CN101581346A - Anti-torsion energy dissipater with internal collision-friction-deformation three-stage energy dissipation - Google Patents
Anti-torsion energy dissipater with internal collision-friction-deformation three-stage energy dissipation Download PDFInfo
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- CN101581346A CN101581346A CNA2009100113263A CN200910011326A CN101581346A CN 101581346 A CN101581346 A CN 101581346A CN A2009100113263 A CNA2009100113263 A CN A2009100113263A CN 200910011326 A CN200910011326 A CN 200910011326A CN 101581346 A CN101581346 A CN 101581346A
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Abstract
The invention discloses an anti-torsion energy dissipater with internal collision-friction-deformation three-stage energy dissipation, which belongs to the technical field of civil engineering and mechanical engineering. The energy dissipater mainly comprises an outer steel cylinder, an inner steel cylinder, shape memory alloy partition plates, partition steel plates and steel flanges. The energy dissipater is characterized in that the inverse trapezoidal partition steel plates and the trapezoidal shape memory alloy partition plates which are radially and evenly arranged along outer and inner circumferences of the inner steel cylinder and the outer steel cylinder are mutually and staggeredly arranged; the upper flange and the lower flange are provided with steel sliding chutes which can be used for the outer steel cylinder and the inner steel cylinder to insert and slide; the energy dissipater is fixed at the position at which the torsion control needs to be performed through threaded holes on the flanges; and when the upper flange and the lower flange perform relative torsion movement, the partition steel plates and the shape memory alloy partition plates can perform energy dissipation in three modes of internal collision, mutual friction and the deformation of the shape memory alloy partition plates to jointly suppress the torsional vibration of a structure or a member in a plane. The energy dissipater has the advantages of strong anti-torsion energy dissipation ability, low maintenance cost, repeated use, self reset, simple structure and the like.
Description
Technical field
The invention belongs to civil engineering and mechanical engineering technical field, relate to a kind of internal collision-friction-deformation three-stage power consumption twisting energy absorber.
Background technique
Violent each time earthquake all can cause huge life and property loss to the mankind.Traditional earthquake resistant design is to resist geological process by the rigidity that strengthens building itself, promptly rely on structure itself to store and earthquake energy, to satisfy the structural seismic standard of setting up defences, this antidetonation mode lacks capacity of self-regulation, under uncertain geological process, usually can not satisfy the requirement of Security, the energy-dissipating and shock-absorbing technology provides a rational and effective approach for structural seismic.The damping technology of passive energy dissipating damper is relatively ripe, yet as a kind of passive control device, durability is a ubiquitous problem in the present sinker.Common viscoelastic damper is easily aging, the maintenance of viscous damper, the reliability of frcition damper when long-term use the, the plasticity residual deformation of mild steel damper etc.
A large amount of seismic demage analysis show, the destruction of many engineering structures (no matter be symplex structure, or non-symmetry structure) is produced by torsional vibration, and often earthquake is comparatively serious, particularly the tall building of complex shape will be in case destruction will be caused enormous economic loss and casualties.Can draw from domestic and international actual earthquake experience, cause during earthquake that structure produces the reason of torsional vibration: the one, because the difference of moving between the particle of ground can make each part on ground not only produce translation component, and the component that rotates.This rotative component forces structure to produce torsional vibration; The 2nd, the center of mass and the center of rigidity of structure do not overlap, and the inertial force that acts on center of mass during earthquake will produce torsional moment to center of rigidity, force structure to produce the space oscillations that the coupling connection is reversed in translation.At mechanical engineering field, disadvantageous torsional vibration is very common especially.The sinker of developing only has axial passive energy dissipation ability usually at present, itself is difficult for the Torsional Vibration Control in the realization engineering.
Marmem is a kind of new function material, has shape memory effect, superelasticity and fatigue-resistance characteristics.Utilize the passive sinker of the super elastic characteristics making of marmem can overcome the problems referred to above.Advantages such as this class sinker is compared with other dampers, has durability and corrosion resistance and good, and life cycle is long, and distortion is big and can recover.But existing marmem sinker mainly utilizes the damping characteristic of austenite shape memory alloy, and energy dissipation capacity is limited.
Therefore, a kind of sinker that antitorque rotational oscillation kinetic force, high damping characteristic is arranged and have runback potential energy power of exploitation is resisted earthquake disaster and mechanical engineering to civil engineering structure and is reduced disadvantageous torsional vibration and have important practical significance.
Summary of the invention
The invention provides a kind of internal collision-friction-deformation three-stage power consumption twisting energy absorber, its objective is that solving existing passive damping device has residual deformation, poor durability, only has problems such as axial vibration damping ability and energy dissipation capacity be limited.
Technological scheme of the present invention is as follows:
Internal collision-friction-deformation three-stage power consumption twisting energy absorber mainly is made up of outer steel cylinder, interior steel cylinder, marmem space bar, interval steel plate and steel flange.Main technical schemes is: arrange 18 groups of trapezoidal interval steel plates symmetrically along the outer periphery of the interior steel cylinder that is connected with upper flange, along the interior week of the outer steel cylinder that is connected with lower flange radially arranging the 18 groups of memory alloy of falling trapezoidal shape space bars symmetrically; Interval steel plate and the mutual layout straggly of marmem space bar; Be equipped with the steel chute on the upper and lower flange, can insert for outer, interior steel cylinder and slide; Sinker is fixed in the position that to reverse control by the bolt hole on the flange.
When relative twist motion took place upper and lower flange, the internal collision-friction-deformation three-stage power consumption will take place in steel plate and marmem space bar at interval, suppresses the torsional vibration planar of structure or member jointly.The energy dissipation capacity of this sinker is directly proportional with amplitude, when amplitude hour, each at interval in steel plate space separately with marmem space bar generation imperfect elastic collision, reach the purpose that exchanges momentum and dissipation kinetic energy; When amplitude is big, steel plate will enter the clearance space on next door at interval, this process can with marmem plate generation friction energy-dissipating; And, will produce stronger restoring force, thereby reach the purpose that reduces structural vibration because the distortion of marmem plate in this process is bigger.
Effect of the present invention and benefit are embodied in and have overcome other dampers shortcomings such as residual deformation, poor durability and energy dissipation capacity be limited are arranged, outstanding advantage is that this three aspect of mutual internal collision-friction-deformation that makes full use of steel plate and marmem plate consumes energy jointly, has significantly improved the energy dissipation capacity of sinker; This damper recoverable deformation is big, have anticorrosive preferably, fatigue resistance, and maintenance cost is low, simple structure, easy for installation.Internal collision-friction-deformation three-stage power consumption twisting energy absorber makes torsional resistance design more convenient, practical, will be widely used in civil engineering and mechanical engineering technical field.
Description of drawings
Fig. 1 is the side elevational view of internal collision-friction-deformation three-stage power consumption twisting energy absorber.
Fig. 2 is an internal collision-friction-deformation three-stage power consumption twisting energy absorber plan view.
Fig. 3 is the A-A sectional drawing of internal collision-friction-deformation three-stage power consumption twisting energy absorber among Fig. 1.
Fig. 4 is the B-B sectional drawing of internal collision-friction-deformation three-stage power consumption twisting energy absorber among Fig. 2.
Among the figure: 1. lower flange; 2. lower flange bolt hole; 3. marmem space bar; 4. outer steel cylinder; 5. steel plate at interval; 6. lower flange chute; 7. interior steel cylinder; 8. upper flange; 9. upper flange bolt hole; 10. upper flange chute.
Embodiment
Be described in detail implementation step of the present invention below in conjunction with technological scheme and accompanying drawing.
Step 2. is arranged 18 groups of steel plates 5 at interval symmetrically in the outer periphery of interior steel cylinder 7, and the interior week of steel cylinder 4 is radially arranged 18 groups of marmem space bars 3 symmetrically outside.
Step 3. is made a steel chute 10 on upper flange 8, the chute radius is identical with outer steel cylinder 4 radiuses; Make a steel chute 6 on lower flange 1, the chute radius is identical with interior steel cylinder 7 radiuses.
The bolt hole 9 and 2 that step 5. is reserved by upper and lower flange adopts high-strength bolt sinker to be installed in the position that need carry out Torsional Vibration Control.
Claims (1)
1. an internal collision-friction-deformation three-stage power consumption twisting energy absorber is made up of lower flange (1), lower flange bolt hole (2), marmem space bar (3), outer steel cylinder (4), interval steel plate (5), lower flange chute (6), interior steel cylinder (7), upper flange (8), upper flange bolt hole (9) and upper flange chute (10); It is characterized in that: the outer periphery along the interior steel cylinder (7) that is connected with upper flange (8) is arranged 18 groups of trapezoidal interval steel plates (5) symmetrically, along the interior week of the outer steel cylinder (4) that is connected with lower flange (1) radially arranging the 18 groups of memory alloy of falling trapezoidal shape space bars (3) symmetrically; Interval steel plate and the mutual layout straggly of marmem space bar; Upper flange is provided with steel chute (10), and lower flange is provided with steel chute (6), can insert for outer, interior steel cylinder and slide; Bolt hole (2) and upper flange bolt hole (9) by lower flange are fixed in sinker at the position that need reverse control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100113263A CN101581346A (en) | 2009-04-25 | 2009-04-25 | Anti-torsion energy dissipater with internal collision-friction-deformation three-stage energy dissipation |
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2009100113263A CN101581346A (en) | 2009-04-25 | 2009-04-25 | Anti-torsion energy dissipater with internal collision-friction-deformation three-stage energy dissipation |
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| CN101581346A true CN101581346A (en) | 2009-11-18 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103603917A (en) * | 2013-11-18 | 2014-02-26 | 大连理工大学 | Magneto-rheological damper for suspended mass pendulum |
| CN103669638A (en) * | 2013-12-31 | 2014-03-26 | 长沙理工大学 | Rotating energy consumption earthquake damping device |
| CN104389353A (en) * | 2014-11-07 | 2015-03-04 | 广州大学 | Integral ball vertical vibration isolation tube |
| CN104847032A (en) * | 2013-04-25 | 2015-08-19 | 河南行知专利服务有限公司 | Composite vibration isolator for friction of shape memory alloy |
| CN107859198A (en) * | 2017-12-18 | 2018-03-30 | 安徽工程大学 | Torsional mode composition metal energy dissipative device |
-
2009
- 2009-04-25 CN CNA2009100113263A patent/CN101581346A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104847032A (en) * | 2013-04-25 | 2015-08-19 | 河南行知专利服务有限公司 | Composite vibration isolator for friction of shape memory alloy |
| CN104847032B (en) * | 2013-04-25 | 2017-06-13 | 苏建忠 | Shape memory alloy friction composite vibration isolator |
| CN103603917A (en) * | 2013-11-18 | 2014-02-26 | 大连理工大学 | Magneto-rheological damper for suspended mass pendulum |
| CN103603917B (en) * | 2013-11-18 | 2015-12-09 | 大连理工大学 | A kind of magnetorheological suspended mass pendulum damper |
| CN103669638A (en) * | 2013-12-31 | 2014-03-26 | 长沙理工大学 | Rotating energy consumption earthquake damping device |
| CN103669638B (en) * | 2013-12-31 | 2015-10-28 | 长沙理工大学 | A kind of rotation energy-consumption shock-absorption device |
| CN104389353A (en) * | 2014-11-07 | 2015-03-04 | 广州大学 | Integral ball vertical vibration isolation tube |
| CN104389353B (en) * | 2014-11-07 | 2017-02-22 | 广州大学 | Integral ball vertical vibration isolation tube |
| CN107859198A (en) * | 2017-12-18 | 2018-03-30 | 安徽工程大学 | Torsional mode composition metal energy dissipative device |
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Open date: 20091118 |