CN107354869B - Pressure control inhaul cable bridge damper - Google Patents
Pressure control inhaul cable bridge damper Download PDFInfo
- Publication number
- CN107354869B CN107354869B CN201710752602.6A CN201710752602A CN107354869B CN 107354869 B CN107354869 B CN 107354869B CN 201710752602 A CN201710752602 A CN 201710752602A CN 107354869 B CN107354869 B CN 107354869B
- Authority
- CN
- China
- Prior art keywords
- piston rod
- right piston
- left piston
- piston
- damper
- 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.)
- Active
Links
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/16—Suspension cables; Cable clamps for suspension cables ; Pre- or post-stressed cables
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
Abstract
The pressure control inhaul cable bridge damper comprises a guide cylinder body, a left piston, a right piston, a left piston rod, a right piston rod and a pressure sensor, wherein the left piston rod and the right piston rod are respectively connected with the left piston and the right piston through guide holes at two ends of the guide cylinder body; a rubber damping device is arranged between the left piston and the right piston, and two ends of the rubber damping device are respectively fixed with the left piston and the right piston; electromagnetic damping devices fixed with the left piston, the right piston, the left piston rod or the right piston rod are respectively arranged in the left piston chamber and the right piston chamber; the control device comprises a pressure sensor and an analysis controller, wherein the pressure sensor is positioned on the fixed surface of the rubber damping device and the left piston or the right piston, and when the measured value of the pressure sensor reaches a preset value, the two electromagnetic damping devices work to generate attractive force. The invention uses rubber damping in a stable state, when the inhaul cable oscillates, corresponding damping can be provided by the electromagnetic damping device, and the damping can be actively changed according to the amplitude of the stayed cable.
Description
Technical Field
The invention relates to the technical field of inhaul cable bridges, in particular to a pressure control inhaul cable bridge damper.
Background
As a main bearing member of the cable-stayed bridge, the cable-stayed cable has the characteristics of large flexibility, low self-vibration frequency (the low-order mode of the cable-stayed cable is generally below 2 Hz), relatively small damping of each-order mode (generally below 0.01) and the like. The stay cable is easy to vibrate greatly, even diverged and vibrated under the action of wind, rain, traffic and other dynamic loads, and the durability of the stay cable is seriously affected. The following drawbacks can be found in the existing oil damper technology: the processing is complex, the damping force rises faster when the speed is higher, and the energy consumption of the damper is not facilitated; the buffer air chamber increases the rigidity of the vibration reduction structure, which is unfavorable for the vibration reduction of the structure.
Disclosure of Invention
The invention aims to solve the technical problems of the prior art and provides a pressure control inhaul cable bridge damper and a pressure control inhaul cable bridge damper control device. The hydraulic damper is designed for solving the problems that the damping ratio of the stay cable is not obviously improved in the high-rubber damper, and oil damping and magnetorheological damper leakage are solved, and meanwhile, the size and the range of the damping of the damper are expected to be controlled through damper tension feedback, so that the hydraulic damper has the characteristics of compact structure, convenience in use, active damping change and the like.
In order to solve the technical problems, the invention adopts the following technical scheme:
the pressure control inhaul cable bridge damper comprises a guide cylinder body, a left piston, a right piston, a left piston rod, a right piston rod and a pressure sensor, wherein the left piston rod and the right piston rod are respectively connected with the left piston and the right piston through guide holes at two ends of the guide cylinder body; a rubber damping device is arranged between the left piston and the right piston, and two ends of the rubber damping device are respectively fixed with the left piston and the right piston; electromagnetic damping devices fixed with the left piston, the right piston, the left piston rod or the right piston rod are respectively arranged in the left piston chamber and the right piston chamber;
the device is provided with a control device, the control device comprises a pressure sensor and an analysis controller, the pressure sensor is positioned on the fixed surface of the rubber damping device and the left piston or the right piston, and when the measured value of the pressure sensor reaches a preset value, the two electromagnetic damping devices work to generate attractive force, so that the tension of the damper is automatically increased.
Further, two ends of the guide cylinder body are sealed by end covers, one end of the left piston rod is connected with the left piston, the other end of the left piston rod extends out of the cylinder body to be connected with the lug plate, one end of the right piston rod is connected with the right piston, and the other end of the right piston rod extends out of the cylinder body to be connected with the lug plate.
Further, a hinged support for being assembled with the inhaul cable is arranged on the lug plate.
Further, a sealing sleeve is arranged, one end of the sealing sleeve is connected with the end cover, and the other end of the sealing sleeve is connected with the lug plate.
Further, a wire pipeline is arranged, and the wire pipeline can be communicated with the piston chamber and the outside of the guide cylinder body.
Further, a hanging ring for hanging is arranged on the outer surface of the guide cylinder body
Further, the control device controls the electromagnetic damping based on the difference between the measured pressure and the preset pressure.
The beneficial effects of adopting above-mentioned technical scheme to produce lie in: according to the invention, rubber damping is used in a stable state, when the inhaul cable oscillates, corresponding damping can be provided through the electromagnetic damping device, and the damping is actively changed according to the pressure; the defect that the high damping rubber damper has poor damping effect for improving the stay cable is overcome; the defect that the magnetorheological damper is likely to leak liquid is overcome.
Drawings
FIG. 1 is an external schematic view of a pressure control cable bridge damper;
FIG. 2 is a cross-sectional view of a pressure control cable bridge damper;
FIG. 3 is a schematic diagram of the operation of the pressure control cable bridge damper control device.
Wherein: 1. a guide cylinder; 2. a left piston; 3. a right piston; 4. a left piston rod; 5. a right piston rod; 6. a piston chamber; 7. an electromagnetic damping device; 8. a rubber damping device; 9. an end cap; 10. ear plates; 11. a hinged support; 12. sealing sleeve; 13. a wire pipeline; 14. a hanging ring; 15. a pressure sensor.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to an embodiment of fig. 1 and 2, a pressure control cable bridge damper, a guide cylinder 1, a left piston 2, a right piston 3, a left piston rod 4, a right piston rod 5, the left piston rod 4, the right piston rod 5 are respectively connected with the left piston 2, the right piston 3 through guide holes at two ends of the guide cylinder 1; a rubber damping device 8 is arranged between the left piston 2 and the right piston 3, and two ends of the rubber damping device 8 are respectively fixed with the left piston 2 and the right piston 3; the left piston chamber and the right piston chamber are respectively provided with an electromagnetic damping device 7 which is fixed with the left piston 2, the right piston 3, the left piston rod 4 or the right piston rod 5; the control device comprises a pressure sensor 15 and an analysis controller, wherein the pressure sensor 15 is positioned on the fixed surface of the rubber damping device and the left piston or the right piston, and when the measured value of the pressure sensor 15 reaches a preset value, the two electromagnetic damping devices work to generate attractive force, so that the tension of the damper is automatically increased.
Further, referring to fig. 1 and 2, two ends of the guiding cylinder body are sealed by end caps, one end of the left piston rod 4 is connected with the left piston 2, and the other end extends out of the cylinder body to be connected with the lug plate. One end of the right piston rod 5 is connected with the left piston 3, and the other end extends out of the cylinder body to be connected with the lug plate.
Further, referring to fig. 1 and 2, a hinge bracket 11 for assembling with a cable is provided at 10.
Further, referring to fig. 2, a telescopic sealing sleeve 12 is provided, one end of the sealing sleeve 12 is connected to the end cover 9, and the other end is connected to the ear plate 10. The sealing sleeve 12 can block large particle dust and liquid and protect the piston rod from outside.
Further, referring to fig. 2, a wire line 13 is provided. The lead line 13 can be communicated with the outside of the piston chamber 6 and the guide cylinder body 1. The line 13 is used for the derivation of in-cylinder signals and the introduction of external control signals to in-cylinder elements.
Further, referring to fig. 2, a lifting ring 14 for lifting is arranged on the outer surface of the guide cylinder body 1, and the lifting ring 14 is used for lifting and loading and unloading the pressure control inhaul cable bridge damper.
Further, the control device controls the electromagnetic damping based on the difference between the measured pressure and the preset pressure.
Referring to fig. 1 to 3, the present invention operates in such a manner that a pressure control cable bridge damper is connected to a bridge cable through a hinge support 11, a pressure sensor 15 converts the internal pressure of the damper into an electrical signal, and transmits the electrical signal to an analysis controller of a pressure control cable bridge damper control device, and the analysis controller calculates the damper tension by measuring data and compares it with a preset pressure.
If the current damper pulling force is less than the preset electromagnetic intervention vibration pulling force, the pressure control inhaul cable bridge damper does not conduct electromagnetic damping intervention, the bridge inhaul cable is kept stable by means of rubber damping, when the vibration amplitude of the bridge inhaul cable is higher than the preset electromagnetic intervention vibration amplitude, the controller sends out a control signal, and the electromagnetic damping device intervenes to correct the inhaul cable by changing damping.
When the current tension is lower than the preset electromagnetic stable tension, the controller starts to send a stable maintaining signal, and when the acting force of the electromagnetic damping device 6 is lower than the preset stable magnetic force, the pressure control inhaul cable bridge damper control device stops outputting.
The foregoing is illustrative of example embodiments and is not to be construed as limiting thereof. Although a few example embodiments have been described, those skilled in the art will readily appreciate that many modifications are possible in the example embodiments without materially departing from the novel teachings and advantages of this disclosure. Accordingly, all such modifications are intended to be included within the scope of this disclosure as defined in the claims. Therefore, it is to be understood that the foregoing is illustrative of various example embodiments and is not to be construed as limited to the specific example embodiments disclosed, and that modifications to the disclosed example embodiments, as well as other example embodiments, are intended to be included within the scope of the appended claims.
Claims (7)
1. Pressure control cable bridge damper, its characterized in that: the device comprises a guide cylinder body, a left piston, a right piston, a left piston rod, a right piston rod and a pressure sensor, wherein the left piston rod and the right piston rod are respectively connected with the left piston and the right piston through guide holes at two ends of the guide cylinder body; a rubber damping device is arranged between the left piston and the right piston, and two ends of the rubber damping device are respectively fixed with the left piston and the right piston; electromagnetic damping devices fixed with the left piston, the right piston, the left piston rod or the right piston rod are respectively arranged in the left piston chamber and the right piston chamber;
the control device comprises a pressure sensor and an analysis controller, wherein the pressure sensor is positioned on the fixed surface of the rubber damping device and the left piston or the right piston, and when the measured value of the pressure sensor reaches a preset value, the two electromagnetic damping devices work to generate attractive force, so that the tension of the damper is automatically increased; when the tension of the damper is smaller than the preset electromagnetic intervention vibration tension, the pressure control inhaul cable bridge damper does not perform electromagnetic damping intervention, the bridge inhaul cable is kept stable by rubber damping, and when the vibration amplitude of the bridge inhaul cable is higher than the preset electromagnetic intervention vibration amplitude, the controller sends out a control signal, and the electromagnetic damping device intervenes to correct the inhaul cable by changing damping.
2. The pressure control cable bridge damper of claim 1, wherein: the two ends of the guide cylinder body are sealed by end covers, one end of the left piston rod is connected with the left piston, the other end of the left piston rod extends out of the cylinder body and is connected with the lug plate, one end of the right piston rod is connected with the right piston, and the other end of the right piston rod extends out of the cylinder body and is connected with the lug plate.
3. The pressure control cable bridge damper of claim 2, wherein: the ear plate is provided with a hinged support for being assembled with the inhaul cable.
4. The pressure control cable bridge damper of claim 2, wherein: the device is provided with a sealing sleeve, one end of the sealing sleeve is connected with the end cover, and the other end of the sealing sleeve is connected with the lug plate.
5. The pressure control cable bridge damper of claim 1, wherein: the guide line is arranged and can be communicated with the outside of the piston chamber and the guide cylinder body.
6. The pressure control cable bridge damper of claim 1, wherein: and a hanging ring for hanging is arranged on the outer surface of the guide cylinder body.
7. The pressure control cable bridge damper of claim 1, wherein: the control device controls the electromagnetic damping based on the difference value between the measured pressure and the preset pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710752602.6A CN107354869B (en) | 2017-08-28 | 2017-08-28 | Pressure control inhaul cable bridge damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710752602.6A CN107354869B (en) | 2017-08-28 | 2017-08-28 | Pressure control inhaul cable bridge damper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107354869A CN107354869A (en) | 2017-11-17 |
| CN107354869B true CN107354869B (en) | 2023-06-16 |
Family
ID=60288196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710752602.6A Active CN107354869B (en) | 2017-08-28 | 2017-08-28 | Pressure control inhaul cable bridge damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107354869B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102269235A (en) * | 2011-05-04 | 2011-12-07 | 江苏大学 | Magneto-rheological fluid (MRF) damper based pressure fluctuation self-adjusting system and adjusting method |
| CN103410903A (en) * | 2013-07-22 | 2013-11-27 | 宁波鑫鑫鑫寅电气有限公司 | Damping rubber buffer |
| CN205046479U (en) * | 2015-09-29 | 2016-02-24 | 中铁大桥科学研究院有限公司 | Oil gas coupling suspension cable attenuator |
| CN107084218A (en) * | 2017-05-05 | 2017-08-22 | 东南大学 | A kind of adaptive controllable electromagnetic damper |
-
2017
- 2017-08-28 CN CN201710752602.6A patent/CN107354869B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102269235A (en) * | 2011-05-04 | 2011-12-07 | 江苏大学 | Magneto-rheological fluid (MRF) damper based pressure fluctuation self-adjusting system and adjusting method |
| CN103410903A (en) * | 2013-07-22 | 2013-11-27 | 宁波鑫鑫鑫寅电气有限公司 | Damping rubber buffer |
| CN205046479U (en) * | 2015-09-29 | 2016-02-24 | 中铁大桥科学研究院有限公司 | Oil gas coupling suspension cable attenuator |
| CN107084218A (en) * | 2017-05-05 | 2017-08-22 | 东南大学 | A kind of adaptive controllable electromagnetic damper |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107354869A (en) | 2017-11-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107387656B (en) | Bridge inhaul cable damper | |
| CN107882915B (en) | Integrated magneto-rheological damper with built-in distance sensor for displacement detection | |
| CN101251164A (en) | Magnetic rheology elastic body active-passive integrated damper based on extrusion type applied force | |
| US11181165B2 (en) | Vibration mitigation device | |
| CN103758911B (en) | The magnetorheological hydro pneumatic suspension orifice valve of vehicle | |
| CN101038223A (en) | Foot end pressure sensor of multi-foot robot | |
| CN108253081B (en) | Electrorheological fluid active control liquid tuning mass damper | |
| CN207393837U (en) | Bridge cable damper | |
| CN107354869B (en) | Pressure control inhaul cable bridge damper | |
| CN103423365B (en) | Membrane type magneto-rheological damper and system | |
| CN112498478B (en) | Drag link, steering mechanism, vehicle and control method of steering mechanism | |
| CN203603296U (en) | Liquid viscoelastic damper | |
| CN108869613A (en) | A kind of universal half active magnetic rheological vibration damper | |
| CN203836065U (en) | Vehicle magneto-rheological oil-gas suspension damper valve | |
| CN204755691U (en) | Magnetic field force formula damping device | |
| CN106763410A (en) | A kind of ultralow frequency resonance free metal isolator | |
| CN202203326U (en) | Single outlet rod magnetic rheological damping device | |
| CN201526632U (en) | Vibration absorber with adjustable magnetic suspending vibration damping frequency | |
| CN204961676U (en) | Varistor buddhist nun's cylinders such as elasticity such as two -way | |
| CN207609724U (en) | A kind of damping device of machinery | |
| CN209671506U (en) | A kind of spare tyre isolation damper | |
| CN103161861A (en) | Electromagnetic anti-vibration apparatus | |
| CN203374727U (en) | Impact-load-oriented magnetorheological buffering unit structure and test platform used in same | |
| CN106402259A (en) | Inner and outer spring bumper | |
| CN207634436U (en) | A kind of high-frequency vibration servo hydraulic cylinder |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |