CN2937644Y - Hydraulic speed increasing magnetic rheological vibration damper - Google Patents
Hydraulic speed increasing magnetic rheological vibration damper Download PDFInfo
- Publication number
- CN2937644Y CN2937644Y CN 200620092772 CN200620092772U CN2937644Y CN 2937644 Y CN2937644 Y CN 2937644Y CN 200620092772 CN200620092772 CN 200620092772 CN 200620092772 U CN200620092772 U CN 200620092772U CN 2937644 Y CN2937644 Y CN 2937644Y
- Authority
- CN
- China
- Prior art keywords
- big
- cylinder
- magneto
- damper
- hydraulic pressure
- Prior art date
- 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
Links
- 238000013016 damping Methods 0.000 claims abstract description 19
- 239000012530 fluid Substances 0.000 claims description 23
- 238000007789 sealing Methods 0.000 claims description 19
- 229910000831 Steel Inorganic materials 0.000 claims description 14
- 239000010959 steel Substances 0.000 claims description 14
- 239000010720 hydraulic oil Substances 0.000 claims description 2
- 239000010727 cylinder oil Substances 0.000 claims 1
- 230000021715 photosynthesis, light harvesting Effects 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 8
- 230000033001 locomotion Effects 0.000 description 5
- 230000001629 suppression Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000003321 amplification Effects 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Vibration Prevention Devices (AREA)
Abstract
The utility model is a magneto-rheological damping device which can be used for vibration reduction of building structures such as offshore platforms and high-rise buildings, etc. A big hydraulic cylinder and a small hydraulic cylinder are connected with a magneto-rheological damper sequentially and a piston rod of the big hydraulic cylinder serves as the velocity input end. The action of amplifying the velocity by the hydraulic cylinders with different internal diameters is utilized to pass the structure relative velocity to the magneto-rheological damper to make the energy dissipation capacity of the magneto-rheological damper sufficiently performed. The device is characterized in that the utility model has a simple structure and a high precision, responds quickly and can be easily processed.
Description
Technical field
The utility model relates to a kind of magneto-rheological vibration damping device, in particular for the MR damper of building structure vibration dampings such as ocean platform, tall building.
Background technique
MR damper have the power consumption effective, fast the response and the wide advantage of regulation range, be widely used in the structural vibration reduction field.Yet, when being applied to structures such as ocean platform, the effectiveness in vibration suppression of MR damper is undesirable, this is because the structure as the ocean platform is isolated structure, the two ends of MR damper all can only be installed on the ocean platform, if the direction of vibration basically identical of whole platform structure, the speed difference at damper two ends and platform structure tie point place is just very little, cause the piston rod movement speed of damper input end very little, the damping force that is produced is also very little.MR damper depends on that to the effectiveness in vibration suppression of structure damper produces the size of damping force, for improving effectiveness in vibration suppression, will manage to improve the movement velocity of damper rod, to increase damping force.
Summary of the invention
The purpose of this utility model, provide a kind of hydraulic pressure speedup magneto-rheological vibration damping device, this device amplifies the movement velocity that MR damper is experienced by hydraulic pressure speedup cylinder, improves damping force, to overcome the shortcoming of existing MR damper at isolated structural vibration reduction weak effects such as ocean platforms.
The technical solution of the utility model is: a kind of hydraulic pressure speedup magneto-rheological vibration damping device, by MR damper, hydraulic pressure speedup cylinder and steel shell are formed, hydraulic pressure speedup cylinder is to interconnect by two, big sealing fluid cylinder pressure and little sealing fluid cylinder pressure that internal diameter is different are composed in series, in two cylinders big piston is housed respectively, small piston and hydraulic oil, big piston, be connected to big piston bar and small piston rod on the small piston respectively, big sealing fluid cylinder pressure is made an integral body at the steel shell tip position and with steel shell, the big piston bar stretches out input end as this device vibration velocity from cylinder body, MR damper is positioned in the steel shell, there is an end of piston rod to be connected with the small piston rod of hydraulic pressure speedup cylinder, the other end is fixed on the bottom of steel shell, hydraulic pressure speedup cylinder is provided with logical hydraulic fluid port and relief opening, also oil pressure gauge can be housed, be used to observe in-cylinder pressure.
According to the working fluid principle of continuity, the useful area and the speed of two variable-area sealing fluid cylinder pressure pistons that interconnect are inversely proportional to, when the big piston area is several times as much as the small piston area, and the fast several times of the comparable big piston bar of the movement velocity of small piston rod.The input end and the bottom of hydraulic pressure speedup magneto-rheological vibration damping device are installed structurally, when structural vibration, when driving the motion of big piston bar, small piston rod is delivered on the MR damper after speed is amplified, and has increased the damping force of MR damper, has improved effectiveness in vibration suppression.The relative position of steel shell energy fixed hydraulic speedup cylinder and MR damper makes hydraulic pressure speedup cylinder give full play to the effect of amplification speed.Factors such as comprehensive amplification speed needs, easy to make, the internal diameter that can select big sealing fluid cylinder pressure be little sealing fluid cylinder pressure 3-5 doubly.
Use the utility model, even the structure relative velocity is extremely limited, still can give full play to the damping effect of MR damper by the times magnification speed of design hydraulic pressure speedup cylinder, this device can be used for offshore platform structure and the isostructural vibration damping of tall building.
Description of drawings
Fig. 1 is the structural representation of hydraulic pressure speedup magneto-rheological vibration damping device.
Among the figure, 1 is small piston rod, and 2 is small piston, and 3 is big piston, and 4 is the big piston bar, and 5 is connecting rod, and 6 is MR damper, and 7 is steel shell, and 8 is small cylinder, and 9 are logical hydraulic fluid port, and 10 is relief opening, and 1 is oil pressure gauge, and 12 is big oil hydraulic cylinder.
Embodiment:
Hydraulic pressure speedup magneto-rheological vibration damping device as shown in Figure 1, hydraulic pressure speedup cylinder be by two interconnect, big sealing fluid cylinder pressure (12) and little sealing fluid cylinder pressure (8) that internal diameter is different be composed in series, big sealing fluid cylinder pressure is equipped with big piston (3) and connects big piston bar (4), little sealing fluid cylinder pressure is equipped with small piston (2) and connects small piston rod (1), steel shell (7) top inner wall welds together with the outer wall of cylinder block of big oil hydraulic cylinder (12), and big piston bar (4) is the vibration velocity input end; The piston rod of MR damper (6) links to each other with small piston rod (1), and the bottom of MR damper is fixed on the bottom of steel shell by connecting rod (5); Big oil hydraulic cylinder (12) is provided with a logical hydraulic fluid port (9), a relief opening (10), an oil pressure gauge (11), logical hydraulic fluid port (9) and relief opening (10) adopt the sealing bolt sealing, oil pressure gauge (11) is used to observe in-cylinder pressure, must be noted that during oiling in oil hydraulic cylinder and do not leave air in the chamber.The internal diameter of big sealing fluid cylinder pressure is 3-5 a times of little sealing fluid cylinder pressure.When being fixed on the vibration velocity input end of this device and bottom in offshore platform structure or other building structure, 2 bigger connections of relative velocity on the choice structure of should trying one's best.
Claims (3)
1, a kind of hydraulic pressure speedup magneto-rheological vibration damping device, it is characterized in that, this device is by MR damper, hydraulic pressure speedup cylinder and steel shell are formed, hydraulic pressure speedup cylinder is to interconnect by two, big sealing fluid cylinder pressure and little sealing fluid cylinder pressure that internal diameter is different are composed in series, in two cylinders big piston is housed respectively, small piston and hydraulic oil, big piston, be connected to big piston bar and small piston rod on the small piston respectively, big sealing fluid cylinder pressure is made an integral body at the steel shell tip position and with steel shell, the big piston bar stretches out input end as this device vibration velocity from cylinder body, MR damper is positioned in the steel shell, there is an end of piston rod to be connected with the small piston rod of hydraulic pressure speedup cylinder, the other end is fixed on the bottom of steel shell, and hydraulic pressure speedup cylinder is provided with logical hydraulic fluid port and relief opening.
2, magneto-rheological vibration damping device according to claim 1 is characterized in that, the internal diameter of big sealing fluid cylinder pressure is 3-5 a times of little sealing fluid cylinder pressure.
3, magneto-rheological vibration damping device according to claim 1 and 2 is characterized in that, on the hydraulic pressure speedup cylinder oil pressure gauge is housed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620092772 CN2937644Y (en) | 2006-08-10 | 2006-08-10 | Hydraulic speed increasing magnetic rheological vibration damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620092772 CN2937644Y (en) | 2006-08-10 | 2006-08-10 | Hydraulic speed increasing magnetic rheological vibration damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2937644Y true CN2937644Y (en) | 2007-08-22 |
Family
ID=38361671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620092772 Expired - Fee Related CN2937644Y (en) | 2006-08-10 | 2006-08-10 | Hydraulic speed increasing magnetic rheological vibration damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2937644Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101649880B (en) * | 2009-09-16 | 2011-02-16 | 中国科学技术大学 | Double-cylinder by-pass type magnetorheological vibration damper |
| CN104816603A (en) * | 2015-04-16 | 2015-08-05 | 江苏大学 | Linear motor type energy-feedback suspension bracket for heavy-duty vehicles |
-
2006
- 2006-08-10 CN CN 200620092772 patent/CN2937644Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101649880B (en) * | 2009-09-16 | 2011-02-16 | 中国科学技术大学 | Double-cylinder by-pass type magnetorheological vibration damper |
| CN104816603A (en) * | 2015-04-16 | 2015-08-05 | 江苏大学 | Linear motor type energy-feedback suspension bracket for heavy-duty vehicles |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070822 Termination date: 20100810 |