CN201050121Y - Multidimensional hyperelastic shape memory alloy damper - Google Patents

Multidimensional hyperelastic shape memory alloy damper Download PDF

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Publication number
CN201050121Y
CN201050121Y CNU2007200116075U CN200720011607U CN201050121Y CN 201050121 Y CN201050121 Y CN 201050121Y CN U2007200116075 U CNU2007200116075 U CN U2007200116075U CN 200720011607 U CN200720011607 U CN 200720011607U CN 201050121 Y CN201050121 Y CN 201050121Y
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CN
China
Prior art keywords
memory alloy
shape memory
steel tube
steel cylinder
alloy wires
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CNU2007200116075U
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Chinese (zh)
Inventor
李宏男
任文杰
宋钢兵
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Dalian University of Technology
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Dalian University of Technology
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Priority to CNU2007200116075U priority Critical patent/CN201050121Y/en
Application granted granted Critical
Publication of CN201050121Y publication Critical patent/CN201050121Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

Disclosed is a multi-dimensional super-elastic shape memory alloy damper, in particular to a damping controlling apparatus used in the technical field of civil construction and mechanical engineering. The utility model is characterized in that the damper is composed of shape memory alloy wires, an internal steel tube and an external steel tube; the internal steel tube and the external steel tube share the same axis; the shape memory alloy wires are distributed horizontally and symmetrically along the circumferences of the steel tubes in radial direction, that is , the shape memory alloy wires thread into the external steel tube through one side hole of the external steel tube, and thread out of the internal steel tube through one side hole of the internal steel tube, and the two ends of the shape memory alloy wires are respectively fixed on the internal and the external steel tubes; the shape memory alloy wires exert prestrain to the middle point of the super-elastic platform by means of an adjustable screw and a nut; and the plane movement of the internal steel tube relative to the external steel tube tows the alternate change that parts of the shape memory alloy wires elongate and parts of the shape memory alloy wires shorten so as to provide stable damping force and larger power consumption capability. The beneficial effects of the utility model are that the utility model has damping and power consumption effects from any direction in the plane, and at the same time has the vibration damping and resetting functions in the vertical and torsional directions, thereby realizing the multi-dimensional passive control of the structure.

Description

Damper of multi-dimensional superelastic shape memory alloy
Technical field
The utility model belongs to civil construction and mechanical engineering technical field, relates to a kind of damping control device, and especially planar any direction performance passive energy dissipation effect has vertical and the vibration damping of torsional direction and the damper of reset function simultaneously concurrently.
Background technology
Good passive control device can effectively suppress the vibratory response of engineering structures, guarantees the safety and the applicability of structure.Passive energy dissipation device commonly used, as viscoelastic damper, viscous fluid damper, frcition damper, low-yield metal damper etc., have some limitation: the maintenance of aging and endurance issues, long term operation stability problem, Qiang Zhenhou and replacement problem etc.Marmem has special shape memory effect and superelastic effect as a kind of new function material that has perception and driving force concurrently.By the damper that marmem is made, have that recoverable deformation is big, damping capacity is strong and durability, anticorrosive, advantage such as fatigue resistance good, maintenance cost is low.
The response under random load effects such as earthquake, wind and mechanical oscillation of engineering structures or member is at random, and one of performance is exactly the randomness of vibratory response direction.The marmem damper of developing only has the passive energy dissipation ability of single direction usually at present, the difficult multidimensional Passive Control that realizes in the engineering own.
Summary of the invention
For implementation structure multidimensional Passive Control, the utility model provides a kind of damper of multi-dimensional superelastic shape memory alloy, this damper not only has the passive energy dissipation ability of any direction in the plane, has the vibration damping and the reset function of vertical and torsional direction simultaneously concurrently.
The technical solution adopted in the utility model is: damper of multi-dimensional superelastic shape memory alloy mainly includes super-elastic shape memory alloy wire, interior steel cylinder, outer steel cylinder.Interior steel cylinder is coaxial with outer steel cylinder.Eight groups of shape-memory alloy wires are along steel cylinder circumference radial level symmetric arrangement, and promptly shape-memory alloy wire is penetrated by the hole of outer steel cylinder one side, passed by the hole of the corresponding side of interior steel cylinder, and its two ends are fixed on outer, interior steel cylinder; Shape-memory alloy wire is conditioned screw rod and the adjusting nut prestretched strain mid point to its super-elasticity platform.Interior steel cylinder is separately fixed at different structure or structure different component place with outer steel cylinder.When interior steel cylinder planar moves with respect to outer steel cylinder, interior steel cylinder is drawing shape-memory alloy wire and is partly extending and the alternately variation of part shortening ground, thereby stable damping force is provided and consumes big energy, to suppress the vibration of any direction in structure or the member plane.In addition, vertical displacement also can take place with respect to outer steel cylinder and reverse in interior steel cylinder, because shape-memory alloy wire is in extended state all the time in this vibration processes, so this damper has the vibration damping and the reset function of vertical and torsional direction again.
Effect of the present utility model and benefit are: damper of multi-dimensional superelastic shape memory alloy, be used for civil construction and frame for movement, and utilize the super-elasticity hysteretic characteristic of marmem, consume vibrational energy, reduce structural vibration response, realize Passive Control.The outstanding advantage of this damper shows planar that any direction has the passive energy dissipation ability, has the vibration damping and the reset function of vertical and torsional direction simultaneously concurrently.This damper damping capacity is strong, recoverable deformation big, have anticorrosive preferably, fatigue resistance, and maintenance cost is low, simple structure, easy for installation.
Description of drawings
Fig. 1 is the structural plan figure of damper of multi-dimensional superelastic shape memory alloy.
Fig. 2 is the I-I sectional drawing of Fig. 1.
Among the figure: 1. shape-memory alloy wire; 2. interior steel cylinder; 3. outer steel cylinder; 4. adjusting screw(rod); 5. adjusting nut; 6. anchor clamps; 7. locking nut.
The specific embodiment
Be described in detail the specific embodiment of the present utility model below in conjunction with technical scheme and accompanying drawing.
Step 1
According to the requirement of vibration isolation, determine wood property, size and the quantity of this each building block of damper.
Step 2
With interior steel cylinder 2 and outer steel cylinder 3 correspondence positions boring, and regulate interior steel cylinder 2, outer steel cylinder 3 is coaxial.Shape-memory alloy wire 1 is along steel cylinder circumference radial level symmetric arrangement, being shape-memory alloy wire 1 is penetrated by the hole of outer steel cylinder 3 one sides, hole by interior steel cylinder 2 corresponding sides passes, the one end is fixed on the amplification end of the adjusting screw(rod) 4 that is installed on outer steel cylinder 3 by anchor clamps 6, in the other end is fixed on the steel cylinder 2.
Step 3
Adjusting screw(rod) 4 and adjusting nut 5 apply prestrain in shape-memory alloy wire 1 to its super-elasticity platform mid point, and with locking nut 7 locking.
In said structure, more groups of shape-memory alloy wires 1 can be arranged along steel cylinder circumference radial level symmetric arrangement.

Claims (1)

1. damper of multi-dimensional superelastic shape memory alloy, be by super-elastic shape memory alloy wire (1), interior steel cylinder (2), outer steel cylinder (3), adjusting screw(rod) (4) and adjusting nut (5) are formed, it is characterized in that: interior steel cylinder (2) is coaxial with outer steel cylinder (3), eight groups of shape-memory alloy wires (1) are along steel cylinder circumference radial level symmetric arrangement, penetrate by outer steel cylinder (3) one side openings, pass by interior steel cylinder (2) one side openings, its two ends are separately fixed at interior steel cylinder (2), on the outer steel cylinder (3), and apply the mid point of prestrain to its super-elasticity platform by adjusting screw(rod) (4) and adjusting nut (5).
CNU2007200116075U 2007-04-06 2007-04-06 Multidimensional hyperelastic shape memory alloy damper Expired - Fee Related CN201050121Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2007200116075U CN201050121Y (en) 2007-04-06 2007-04-06 Multidimensional hyperelastic shape memory alloy damper

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2007200116075U CN201050121Y (en) 2007-04-06 2007-04-06 Multidimensional hyperelastic shape memory alloy damper

Publications (1)

Publication Number Publication Date
CN201050121Y true CN201050121Y (en) 2008-04-23

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Family Applications (1)

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CNU2007200116075U Expired - Fee Related CN201050121Y (en) 2007-04-06 2007-04-06 Multidimensional hyperelastic shape memory alloy damper

Country Status (1)

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CN (1) CN201050121Y (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102121507A (en) * 2011-03-18 2011-07-13 杭州电子科技大学 Energy consumption shock absorber
CN102296702A (en) * 2011-05-18 2011-12-28 东南大学 Shape memory alloy self-resetting multi-dimensional shock insulation support
CN102392497A (en) * 2011-10-19 2012-03-28 沈阳建筑大学 Multi-direction shape memory alloy, soft steel and lead combined drum-like damper
CN102505768A (en) * 2011-10-19 2012-06-20 沈阳建筑大学 Multidirectional six-cone-cylinder shape memory alloy damper
CN103603438A (en) * 2013-11-18 2014-02-26 大连理工大学 Multidimensional shape memory alloy energy consumption damper
CN103758239A (en) * 2013-12-25 2014-04-30 广西科技大学 Passive control damping method
CN104674969A (en) * 2015-01-29 2015-06-03 苏州科技学院 Annular curvature-related shape memory alloy damping device
CN106763461A (en) * 2016-12-21 2017-05-31 浙江大学 One kind intends zero stiffness isolation mounting

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102121507A (en) * 2011-03-18 2011-07-13 杭州电子科技大学 Energy consumption shock absorber
CN102296702A (en) * 2011-05-18 2011-12-28 东南大学 Shape memory alloy self-resetting multi-dimensional shock insulation support
CN102296702B (en) * 2011-05-18 2013-10-30 东南大学 Shape memory alloy self-resetting multi-dimensional shock insulation support
CN102392497A (en) * 2011-10-19 2012-03-28 沈阳建筑大学 Multi-direction shape memory alloy, soft steel and lead combined drum-like damper
CN102505768A (en) * 2011-10-19 2012-06-20 沈阳建筑大学 Multidirectional six-cone-cylinder shape memory alloy damper
CN102505768B (en) * 2011-10-19 2013-10-16 沈阳建筑大学 Multidirectional six-cone-cylinder shape memory alloy damper
CN103603438A (en) * 2013-11-18 2014-02-26 大连理工大学 Multidimensional shape memory alloy energy consumption damper
CN103603438B (en) * 2013-11-18 2015-07-15 大连理工大学 Multidimensional shape memory alloy energy consumption damper
CN103758239A (en) * 2013-12-25 2014-04-30 广西科技大学 Passive control damping method
CN104674969A (en) * 2015-01-29 2015-06-03 苏州科技学院 Annular curvature-related shape memory alloy damping device
CN106763461A (en) * 2016-12-21 2017-05-31 浙江大学 One kind intends zero stiffness isolation mounting
CN106763461B (en) * 2016-12-21 2018-09-28 浙江大学 A kind of quasi- zero stiffness isolation mounting

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GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20080423

Termination date: 20100406