CN101736829A - Piezoelectric telescope-feed tension compression bidirectional stress initiative anti-seismic control device - Google Patents
Piezoelectric telescope-feed tension compression bidirectional stress initiative anti-seismic control device Download PDFInfo
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- CN101736829A CN101736829A CN200910254589A CN200910254589A CN101736829A CN 101736829 A CN101736829 A CN 101736829A CN 200910254589 A CN200910254589 A CN 200910254589A CN 200910254589 A CN200910254589 A CN 200910254589A CN 101736829 A CN101736829 A CN 101736829A
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Abstract
The invention provides a piezoelectric telescope-feed tension compression bidirectional stress initiative anti-seismic control device, comprising an external tube, a fastening force changing nut arranged at the upper part of the external tube and a first connecting rod penetrating the fastening force changing nut; a second connecting rod is arranged at the lower part of the external tube; an internal tube in hollow structure is arranged in the external tube, and piezoelectric pile is placed in the internal tube; the upper end of the internal tube is fixedly connected with the fastening force changing nut by a bolt; a first transmission end plate is arranged between the upper end part of the internal tube and the upper end part of the piezoelectric pile; a second transmission end plate provided with a hinge is arranged between the lower end part of the internal tube and the lower end part of the piezoelectric pile; and the inner side at the lower end of the external tube is provided with a lug which is contacted with the hinge of the second transmission end plate in moving process. The invention solves the technical problem that anti-seismic control device is low in working efficiency and has the advantage of strong adaptability to environment.
Description
Technical field
The present invention relates to civil engineering earthquake resistant control field, be specifically related to a kind of piezoelectric telescope-feed tension compression bidirectional stress initiative anti-seismic control device.
Background technology
Along with the building span increases, highly increase and form of structure are complicated day by day, the safety and the comfort level of structure are also had higher requirement.Eliminate or weaken the attention that influence that unfavorable factor produces has obtained more and more designers by control technology, wherein, passive, the application of half active control technology in civil engineering obtained excellent research and application, and depend critically upon the active control technology of drive unit, then because traditional vibration isolation drive unit low-response, little, the factor affecting such as stroke is little of exerting oneself, its application has been subjected to considerable restraint.Traditional active earthquake resistant control drive unit is merely able to realize unidirectional pressurized earthquake resistant control usually, and can not satisfy the demand of big displacement deformation, and is also relatively poor to the adaptive capacity of environment in addition, and operating efficiency is also relatively lower.
Summary of the invention
Can be relatively poor in order to solve existing initiatively anti-seismic control device to the adaptation of environment, ineffective technical problem the invention provides a kind of piezoelectric telescope-feed tension compression bidirectional stress initiative anti-seismic control device.
Technical scheme of the present invention is as follows:
Piezoelectric telescope-feed tension compression bidirectional stress initiative anti-seismic control device provided by the invention comprises outer layer sleeve, is arranged at the fastening force changing nut of outer layer sleeve upper end, passes the head rod of fastening force changing nut; Be arranged at second connecting rod of outer layer sleeve bottom; Be provided with the inner layer sleeve of hollow structure in the described outer layer sleeve, be placed with piezoelectric pile in the described inner layer sleeve; The upper end and the fastening force changing nut of described inner layer sleeve are connected by bolt; Be provided with first transmission end plate between described inner layer sleeve upper end and the piezoelectric pile upper end; Be provided with second transmission end plate of band hinge between described inner layer sleeve bottom and the piezoelectric pile bottom; Inboard, described outer sleeve lower end is provided with in motion process and cuts with scissors contacted projection with second transmission end plate.
According to an optimal technical scheme of the present invention, be provided with the space between described outer layer sleeve and the inner layer sleeve upper/lower terminal.
According to an optimal technical scheme of the present invention, be provided with bolt between described outer layer sleeve and the inner layer sleeve upper/lower terminal.
According to an optimal technical scheme of the present invention, described projection is oval.
According to an optimal technical scheme of the present invention, described hinge is the semicircle sphere.
According to an optimal technical scheme of the present invention, described piezoelectric pile is cuboid or cylinder.
Advantage of the present invention is as follows:
1. utilization piezoelectric pile this novel intelligent material is applied to the ACTIVE CONTROL system of civil engineering, has realized the new way of structural seismic, has better flexibility, intelligent, high efficiency and to advantages such as the adaptive capacity of environment are strong in the control active process.
2. simple structure practicality, dependable performance is converted into pressure with pulling force and gives full play to the good performance of piezoelectric pile pressurized performance, relatively meets civil structure antidetonation stress performance characteristics.
Description of drawings:
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the cross section view of A-A direction of the present invention;
Fig. 3 is the cross section view of B-B direction of the present invention;
Fig. 4 is the cross section view of C-C direction of the present invention.
Description of reference numerals:
The specific embodiment:
The present invention will be further described below in conjunction with accompanying drawing:
Referring to Fig. 1-shown in Figure 4, the two-way active anti-seismic control device of piezoelectric telescope-feed provided by the invention comprises outer layer sleeve 1, is arranged at the fastening force changing nut 2 of outer layer sleeve 1 upper end, passes the head rod 3 of fastening force changing nut 2; Be arranged at second connecting rod 4 of outer layer sleeve 1 bottom; Be provided with the inner layer sleeve 6 of hollow structure in the outer layer sleeve 1, place promising cuboid or tubular piezoelectric pile 7 in the inner layer sleeve 6; The upper end of inner layer sleeve with change power nut 2 admittedly and fixedly connected by bolt 5; Be provided with first transmission end plate 8 between inner layer sleeve 6 upper ends and piezoelectric pile 7 upper ends; Be provided with second transmission end plate 9 of band hemispherical hinge 10 between inner layer sleeve 6 bottoms and piezoelectric pile 7 bottoms; Inner sleeve 6 upper surface inwalls are provided with in motion process and first transmission end plate, 8 contacted first projections 601; Inboard, outer layer sleeve 1 lower end is provided with in motion process the hinge 10 contacted oval projections 401 with second transmission end plate 9.Outer layer sleeve and inner layer sleeve are provided with between the two ends up and down and regulate bolt 11.Because piezoelectric has positive inverse piezoelectric effect, therefore not only can make sensor but also can do driver, but the piezoelectric strain coefficient of general piezoelectric is very little, even apply very big voltage, the output displacement is also less.Piezoelectric pile among the application is many group piezoelectric patches structures in parallel on series connection, electricity on the mechanics, and the displacement that it produces each piezoelectric patches output that can superpose has increased the displacement output quantity.
Operating principle of the present invention is as follows:
The present invention is applicable in the structural seismic ACTIVE CONTROL that build-in is connected with common rod member respectively with second connecting rod by head rod in the middle of the common rod member of structure, transmit pulling force or pressure, and fastening force changing nut 2 is passed through bolt 5 with the upper end of inner layer sleeve 6; When being under pressure, rod member does the time spent, the upper end relative motion of outer layer sleeve lower end and inner layer sleeve, piezoelectric pile pressurized; When the head rod and the second connecting rod tension, outer layer sleeve upper end and the relative motion of inner layer sleeve lower end make the piezoelectric pile pressurized equally.Thereby make the well behaved characteristic of piezoelectric pile pressurized obtain giving full play to.Pass through first transmission end plate and the second transmission end plate power transmission between inner and outer sleeves end plate and the piezoelectric pile, between first transmission end plate and the piezoelectric pile and between second transmission end plate and the inner layer sleeve by semicircle ball pivot power transmission, can realize hinged, thereby avoid the moment of flexure transmission.In the time will regulating bolt and tighten, outer layer sleeve and inner layer sleeve be co-operation each other, and be common components this moment.
The present invention is according to the strong characteristics of piezoelectric pile pressurized performance, pulling force is converted into pressure and does not bear the piezoelectricity antishock device of moment of flexure, overcome close in the past active anti-seismic control device and be merely able to realize unidirectional earthquake resistant control, and can not satisfy the problem of the demand of big displacement deformation, technical scheme provided by the invention meets the stress characteristic of civil engineering structure more, can better improve the anti-seismic performance of structure under seismic load.
Above content be in conjunction with concrete optimal technical scheme to further describing that the present invention did, can not assert that concrete enforcement of the present invention is confined to these explanations.For the general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, can also make some simple deduction or replace, all should be considered as belonging to protection scope of the present invention.
Claims (6)
1. a piezoelectric telescope-feed tension compression bidirectional stress initiative anti-seismic control device comprises outer layer sleeve, is arranged at the fastening force changing nut of outer layer sleeve upper end, passes the head rod of fastening force changing nut; Be arranged at second connecting rod of outer layer sleeve bottom; It is characterized in that: be provided with the inner layer sleeve of hollow structure in the described outer layer sleeve, be placed with piezoelectric pile in the described inner layer sleeve; The upper end and the fastening force changing nut of described inner layer sleeve are connected by bolt; Be provided with first transmission end plate between described inner layer sleeve upper end and the piezoelectric pile upper end; Be provided with second transmission end plate of band hinge between described inner layer sleeve bottom and the piezoelectric pile bottom; Described inner sleeve upper surface inwall is provided with in motion process and contacted first projection of first transmission end plate; Inboard, described outer sleeve lower surface is provided with in motion process and cuts with scissors contacted projection with second transmission end plate.
2. piezoelectric telescope-feed tension compression bidirectional stress initiative anti-seismic control device according to claim 1 is characterized in that: be provided with the space between described outer layer sleeve and the inner layer sleeve upper/lower terminal.
3. piezoelectric telescope-feed tension compression bidirectional stress initiative anti-seismic control device according to claim 2 is characterized in that: between described outer layer sleeve and the inner layer sleeve upper/lower terminal adjusting bolt is set.
4. the piezoelectric telescope-feed tension compression bidirectional stress initiative anti-seismic control device of stating according to claim 3 is characterized in that: described projection is for oval.
5. the piezoelectric telescope-feed tension compression bidirectional stress initiative anti-seismic control device of stating according to claim 4, it is characterized in that: described hinge is the semicircle sphere.
6. the piezoelectric telescope-feed tension compression bidirectional stress initiative anti-seismic control device of stating according to claim 5, it is characterized in that: described piezoelectric pile is cuboid or cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102545897A CN101736829B (en) | 2009-12-29 | 2009-12-29 | Piezoelectric telescope-feed tension compression bidirectional stress initiative anti-seismic control device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102545897A CN101736829B (en) | 2009-12-29 | 2009-12-29 | Piezoelectric telescope-feed tension compression bidirectional stress initiative anti-seismic control device |
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| CN101736829A true CN101736829A (en) | 2010-06-16 |
| CN101736829B CN101736829B (en) | 2012-02-08 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102966200A (en) * | 2012-11-26 | 2013-03-13 | 西安建筑科技大学 | Piezoelectric semiactive friction damper |
| CN103469922A (en) * | 2013-09-12 | 2013-12-25 | 南京工业大学 | Device for intelligently detecting maintenance-free steel-composite material buckling restrained brace |
| CN104196942A (en) * | 2014-07-10 | 2014-12-10 | 长安大学 | Active damping vibration isolation bearing device |
| CN104947824A (en) * | 2015-04-30 | 2015-09-30 | 东南大学 | Overlapping self-centering frictional energy-dissipating brace |
| CN105864353A (en) * | 2016-06-12 | 2016-08-17 | 哈尔滨工程大学 | Inertia-type hybrid vibration isolator based on piezoelectric stack |
| CN106401256A (en) * | 2016-10-17 | 2017-02-15 | 南京大德减震科技有限公司 | Initial rigidity adjustable rubber air spring damper |
| CN106567584A (en) * | 2016-10-17 | 2017-04-19 | 南京大德减震科技有限公司 | Three-dimensional shock isolation device with vertical initial stiffness capable of being preset |
| CN113224971A (en) * | 2021-06-04 | 2021-08-06 | 苏州丰泰医疗用品贸易有限公司 | Pen-shaped piezoelectric ceramic stack displacement device |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002013586A (en) * | 2000-06-30 | 2002-01-18 | Hitachi Zosen Corp | Seismic isolation apparatus for structure |
| JP3826355B2 (en) * | 2002-08-30 | 2006-09-27 | 清水建設株式会社 | Seismic control structure of structure |
| NZ540316A (en) * | 2005-05-24 | 2007-02-23 | Geoffrey John Thompson | Kinetic energy-absorbing and force-limiting connecting means |
| CN101250909B (en) * | 2008-03-28 | 2010-07-07 | 东南大学 | Piezoelectricity friction intelligent damper |
| CN101565973B (en) * | 2009-04-25 | 2010-12-29 | 大连理工大学 | Magnetorheological-shape memory alloy hollow ball intelligent vibration isolator |
-
2009
- 2009-12-29 CN CN2009102545897A patent/CN101736829B/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102966200A (en) * | 2012-11-26 | 2013-03-13 | 西安建筑科技大学 | Piezoelectric semiactive friction damper |
| CN103469922A (en) * | 2013-09-12 | 2013-12-25 | 南京工业大学 | Device for intelligently detecting maintenance-free steel-composite material buckling restrained brace |
| CN104196942A (en) * | 2014-07-10 | 2014-12-10 | 长安大学 | Active damping vibration isolation bearing device |
| CN104947824A (en) * | 2015-04-30 | 2015-09-30 | 东南大学 | Overlapping self-centering frictional energy-dissipating brace |
| CN104947824B (en) * | 2015-04-30 | 2017-06-23 | 东南大学 | A kind of bridging type self-centering friction damped braced |
| CN105864353A (en) * | 2016-06-12 | 2016-08-17 | 哈尔滨工程大学 | Inertia-type hybrid vibration isolator based on piezoelectric stack |
| CN106401256A (en) * | 2016-10-17 | 2017-02-15 | 南京大德减震科技有限公司 | Initial rigidity adjustable rubber air spring damper |
| CN106567584A (en) * | 2016-10-17 | 2017-04-19 | 南京大德减震科技有限公司 | Three-dimensional shock isolation device with vertical initial stiffness capable of being preset |
| CN113224971A (en) * | 2021-06-04 | 2021-08-06 | 苏州丰泰医疗用品贸易有限公司 | Pen-shaped piezoelectric ceramic stack displacement device |
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| CN101736829B (en) | 2012-02-08 |
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Granted publication date: 20120208 Termination date: 20121229 |