CN204694441U - Inner support formula spring hangs wire Segment Model vibration measuring test unit - Google Patents
Inner support formula spring hangs wire Segment Model vibration measuring test unit Download PDFInfo
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- CN204694441U CN204694441U CN201520226463.XU CN201520226463U CN204694441U CN 204694441 U CN204694441 U CN 204694441U CN 201520226463 U CN201520226463 U CN 201520226463U CN 204694441 U CN204694441 U CN 204694441U
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- 238000012360 testing method Methods 0.000 title claims abstract description 50
- 238000009434 installation Methods 0.000 claims abstract description 4
- 230000033001 locomotion Effects 0.000 claims description 11
- 239000011521 glass Substances 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 238000005034 decoration Methods 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 241001074085 Scophthalmus aquosus Species 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 description 10
- 239000011248 coating agent Substances 0.000 description 8
- 238000000576 coating method Methods 0.000 description 8
- 230000005611 electricity Effects 0.000 description 8
- 230000007246 mechanism Effects 0.000 description 8
- 239000004020 conductor Substances 0.000 description 5
- 229910000838 Al alloy Inorganic materials 0.000 description 4
- 230000009471 action Effects 0.000 description 4
- 238000013016 damping Methods 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 4
- 230000004044 response Effects 0.000 description 4
- 238000005816 glass manufacturing process Methods 0.000 description 3
- 235000010627 Phaseolus vulgaris Nutrition 0.000 description 2
- 244000046052 Phaseolus vulgaris Species 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
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- 230000008859 change Effects 0.000 description 1
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- 230000004995 multiple fission Effects 0.000 description 1
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- Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
Abstract
A kind of inner support formula spring hangs wire Segment Model vibration measuring test unit, comprise Segment Model, be fixedly mounted on the support column of both sides in test chamber, the upper beam and underbeam that can move up and down along it adjustment position are all installed between homonymy support column, two vertical uprighting springs that also installation site is adjustable are installed between described upper beam and underbeam, described uprighting spring are provided with horizontally disposed suspention cross bar; The two ends of described Segment Model all with an end plate connection, described end plate is connected with close suspention cross bar by web member, and the both sides of described web member are connected with two support columns of homonymy respectively by horizontal spring.Segment Model of the present utility model is connected on suspention cross bar by end plate, web member, Segment Model freely can also be rotated around self inertia axle with vertically free translation, simultaneously web member is connected with support column by horizontal spring, makes Segment Model can free translation in the horizontal direction.
Description
Technical field
The utility model relates to the test unit of design ultra-high-tension power transmission line wind force proofing design research field, particularly relates to a kind of inner support formula spring and hangs wire Segment Model vibration measuring test unit.
Background technology
It is the one significantly low-frequency vibration occurred under wind action after wire icing that ice coating wire is waved.When waving generation, gently then cause the wearing and tearing of component and the fracture of main material, heavy then cause whole piece electric power line pole tower continuous collapse, thus cause huge economic loss.Den-Hartog vertically excites and waves mechanism when thinking that the aerodynamic lift negative slope amplitude in icing cross section is greater than aerodynamic drag, and wire vertical motion unstability causes waves; Nigol reverses and excites and waves mechanism, when the damping of ice coating wire aerodynamic twist exceedes wire inherent damping for negative and amplitude by excitement of torsional unstability.Because the unstability typing interpretation of these two kinds of mechanism to conductor galloping is limited, therefore need the experimental study of carrying out waving mechanism about many division ice coating wires for actual transmission line of electricity, it is crucial for correctly simulating the multistage natural frequency of vibration of actual transmission line of electricity in this kind of test and accurately recording its motor imagination.Regrettably just at present, domestic relevant research institution also do not have a kind of without the need to damaging wind-tunnel original structure, easy to loading and unloading, form is variable, cheap and be applicable to most multiple fission conductor Segment Model inner support formula test unit.
Summary of the invention
The purpose of this utility model is to provide a kind of without the need to damaging wind-tunnel original structure, easy to loading and unloading, form is variable, cheap and be applicable to the inner support formula test unit of the wire Segment Model to different transmission line of electricity self-vibration characteristic, different conductor division number, different icing shape.The waving and identify its air damping, judge to dance wind speed of different transmission line of electricity many divisions ice coating wire under can being used for Simulation of Complex situation, thus the inner support formula spring that the research of waving mechanism for many division ice coating wires lays the foundation hangs wire Segment Model vibration measuring test unit.
The technical solution adopted in the utility model is:
A kind of inner support formula spring hangs wire Segment Model vibration measuring test unit, it is characterized in that: comprise Segment Model, be fixedly mounted on the support column of both sides in test chamber, the upper beam and underbeam that can move up and down along it adjustment position are all installed between homonymy support column, two vertical uprighting springs that also installation site is adjustable are installed between described upper beam and underbeam, described uprighting spring are provided with horizontally disposed suspention cross bar; The two ends of described Segment Model all with an end plate connection, described end plate is connected with close suspention cross bar by web member, and the both sides of described web member are connected with two support columns of homonymy respectively by horizontal spring.Segment Model of the present utility model is connected on suspention cross bar by end plate, web member, Segment Model freely can also be rotated around self inertia axle with vertically free translation, simultaneously web member is connected with support column by horizontal spring, makes Segment Model can free translation in the horizontal direction.
Further, the both sides of described web member are equipped with moveable band hanging wheel air duct board, and the inner side of described band hanging wheel air duct board can close connection at web member place, and outside it, seamless link has guiding device.In order to allow a whole set of response test device, by wind field interference, Segment Model can in free movement under Wind, and band hanging wheel air duct board and guiding device slip into from both sides, form the homogeneous winds of high-quality and response test system is affected from wind field in wind-tunnel.
Further, the windowpane position that described Segment Model is right against wind-tunnel wall is arranged, connected end plate is that organic glass makes, described band hanging wheel air duct board is just provided with view window to the position of Segment Model, testing crew is made from the motion state of wind-tunnel External Observation Segment Model under wind action, and to utilize monocular CCD to survey the moving displacement time-histories of Segment Model.
Further, described band hanging wheel air duct board makes of joining steel skeleton in decoration panel, and described guiding device makes of organic glass.Described band hanging wheel air duct board is for ensureing that joining steel skeleton in its flatness and verticality decoration panel makes, guiding device organic glass makes and must ensure as far as possible and be with hanging wheel air duct board slitless connection, also must to form the homogeneous winds of high-quality on the same perpendicular of each leisure of strict guarantee near the two sides of Segment Model.
Further, the end face of described test chamber and bottom surface are separately installed with getting on the right track and lower railway of ribbon supply hanging wheel air duct board and guiding device movement, and convenient band hanging wheel air duct board and guiding device move.
Further, described web member comprise one with the disk type connection member of end plate connection and the barrel connector that is connected with suspention cross bar, described disk type connection member is connected with barrel connector, and described horizontal spring is connected with barrel connector.Suspention cross bar is connected with barrel connector, barrel connector is connected with disk type connection member again, the end plate of Segment Model is fixedly mounted on disk type connection member, and Segment Model is fixed between two end plates, and Segment Model freely can also be rotated around self inertia axle with vertically free translation.Barrel connector and disk type connection member adopt aluminium alloy to make, and suspend cross bar in midair, all connect with bolt between barrel connector and disk type connection member, all can adjust separately respective specification for different testing requirementss.
Further, described barrel connector is provided with the connecting screw rod for being connected with horizontal spring.Described connecting screw rod coordinates the ring-bolt on support column in suitable chute, and horizontal spring can be made under the condition not touching other test parts not provide addition to the vertical rigidity of system.
Further, described upper beam, underbeam, support column are all provided with and along the ring-bolt of its electrodeless slip, described uprighting spring, horizontal spring can be equipped with the hook be connected with corresponding ring-bolt.Ring-bolt can be fixing along the stepless slip of beam groove by its top nut of degree of tightness, the convenient spacing regulating uprighting spring.
Further, described suspention cross bar is provided with perforating that is that uprighting spring wears and that arrange along long axis direction, and the position in order to mating band collar bolt regulates the spacing of uprighting spring, and suspention cross bar aluminium alloy makes.
Further, described upper beam and underbeam are all fixedly connected with on the support columns by screw bolt and nut cooperation.Upper beam, underbeam and support column are all with a double flute aluminium profile, and upper beam, underbeam can be fixing along the stepless slip of post groove by the nut on degree of tightness bean column node, facilitate selecting of different size buckle uprighting spring.
The beneficial effects of the utility model: this device is built in wind-tunnel without the need to damaging wind-tunnel original structure, easy to loading and unloading, form is variable, cheap and be applicable to the wire Segment Model of different conductor division number, different icing shape, different transmission line of electricity self-vibration characteristic.The waving and identify its air damping, judge to dance wind speed of different transmission line of electricity many divisions ice coating wire under can being used for Simulation of Complex situation, thus the research of waving mechanism for many division ice coating wires lays the foundation.
Accompanying drawing explanation
Fig. 1 is front view of the present utility model.
Fig. 2 is vertical view of the present utility model.
3a in Fig. 3 is the front view of suspention cross bar, and 3b is the front view of barrel connector, and 3c is the front view of disk type connection member.
In Fig. 4,4a is the vertical view of suspention cross bar, and 4b is the vertical view of barrel connector, and 4c is the vertical view of disk type connection member.
Fig. 5 is the schematic diagram of upper/lower guide, band hanging wheel air duct board and guiding device.
In Fig. 6,6a is the structural map of band hanging wheel air duct board A1, A2, A5, A6, B1, B2, B5, B6, and 6b is the structural map of band hanging wheel air duct board A3, A4, and 6c is the structural map of band hanging wheel air duct board B3, and 6d is the structural map of band hanging wheel air duct board B4.
Embodiment
Below in conjunction with specific embodiment, the utility model is further described, but the utility model is not confined to these embodiments.One skilled in the art would recognize that the utility model covers all alternativess, improvement project and the equivalents that may comprise in Claims scope.
With reference to Fig. 1-6, a kind of inner support formula spring hangs wire Segment Model vibration measuring test unit, comprise Segment Model 9, be fixedly mounted on the support column 1 of both sides in test chamber, the upper beam 2 and underbeam 3 that can move up and down along it adjustment position are all installed between homonymy support column 1, two vertical uprighting springs 5 that also installation site is adjustable are installed between described upper beam 2 and underbeam 3, described uprighting spring 5 is provided with horizontally disposed suspention cross bar 6; The two ends of described Segment Model 9 are all connected with an end plate 10, and described end plate 10 is connected with close suspention cross bar 6 by web member, and the both sides of described web member are connected with two support columns 1 of homonymy respectively by horizontal spring 12.Segment Model 9 of the present utility model is connected on suspention cross bar 6 by end plate 10, web member, Segment Model 9 freely can also be rotated around self inertia axle with vertically free translation, simultaneously web member is connected with support column 1 by horizontal spring 12, makes Segment Model 9 can free translation in the horizontal direction.
The both sides of web member described in the present embodiment are equipped with moveable band hanging wheel air duct board 15, and the inner side of described band hanging wheel air duct board 15 can close connection at web member place, and outside it, seamless link has guiding device 16.In order to allow a whole set of response test device by wind field interference and Segment Model can in free movement under Wind, band hanging wheel air duct board 15 and guiding device 16 slip into from both sides, form the homogeneous winds of high-quality and response test system is affected from wind field in wind-tunnel.
The windowpane position that Segment Model 9 described in the present embodiment is right against wind-tunnel wall is arranged, connected end plate 10 is that organic glass makes, described band hanging wheel air duct board 15 is just provided with view window to the position of Segment Model, testing crew is made from the motion state of wind-tunnel External Observation Segment Model 9 under wind action, and to utilize monocular CCD to survey the moving displacement time-histories of Segment Model 9.
Be with hanging wheel air duct board 15 to be make of joining steel skeleton in decoration panel described in the present embodiment, described guiding device 16 makes of organic glass.Described band hanging wheel air duct board 15 is for ensureing that joining steel skeleton in its flatness and verticality decoration panel makes, guiding device 16 makes of organic glass and must ensure as far as possible and be with hanging wheel air duct board 15 slitless connection, also must to form the homogeneous winds of high-quality on the same perpendicular of each leisure of strict guarantee near the two sides of Segment Model.Described in the present embodiment with hanging wheel air duct board 15 by A1, A2, A3, A4, A5, A6 and B1 of relatively setting up, B2, B3, B4, B5, B6, and C1, C2, C3, C4, C5, C6 and D1 of relatively setting up, D2, D3, D4, D5, D6, wherein A1, A2, A5, A6, B1, B2, B5, B6 adopt full plank to make, as shown in Figure 6 a; A3, A4 are that center section uses transparent organic glass making instead, experimental observation, as shown in Figure 6 b; B3 is that center section uses transparent organic glass making instead and perforate, as fig. 6 c; B4 is that center section uses transparent organic glass making instead and perforate, as shown in fig 6d.C, D two sides band hanging wheel air duct board 15 adopts full wood materials and A, B face symmetry to make.
The end face of test chamber described in the present embodiment and bottom surface are separately installed with get on the right track 13 and the lower railway 14 of ribbon supply hanging wheel air duct board 15 and guiding device 16 movement, and convenient band hanging wheel air duct board 15 and guiding device 16 move.
The barrel connector 7 that web member described in the present embodiment comprises a disk type connection member 8 be connected with end plate 10 and is connected with suspention cross bar 6, described plate-like connects 8 and is connected with barrel connector 7, and described horizontal spring 12 is connected with barrel connector 7.Suspention cross bar 6 is connected with barrel connector 7, barrel connector 7 is connected with disk type connection member 8 again, the end plate 10 of Segment Model 9 is fixedly mounted on disk type connection member 8, Segment Model 9 is fixed between two end plates 10, and Segment Model 9 freely can also be rotated around self inertia axle with vertically free translation.Barrel connector 7 and disk type connection member 8 adopt aluminium alloy to make, and suspend cross bar 6 in midair, all connect with bolt between barrel connector 7 and disk type connection member 8, all can adjust separately respective specification for different testing requirementss.
Barrel connector 7 described in the present embodiment is provided with the connecting screw rod 11 for being connected with horizontal spring 12.Described connecting screw rod 11 coordinates the ring-bolt 4 on support column 1 in suitable chute, and horizontal spring 12 can be made under the condition not touching other test parts not provide addition to the vertical rigidity of system.
Upper beam 2, underbeam 3, support column 1 described in the present embodiment are all provided with and along the ring-bolt 4 of its electrodeless slip, described uprighting spring 5, horizontal spring 12 can be equipped with the hook be connected with corresponding ring-bolt 4.Ring-bolt 4 can be fixing along the stepless slip of beam groove by its top nut of degree of tightness, the convenient spacing regulating uprighting spring 5.
Suspend cross bar 6 described in the present embodiment in midair and be provided with perforating that is that uprighting spring 5 wears and that arrange along long axis direction, the position in order to mating band collar bolt regulates the spacing of uprighting spring 5, and suspention cross bar 6 makes of aluminium alloy.
Upper beam 2 described in the present embodiment and underbeam 3 are all fixedly connected on support column 1 by screw bolt and nut cooperation.Upper beam 2, underbeam 3 and support column 1 are all with a double flute aluminium profile, and upper beam 2, underbeam 3 can be fixing along the stepless slip of post groove by the nut on degree of tightness bean column node, facilitate selecting of different size buckle uprighting spring 5.
During the utility model test, first required end plate size is determined according to parameters such as conductor size, division number, icing shapes, determine to suspend in midair the size of cross bar 6 and reserving hole position and the specification of selected required uprighting spring 5 and horizontal spring 12 according to transmission line of electricity self-vibration characteristic again, then combine many division ice coating wire aerodynamic force test results vertically to be excited by Den-Hartog and wave mechanism and Nigol and reverse to excite and wave the wind angle of attack that unstability may occur mechanism determination wire, end plate 10 is gone to test wind angle of attack screw bolt and nut and be fixed on disk type connection member 8.Suspention cross bar 6 is installed acceleration transducer or utilized displacement measuring device to record the motor imagination of Segment Model 9, with spring base, vertical, the level of test model is adjusted to consistent with actual transmission line of electricity with the torsion natural frequency of vibration by adjustment spring rate in conjunction with measured data.Finally by band hanging wheel air duct board 15 and guiding device 16 along get on the right track 13 and lower railway 14 to move into from test model both sides and to be fixed by caging bolt, open blower fan and carry out wind tunnel test, testing crew can utilize monocular CCD to survey the moving displacement time-histories of Segment Model 9 from the motion state of wind-tunnel External Observation Segment Model 9 under wind action.Each test it should be noted that because actual transmission line wire all exists multistage mode of motion on described three degree of freedom direction, so can only select a kind of modality combinations to test.When needing to change vertical, the level of test model or reversing the natural frequency of vibration, only band hanging wheel air duct board 15 and guiding device 16 are removed certain distance toward both sides and can be operated by the caging bolt that need shed on guide rail; When needing to carry out the test of different wind angle of attack operating mode to same group of guidewire movement modality combinations, also only need operate as stated above.Reinstall caging bolt after completing Operating condition adjustment, open blower fan and carry out wind tunnel test.
Claims (10)
1. an inner support formula spring hangs wire Segment Model vibration measuring test unit, it is characterized in that: comprise Segment Model, be fixedly mounted on the support column of both sides in test chamber, the upper beam and underbeam that can move up and down along it adjustment position are all installed between homonymy support column, two vertical uprighting springs that also installation site is adjustable are installed between described upper beam and underbeam, described uprighting spring are provided with horizontally disposed suspention cross bar; The two ends of described Segment Model all with an end plate connection, described end plate is connected with close suspention cross bar by web member, and the both sides of described web member are connected with two support columns of homonymy respectively by horizontal spring.
2. a kind of inner support formula spring as claimed in claim 1 hangs wire Segment Model vibration measuring test unit, it is characterized in that: the both sides of described web member are equipped with moveable band hanging wheel air duct board, the inner side of described band hanging wheel air duct board can close connection at web member place, and outside it, seamless link has guiding device.
3. a kind of inner support formula spring as claimed in claim 2 hangs wire Segment Model vibration measuring test unit, it is characterized in that: the windowpane position that described Segment Model is right against wind-tunnel wall is arranged, connected end plate is that organic glass makes, and described band hanging wheel air duct board is just provided with view window to the position of Segment Model.
4. a kind of inner support formula spring as claimed in claim 2 hangs wire Segment Model vibration measuring test unit, it is characterized in that: described band hanging wheel air duct board makes of joining steel skeleton in decoration panel, and described guiding device makes of organic glass.
5. a kind of inner support formula spring as claimed in claim 2 hangs wire Segment Model vibration measuring test unit, it is characterized in that: the end face of described test chamber and bottom surface are separately installed with getting on the right track and lower railway of ribbon supply hanging wheel air duct board and guiding device movement.
6. a kind of inner support formula spring as claimed in claim 1 hangs wire Segment Model vibration measuring test unit, it is characterized in that: described web member comprise one with the disk type connection member of end plate connection and the barrel connector that is connected with suspention cross bar, described disk type connection member is connected with barrel connector, and described horizontal spring is connected with barrel connector.
7. a kind of inner support formula spring as claimed in claim 6 hangs wire Segment Model vibration measuring test unit, it is characterized in that: described barrel connector is provided with the connecting screw rod for being connected with horizontal spring.
8. a kind of inner support formula spring as claimed in claim 1 hangs wire Segment Model vibration measuring test unit, it is characterized in that: described upper beam, underbeam, support column are all provided with and along the ring-bolt of its electrodeless slip, described uprighting spring, horizontal spring can be equipped with the hook be connected with corresponding ring-bolt.
9. a kind of inner support formula spring as claimed in claim 1 hangs wire Segment Model vibration measuring test unit, it is characterized in that: described suspention cross bar is provided with perforating that is that uprighting spring wears and that arrange along long axis direction.
10. a kind of inner support formula spring as described in one of claim 1 ~ 9 hangs wire Segment Model vibration measuring test unit, it is characterized in that: described upper beam and underbeam are all fixedly connected with on the support columns by screw bolt and nut cooperation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520226463.XU CN204694441U (en) | 2015-04-15 | 2015-04-15 | Inner support formula spring hangs wire Segment Model vibration measuring test unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520226463.XU CN204694441U (en) | 2015-04-15 | 2015-04-15 | Inner support formula spring hangs wire Segment Model vibration measuring test unit |
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| CN204694441U true CN204694441U (en) | 2015-10-07 |
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| CN201520226463.XU Withdrawn - After Issue CN204694441U (en) | 2015-04-15 | 2015-04-15 | Inner support formula spring hangs wire Segment Model vibration measuring test unit |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104833474A (en) * | 2015-04-15 | 2015-08-12 | 国网河南省电力公司电力科学研究院 | Inner-support spring suspended wire segment model vibration measurement test apparatus |
| CN106441783A (en) * | 2016-11-25 | 2017-02-22 | 中国石油天然气集团公司 | Testing device for detecting pneumatic correlation of pipeline suspension bridge in turbulent wind field |
| CN106441784A (en) * | 2016-11-25 | 2017-02-22 | 中国石油天然气集团公司 | Testing device for measuring static three-component force coefficient of cable-suspended piping bridge |
| CN107345846A (en) * | 2017-07-28 | 2017-11-14 | 大连理工大学 | Freely vertical and twisted coupling vibrates flow tunnel testing device to a kind of large amplitude |
| CN108414186A (en) * | 2018-02-08 | 2018-08-17 | 大连理工大学 | A kind of bridge is vertical and twisted coupling large amplitude free vibration flow tunnel testing device |
| CN108444670A (en) * | 2018-03-05 | 2018-08-24 | 大连理工大学 | A kind of bridge is vertical and twisted coupling large amplitude free vibration flow tunnel testing device |
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2015
- 2015-04-15 CN CN201520226463.XU patent/CN204694441U/en not_active Withdrawn - After Issue
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104833474B (en) * | 2015-04-15 | 2017-09-05 | 国网河南省电力公司电力科学研究院 | Inner support formula spring hangs wire Segment Model vibration measuring experimental rig |
| CN104833474A (en) * | 2015-04-15 | 2015-08-12 | 国网河南省电力公司电力科学研究院 | Inner-support spring suspended wire segment model vibration measurement test apparatus |
| CN106441784B (en) * | 2016-11-25 | 2018-08-31 | 中国石油天然气集团公司 | Measure the experimental rig of pipeline suspension bridge static coefficients |
| CN106441783A (en) * | 2016-11-25 | 2017-02-22 | 中国石油天然气集团公司 | Testing device for detecting pneumatic correlation of pipeline suspension bridge in turbulent wind field |
| CN106441784A (en) * | 2016-11-25 | 2017-02-22 | 中国石油天然气集团公司 | Testing device for measuring static three-component force coefficient of cable-suspended piping bridge |
| CN107345846A (en) * | 2017-07-28 | 2017-11-14 | 大连理工大学 | Freely vertical and twisted coupling vibrates flow tunnel testing device to a kind of large amplitude |
| CN107345846B (en) * | 2017-07-28 | 2019-04-16 | 大连理工大学 | A kind of free vertical and twisted coupling vibration flow tunnel testing device of large amplitude |
| CN108414186B (en) * | 2018-02-08 | 2019-06-21 | 大连理工大学 | A kind of bridge is vertical and twisted coupling large amplitude free vibration flow tunnel testing device |
| CN108414186A (en) * | 2018-02-08 | 2018-08-17 | 大连理工大学 | A kind of bridge is vertical and twisted coupling large amplitude free vibration flow tunnel testing device |
| CN108444670A (en) * | 2018-03-05 | 2018-08-24 | 大连理工大学 | A kind of bridge is vertical and twisted coupling large amplitude free vibration flow tunnel testing device |
| CN108444670B (en) * | 2018-03-05 | 2019-06-21 | 大连理工大学 | A kind of bridge is vertical and twisted coupling large amplitude free vibration flow tunnel testing device |
| CN112945514A (en) * | 2021-01-29 | 2021-06-11 | 同济大学 | Bridge segment model wind tunnel test suspension system based on magnetic suspension principle |
| CN112945514B (en) * | 2021-01-29 | 2022-06-24 | 同济大学 | Bridge segment model wind tunnel test suspension system based on magnetic suspension principle |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20151007 Effective date of abandoning: 20170905 |