CN114000605B - Composite friction energy consumption variable tension TiNi alloy wire self-resetting damper - Google Patents
Composite friction energy consumption variable tension TiNi alloy wire self-resetting damper Download PDFInfo
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- CN114000605B CN114000605B CN202111527696.XA CN202111527696A CN114000605B CN 114000605 B CN114000605 B CN 114000605B CN 202111527696 A CN202111527696 A CN 202111527696A CN 114000605 B CN114000605 B CN 114000605B
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- sliding rod
- block
- tini alloy
- friction
- piezoelectric ceramic
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/98—Protection against other undesired influences or dangers against vibrations or shocks; against mechanical destruction, e.g. by air-raids
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/02—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
- E04H9/021—Bearing, supporting or connecting constructions specially adapted for such buildings
- E04H9/0237—Structural braces with damping devices
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/14—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate against other dangerous influences, e.g. tornadoes, floods
Abstract
A variable-tension TiNi alloy wire self-resetting damper with composite friction energy consumption is characterized in that a left connecting piece (1) is welded with a left end plate (2) and then is connected with a constraint cylinder (3) into a whole, and a bolt hole (32) through which a bolt (8) passes is temporarily connected with a bolt extrusion hole (71) in a friction block (7); two sides of an upper sliding rod (4) and a lower sliding rod (41) are connected with a friction steel plate (5) through a stop block (13), a first piezoelectric ceramic driver (9), a left sliding block (6) and a second piezoelectric ceramic driver (91), and a right sliding block (61) are symmetrically arranged on two sides of the fixed stop block (13), the left sliding block and the right sliding block can slide in a sliding groove (42) of the upper sliding rod and the lower sliding rod and are in clearance fit with a left end plate and a right end plate, a baffle (15) is connected to two sides of the sliding blocks, a prestressed steel wire (10) penetrates through the baffle (15) and is connected with the left sliding block (6) and the right sliding block (61) through an anchor bolt (11), and a limiting block (12) penetrates through a limiting hole (33) and then is connected with the upper sliding rod (4).
Description
Technical Field
The invention relates to the field of energy consumption and vibration reduction control in civil engineering, in particular to a piezoelectric damper control technology with energy consumption and self-resetting functions.
Background
Along with the development of urban construction, high-rise and super high-rise buildings are gradually popularized, and the requirements of people on the comfort and safety of the high-rise and super high-rise buildings are gradually improved. The common shock insulation measures have limited wind resistance and shock insulation effects on high-rise and super high-rise buildings, so that a proper shock absorption method is necessary to be adopted in the high-rise buildings to reduce the influence of external loads on the building structures. The semi-active control damper can adjust the damping force in real time according to the response of a building structure, has good energy consumption and self-resetting capability, lightens the damage of the building structure under vibration, and gradually becomes a focus of attention in research and development of novel self-resetting semi-active control dampers with self-adjusting capability.
Most of the existing self-resetting dampers using shape memory alloy to participate in energy consumption can not adjust the energy consumption capability and the self-resetting capability of the damper in real time according to the response of a structure, so that a novel self-resetting damper needs to be invented, the energy consumption capability and the self-resetting capability of the damper can be adjusted in real time according to the response of the structure under the action of a piezoelectric material, the energy consumption capability and the self-resetting capability of the damper can meet the use requirement of a building structure, and the requirement of people on building comfort and safety under the action of external loads such as wind, earthquake and the like.
Disclosure of Invention
The invention aims to provide a variable-tension TiNi alloy wire self-resetting damper with composite friction energy consumption.
The invention relates to a variable-tension TiNi alloy wire self-resetting damper with composite friction energy consumption, which comprises a restraining barrel 3, wherein the left end of the restraining barrel is provided with a left end plate 2 and a left connecting piece 1, the periphery of the restraining barrel is provided with an anchoring hole 31, a limiting hole 33 and a bolt hole 32 which penetrate through the restraining barrel 3, and all the openings of the same type are arranged in a symmetrical mode with the same size; the left connecting piece 1 is welded with the left end plate 2 and then connected with the restraint cylinder 3 to form an outer damper cylinder, and a bolt hole 32 through which a bolt 8 passes is temporarily connected with the friction block 7; the upper sliding rod 4 and the lower sliding rod 41 are symmetrically connected with a friction steel plate 5 in clearance fit with the restraint cylinder (3) through the two sides after being connected through the stop block 13, the first piezoelectric ceramic driver 9, the left sliding block 6, the second piezoelectric ceramic driver 91 and the right sliding block 61 are symmetrically arranged on the two sides of the fixed stop block 13, the left sliding block 6 and the right sliding block 61 can slide in the sliding grooves 42 of the upper sliding rod and the lower sliding rod and are in clearance fit with the inner wall of the restraint cylinder 3, the baffle plates 15 are symmetrically welded on the two sides of the left sliding block and the right sliding block, the prestressed wires 10 penetrate through the baffle plates and connect the left sliding block and the right sliding block into a whole through the anchoring bolts 11, the right end plate 2 'is connected with the upper sliding rod and the lower sliding rod and then is welded with the right connecting piece 1', and the limiting blocks 12 penetrate through the limiting holes 33 and are connected with the upper sliding rod 4; the bolt 8 penetrates through the bolt hole 32 to extrude the friction block 7 to be welded on the friction steel plate 5 on one side of the upper sliding rod 4; the ultra-high molecular weight polyethylene fiber 17 penetrating through the connecting hole of the fixed stop block 13 and the TiNi alloy wire 14 penetrating through the connecting holes of the left and right sliders are fixed on both sides of the restraining barrel 3 through the anchoring devices 16 after penetrating through the anchoring holes 31 on the outer side of the restraining barrel 3; when the sliding rod part of the damper is stressed to move, relative friction motion is generated between the friction block 7 and the friction steel plate 5, when the damper is tensioned, the right connecting piece 1 'drives the upper and lower sliding rods to move rightwards through the right end plate 2', and under the pushing action of the baffle plates 13 and the second piezoelectric ceramic drivers 91, the right-side TiNi alloy wires and the ultrahigh molecular weight polyethylene fibers are tensioned; when the damper is pressed, under the pushing of the stop block 13 and the first piezoelectric ceramic driver 9, the left TiNi alloy wire and the ultra-high molecular weight polyethylene fiber are pulled, and meanwhile, the tension of the TiNi alloy wire 14 is dynamically adjusted after the first piezoelectric ceramic driver and the second piezoelectric ceramic driver are electrified.
The invention has the beneficial effects that: the passive control of the traditional damper is changed into self-adaptive control, the axial deformation is adjusted in real time according to the response piezoelectric ceramic driver of the building structure, and the tension of the TiNi alloy wire is adjusted to achieve the effect of intelligent control.
According to the invention, a plurality of groups of TiNi alloy wires and ultra-high molecular weight polyethylene fibers which apply pretension stress are arranged on two sides of the restraint cylinder to form a flexible bow string system, and when vibration occurs, the sliding rod can drive the TiNi alloy wires and the ultra-high molecular weight polyethylene fibers which penetrate through the connecting hole to reciprocate to consume energy and automatically reset; the sliding rod moves to drive the friction steel plates welded on the two sides of the sliding rod to move, the friction blocks are extruded on the friction steel plates by the bolts, and the friction steel plates and the friction blocks move relatively to consume energy.
The invention can adjust the friction force between the friction block and the friction steel plate by adjusting the extrusion force of the bolt on the friction block, and can adjust the output force of the damper while changing the self-resetting capability of the damper by adjusting the prestress and the diameter of the TiNi alloy wire and the ultra-high molecular weight polyethylene fiber.
According to the invention, the binding barrel, the anchoring holes and the connecting holes of the sliding block are subjected to fillet treatment and are sprayed with lubricating oil to reduce friction between alloy wires and polyethylene fibers and hole walls and prevent the pulled part from being damaged; the limiting hole controls the displacement of the TiNi alloy wire and the ultra-high molecular weight polyethylene fiber to prevent the TiNi alloy wire and the ultra-high molecular weight polyethylene fiber from being damaged by pulling.
The sliding rod part is attached to the inner side of the restraining cylinder, so that the sliding rod is prevented from deviating when the bolt applies pressure to the friction block. The TiNi alloy wire selected by the damper has unique shape memory effect, superelasticity, high energy consumption characteristic and high damping characteristic, and can overcome the problems of aging, maintenance, residual deformation and the like of other types of damper materials; the selected ultra-high molecular weight polyethylene fiber has higher elastic modulus, so that the output force of the damper can be effectively improved; the selected piezoelectric ceramic material has high response speed, low energy consumption and good durability and is suitable for a semi-active control device in a civil engineering structure.
Drawings
Fig. 1 isbase:Sub>A plan view ofbase:Sub>A damper, fig. 2 isbase:Sub>A sectional viewbase:Sub>A-base:Sub>A of the damper of fig. 1, fig. 3 isbase:Sub>A sectional view B-B of the damper of fig. 1, fig. 4 isbase:Sub>A schematic view of an outer structure of the damper, fig. 5 isbase:Sub>A view showingbase:Sub>A positional relationship ofbase:Sub>A slide rod,base:Sub>A slider, andbase:Sub>A piezo ceramic actuator of the damper, fig. 6 isbase:Sub>A partial perspective view of an inner slide rod of the damper, fig. 7 isbase:Sub>A schematic view ofbase:Sub>A friction block of the damper, and fig. 8 isbase:Sub>A wiring diagram of the piezo ceramic actuator. Reference numerals and corresponding names: left connecting piece 1, right connecting piece 1 ', left end plate 2, right end plate 2', constraining cylinder 3, anchoring hole 31, bolt hole 32, upper sliding rod 4, lower sliding rod 41, sliding groove 42, friction steel plate 5, left slider 6, right slider 61, connecting hole 62, friction block 7, bolt 8, bolt extrusion hole 71, first piezoceramic driver 9, second piezoceramic driver 91, prestressed wire 10, anchoring bolt 11, limiting block 12, stop block 13, tini alloy wire 14, stop plate 15, anchoring device 16, ultra-high molecular weight polyethylene fiber 17.
Detailed Description
As shown in fig. 1 to 7, the invention is a variable tension self-resetting damper combining friction energy consumption, wherein the periphery of a restraint cylinder 3 is provided with an anchoring hole 31, a limiting hole 33 and a bolt hole 32 which penetrate through the restraint cylinder 3, all the holes of the same type are arranged in a symmetrical mode with the same size, a left connecting piece 1 is welded with a left end plate 2 and then connected with the restraint cylinder 3 into a whole, and a bolt 8 penetrates through the bolt hole 32 and extrudes a friction block 7 on a friction steel plate 5 through a bolt extrusion hole 71; the upper sliding rod 4 and the lower sliding rod 41 are connected through the stop block 13, and then friction steel plates 5 are symmetrically welded on two sides of the upper sliding rod and the lower sliding rod, the first piezoelectric ceramic driver 9 and the second piezoelectric ceramic driver 91 are respectively bonded with the stop block 13, the left sliding block 6 and the right sliding block 61 are symmetrically arranged on two sides of the stop block 13, and the left sliding block and the right sliding block are in clearance fit with the sliding grooves 42 of the upper sliding rod and the lower sliding rod; the baffles 15 are symmetrically welded on two sides of the sliding block, and the prestressed steel wires 10 penetrate through the baffles and connect the left sliding block and the right sliding block into a whole through the anchoring bolts 11; the right end plate 2 'is connected with the upper sliding rod and the lower sliding rod and then welded with the right connecting piece 1', and the limiting block 12 penetrates through the limiting hole 33 and then is welded with the sliding rod 4; the ultra-high molecular weight polyethylene fiber 17 passing through the connecting hole of the fixed stop 13 and the TiNi alloy wire 14 passing through the connecting holes of the left and right sliders pass through the anchoring hole 31 on the outer side of the restraining barrel 3 and then are fixed on both sides of the restraining barrel 3 through the anchoring device 16.
As shown in fig. 2, 3, 5 and 6, after the TiNi alloy wire 14 and the ultra-high molecular weight polyethylene fiber 17 pass through the corresponding connecting hole 62, the two ends are anchored at the anchoring holes 31 at the two sides of the restraining barrel 3, and the connecting hole and the anchoring holes are subjected to fillet treatment, so that the friction between the TiNi alloy wire and the ultra-high molecular weight polyethylene fiber and the hole wall is reduced, and the service life is prolonged; the right connecting piece 1 'is connected with the upper and lower sliding rods through the right end plate 2' to drive the TiNi alloy wires 14 and the ultra-high molecular weight polyethylene fibers 17 penetrating through the connecting holes 62 to reciprocate.
As shown in fig. 8, the first piezoelectric ceramic driver 9 and the second piezoelectric ceramic driver 91 adjust the tension applied to all the TiNi alloy wires in real time by pushing the left and right sliders to move according to the real-time response of the structure.
As shown in fig. 4 and 7, a bolt pressing hole 71 having the same diameter as the bolt 8 is formed in the upper side of the friction block 7, and the bolt 8 passes through the bolt hole 32 to press the friction block 7 against the friction plate 5, so that friction force required for energy consumption is generated between the two and the movement of the friction block 7 is limited by the bolt pressing hole 71.
As shown in fig. 3 and 5, the lower sliding rod 41 of the upper sliding rod 4 is provided with a sliding groove for the sliding block to move in the sliding groove 42, so as to prevent the sliding block from shifting in the sliding process; the inner cylinder part consisting of the upper and lower sliding rods and the friction steel plate is attached to the inner wall of the restraint cylinder 3 to limit the non-directional movement of the inner cylinder part.
The invention is further developed in the following with reference to the accompanying drawings.
Example 1: the invention relates to a variable-tension TiNi alloy wire self-resetting damper with composite friction energy consumption, which comprises 2 connecting pieces 1, 2 end plates 2, a constraint cylinder 3, 2 sliding rods 4, 4 friction plates 5, 2 sliding blocks 6, 4 friction blocks 7, 4 bolts 8, 2 piezoelectric ceramic drivers 9, 4 prestressed steel wires 10, 8 anchoring bolts 11, 2 limiting blocks, 6 groups of TiNi alloy wires 14, 16 anchoring devices 16 and 2 groups of ultrahigh molecular weight polyethylene fibers 17; the main body structure of the damper is a vertically and longitudinally symmetrical structure.
Example 2: in the embodiment, multiple groups of TiNi alloy wires 14 and ultra-high molecular weight polyethylene fibers 17 penetrate through the connecting holes and the anchoring holes and are fastened on two sides of the restraining barrel 3 through the anchoring devices 16, a flexible bow-string system can be formed due to certain dislocation of the connecting holes and the anchoring holes of the restraining barrel, and when vibration occurs, the upper sliding rod and the lower sliding rod move leftwards or rightwards to cause the TiNi alloy wires to consume energy in a tensioned mode. Meanwhile, the upper sliding rod and the lower sliding rod move left and right and simultaneously drive the friction steel plate to move and generate friction energy consumption with the friction block, and the friction force between the friction steel plate and the friction block can be adjusted through the bolt.
Example 3: the upper sliding rod and the lower sliding rod can slide in the constraint cylinder 3 under the drive of the right connecting piece 1', but displacement is limited by the limiting block 12, and the limiting displacement is equal to the maximum displacement of a "bowstring" of the TiNi alloy wire in the constraint cylinder 3; the anchor hole 31 of the restraining cylinder 3, the connecting hole 62 of the sliding block and the stop block are subjected to fillet treatment to reduce the friction between the TiNi alloy wire 14 and the ultra-high molecular weight polyethylene fiber 17 and the hole wall, and prolong the service life of the damper; the TiNi alloy wire 14 is a superelastic alloy wire in an austenitic state at normal temperature.
Example 4: the lower sliding rods 41 of the upper sliding rods 4 are all provided with sliding grooves 42 for the sliding of the sliding blocks, so that the sliding blocks are prevented from deviating in the sliding process; the left and right sliding blocks are in clearance fit with the left and right end plates to limit the moving distance of the left and right sliding blocks.
The working process of the invention is as follows: the invention can be arranged in the frame structure by a diagonal brace or a herringbone brace, and the friction force between the friction block and the friction plate is adjusted by the bolt on the assumption that the restraining barrel part is fixed. When the right end connecting piece is pulled, the right end plate connected with the upper sliding rod and the lower sliding rod drives the sliding rods to move rightwards, the friction blocks and the friction steel plates can rub against each other to dissipate energy generated by structural vibration, the stop block drives the right piezoelectric ceramic driver and the sliding block to move rightwards, the ultra-high molecular weight polyethylene fibers and the right TiNi alloy wires are pulled to provide restoring force and dissipate energy, and meanwhile, the piezoelectric ceramic driver can adjust the axial displacement of the piezoelectric ceramic driver in real time according to the response of a building structure under the control of a computer, so that the tightness degree of the TiNi alloy wires is adjusted; in the process that the right-end sliding block moves towards the right side, the TiNi alloy wires and the ultrahigh molecular weight polyethylene fibers, which are in a super elastic state and applied with prestress on the left side, can gradually change from 'bent' to 'straight', when the right-end sliding block continues to move rightwards, the right-end sliding block drives the left-side sliding block to move rightwards through the prestress wire, the TiNi alloy wires and the ultrahigh molecular weight polyethylene fibers on the left side and the right side are simultaneously pulled to dissipate energy and provide restoring force, when the TiNi alloy wires reach the maximum displacement, the limiting block limits the sliding rod to continue to move, and the damper stops working. When the force acting on the connecting piece is smaller than the sum of the restoring forces of the TiNi alloy wires and the ultrahigh molecular weight polyethylene fibers, the TiNi alloy wires and the ultrahigh molecular weight polyethylene fibers penetrating through the connecting holes can drive the sliding block to return to the initial state by utilizing the self-resetting capability of the TiNi alloy wires and the ultrahigh molecular weight polyethylene fibers, and the working state of the damper is the same as that of tension when the damper is pressed.
Claims (4)
1. The utility model provides a compound friction energy consumption becomes tension TiNi alloy silk from restoring to throne attenuator, has one restraint section of thick bamboo (3) to open all around has anchor hole (31), spacing hole (33), bolt hole (32) that run through restraint section of thick bamboo (3), all equal symmetrical arrangement of size of trompil of the same type, its characterized in that: the left connecting piece (1) is welded with the left end plate (2) and then is connected with the restraint cylinder (3) into a whole, and a bolt hole (32) through which a bolt (8) passes is temporarily connected with a bolt extrusion hole (71) on the friction block (7); the upper sliding rod (4) and the lower sliding rod (41) are connected through a stop block (13) and then connected with friction steel plates (5) at two sides, a first piezoelectric ceramic driver (9), a left sliding block (6) and a second piezoelectric ceramic driver (91) and a right sliding block (61) are symmetrically arranged at two sides of the fixed stop block (13), the left sliding block and the right sliding block can slide in sliding grooves (42) of the upper sliding rod and the lower sliding rod and are in clearance fit with left and right end plates, baffle plates (15) are connected at two sides of the sliding blocks, prestressed wires (10) penetrate through the baffle plates (15) and connect the right sliding block (61) of the left sliding block (6) through anchor bolts (11), a right end plate (2 ') is connected with the upper sliding rod and the lower sliding rod and then welded with a right connecting piece (1'), and a limiting block (12) penetrates through a limiting hole (33) and then is connected with the upper sliding rod (4); the bolt (8) penetrates through the bolt hole (32) to extrude the friction block (7) onto the friction steel plates (5) connected to the two sides of the upper sliding rod and the lower sliding rod; the ultra-high molecular weight polyethylene fiber (17) penetrating through the connecting hole of the fixed stop block (13) and the TiNi alloy wire (14) penetrating through the connecting holes of the left and right sliders are fixed on two sides of the restraining barrel (3) through the anchoring device (16) after penetrating through the anchoring hole (31) on the outer side of the restraining barrel (3); when the damper is pulled, the right connecting piece (1 ') drives the upper and lower sliding rods to move rightwards through the right end plate (2'), and the right side TiNi alloy wires and the ultra-high molecular weight polyethylene fibers are pulled under the pushing of the baffle blocks (13) and the second piezoelectric ceramic drivers (91); when the damper is pressed, under the push of the stop block (13) and the first piezoelectric ceramic driver (9), the left TiNi alloy wire and the ultra-high molecular weight polyethylene fiber are pulled, and generate relative friction motion with the friction block (7) in the process of sliding the friction steel plate (5) connected with the upper sliding rod and the lower sliding rod left and right,
meanwhile, the first piezoelectric ceramic driver (9) and the second piezoelectric ceramic driver (91) dynamically adjust the tension of the TiNi alloy wire (14).
2. The variable tension TiNi alloy wire self-resetting damper with composite friction energy consumption according to claim 1, characterized in that: the first piezoelectric ceramic driver (9) and the second piezoelectric ceramic driver (91) are connected with the stop block (13), and the left sliding block (6) and the right sliding block (61) are extruded on the first piezoelectric ceramic driver (9) and the second piezoelectric ceramic driver (91) through prestress applied by the prestressed steel wires (10) and are connected with the upper sliding rod and the lower sliding rod to integrally keep synchronous motion.
3. The variable tension TiNi alloy wire self-resetting damper with composite friction energy consumption according to claim 1, characterized in that: the TiNi alloy wires (14) penetrate through corresponding connecting holes (62) on the left slider and the right slider to apply prestress, and then are fixed at anchoring holes (31) on two sides of the restraining barrel (3) through an anchoring device (16), the connecting holes (62) subjected to fillet treatment and the anchoring holes (31) of the restraining barrel have certain dislocation, and the TiNi alloy wires (14) penetrate through to form a flexible bow-string system.
4. The composite friction energy-consuming variable-tension TiNi alloy wire self-resetting damper as claimed in claim 1, is characterized in that: the damper is added with flexible ultrahigh molecular weight polyethylene fibers (17) on the basis of a flexible bow-string system of TiNi alloy wires (14); the ultra-high molecular weight polyethylene fiber (17) also forms a flexible bow-string system, and the initial displacement angle of the ultra-high molecular weight polyethylene fiber is far smaller than that of the TiNi alloy wire (14).
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| CN202111527696.XA CN114000605B (en) | 2021-12-15 | 2021-12-15 | Composite friction energy consumption variable tension TiNi alloy wire self-resetting damper |
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| CN202111527696.XA CN114000605B (en) | 2021-12-15 | 2021-12-15 | Composite friction energy consumption variable tension TiNi alloy wire self-resetting damper |
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| CN107939137A (en) * | 2017-12-27 | 2018-04-20 | 华侨大学 | A kind of marmem piezoelectric friction damper device |
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| JP3797086B2 (en) * | 2000-10-06 | 2006-07-12 | 五洋建設株式会社 | Friction damper for seismic equipment |
| JP2003307253A (en) * | 2002-04-12 | 2003-10-31 | Ohbayashi Corp | Frictional damper |
| CN105350679B (en) * | 2015-12-15 | 2017-06-30 | 西安建筑科技大学 | A kind of restoration type SMA piezoelectricity frictions mixing damper |
| CN107939137A (en) * | 2017-12-27 | 2018-04-20 | 华侨大学 | A kind of marmem piezoelectric friction damper device |
| CN108708472A (en) * | 2018-08-27 | 2018-10-26 | 西安建筑科技大学 | A kind of box SMA- piezoelectricity change friction composite damper |
| CN113530933A (en) * | 2021-07-09 | 2021-10-22 | 北京航空航天大学 | Shape memory composite material connecting device |
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