WO2021230422A1 - Appareil d'amortissement de vibrations en trois dimensions utilisant un amortisseur à friction et une unité de maintien d'horizontalité - Google Patents

Appareil d'amortissement de vibrations en trois dimensions utilisant un amortisseur à friction et une unité de maintien d'horizontalité Download PDF

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Publication number
WO2021230422A1
WO2021230422A1 PCT/KR2020/009497 KR2020009497W WO2021230422A1 WO 2021230422 A1 WO2021230422 A1 WO 2021230422A1 KR 2020009497 W KR2020009497 W KR 2020009497W WO 2021230422 A1 WO2021230422 A1 WO 2021230422A1
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Prior art keywords
friction damper
vibration damping
horizontal
support plate
plate
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PCT/KR2020/009497
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English (en)
Korean (ko)
Inventor
황종근
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주식회사 스마텍이앤씨
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Publication of WO2021230422A1 publication Critical patent/WO2021230422A1/fr

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21D—NUCLEAR POWER PLANT
    • G21D3/00—Control of nuclear power plant
    • G21D3/04—Safety arrangements
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00—Energy generation of nuclear origin

Definitions

  • the present invention relates to a three-dimensional vibration damping device using a friction damper and a leveling mechanism, and more particularly, an important part that performs a safe operation and stop function of a nuclear power plant from vibration and shock generated by tectonic movements such as earthquakes. It relates to a three-dimensional vibration damping device using a friction damper and a horizontal holding mechanism provided to be installed in the lower part of a built-in device.
  • a number of important nuclear power plants are installed in a nuclear power plant, and important parts for performing safe operation and stop functions of the power plant are attached and built in the nuclear power plant. They must maintain structural soundness and functionality in the event of an earthquake, as well as perform the unique functions assigned to each without malfunction.
  • the present invention installs a three-dimensional vibration damping device using a friction damper and a horizontal holding mechanism at the lower part of the nuclear power plant to attenuate the seismic force transmitted to the bottom of the nuclear power plant, and the upper part of the nuclear power plant is tilted forward/backward, left/right It has been improved to perform safe operation and stop functions by protecting without protection.
  • An object of the present invention for solving the above problems is located between the bottom plate of the device and the floor to be installed, and a friction damper configured to safely protect the device placed on the top by damping the seismic motion transmitted from the bottom surface and the horizontal
  • An object of the present invention is to provide a three-dimensional vibration damping device using a retainer.
  • Another object of the present invention is to provide a three-dimensional vibration damping device using a friction damper and a horizontal retainer configured to include a horizontal retainer and a friction damper assembly.
  • the leveling device is located on the lower side of the device and has a flat top plate as a hexahedron having a predetermined thickness and width so as to be coupled with the friction damper assembly, and the top surface is the same as the top plate. It is intended to provide a three-dimensional vibration damping device using a friction damper and a horizontal retainer that is coupled and the lower surface is composed of a lower plate coupled to the bottom surface.
  • the leveling mechanism further includes an X-type connecting link on the inner surface so that it can move up and down by earthquake motion while maintaining the horizontal of the upper and lower plates.
  • a friction damper and An object of the present invention is to provide a three-dimensional vibration damping device using a horizontal holding mechanism.
  • the friction damper assembly comprises: a vertical friction damper composed of an inner cylinder support plate, a friction damper, an outer cylinder support plate and a solid lubricant support plate; a horizontal friction damper support plate; a horizontal friction damper composed of a sliding plate; and a center bolt And to provide a three-dimensional vibration damping device using a friction damper and a horizontal holding mechanism comprising a sliding washer.
  • Another object of the present invention is that the inner cylinder support plate has a predetermined width and is formed flat to be coupled to the upper plate of the horizontal holder, and the upper end of the inner cylinder is fitted inside to correspond to the outer cylinder seating hole of the outer cylinder support plate.
  • An object of the present invention is to provide a three-dimensional vibration damping device using a friction damper in which a plurality of inner cylinder coupling holes are formed and a horizontal holding mechanism.
  • Another object of the present invention is that the friction damper is embedded vertically on the outer periphery between the inner cylinder support plate and the outer cylinder support plate to support the load of the device, and vibration damping function through up and down motion by earthquake motion.
  • the friction damper is a three-dimensional vibration damping device using a friction damper and a horizontal retainer comprising an inner cylinder vertically coupled to the inner cylinder support plate, and an outer cylinder vertically coupled to the outer cylinder support plate. is to provide
  • Another object of the present invention is that the inner cylinder and the outer cylinder are cylindrical, and a slit of a predetermined width is formed so that the upper and lower portions in the longitudinal direction pass through, and the magnitude of the friction force is adjusted by adjusting the elastic force in the radial direction generated by the forced fit.
  • An object of the present invention is to provide a three-dimensional vibration damping device using a friction damper and a horizontal holding mechanism configured to be able to
  • the inner cylinder by forming friction surfaces A to D, in which the diameter of the outer surface is enlarged stepwise, is embedded in the outer cylinder, and some surfaces of the end are exposed according to the relative positions of the inner cylinder and the outer cylinder It is to provide a three-dimensional vibration damping device using a friction damper and a horizontal holding mechanism configured to adjust the magnitude of frictional force by being press-fitted on the remaining surface.
  • Another object of the present invention is that the friction damper is fastened and fixed to the side surfaces of the inner cylinder support plate and the outer cylinder support plate with fastening bolts, and is usually configured to support the vertical load of the device, and when an earthquake occurs,
  • the friction surface of the outer cylinder and the step-by-step friction surfaces A to D of the inner cylinder are press-fitted for vibration, and both dampers with slits are formed by using the friction force generated between the two cylinders when the inner cylinder and the outer cylinder slide against each other during up-down vibration.
  • An object of the present invention is to provide a three-dimensional vibration damping device using a friction damper and a horizontal holding mechanism configured to damp vibration by dissipating seismic energy.
  • the outer cylinder support plate is positioned to have a predetermined interval under the inner cylinder support plate to correspond to the inner cylinder support plate for coupling the upper end of the inner cylinder, a friction damper formed to fasten the lower end of the outer cylinder and
  • An object of the present invention is to provide a three-dimensional vibration damping device using a horizontal holding mechanism.
  • the solid lubricant support plate is located under the outer cylinder support plate and is formed to fix and support the solid lubricant body coupled to the lower end of the outer cylinder in three dimensions using a friction damper and a leveling tool To provide a vibration damping device.
  • Another object of the present invention is to provide a three-dimensional vibration damping device using a friction damper and a horizontal retainer, in which the horizontal friction damper support plate has a predetermined width to be coupled to the bottom surface and is formed flat.
  • the sliding plate has a disk shape and is located below the solid lubricant support plate and is configured to support the vertical friction damper configured to slide in the front/rear, left/right directions, and the center
  • the vertical friction damper configured to slide in the front/rear, left/right directions, and the center
  • the sliding plate has a sloped surface formed with a constant gradient outward from the outer periphery of the central hole on the upper surface, and a sliding surface with a constant width along the outer periphery of the central hole formed in the center on the lower surface.
  • An object of the present invention is to provide a three-dimensional vibration damping device using a friction damper and a horizontal holding mechanism configured to be formed.
  • Another object of the present invention is that, on the lower surface of the sliding plate, a step is formed along the outer periphery, and a plurality of fastening holes coupled to the horizontal friction damper support plate are formed on the stepped outer periphery, and the fastening hole has the circular shape.
  • the edge plate is coupled to form a sliding surface of a certain width from the central hole to the inner wall of the circular edge plate coupled to the step.
  • An object of the present invention is to provide a three-dimensional vibration damping device using a friction damper and a horizontal holding mechanism configured to move.
  • Another object of the present invention is to provide a three-dimensional vibration damping device using the vertical friction damper and horizontal friction damper, a friction damper configured to be coupled with a center bolt vertically fastened from the upper portion, a sliding washer and a nut, and a horizontal retainer is doing
  • Another object of the present invention is to provide a three-dimensional vibration damping device using a friction damper and a horizontal retainer, wherein the center bolt penetrates downward through the center of the inner cylinder support plate and is fastened to the center of the horizontal friction damper support plate.
  • the feature of the three-dimensional vibration damping device using the friction damper and the horizontal holding mechanism according to the present invention for achieving the above object is that it is located between the bottom plate of the device and the floor to be installed, and attenuates the earthquake vibration transmitted from the floor surface. It is configured to safely protect the device placed on it.
  • Another feature of the three-dimensional vibration damping device using the friction damper and the leveling device according to the present invention is configured to include a leveling device and a friction damper assembly.
  • the leveling device is located at the lower side of the device and has a predetermined thickness and width so as to be coupled to the friction damper assembly as a hexahedron. It is composed of a flat upper plate and a lower plate having the same standard as the upper plate, the upper surface is coupled to the upper plate and the lower surface is coupled to the bottom surface.
  • the leveling mechanism has an inner surface so that it can move up and down by earthquake motion while maintaining the horizontal of the upper and lower plates. It is configured to further include an X-shaped connecting link.
  • the friction damper assembly includes a vertical friction damper composed of an inner cylinder support plate, a friction damper, an outer cylinder support plate and a solid lubricant support plate, and horizontal It consists of a friction damper support plate, a horizontal friction damper consisting of a sliding plate, and a center bolt and a sliding washer.
  • the inner cylinder support plate has a predetermined width to be coupled to the upper plate of the horizontal holder and is formed flat, and the outer cylinder support plate A plurality of inner cylinder coupling holes into which the upper end of the inner cylinder is fitted are formed inside so as to correspond to the outer cylinder seating hole vertically.
  • the friction damper is vertically embedded in a plurality of pieces on the outer periphery between the inner cylinder support plate and the outer cylinder support plate to reduce the load of the device. It supports and is configured to have a vibration damping function through up and down motion by earthquake motion.
  • the friction damper includes an inner cylinder vertically coupled to the inner cylinder support plate, and an outer cylinder vertically coupled to the outer cylinder support plate. do.
  • the inner and outer cylinders are cylindrical, and slits of a predetermined width are formed so that the upper and lower sides in the longitudinal direction pass through, It is configured to adjust the magnitude of the frictional force by adjusting the elastic force in the radial direction generated by the
  • the inner cylinder forms friction surfaces A to D in which the diameter of the outer surface is enlarged step by step and is embedded in the outer cylinder, According to the relative position of the inner cylinder and the outer cylinder, some surfaces of the end are exposed and the remaining surfaces are press-fitted to adjust the magnitude of the frictional force.
  • Another feature of the three-dimensional vibration damping device using the friction damper and the horizontal holding mechanism according to the present invention is that the friction damper is fastened to the side of the inner cylinder support plate and the outer cylinder support plate with fastening bolts, respectively, and is usually fixed under the vertical load of the device.
  • the friction surface of the outer cylinder and the step-by-step friction surfaces A to D of the inner cylinder are forced to fit the vibration in the up and down directions when an earthquake occurs, and both dampers with slits pass through the inner passage during vibration in the up and down directions. It is configured to damp vibration by dissipating seismic energy by using the friction force generated between the two cylinders when the outer cylinders slide on each other.
  • the outer cylinder support plate is positioned at a constant interval below the inner cylinder support plate to combine the upper end of the inner cylinder with the inner cylinder support plate. Corresponds to and is formed to fasten the lower end of the outer cylinder.
  • the solid lubricant support plate is located below the outer cylinder support plate and fixes the solid lubricant body coupled to the lower end of the outer cylinder. and formed to support it.
  • the horizontal friction damper support plate has a predetermined width so as to be coupled to the bottom surface and is formed flat.
  • the sliding plate has a disk shape and is located below the solid lubricant support plate to move forward, backward, left and right directions. It is configured to support the vertical friction damper configured to slide, and a central hole is formed in the center so that the central bolt fastened to the inner cylinder support plate can penetrate downward.
  • the sliding plate has a sloped surface on the upper surface of which a constant gradient is formed from the outer periphery of the central hole to the outside, and on the lower surface A sliding surface is formed with a constant width along the outer periphery of the central hole formed in the center.
  • Another feature of the three-dimensional vibration damping device using the friction damper and the leveling mechanism according to the present invention is that, on the lower surface of the sliding plate, a step is formed along the outer periphery, and the horizontal friction damper support plate is coupled to the stepped outer periphery.
  • a plurality of fastening holes are formed, and the circular rim plate is coupled to the fastening hole to form a sliding surface of a certain width from the central hole to the inner wall of the circular rim plate coupled to the step, and to the central bolt.
  • the fitted sliding washer is configured to slide forward and backward, left and right horizontally.
  • Another feature of the three-dimensional vibration damping device using the friction damper and the horizontal holding mechanism according to the present invention is configured to be coupled with the vertical friction damper and the horizontal friction damper, a center bolt vertically fastened from the upper part, a sliding washer and a nut. .
  • Another feature of the three-dimensional vibration damping device using the friction damper and the horizontal retainer according to the present invention is that the center bolt penetrates downward through the center of the inner cylinder support plate and is fastened to the center of the horizontal friction damper support plate.
  • the three-dimensional vibration damping device using the friction damper and the horizontal holding member according to the present invention is configured by coupling the friction damper assembly to the horizontal holding member while excluding the use of a spring element. Therefore, by using the kinematic principle of the leveling mechanism, it suppresses the phenomenon of the device leaning forward/backward, left/right, and maintains the structural soundness and functionality of the device by always maintaining the level, excluding the use of spring elements and By using only the damping effect, it has the advantage of damping vibration without generating resonance.
  • the three-dimensional vibration damping device using the friction damper and the horizontal holding mechanism comprises a plurality of friction dampers that absorb the constant load and vibration energy of the device, and the friction dampers coupled to the inner cylinder and the outer cylinder are each slit. It is a simple configuration that is formed and combined with an interference fit. Therefore, the force-fitted vertical friction damper has the advantage of excellent damping efficiency as the frictional force generated while the inner and outer cylinders move relatively during vibration dissipates the vibration energy in the up and down directions.
  • the horizontal friction damper installed on the lower side of the device and configured to damp the horizontal vibration by using the frictional force generated when the device slides forward, backward, left and right on the sliding plate by vibration, together with the use of a solid lubricant It has the advantage of having a function of restoring the device to its original position after vibration by forming a sloped surface on the sliding plate.
  • FIG. 1 is a schematic overall perspective view of a device in which a three-dimensional vibration damping device using a friction damper and a horizontal holding mechanism according to the present invention is combined.
  • Figure 2 is a perspective view showing the horizontal holding mechanism of the three-dimensional vibration damping device of the device according to the present invention.
  • FIG. 3 is a schematic overall perspective view showing the friction damper assembly 20 according to the present invention.
  • FIG 4 is a perspective view schematically showing the inner cylinder support plate 210 of the vibration damping device according to the present invention.
  • FIG 5 and 6 are perspective views schematically showing the friction damper 22 of the vibration damping device according to the present invention.
  • FIG. 7 is a perspective view schematically showing the outer cylinder support plate 230 of the vibration damping device according to the present invention.
  • FIG. 8 is a perspective view schematically showing the solid lubricant support plate 240 of the vibration damping device according to the present invention.
  • FIG. 9 is a perspective view schematically showing the horizontal friction damper support plate 260 of the vibration damping device according to the present invention.
  • FIG. 10 is a perspective view schematically showing the sliding plate 270 of the vibration damping device according to the present invention.
  • FIG. 11 is a perspective view schematically showing the center bolt and the sliding washer 29 of the vibration damping device according to the present invention.
  • FIG. 12 is a photograph schematically showing the maximum horizontal and vertical displacement of the vibration damping device according to the present invention.
  • a number of devices (mechanical devices, electrical/instrument cabinets) of various structures are installed in nuclear power plants, and important parts that perform safe operation and stop functions of the power plant are attached and built into them. They must maintain structural soundness and functionality in the event of an earthquake, as well as perform the unique functions assigned to each without malfunction.
  • the conventional device is fixed to the lower part with an anchor bolt, seismic vibration is transmitted without attenuation, and there is a problem in damage to parts and the soundness of the device itself. It has a problem in that it adversely affects important devices inside the device according to the resonance phenomenon.
  • the present invention is a method of damping the device from seismic energy by installing a three-dimensional vibration damping device using a horizontal holding device and a friction damper at the bottom of the device, and conduction moment through selection, design and analysis of materials that absorb and damp vibration energy By increasing the resistance of the device to vibration and damping the seismic energy, the seismic response was reduced and the seismic performance of important equipment was improved.
  • an object of the present invention is to provide a three-dimensional vibration damping device that performs safe operation and stop functions by protecting equipment installed in a nuclear power plant from vibrations and shocks caused by earthquakes or tectonic fluctuations.
  • FIG. 1 is a schematic overall perspective view of a device in which a three-dimensional vibration damping device using a friction damper and a horizontal holding device according to the present invention is combined
  • FIG. 2 is a horizontal holding device of the three-dimensional vibration damping device of the device according to the present invention
  • 3 is a schematic overall perspective view showing the friction damper assembly 20 according to the present invention
  • FIG. 4 is a perspective view schematically showing the inner cylinder support plate 210 of the vibration damping device according to the present invention
  • FIG. 5 and FIG. 6 is a perspective view schematically showing the friction damper 22 of the vibration damping device according to the present invention
  • FIG. 7 is a perspective view schematically showing the outer cylinder support plate 230 of the vibration damping device according to the present invention
  • FIG. 8 is A perspective view schematically showing the solid lubricant support plate 240 of the vibration damping device according to the present invention
  • FIG. 9 is a perspective view schematically showing the horizontal friction damper support plate 260 of the vibration damping device according to the present invention
  • FIG. 10 is A perspective view schematically showing the sliding plate 270 of the vibration damping device according to the present invention
  • FIG. 11 is a perspective view schematically showing the center bolt and sliding washer 29 of the vibration damping device according to the present invention
  • FIG. It is a photograph schematically showing the maximum horizontal and vertical displacement of the vibration damping device according to the present invention.
  • the three-dimensional vibration damping device using the friction damper and the horizontal holding mechanism according to the present invention is located between the bottom plate of the device and the floor to be installed, and attenuates the earthquake vibration transmitted from the floor. It is configured to safely protect the device placed on it.
  • a three-dimensional vibration damping device using a friction damper and a leveling device according to the present invention is configured to include a leveling device (10) and a friction damper assembly (20).
  • the horizontal holding member 10 of the three-dimensional vibration damping device using the friction damper and the horizontal holding member according to the present invention is located at the lower side of the device and has a predetermined thickness and width so as to be coupled with the friction damper assembly 20. It is composed of a flat upper plate 11 as a hexahedron, and a lower plate 12 having the same standard as the upper plate 11, the upper surface is coupled to the upper plate 11, and the lower surface is coupled to the bottom surface.
  • the horizontal retaining tool 10 of the present invention has an X-shaped connection link 13 on the inner surface so that the upper plate 11 and the lower plate 12 can be moved up and down by seismic motion while maintaining the horizontal level. Consists of further including.
  • the leveling tool 10 of the present invention moves up and down together with the friction damper assembly 20 (see FIG. 2 ), and the outer size is the same as the base plate standard of the device, so that it is easy to install on site. (See FIG. 1), by applying the kinematic principle of always maintaining the horizontal, it is possible to suppress the phenomenon of rocking the upper part of the device forward and backward, left and right.
  • the friction damper assembly 20 of the three-dimensional vibration damping device using the friction damper and the horizontal holding mechanism includes an inner cylinder support plate 210, a friction damper 220, and an outer cylinder support plate ( 230) and the solid lubricant support plate 240, the vertical friction damper 21, the horizontal friction damper support plate 260, and the sliding plate 270, the horizontal friction damper 26, the center bolt and the sliding washer 29 ) is included.
  • the vertical friction damper 21 of the friction damper assembly 20 of the present invention is configured to support the vertical load of the device and to damp up and down vibrations of earthquake motion by using frictional force.
  • the vertical friction damper 21 of the friction damper assembly 20 will be described.
  • the inner cylinder support plate 210 is a generally square plate shape having a certain thickness, and each corner portion has a horizontal retainer fastening hole 212 to be coupled to the upper plate 11 of the horizontal retainer 10 . It is formed to be circumscribed, and the center bolt through hole 214 is formed so that the center bolt 291 can penetrate downward, and the inner cylinder 221 can be fixedly fastened to the outer periphery of the inner cylinder coupling hole 211 . A plurality of inner cylinder fastening holes 215 are formed.
  • the friction damper 220 according to the present invention is embedded vertically in a plurality of the outer periphery between the inner cylinder support plate 210 and the outer cylinder support plate 230 to reduce the load of the device. It supports and is configured to have a vibration damping function through up and down motion by earthquake motion.
  • the friction damper 220 includes an inner cylinder 221 vertically coupled to the inner cylinder support plate 210 , and an outer cylinder 222 vertically coupled to the outer cylinder support plate 230 .
  • the inner cylinder 221 and the outer cylinder 222 according to the present invention are cylindrical, and slits (221.1/222.1) of a predetermined width are formed so that the upper and lower portions in the longitudinal direction pass through, and elastic force in the radial direction generated by force fitting. It is configured to adjust the magnitude of the friction force by adjusting the
  • an O-ring 223 is coupled to a portion of the exposed surface of the inner cylinder 221 of the present invention, and a solid lubricant 241 is coupled to an end of the outer cylinder 222 .
  • the inner cylinder 221 forms a friction surface A ⁇ D (221.2 A ⁇ D ) in which the diameter of the outer surface is enlarged stepwise and is embedded in the outer cylinder 222, and the inner cylinder 221 and According to the relative position of the outer cylinder 222, some surfaces of the ends are exposed and the remaining surfaces are press-fitted to adjust the size of the frictional force.
  • the friction damper 220 of the present invention is fastened and fixed to the side surfaces of the inner cylinder support plate 210 and the outer cylinder support plate 230 with fastening bolts (not shown), and is usually configured to support the vertical load of the device.
  • the friction surfaces 222.2 of the outer cylinder 222 and the friction surfaces A to D of the inner cylinder 221 are forced to fit the vibration in the up and down directions, and the slits 221.1/222.1 are formed.
  • the dampers 221/222 are configured to attenuate vibration by dissipating seismic energy using frictional force generated between the two cylinders when the inner cylinder and the outer cylinder slide with each other during up-down vibration.
  • the surface (friction surface A portion) of the inner cylinder 221 on which the friction surfaces A to D, which are expanded stepwise, are formed are formed on the inner upper end of the outer cylinder 222 while moving in the up and down directions when an earthquake occurs. It is caught on the step of the friction surface 222.2 and dissipates frictional heat (see Fig. 6).
  • the outer cylinder support plate 230 of the present invention is positioned to have a predetermined interval under the inner cylinder support plate 210 and combines the upper end of the inner cylinder 221 with an inner cylinder support plate 210 . ) and is formed to fasten the lower end of the outer cylinder 222 .
  • the outer cylinder support plate 230 has a plurality of outer cylinder coupling holes 231 into which the lower end of the outer cylinder 222 is fitted inside so as to vertically correspond to the inner cylinder 221 of the inner cylinder support plate 210, and the center A central hole 232 is formed so that the center bolt 291 fastened to the inner cylinder support plate 210 can penetrate downward, and a horizontal retaining tool fastening hole 234 is fastened to the lower plate 12 of the horizontal retaining tool 10 . ) is formed.
  • the solid lubricant support plate 240 of the present invention includes a solid lubricant 241 positioned under the outer cylinder support plate 230 and coupled to the lower end of the outer cylinder 222 . It is formed to be fixed and supported.
  • a very low Teflon material is used.
  • the horizontal friction damper 26 of the friction damper assembly 20 of the present invention is configured to damp horizontal vibrations of earthquake motion.
  • the horizontal friction damper support plate 260 has a predetermined width so as to be coupled to the bottom surface. and is formed flat.
  • the horizontal friction damper support plate 260 forms a closed frame 261 and has a plurality of fastening holes 262 circumscribed so as to be coupled to the bottom surface along the circumference, and on the frame 261 A plurality of plate fastening holes 263 for fastening the circular edge plate 264 and the sliding plate 270 are formed so as to penetrate vertically.
  • the sliding plate 270 of the present invention has a disk shape and is positioned below the solid lubricant support plate 240 to slide in front, rear, left and right directions. It is configured to support the vertical friction damper 21, and a central hole 273 is formed in the center so that the central bolt 291 fastened to the inner cylinder support plate 210 can penetrate downward.
  • the sliding plate 270 of the present invention has a sloped surface 272 formed with a constant gradient outward from the outer periphery of the central hole 273 on the upper surface, and the central hole 273 formed in the center on the lower surface. ) is configured to form a sliding surface 271 with a constant width along the outer periphery.
  • a solid lubricant 241 coupled to the lower end of the outer cylinder 222 of the friction damper 220 is placed on the sloped surface 272 and slides forward and backward, left and right by earthquake motion, and after the movement is always configured to be restored to the center.
  • a step is formed on the lower surface of the sliding plate 270 along the outer periphery, and a plurality of fastening holes 274 coupled to the horizontal friction damper support plate 260 are formed on the stepped outer periphery, and the fastening hole At 274, the circular edge plate 264 is coupled to form a sliding surface 271 of a certain width from the central hole 273 to the inner wall of the circular edge plate 264 coupled to the step, and the The sliding washer 292 fitted to the center bolt 291 is configured to slide forward and backward, left and right horizontally.
  • the central bolt 291 of the present invention is fastened to the central portion of the horizontal friction damper support plate 260 by penetrating downward through the central portion of the inner cylinder support plate 210 .
  • the nut 293 of the present invention is fastened to the center bolt 291 to prevent the sliding washer 292 from being separated.
  • the nut 293 is fastened to the center bolt 291 so that the 'maximum displacement (H) in the vertical direction' of the friction damper assembly 20 of the present invention is limited, and the bolt 271 and the nut 273 are The 'maximum displacement (H) in the vertical direction' by the friction damper 220 is configured so that the outer cylinder 222 and the inner cylinder 232 of the friction damper 220 do not deviate from each other's friction surfaces.
  • the center bolt 291, the sliding washer 292, and the nut 293 support each of the above-described configurations so that the three-dimensional vibration damping device using the friction damper and the horizontal holding mechanism according to the present invention has a complete form. is composed
  • the three-dimensional vibration damping device using the friction damper and the horizontal holding mechanism according to the present invention having such a configuration is installed and operated as follows.
  • the horizontal retainer fastening hole 212 of the inner cylinder support plate, the horizontal retaining tool fastening hole 234 of the outer cylinder support plate, the horizontal retaining tool fastening hole 244 of the solid lubricant support plate, and the horizontal friction damper fastening hole of the support plate 262 lies on the vertical line.
  • the solid lubricant 241 of the vertical friction damper assembly is seated on the inclined surface 272 of the sliding plate of the horizontal friction damper assembly.
  • the friction damper assembly 20 is completed by inserting a sliding washer into the bolt passing through the bottom (sliding surface) of the lowermost sliding plate and tightening the nut.
  • the maximum upward displacement (H) in the vertical direction is determined by the fastened length of the bolt and the nut, and also in the forward, left and right directions by the circular edge plate embedded between the horizontal friction damper support plate and the sliding plate.
  • the maximum displacement L in the horizontal direction of the same width is determined.
  • the three-dimensional vibration damping device according to the present invention is assembled and configured according to the above procedure.
  • the horizontal holder and the device are vertically fastened.
  • the 3D vibration damping device is temporarily fastened to the anchor embedding plate, and then the device is fixed and fastened using a worker.
  • the removal work for the maintenance of the 3D vibration damping device is to release the bolts fastened to the horizontal holding device, and to move the device upward and separate and maintain it.
  • the three-dimensional vibration damping device using the friction damper and the horizontal holding mechanism according to the present invention dissipates the vibration energy within the elastic region of the friction damper 220 that is coupled with the interference fit of the three-dimensional vibration damping device 10 when an earthquake occurs. .
  • the 'maximum displacement (H) in the vertical direction' is the stroke of the connecting link 13 of the horizontal holding tool 10 and the force fitting state of the inner cylinder 221 and the outer cylinder 222 of the friction damper 220 It is configured to be within the range of motion of
  • the 'maximum displacement (L) in the horizontal direction' of the device is the inner wall and It is the gap to the edge of the sliding washer (292) coupled to the center bolt (291).
  • the three-dimensional vibration damping device of the present invention is configured to maintain the level by combining the friction damper assembly 20 with the leveling tool 10 .
  • the three-dimensional vibration damping device using the friction damper and the horizontal holding mechanism according to the present invention can achieve 'vertical displacement' and 'horizontal displacement' in response to non-directional (x, y, z) seismic force.
  • the gap gap
  • vibration energy is dissipated by the vertical tensile frictional force and radial elastic force of the friction damper 220, which is an interference fit combination of the inner cylinder 221 and the outer cylinder 222 .
  • vibration energy is dissipated by the sliding motion of the inclined surface 272 of the sliding plate 270 and the solid lubricant 241 .
  • the three-dimensional vibration damping device using the friction damper and the horizontal holding mechanism according to the present invention having such a configuration has the following characteristics.
  • the three-dimensional vibration damping device using the friction damper and the horizontal holding mechanism according to the present invention is constructed by excluding the use of a spring element and coupling the friction damper assembly to the horizontal holding member.
  • the leveling mechanism suppresses the phenomenon of the device leaning forward/backward, left/right, and maintains the structural soundness and functionality of the device by always maintaining the level, excluding the use of spring elements and By using only the damping effect, it has the advantage of damping vibration without generating resonance.
  • the three-dimensional vibration damping device using the friction damper and the horizontal holding mechanism comprises a plurality of friction dampers that absorb the constant load and vibration energy of the device, and the friction dampers coupled to the inner cylinder and the outer cylinder are each slit. It is a simple configuration that is formed and combined with an interference fit.
  • the force-fitted vertical friction damper has the advantage of excellent damping efficiency as the frictional force generated while the inner and outer cylinders move relatively during vibration dissipates the vibration energy in the up and down directions.
  • the horizontal friction damper installed on the lower side of the device and configured to damp the horizontal vibration by using the frictional force generated when the device slides forward, backward, left and right on the sliding plate by vibration, together with the use of a solid lubricant It has the advantage of having a function of restoring the device to its original position after vibration by forming a sloped surface on the sliding plate.

Abstract

La présente invention concerne un appareil d'amortissement de vibrations en trois dimensions, lequel appareil est situé entre une plaque inférieure d'équipement et une surface de plancher pour l'installation, et lequel protège de façon sûre l'équipement disposé sur celui-ci par l'amortissement de mouvements de sol vibratoires délivrés à partir de la surface de plancher. L'appareil d'amortissement de vibrations en trois dimensions utilisant un amortisseur à friction et une unité de maintien d'horizontalité comprend : l'unité de maintien d'horizontalité ayant une structure de cadre hexaédrique avec une certaine épaisseur et une certaine surface de façon à être couplée au côté inférieur de l'équipement, et comprenant une plaque supérieure plate et une plaque inférieure ayant les mêmes dimensions que la plaque supérieure, la plaque inférieure ayant une surface supérieure couplée à la plaque supérieure et une surface inférieure couplée à la surface de plancher ; et des ensembles d'amortisseur à friction incorporés verticalement dans les plaques supérieure et inférieure de l'unité de maintien d'horizontalité et des parties de coin de la surface de plancher de façon à amortir les vibrations de l'équipement. Par conséquent, par l'amortissement des vibrations après la séparation des vibrations et des impacts provoqués par un tremblement de terre ou un diastrophisme dans les directions horizontale et verticale, l'appareil d'amortissement de vibrations en trois dimensions peut protéger l'équipement installé sur celui-ci et assurer une fonction d'entraînement et une fonction d'arrêt sûres.
PCT/KR2020/009497 2020-05-13 2020-07-18 Appareil d'amortissement de vibrations en trois dimensions utilisant un amortisseur à friction et une unité de maintien d'horizontalité WO2021230422A1 (fr)

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JP5992822B2 (ja) * 2012-12-25 2016-09-14 東洋ガラス物流株式会社 移動体
JP6253052B2 (ja) * 2013-11-14 2017-12-27 学校法人君が淵学園 振動減衰装置
KR101836164B1 (ko) * 2017-11-22 2018-04-19 (주)파워엔텍 수직 진동 저감 성능을 갖춘 3차원 면진장치
WO2020008422A1 (fr) * 2018-07-06 2020-01-09 Aut Ventures Limited Connecteur structurel
KR102063546B1 (ko) * 2019-10-10 2020-01-09 주식회사 스마텍이앤씨 원전기기의 3차원 면진 스프링 완충장치

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KR101081571B1 (ko) 2011-04-20 2011-11-08 진영이티에스 (주) 내진스프링을 이용한 수배전반용 내진장치
KR101962740B1 (ko) 2018-12-01 2019-03-27 주식회사 스마텍이앤씨 면진장치를 구비한 원전용 전기 캐비닛의 고정구조

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JP5992822B2 (ja) * 2012-12-25 2016-09-14 東洋ガラス物流株式会社 移動体
JP6253052B2 (ja) * 2013-11-14 2017-12-27 学校法人君が淵学園 振動減衰装置
KR101836164B1 (ko) * 2017-11-22 2018-04-19 (주)파워엔텍 수직 진동 저감 성능을 갖춘 3차원 면진장치
WO2020008422A1 (fr) * 2018-07-06 2020-01-09 Aut Ventures Limited Connecteur structurel
KR102063546B1 (ko) * 2019-10-10 2020-01-09 주식회사 스마텍이앤씨 원전기기의 3차원 면진 스프링 완충장치

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