CN1439784A - Conical marmem dampers - Google Patents
Conical marmem dampers Download PDFInfo
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- CN1439784A CN1439784A CN 03111064 CN03111064A CN1439784A CN 1439784 A CN1439784 A CN 1439784A CN 03111064 CN03111064 CN 03111064 CN 03111064 A CN03111064 A CN 03111064A CN 1439784 A CN1439784 A CN 1439784A
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- damper
- conical
- memory alloy
- shape memory
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- Vibration Dampers (AREA)
Abstract
A conic marmen damper for the vibration control of civil engineering structure and sea engineering structure including sea platform is composed of the damper, upper connecting plate fixed to top end of damper, and lower connecting plate fixed to bottom end of damper. Its advantages are high effect on eliminating earthquake energy, superelasticity, high resistance to corrosion and fatigue, and long service life.
Description
Technical field: the present invention relates to be used for a kind of vibration control apparatus of building, offshore engineering structure, be specifically related to the improvement of the shape and the structure of marmem damper.
Background technology: traditional civil engineering structure seismic design is come earthquake energy by the elastic-plastic deformation of structural element, reach the purpose that alleviates geological process, but the power consumption of the elastoplasticity of structural element can cause damage to structure inevitably, or even the damage that can not repair, and cause very big permanent set.The passive energy dissipation technology consumes the seismic energy that was consumed by structural element (for example beam column node) originally, the distortion and the damage that have alleviated structure greatly by passive energy-dissipating device is set in structure.Present existing energy consumer mainly contains four classes: frcition damper, metal yield damper, viscous damper and viscoelastic damper.The metal yield damper is because of its energy dissipation capacity is strong, stable performance, cheap, in engineering, be easier to apply, but the metal yield damper is made troubles to building structure especially offshore platform structure technology because its generation plastic strain almost is expendable.
Summary of the invention: the objective of the invention is to develop a kind of conical in shape memory alloy damper, it is long that it should have corrosion-resistant, antifatigue, super-elasticity, life-span, can effectively consume the energy of earthquake, reduce earthquake and bring the characteristics of damage for civil engineering structure or offshore platform structure.The present invention comprises damper 1, upper junction plate 2, lower connecting plate 3; Upper junction plate 2 is fixed on the upper end of damper 1, and lower connecting plate 3 is fixed on the lower end of damper 1, upper junction plate 2 with vertically have the through hole 4 that is connected usefulness with connected body above the lower connecting plate 3.Described marmem is a Nitinol.The present invention is used for civil engineering structure or offshore platform structure, after vibrations take place, engineering structures generation lateral deformation, damper moves side direction, deformed owing to shearing, damper itself enters super-elasticity when displacement is big, because the recoverable strain of marmem is big, so very big shear strain can take place, when unloading, because the superelastic properties of marmem itself, damper returns to original shape again, thereby consumed energy not only plays position-limiting action but also play the power consumption effect.That the present invention has is corrosion-resistant, antifatigue, super-elasticity, life-span are long, can effectively consume the energy of earthquake, reduces earthquake and brings the advantage of damage for civil engineering structure or offshore platform structure.
Description of drawings: Fig. 1 is an overall structure schematic diagram of the present invention, Fig. 2 is the perspective view of Fig. 1, Fig. 3 is the structural representation of the specific embodiment two, Fig. 4 is the perspective view of Fig. 3, Fig. 5 is the structural representation of the specific embodiment three, and Fig. 6 is the structural representation of the specific embodiment four.
The specific embodiment one: (referring to Fig. 1, Fig. 2) present embodiment is made up of damper 1, upper junction plate 2, lower connecting plate 3; Upper junction plate 2 is fixed on the upper end of damper 1, and lower connecting plate 3 is fixed on the lower end of damper 1, upper junction plate 2 with vertically have the through hole 4 that is connected usefulness with connected body above the lower connecting plate 3.Damper 1 is a truncated cone, and the middle part of damper 1 vertically has through hole 5 up and down.The shape of damper 1 taper can consume the energy of earthquake equably and not have directionality.Have the purpose of through hole 5 in the damper 1, the one, economical with materials, the 2nd, can bring into play the super-elasticity of marmem itself better.
The specific embodiment two: the difference of (referring to Fig. 3, Fig. 4) present embodiment and the specific embodiment one is that damper 1 is to be connected and fixed by a circular cone stage body and an inverted cone stage body to form, and the circular cone stage body is following, and the inverted cone stage body is last.Other composition is identical with the specific embodiment one with annexation.In the present embodiment since the shape of damper 1 be two circular cone stage bodies last end face relative fixed together, can resist vibrations from all directions, more be applicable to the occasions such as ocean that ambient conditions is more abominable.
The specific embodiment three: the difference of (referring to Fig. 5) present embodiment and the specific embodiment one is that damper 1 is for going up little thin-walled hollow structure down greatly, and the section bus of damper 1 is a sinusoidal waveform 6.Other composition is identical with the specific embodiment one with annexation.
The specific embodiment four: the difference of (referring to Fig. 6) present embodiment and the specific embodiment three is that the section bus of damper 1 is a broken line shape 7.Other composition is identical with the specific embodiment three with annexation.
Marmem also is a kind of metal material, and it has corrosion-resistant, antifatigue, performances such as super-elasticity.Super-elasticity is meant marmem under certain conditions, produces a kind of unusual elastic reaction owing to undergoing phase transition between parent phase one martensite and the martensite-martensite.The super-elasticity character of marmem with other ordinary metallic material load, the unloading circulation is compared that many advantages are arranged: the fatigue properties of super elastic shape memory alloy are fine, and occur damage inevitably in other material loading and unloading circulation, influence the life-span; Marmem recoverable strain value very big (6%～8%), common metal material is difficult to realize; Because the austenite modulus of elasticity is greater than the martensite modulus of elasticity, the marmem modulus of elasticity raises with temperature and increases (opposite with common metal), and this makes it still keep high elastic modulus under higher temperature.Therefore, utilize the marmem making to be used for damper spacing and power consumption prospect is arranged very much.
Claims (6)
1, conical in shape memory alloy damper, it comprises damper (1), upper junction plate (2), lower connecting plate (3); It is characterized in that upper junction plate (2) is fixed on the upper end of damper (1), lower connecting plate (3) is fixed on the lower end of damper (1), upper junction plate (2) with vertically have the through hole (4) that is connected usefulness with connected body above the lower connecting plate (3).
2, conical in shape memory alloy damper according to claim 1 is characterized in that damper (1) is a truncated cone.
3, conical in shape memory alloy damper according to claim 1 is characterized in that the middle part of damper (1) vertically has through hole (5) up and down.
4, conical in shape memory alloy damper according to claim 1 is characterized in that damper (1) is to be connected and fixed by a circular cone stage body and an inverted cone stage body to form, and the circular cone stage body is following, and the inverted cone stage body is last.
5, conical in shape memory alloy damper according to claim 1 is characterized in that damper (1) for going up little thin-walled hollow structure down greatly, and the section bus of damper (1) is sinusoidal waveform (6).
6, conical in shape memory alloy damper according to claim 1, the section bus that it is characterized in that damper (1) are broken line shape (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03111064 CN1439784A (en) | 2003-02-24 | 2003-02-24 | Conical marmem dampers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03111064 CN1439784A (en) | 2003-02-24 | 2003-02-24 | Conical marmem dampers |
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| CN1439784A true CN1439784A (en) | 2003-09-03 |
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| CN 03111064 Pending CN1439784A (en) | 2003-02-24 | 2003-02-24 | Conical marmem dampers |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101070715B (en) * | 2007-04-06 | 2010-09-08 | 大连理工大学 | Energy-consumption resetting shape memory alloy damper |
| 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 |
| CN102425246A (en) * | 2011-10-19 | 2012-04-25 | 沈阳建筑大学 | Multipurpose damper made of shape memory alloy skew-pulled in multidimensional space |
| CN102505768A (en) * | 2011-10-19 | 2012-06-20 | 沈阳建筑大学 | Multidirectional six-cone-cylinder shape memory alloy damper |
| CN103147511A (en) * | 2013-03-07 | 2013-06-12 | 哈尔滨工程大学 | Shock-absorbing energy-consuming supporting seat made of shape memory alloy |
| 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 |
-
2003
- 2003-02-24 CN CN 03111064 patent/CN1439784A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101070715B (en) * | 2007-04-06 | 2010-09-08 | 大连理工大学 | Energy-consumption resetting shape memory alloy damper |
| 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 |
| CN102425246A (en) * | 2011-10-19 | 2012-04-25 | 沈阳建筑大学 | Multipurpose damper made of shape memory alloy skew-pulled in multidimensional space |
| 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 |
| CN102425246B (en) * | 2011-10-19 | 2014-04-23 | 沈阳建筑大学 | Multipurpose damper made of shape memory alloy skew-pulled in multidimensional space |
| CN103147511A (en) * | 2013-03-07 | 2013-06-12 | 哈尔滨工程大学 | Shock-absorbing energy-consuming supporting seat made of shape memory alloy |
| CN103147511B (en) * | 2013-03-07 | 2016-04-20 | 哈尔滨工程大学 | A kind of shape memory alloy damping energy dissipating support |
| 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 |
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