A new type of self-resetting energy-absorbing support device

Abstract

The present invention provides a novel self-resetting energy-absorbing support device, comprising a first steel tube and a second steel tube provided at both ends of a support tube from the outside to the inside, the first steel tube and the second steel tube being sleeved together, a first elastic component, a second elastic component and a magnetorheological fluid chamber being sequentially connected in the support tube from the second steel tube to the first steel tube, the second elastic component being provided in the first elastic component, a partition being fixedly connected to the end of the first steel tube near the second steel tube, one end of the first elastic component being fixed to the second steel tube, and the other end being movably connected to the first steel tube, one end of the second elastic component being fixed to the second steel tube, and the other end being movably connected to the first steel tube, after the first steel tube passes through the magnetorheological fluid chamber, one end is connected to the second steel tube, and the other end extends out of the support tube. This device can effectively improve energy dissipation performance through multi-layer energy dissipation and shock-absorbing devices. At the same time, different energy dissipation structures can cope with different vibration intensities, thereby achieving multi-level and layered energy dissipation effects.

Description

Technical Field

[0001] The present invention relates to the technical field of energy dissipation and vibration reduction of building structures, and in particular to a novel self-resetting energy dissipation support device. Background Art

[0002] Currently, new self-resetting, energy-dissipating support systems are gaining increasing attention in the field of contemporary architectural design. When large buildings are exposed to extreme natural disasters such as earthquakes, they must not only ensure structural safety but also enhance their self-recovery capabilities. Therefore, new self-resetting, energy-dissipating support systems, with their superior seismic performance and self-recovery capabilities, are becoming a crucial component of modern building design. They cleverly combine self-reset and energy-dissipating functions, creating a structural support system that dissipates energy during an earthquake and quickly recovers afterward. During an earthquake, the energy-dissipating elements effectively absorb and dissipate the seismic energy input, converting the impact of the seismic waves into heat or other forms of energy dissipation, significantly reducing the destructive impact on the main structure.

[0003] However, the existing self-resetting energy-absorbing support system has problems such as a single energy-absorbing structure, the memory alloy is greatly affected by temperature, the starting force is large, and it is impossible to take into account the performance requirements under different vibration intensities, which in turn affects the overall system's energy-absorbing performance.

[0004] In view of this, the present invention is proposed. Summary of the Invention

[0005] The purpose of the present invention is to overcome the shortcomings of the above-mentioned prior art. This device can effectively improve the energy consumption performance of the device by designing multi-layer energy dissipation and shock absorption devices. At the same time, different energy dissipation structures can cope with different vibration intensities and realize multi-level layered energy consumption. The self-powered design enables the device to work normally in extreme environments. These designs can effectively improve the reliability of the device in earthquakes and protect people's lives and property to the greatest extent.

[0006] The present invention provides a new type of self-resetting energy-absorbing support device, including a support tube, wherein the two ends of the support tube are respectively provided with a first steel tube and a second steel tube from the outside to the inside, the first steel tube and the second steel tube are sleeved, and a first elastic component, a second elastic component and a magnetorheological fluid chamber are sequentially connected in the direction from the second steel tube to the first steel tube in the support tube, the second elastic component is arranged in the first elastic component, and a partition is fixedly connected to the end of the first steel tube close to the second steel tube, one end of the first elastic component is fixed to the second steel tube, and the other end is movably connected to the first steel tube, one end of the second elastic component is fixed to the second steel tube, and the other end is movably connected to the first steel tube, after the first steel tube passes through the magnetorheological fluid chamber, one end is connected to the second steel tube, and the other end extends out of the support tube.

[0007] Furthermore, the first elastic component includes a bottom plate, a top plate and a first memory alloy rod. The bottom plate is fixed on the second steel pipe, the top plate is sleeved on the first steel pipe, and the bottom plate and the top plate are connected by the first memory alloy rod.

[0008] Preferably, the diameter of the first steel pipe is slightly larger than the diameter of the second steel pipe, so that the second steel pipe is sleeved inside the first steel pipe and can reciprocate in the axial direction inside the first steel pipe.

[0009] Furthermore, a piezoelectric material plate and a second spring are provided between the top plate and the partition plate, and the piezoelectric material plate and the second spring are both sleeved on the first steel tube.

[0010] Furthermore, the second elastic component includes a first bearing plane, a second bearing plane, a second memory alloy rod, a first alloy rod and a second alloy rod. The first bearing plane and the second bearing plane are located at both ends of the second elastic component, the first bearing plane is fixedly connected to the second steel pipe, the second bearing plane is sleeved on the second steel pipe, the two ends of the first alloy rod are respectively fixed to the upper ends of the first bearing plane and the second bearing plane, the two ends of the second alloy rod are respectively fixed to the lower ends of the first bearing plane and the second bearing plane, and the upper and lower ends of the second memory alloy rod are respectively fixed to the middle parts of the first alloy rod and the second alloy rod.

[0011] Furthermore, the first alloy rod and the second alloy rod are two identical alloy rods, which are fixedly connected end to end to the upper end and the lower end of the first bearing plane and the second bearing plane respectively.

[0012] Furthermore, a piezoelectric material plate and a first spring are provided between the second bearing plane and the partition, and both the piezoelectric material plate and the first spring are sleeved on the second steel tube.

[0013] Furthermore, the support sleeve includes an inner sleeve and an outer sleeve, and a friction layer is provided between the outer wall of the inner sleeve and the inner wall of the outer sleeve.

[0014] Furthermore, a thread is provided at the connection between the inner sleeve and the first steel pipe.

[0015] Furthermore, a capacitor is fixed on the inner wall of the first steel pipe.

[0016] Furthermore, magnetorheological fluid is provided in the magnetorheological fluid chamber, a plurality of damping rods are fixed to the outer wall of the first steel tube located inside the magnetorheological fluid chamber, a plurality of partitions are fixed between the magnetorheological fluid chamber and the inner sleeve, an electromagnetic coil is provided between adjacent partitions, and the electromagnetic coil is wound on the outside of the magnetorheological fluid chamber.

[0017] Preferably, a plurality of damping rods are evenly and correspondingly fixed on the upper and lower sides of the outer wall of the first steel tube.

[0018] The present invention has the following beneficial effects:

[0019] (1) The energy dissipation support device of the present invention adopts a combination design of piezoelectric material and capacitor, and stores the energy collected by piezoelectricity in the capacitor, so that the energy dissipation support device of the present invention does not require external energy supply and realizes self-energy supply;

[0020] (2) The self-resetting energy-absorbing support device of the present invention, when the self-resetting energy-absorbing support is not subjected to force, the springs provided on the first steel tube and the second steel tube ensure that the structure is tightly connected and does not move relative to each other; when the self-resetting energy-absorbing support device is subjected to a reciprocating cyclic load, it can ensure that there is always a group of shape memory alloys under tension; after the reciprocating cyclic load is eliminated, the self-resetting energy-absorbing support device can return to its initial state under the action of the shape memory alloy component;

[0021] (3) The self-resetting energy-absorbing support device of the present invention uses the relative movement of the outer sleeve and the inner sleeve to generate friction. Under the action of an earthquake, the energy-absorbing component always works along with the movement of the first steel pipe, and can continuously absorb and dissipate earthquake energy.

[0022] (4) The self-resetting energy-absorbing support device of the present invention introduces a rotational inertia damper, that is, the first steel tube moves axially, and the thread on it drives the inner sleeve to rotate. Every time the first steel tube advances one pitch, the inner sleeve rotates one circle. Energy is consumed by the friction of the friction layer between the inner and outer tubes, which actually reflects an amplification effect, making the shock absorption effect more obvious;

[0023] (5) The self-resetting energy-absorbing support device of the present invention has a sleeve added on the outermost side, so that the process occurring inside is not affected by the outside world, which is more conducive to improving the integrity of the support structure. At the same time, the multi-sleeve structure can consume energy step by step, reducing excessive pressure and wear on a single component. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the new self-resetting energy-absorbing support device of the present invention.

[0025] The components include: thread 1, magnetorheological fluid 2, friction layer 3, first memory alloy rod 4, second memory alloy rod 5, first alloy rod 6, second alloy rod 7, piezoelectric material plate 8, first steel tube 9, second steel tube 10, outer sleeve 11, inner sleeve 12, damping rod 13, capacitor 14, magnetorheological fluid chamber 15, partition 16, second bearing plane 17, top plate 18, first spring 19, second spring 20, bottom plate 21, first bearing plane 22, and electromagnetic coil 23. DETAILED DESCRIPTION

[0026] The novel self-resetting energy-absorbing support device of the present invention will be further described in detail below with reference to the accompanying drawings.

[0027] According to the attached Figure 1 As shown in the figures and embodiments of the present invention, the present invention proposes a novel self-resetting energy-absorbing support device, comprising a thread 1, a magnetorheological fluid 2, a friction layer 3, a first memory alloy rod 4, a second memory alloy rod 5, a first alloy rod 6, a second alloy rod 7, a piezoelectric material plate 8, a first steel tube 9, a second steel tube 10, an outer sleeve 11, an inner sleeve 12, a damping rod 13, a capacitor 14, and a magnetorheological fluid chamber 15. The support tube of the present invention comprises an inner sleeve 12 and an outer sleeve 11, a second steel tube 10 is disposed from outside to inside at the left end of the support tube, and a first steel tube 9 is disposed from outside to inside at the right end of the support tube, with the second steel tube 10 and the first steel tube 9 being sleeved together within the support tube. The diameter of the first steel pipe 9 is slightly larger than that of the second steel pipe 10, so that it can move around the second steel pipe 10, so that the entire device can reciprocate in the axial direction of the second steel pipe 10. At the same time, there is a thread 1 at the connection between the first steel pipe 9 and the inner sleeve 12. When the first steel pipe 9 moves, it can drive the inner sleeve 12 to rotate. A friction layer 3 is provided between the outer wall of the inner sleeve 12 and the inner wall of the outer sleeve 11, and the friction layer 3 thereon rubs against the outer sleeve 11 during rotation.

[0028] According to an embodiment of the present invention, a first elastic component, a second elastic component and a magnetorheological fluid chamber 15 are sequentially connected in the direction from the second steel tube 10 to the first steel tube 9 in the support tube, the second elastic component is arranged in the first elastic component, and a partition 16 is fixedly connected to the end of the first steel tube 9 close to the second steel tube 10, one end of the first elastic component is fixed to the second steel tube 10, and the other end is movably connected to the first steel tube 9, one end of the second elastic component is fixed to the second steel tube 10, and the other end is movably connected to the first steel tube 9, after the first steel tube 9 passes through the magnetorheological fluid chamber 15, one end is connected to the second steel tube 10, and the other end extends out of the support tube.

[0029] According to an embodiment of the present invention, the first elastic component includes a bottom plate 21, a top plate 18, and a first memory alloy rod 4. The bottom plate 21 is fixed to the second steel tube 10, and the top plate 18 is sleeved on the first steel tube 9. The bottom plate 21 and the top plate 18 are connected by the first memory alloy rod 4. A piezoelectric material plate 8 and a second spring 20 are provided between the top plate 18 and the partition 16. The piezoelectric material plate 8 and the second spring 20 are both sleeved on the first steel tube 9.

[0030] According to an embodiment of the present invention, the second elastic component includes a first bearing plane 22, a second bearing plane 17, a second memory alloy rod 5, a first alloy rod 6, and a second alloy rod 7. The first bearing plane 22 and the second bearing plane 17 are located at opposite ends of the second elastic component. The first bearing plane 22 is fixedly connected to the second steel tube 10, and the second bearing plane 17 is sleeved onto the second steel tube 10. The first alloy rod 6 has its ends fixed to the upper ends of the first bearing plane 22 and the second bearing plane 17, respectively. The second alloy rod 7 has its ends fixed to the lower ends of the first bearing plane 22 and the second bearing plane 17, respectively. The upper and lower ends of the second memory alloy rod 5 are fixed to the middle portions of the first alloy rod 6 and the second alloy rod 7, respectively. The first alloy rod 6 and the second alloy rod 7 are each two identical sections of alloy rod, fixed end to end to the upper and lower ends of the first bearing plane 22 and the second bearing plane 17, respectively. A piezoelectric material plate 8 and a first spring 19 are disposed between the second bearing plane 17 and the partition 16. Both the piezoelectric material plate 8 and the first spring 19 are sleeved onto the second steel tube 10.

[0031] According to an embodiment of the present invention, a capacitor 14 is fixed to the inner wall of the first steel tube 9 and connected to the piezoelectric material plate 8 via an electrical wire. When the first steel tube 9 moves, the compression between the piezoelectric material plate 8 generates current that is stored in the capacitor 14. The capacitor 14 is connected to an electromagnetic coil 23. When the electromagnetic coil 23 is energized, it applies a magnetic field to the magnetorheological fluid 2, thereby changing the viscosity of the magnetorheological fluid 2. The capacitor 14 can also stabilize the voltage. Multiple damping rods 13 are fixed to the outer wall of the first steel tube 9 within the magnetorheological fluid chamber 15. Multiple partitions are fixed between the magnetorheological fluid chamber 15 and the inner sleeve 12. An electromagnetic coil 23 is disposed between adjacent partitions. The electromagnetic coil 23 is wound around the outside of the magnetorheological fluid chamber 15. When the first steel tube 9 moves and compresses the piezoelectric material plate 8, current is stored in the capacitor 14 on the inner wall of the first steel tube 9. When the electromagnetic coil 23 is energized, the magnetic field force changes the viscosity of the magnetorheological fluid 2 within the magnetorheological fluid chamber 15.

[0032] According to an embodiment of the present invention, a magnetorheological fluid 2 is provided in the magnetorheological fluid chamber 15, and a plurality of damping rods 13 are fixed to the outer wall of the first steel tube 9 located inside the magnetorheological fluid chamber 15. The damping rods 13 are fixed to the upper and lower sides of the outer wall of the first steel tube 9. Figure 1 As shown, three groups of damping rods 13 are evenly fixed on the upper and lower sides. The magnetorheological fluid chamber 15 is connected to the inner sleeve 12 and remains relatively stationary. When the first steel tube 9 moves, the damping rods 13 move in the magnetorheological fluid 2 in the magnetorheological fluid chamber 15.

[0033] According to an embodiment of the present invention, when the support device is under tension, the left end of the first steel tube 9 contacts the right side of the ceramic piezoelectric material plate 8, driving the first memory alloy rod 4 to stretch. When the support device is under compression, the left end of the first steel tube 9 contacts the left side of the piezoelectric material plate 8, driving the second memory alloy rod 5 to stretch.

[0034] According to an embodiment of the present invention, the working principle of the self-resetting energy dissipation support device of the present invention is:

[0035] refer to Figure 1 As shown, when the energy dissipation support device of the present invention is pulled, the first steel tube 9 moves axially to the right, and the partition 16 at its left end moves to the right, squeezing the piezoelectric material plate 8 on the right side, and at the same time driving the top plate 18 to move to the right, so that the distance between the bottom plate 21 fixed on the second steel tube 10 and the top plate 18 increases, causing the first memory alloy rod 4 to stretch and deform, thereby achieving the effect of energy dissipation.

[0036] When the energy-dissipating support device is under pressure, the first steel tube 9 moves axially to the left, and the partition 16 at its left end moves to the left, squeezing the piezoelectric material plate 8 on the left, and at the same time driving the second load-bearing plane 17 to move to the left. The folding device composed of the second elastic component is activated, so that the distance between the first load-bearing plane 22 fixed on the second steel tube 10 and the second load-bearing plane 17 is shortened, causing the second memory alloy rod 5 to stretch and deform, thereby achieving the effect of energy dissipation.

[0037] When the first steel tube 9 reciprocates axially, the damping rod 13 fixed thereon reciprocates in the magnetorheological fluid 2 of the magnetorheological fluid chamber 15. At the same time, the partition 16 squeezes the piezoelectric material plate 8 to generate electrical energy and stores it in the capacitor 14. The capacitor 14 supplies power to the magnetorheological fluid 2 to increase its damping, thereby achieving an energy dissipation effect.

[0038] When the first steel tube 9 reciprocates axially, the inner sleeve 12 rotates through the thread 1 on the first steel tube 9, and rubs against the friction layer 3 on the inner wall of the fixed outer sleeve 11, which plays the role of friction energy consumption. At the same time, the inner sleeve 12 and the damping rod 13 themselves have a large mass and can play the role of inertia.

[0039] The self-resetting energy-dissipating support device of the present invention utilizes three energy dissipation methods: memory alloy, friction, and magnetorheological fluid. This method can fully dissipate the energy generated by the shaking of structures such as buildings during earthquakes. This multi-faceted approach ensures the device's reliability and effectively disperses energy. Furthermore, through its innovative structural design, the memory alloy rod remains in tension regardless of whether the device is under tension or compression, thus preventing the rod from becoming unstable under compression and further maximizing its energy dissipation and self-resetting properties.

[0040] In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood broadly. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0041] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0042] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, those skilled in the art may combine and integrate different embodiments or examples, as well as features of different embodiments or examples, described in this specification, unless they are mutually inconsistent.

Claims

1. A new type of self-resetting energy-absorbing support device, characterized in that: The invention comprises a support tube, wherein a first steel tube (9) and a second steel tube (10) are respectively provided at both ends of the support tube from the outside to the inside, the first steel tube (9) and the second steel tube (10) are sleeved together, and a first elastic component, a second elastic component and a magnetorheological fluid chamber (15) are sequentially connected and provided in the support tube in a direction from the second steel tube (10) to the first steel tube (9), and the second elastic component is provided in the first elastic component. A partition (16) is fixedly connected to the end of the first steel tube (9) close to the second steel tube (10); one end of the first elastic component is fixed to the second steel tube (10), and the other end is movably connected to the first steel tube (9); one end of the second elastic component is fixed to the second steel tube (10), and the other end is movably connected to the first steel tube (9); after the first steel tube (9) passes through the magnetorheological fluid chamber (15), one end is connected to the second steel tube (10), and the other end extends out of the outside of the support tube; The first elastic component includes a bottom plate (21), a top plate (18) and a first memory alloy rod (4), wherein the bottom plate (21) is fixed on the second steel tube (10), the top plate (18) is sleeved on the first steel tube (9), and the bottom plate (21) and the top plate (18) are connected via the first memory alloy rod (4); a piezoelectric material plate (8) and a second spring (20) are provided between the top plate (18) and the partition (16), and the piezoelectric material plate (8) and the second spring (20) are both sleeved on the first steel tube (9); the second elastic component includes a first bearing plane (22), a second bearing plane (17), a second memory alloy rod (5), a first alloy rod (6) and a second alloy rod (7), The first bearing plane (22) and the second bearing plane (17) are located at two ends of the second elastic component, the first bearing plane (22) is fixedly connected to the second steel tube (10), the second bearing plane (17) is sleeved on the second steel tube (10), the two ends of the first alloy rod (6) are respectively fixed to the upper ends of the first bearing plane (22) and the second bearing plane (17), the two ends of the second alloy rod (7) are respectively fixed to the lower ends of the first bearing plane (22) and the second bearing plane (17), and the upper and lower ends of the second memory alloy rod (5) are respectively fixed to the middle parts of the first alloy rod (6) and the second alloy rod (7); A piezoelectric material plate (8) and a first spring (19) are provided between the second bearing plane (17) and the partition (16), and the piezoelectric material plate (8) and the first spring (19) are both sleeved on the second steel tube (10); the support tube includes an inner sleeve (12) and an outer sleeve (11), and a friction layer (3) is provided between the outer wall of the inner sleeve (12) and the inner wall of the outer sleeve (11); a thread (1) is provided at the connection between the inner sleeve (12) and the first steel tube (9); and a capacitor (14) is fixed on the inner wall of the first steel tube (9).

2. The new self-resetting energy-absorbing support device according to claim 1 is characterized in that: The first alloy rod (6) and the second alloy rod (7) are both two identical alloy rods, which are fixedly connected end to end to the upper end and the lower end of the first bearing plane (22) and the second bearing plane (17).

3. The new self-resetting energy-absorbing support device according to claim 1 is characterized in that: The magnetorheological fluid chamber (15) contains magnetorheological fluid (2), and a plurality of damping rods (13) are fixed to the outer wall of the first steel tube (9) located inside the magnetorheological fluid chamber (15). A plurality of partitions are fixedly arranged between the magnetorheological fluid chamber (15) and the inner sleeve (12), and an electromagnetic coil (23) is arranged between adjacent partitions. The electromagnetic coil (23) is wound around the outside of the magnetorheological fluid chamber (15).

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