invention, a hybrid suspension vibration isolation device is provided, which is installed between a foundation and a structural column. The device includes an electro-permanent magnet levitation module, an electromagnetic levitation module, and a support structure.
[0008] The supporting structure includes platform columns fixed to the platform and symmetrically arranged on both sides of the suspension component, with a platform column tie beam erected between the two platform columns;
[0009] The electromagnetic levitation module includes an armature and an electromagnet suspended and fixed on the tie beam of the support column, which is used to provide an upward attraction for the armature when levitation is in operation.
[0010] The electro-permanent magnet levitation module is mounted on the support platform and below the electromagnetic levitation module. The electro-permanent magnet levitation module is symmetrically arranged, with the lower part fixed on the support platform and the upper part fixed to the armature, which provides an upward repulsive force to the armature when the levitation is working.
[0011] The horizontal transfer structure, consisting of an armature column fixed above the armature and an armature column tie beam fixed between the two armature columns, transfers the resultant force on the armature to the structural column to provide upward levitation lift, thereby achieving suspension and seismic isolation.
[0012] Preferably, the electro-permanent magnet levitation module includes a magnet body, an electro-permanent magnet coil, a reversible magnet, electro-permanent magnet poles, and a fixed magnet; wherein, the electro-permanent magnet coil is wound around the outer circumference of the reversible magnet, the reversible magnet and the electro-permanent magnet poles are stacked vertically, and the fixed magnet fixes the electro-permanent magnet poles to the magnet body; the electro-permanent magnet coil is also connected to an electro-permanent magnet power supply and an electro-permanent magnet control cabinet respectively.
[0013] Preferably, the electro-permanent magnet levitation module is fixed horizontally, specifically: the magnet body has a cantilevered lug fixed around its perimeter, and the guide rod passes through the cantilevered lug and is fixed to the support platform.
[0014] Preferably, the length of the guide rod is such that it is inside the pick-ear when the device is levitating and working, and does not touch the armature when the device is not levitating and not working; the guide rod is provided with a limit structure.
[0015] Preferably, a magnetic shielding plate is provided between the electro-permanent magnet levitation module and the armature.
[0016] Preferably, the electromagnet has a coil wound around it, and the electromagnet is symmetrically suspended and fixed to the tie beam of the support column by a hanger; the coil is connected to an electromagnetic power supply and an electromagnetic control cabinet respectively.
[0017] Preferably, the armature is made of a magnetic material, while the foundation column and the foundation column tie beam are made of non-magnetic materials, and the armature column and the armature column tie beam are made of non-magnetic materials.
[0018] The structure consisting of the foundation column and the foundation column tie beam is symmetrical with the electromagnet and its strength and stiffness meet the set requirements. The structure consisting of the armature column and the armature column tie beam is symmetrical with the armature and its strength and stiffness meet the set requirements.
[0019] The horizontal transfer structure composed of the armature column and tie beam meets the stress requirements of the raised structural column.
[0020] Preferably, the specifications and quantities of each component in the electro-permanent magnet levitation module and the electromagnetic levitation module specifically include:
[0021] The cross-sectional dimensions of the electromagnet, the cross-sectional dimensions of the armature, the number of turns and winding diameter of the coil, the power supply voltage and current, the attraction force of the electromagnetic levitation module during operation, and...
[0022] The electro-permanent magnet levitation module includes a magnet body, an electro-permanent magnet coil, a reversible magnet, an electro-permanent magnet pole, a fixed magnet, a power supply voltage and current, and the repulsive force of the electro-permanent magnet levitation module during operation.
[0023] The following condition must be met: the sum of the attractive and repulsive forces must be greater than the required bottom force of the column in the controlled structure.
[0024] The total vertical bearing capacity of the foundation column should be greater than the bottom force requirement of the controlled structural column, and the total vertical bearing capacity of the armature column should be greater than the bottom force requirement of the controlled structural column.
[0025] Preferably, the centers of the electro-permanent magnet levitation module, the armature, and the electromagnet are all aligned.
[0026] According to a second aspect of the present invention, an installation method for the hybrid suspension vibration isolation device is provided, the method comprising the following steps:
[0027] Step S1: Based on the project conditions and control standards, calculate the specifications and quantities of each component in the electro-permanent magnet levitation module and the electromagnetic levitation module, as well as the specifications of the foundation column and foundation column tie beam, armature column and armature column tie beam.
[0028] Step S2: Install the embedded plate at the corresponding position of the foundation and pour the foundation concrete;
[0029] Step S3: Arrange the electro-permanent magnet levitation modules in pairs on the support platform and fix them horizontally;
[0030] Step S4: Fix the foundation column to the embedded plate at the construction site, fix the foundation column tie beam to the foundation column, and fix the electromagnet to the foundation column tie beam.
[0031] Step S5: Place the armature on the electro-permanent magnet levitation module;
[0032] Step S6: Fix the armature post to the armature and fix the armature post tie beam to the armature post;
[0033] Step S7: Construct a horizontal transfer structure on the armature column tie beam, and fix the controlled structural column to the horizontal transfer structure;
[0034] Step S8: Connect the designed power supply and control system.
[0035] Compared with the prior art, the present invention has the following advantages:
[0036] 1) This invention combines electromagnetic technology and electro-permanent magnet technology. Pairs of electro-permanent magnet groups are set below the armature. The repulsive force generated by the electro-permanent magnet force is superimposed with the attractive force generated by the electromagnetic levitation to lift the armature and drive the upper structure away from the support platform, thereby realizing active vibration isolation control of the controlled structure. Compared with the single levitation technology, the control accuracy is high and the vibration isolation effect is better.
[0037] 2) In this invention, the armature serves as the foundation of the superstructure (the controlled structure). During the normal time period, that is, most of the time when the project does not require vibration control, it is placed on the foundation of the civil engineering structure. Compared with the magnetic levitation high-speed rail technology, the cost is low.
[0038] 3) The matching arrangement of the guide rod and the cantilever lugs enables the electro-permanent magnet levitation module to be fixed horizontally, which improves the effectiveness of vertical force bearing and also enhances the structural stability of the device.
[0039] 4) The two sets of support structure frames designed in this invention are connected to the foundation and the controlled structural column respectively, so that the electro-permanent magnet repulsion force and the electromagnetic levitation attraction force work together, which increases the structural stability of the suspension vibration isolation device.
[0040] 5) This invention provides a specific installation method for the hybrid suspension vibration isolation device, which makes installation more convenient. Attached Figure Description
[0041] Figure 1 This is a side view of the electromagnet of the present invention;
[0042] Figure 2 This is a cross-sectional view (1-1) of the electromagnet of the present invention;
[0043] Figure 3 This is a side view of the support column frame of the present invention;
[0044] Figure 4 This is a sectional view (2-2) of the foundation column frame of the present invention;
[0045] Figure 5 This is a top view of the foundation column frame of the present invention;
[0046] Figure 6 This is a top view of the armature of the present invention;
[0047] Figure 7 This is a side view of the armature of the present invention;
[0048] Figure 8 This is a side view (3-3) of the armature column frame of the present invention;
[0049] Figure 9 This is a side view (4-4) of the armature column frame of the present invention;
[0050] Figure 10 This is a cross-sectional view of the device of the present invention in a suspended state (during an earthquake);
[0051] Figure 11 This is a cross-sectional view of the device of the present invention in its non-suspended state (normal state);
[0052] Figure 12 This is a diagram showing the relationship between the armature and the electro-permanent magnet levitation module of the present invention;
[0053] Figure 13 This is a cross-sectional view of the electro-permanent magnet levitation module of the present invention in its levitation state (during an earthquake);
[0054] Figure 14 This is a cross-sectional view of the electro-permanent magnet levitation module of the present invention in its non-levitation state (normal state).
[0055] Reference numerals: 1. Armature; 11. Magnetic shielding plate; 2. Electromagnet; 21. Hanger; 3. Coil; 31. Electromagnetic power supply; 32. Electromagnetic control cabinet; 4. Foundation column; 41. Foundation column tie beam; 5. Structural column; 6. Armature column; 61. Armature column tie beam; 7. Electro-permanent magnet levitation module; 71. Magnet body; 72. Electro-permanent magnet coil; 721. Electro-permanent magnet power supply; 722. Electro-permanent magnet control cabinet; 73. Reversible magnet; 74. Electro-permanent magnet pole; 75. Fixed magnet; 8. Guide rod; 81. Cantilever lug; 9. Foundation; 91. Embedded plate; 92. Anchor. Detailed Implementation
[0056] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.
[0057] Example 1
[0058] This embodiment provides a hybrid suspension vibration isolation device, which is installed between the foundation 9 and the structural column 5. The device includes an electro-permanent magnet suspension module 7, an electromagnetic suspension module, and a supporting structure.
[0059] The supporting structure includes pedestal columns 4 fixed to the pedestal 9 and symmetrically arranged on both sides of the suspension component, and a pedestal column tie beam 41 is built between the two pedestal columns;
[0060] The electromagnetic levitation module includes an armature 1 and an electromagnet 2 suspended and fixed on the tie beam 41 of the support column, which provides an upward attraction to the armature 1 when the levitation is working.
[0061] The electro-permanent magnet levitation module 7 is set on the support platform 9 and below the electromagnetic levitation module; the electro-permanent magnet levitation module 7 is symmetrically arranged, with the lower part fixed on the support platform 9 and the upper part fixed to the armature 1, and is used to provide an upward repulsive force to the armature 1 when levitation is working.
[0062] The horizontal transfer structure, consisting of the armature column 6 fixed above the armature 1 and the armature column tie beam 61 fixed between the two armature columns 6, transfers the resultant force on the armature 1 to the structural column 5 to provide upward levitation lift and achieve suspension isolation.
[0063] Next, an embodiment of the method of the present invention is given, an installation method for a hybrid suspension vibration isolation device, the method comprising the following steps:
[0064] Step S1: Based on the project conditions and control standards, calculate the specifications and quantities of each component in the electro-permanent magnet levitation module 7 and the electromagnetic levitation module 2, as well as the specifications of the support column 4 and the support column tie beam 41, the armature column 6 and the armature column tie beam 61.
[0065] Step S2: Install the embedded plate 91 at the corresponding position of the foundation 9, and pour the concrete for the foundation 9;
[0066] Step S3: Arrange the electro-permanent magnet levitation modules 7 in pairs on the support platform 9 and fix them horizontally;
[0067] Step S4: At the construction site, fix the foundation column 4 to the embedded plate 91, fix the foundation column tie beam 41 to the foundation column 4, and fix the electromagnet 2 to the foundation column tie beam 41.
[0068] Step S5: Place armature 1 on electro-permanent magnet levitation module 7;
[0069] Step S6: Fix the armature post 6 to the armature 1, and fix the armature post tie beam 61 to the armature post 6;
[0070] Step S7: Construct a horizontal transfer structure on the armature column tie beam 61, and fix the controlled structural column 5 to the horizontal transfer structure;
[0071] Step S8: Connect the designed power supply and control system.
[0072] Example 2
[0073] This embodiment presents a magnetic hybrid levitation seismic isolation device and its installation method. By combining electro-permanent magnet and electromagnetic technologies, it achieves active control of structural vibration. When an earthquake occurs, the levitation attraction generated by the electromagnetic device, combined with the repulsive force generated by the electro-permanent magnet pair, exceeds the bottom force of the controlled structural column. The armature then drives the structural column and the upper structure to levitate, and the controlled structure is thus unaffected by external vibrations.
[0074] Next, the device and installation method of the present invention will be described in detail with reference to the accompanying drawings.
[0075] A hybrid suspension vibration isolation device is installed between the controlled structural column 5 and the bearing platform 9, and includes an electromagnetic suspension module and an electro-permanent magnet suspension module 7.
[0076] Among them, the electro-permanent magnet levitation module 7 is located on the surface of the support platform 9, and the armature 1 of the electromagnetic levitation module is located below the magnet body 71 and the armature 1. A magnetic shielding plate 11 is provided between the magnet body 71 and the armature 1.
[0077] The electro-permanent magnet levitation module 7 consists of a pair of identical components, symmetrically arranged, with a guide rod 8 inserted between the electro-permanent magnet levitation module 7 and the support platform 9;
[0078] The electromagnetic levitation module includes an electromagnet 2 and an armature 1. The electromagnet 2 is suspended from the tie beam 41 of the support column via a hanger 21. Figures 3-5 As shown, the tie beam 41 of the pier column is fixed to the pier column 4, and the pier column 4 is fixed to the pier 9.
[0079] Structural column 5 is fixed to the transfer structure composed of armature column tie beam 61, armature column tie beam 61 is fixed to armature column 6, and armature column 6 is fixed to armature 1. The armature structure is as follows: Figures 6-9 As shown
[0080] The electro-permanent magnet levitation module 7 is connected to the electro-permanent magnet power supply 721 and the electro-permanent magnet control cabinet 722, and the electromagnetic device is connected to the electromagnetic power supply 31 and the electromagnetic control cabinet 32. The gap generated by the electro-permanent magnet device 7 when energized, and the gap generated by the electromagnetic levitation module when energized, the individual sizes of the two gaps and the sum of the two gaps should meet the vibration control requirements.
[0081] The electro-permanent magnet levitation module 7 includes:
[0082] The system comprises a magnet body 71, an electro-permanent magnet coil 72, a reversible magnet 73, an electro-permanent magnet pole 74, a fixed magnet 75, an electro-permanent magnet power supply 721, and an electro-permanent magnet control cabinet 722; wherein, the magnet body 71 is made of a non-magnetic material, the reversible magnet 73 is made of AlNiCo or other reversible magnets, the electro-permanent magnet pole 74 is made of a magnetic material, and the fixed magnet 75 is made of Neodymium Iron Boron or other fixed magnets.
[0083] The magnet body 71 is fixed with lugs 81 around its perimeter. A guide rod 8 passes through the lugs 81 and is fixed to the support platform 9. Both the lugs 81 and the guide rod 8 are made of non-magnetic materials. The length of the guide rod 8 should be such that it remains within the lugs 81 when the device is levitating and in operation, and does not touch the armature 1 when the device is not levitating and in operation. The magnetic shielding plate is made of non-magnetic material, and its upper and lower surfaces have low coefficients of friction.
[0084] The electromagnetic levitation module includes:
[0085] Electromagnet 2 is U-shaped or E-shaped, with coil 3 wound around it. Electromagnet 2 is symmetrically suspended from the support column tie beam 41. Both the support column 4 and the support column tie beam 41 are made of non-magnetic material. The structure formed by the support column 4 and the support column tie beam 41 is symmetrical to the electromagnet 2 and possesses sufficient strength and rigidity. Figures 1-2 This is a schematic diagram of an electromagnet.
[0086] The armature 1 is made of magnetic material, and an armature post 6 is fixed on the armature 1. The armature post 6 and the armature post tie beam 61 are both made of non-magnetic material. The structure composed of the armature post 6 and the armature post tie beam 61 is symmetrical with the armature 1 and has sufficient strength and rigidity.
[0087] Electromagnet 2 is aligned with the center of armature 1. The center of the electro-permanent magnet device is aligned with the center of the armature.
[0088] Structural column 5 is fixed to the horizontal transfer structure composed of armature column tie beam 61. The transfer structure should meet the stress requirements of lifting structural column 5.
[0089] The specifications and quantities of each component in the 7-component electro-permanent magnet device and the electromagnetic levitation module are as follows:
[0090] The cross-sectional dimensions of electromagnet 2, the cross-sectional dimensions of armature 1, the number of turns and winding diameter of coil 3, the power supply voltage and current, the electromagnetic attraction force generated during operation, and so on.
[0091] The electro-permanent magnet device 7 includes a magnet body 71, an electro-permanent magnet coil 72, a reversible magnet 73, electro-permanent magnet poles 74, a fixed magnet 75, a power supply voltage and current, and the repulsive force generated by the electro-permanent magnet device 7 during operation.
[0092] The sum of the attractive and repulsive forces should be greater than the required bottom force of the column in the controlled structure.
[0093] The total vertical bearing capacity of the foundation column 4 should be greater than the bottom force requirement of the controlled structural column, and the total vertical bearing capacity of the armature column 6 should be greater than the bottom force requirement of the controlled structural column.
[0094] Figure 10 and Figure 11 These are cross-sectional views of the device in its suspended state (during an earthquake) and in its non-suspended state (in normal conditions), respectively. Figure 12 This is a diagram showing the relationship between the armature and the electro-permanent magnet levitation module.
[0095] The following is a method embodiment of the present invention: an installation method for a hybrid suspension vibration isolation device, the method comprising the following steps:
[0096] Step S1: Based on the project conditions and control standards, calculate the specifications and quantities of each component in the electro-permanent magnet device 7 and electromagnet 2 components, calculate the foundation column 4 and foundation column tie beam 41, calculate the armature column 6 and armature column tie beam 61, etc.
[0097] Step S2: Install the embedded plate 91 at the corresponding position of the foundation 9, and pour the concrete for the foundation 9;
[0098] Step S3: Weld the guide rod 8 onto the embedded plate 91 or pre-embed the guide rod 8 in step S2;
[0099] Step S4: Place the factory-made electro-permanent magnet devices 7 in pairs on the support platform, and insert the guide rod 8 into the lug 81;
[0100] Step S5: Fix the foundation column 4 to the embedded plate 91 at the construction site, fix the foundation column tie beam 41 to the foundation column 4, and fix the electromagnet 2 to the foundation column tie beam 41 through the hanger 21.
[0101] Step S6: Place armature 1 on electro-permanent magnet device 7, with their centers aligned;
[0102] Step S7: Fix the armature post 6 to the armature 1, and fix the armature post tie beam 61 to the armature post 6;
[0103] Step S8: Construct a horizontal transfer structure on the armature column tie beam 61, and fix the controlled structural column 5 to the horizontal transfer structure;
[0104] Step S9: Connect the designed power supply and control system, etc.
[0105] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and these modifications or substitutions should all be covered within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.
Claims
1. A hybrid suspension seismic isolation device, installed between a foundation (9) and a structural column (5), characterized in that, The device includes an electro-permanent magnet levitation module (7), an electromagnetic levitation module, and a support structure; The supporting structure includes a base column (4) fixed to the base (9) and symmetrically arranged on both sides of the suspension component, and a base column tie beam (41) is built between the two base columns. The electromagnetic levitation module includes an armature (1) and an electromagnet (2) suspended and fixed on the tie beam (41) of the support column, which provides an upward attraction to the armature (1) when the levitation is working. The electro-permanent magnet levitation module (7) is set on the support platform (9) and below the electromagnetic levitation module; the electro-permanent magnet levitation module (7) is symmetrically arranged, with the lower part fixed on the support platform (9) and the upper part fixed to the armature (1), and is used to provide an upward repulsive force to the armature (1) when levitation is working; The horizontal conversion structure, consisting of the armature column (6) fixed above the armature (1) and the armature column tie beam (61) fixed between the two armature columns (6), applies the resultant force on the armature (1) to the structural column (5) to provide upward levitation lift and achieve levitation isolation. The electro-permanent magnet levitation module (7) includes a magnet body (71), an electro-permanent magnet coil (72), a reversible magnet (73), an electro-permanent magnet pole (74), and a fixed magnet (75); wherein, the electro-permanent magnet coil (72) is wound around the outer periphery of the reversible magnet (73), the reversible magnet (73) and the electro-permanent magnet pole (74) are stacked vertically, and the fixed magnet (75) fixes the electro-permanent magnet pole (74) to the magnet body (71); the electro-permanent magnet coil (72) is also connected to an electro-permanent magnet power supply (721) and an electro-permanent magnet control cabinet (722). The electro-permanent magnet levitation module (7) is fixed horizontally, specifically: the magnet body (71) is fixed with a lug (81) around its perimeter, and the guide rod (8) passes through the lug (81) and is fixed to the support platform (9). The electromagnet (2) has a coil (3) wound around it. The electromagnet (2) is symmetrically suspended and fixed on the tie beam (41) of the support column by a hanger (21). The coil (3) is connected to the electromagnetic power supply (31) and the electromagnetic control cabinet (32) respectively. The armature (1) is made of magnetic material, the foundation column (4) and the foundation column tie beam (41) are made of non-magnetic material, and the armature column (6) and the armature column tie beam (61) are made of non-magnetic material. The structure composed of the foundation column (4) and the foundation column tie beam (41) is symmetrical to the electromagnet (2) and its strength and stiffness meet the set requirements. The structure composed of the armature column (6) and the armature column tie beam (61) is symmetrical to the armature (1) and its strength and stiffness meet the set requirements. The horizontal transfer structure composed of the armature column tie beam (61) meets the stress requirements of the lifting structural column (5).
2. The hybrid suspension vibration isolation device according to claim 1, characterized in that, The length of the guide rod (8) is such that it is within the ear (81) when the device is levitating and working, and does not touch the armature (1) when the device is not levitating and not working; the guide rod (8) is provided with a limit structure.
3. The hybrid suspension vibration isolation device according to claim 1, characterized in that, A magnetic shielding plate (11) is provided between the electro-permanent magnet levitation module (7) and the armature (1).
4. The hybrid suspension vibration isolation device according to claim 1, characterized in that, The specifications and quantities of each component in the electro-permanent magnet levitation module (7) and the electromagnetic levitation module specifically include: The cross-sectional dimensions of the electromagnet (2), the cross-sectional dimensions of the armature (1), the number of turns and winding diameter of the coil (3), the power supply voltage and current, the attraction force of the electromagnetic levitation module during operation, and The electro-permanent magnet levitation module (7) includes a magnet body (71), an electro-permanent magnet coil (72), a reversible magnet (73), an electro-permanent magnet pole (74), a fixed magnet (75), a power supply voltage and current, and the repulsive force of the electro-permanent magnet levitation module (7) during operation; The following condition must be met: the sum of the attractive and repulsive forces must be greater than the required bottom force of the column in the controlled structure. The total vertical bearing capacity of the foundation column (4) should be greater than the bottom force requirement of the controlled structural column, and the total vertical bearing capacity of the armature column (6) should be greater than the bottom force requirement of the controlled structural column.
5. A hybrid suspension vibration isolation device according to claim 1, characterized in that, The centers of the electro-permanent magnet levitation module (7), armature (1), and electromagnet (2) are all aligned.
6. A method for installing the hybrid suspension vibration isolation device according to any one of claims 1 to 5, characterized in that, The method includes the following steps: Step S1: Based on the engineering conditions and control standards, calculate the specifications and quantities of each component in the electro-permanent magnet levitation module (7) and electromagnet (2), as well as the specifications of the pier column (4) and pier column tie beam (41), armature column (6) and armature column tie beam (61). Step S2: Install the embedded plate (91) at the corresponding position on the foundation (9) and pour the concrete for the foundation (9); Step S3: Place the electro-permanent magnet levitation modules (7) in pairs on the support platform (9) and fix them horizontally; Step S4: Fix the foundation column (4) to the embedded plate (91) at the construction site, fix the foundation column tie beam (41) to the foundation column (4), and fix the electromagnet (2) to the foundation column tie beam (41). Step S5: Place the armature (1) on the electro-permanent magnet levitation module (7); Step S6: Fix the armature post (6) to the armature (1) and fix the armature post tie beam (61) to the armature post (6); Step S7: Construct a horizontal transfer structure on the armature column tie beam (61) and fix the controlled structural column (5) to the horizontal transfer structure; Step S8: Connect the designed power supply and control system.
Citation Information
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