KR102152155B1 - Dynamic absorber - Google Patents

Abstract

The present invention relates to a dynamic absorbing device. According to an embodiment of the present invention, the dynamic absorbing device comprises: a Z-axis absorbing unit fixed to a structure, and vibrated in a Z-axial direction; a Y-axis absorbing unit disposed above the Z-axial absorbing unit, and vibrated in a Y-axial direction; and an X-axial absorbing unit above the Y-axial absorbing unit, and vibrated in an X-axial direction. The Z-axial absorbing unit includes: a Z-axial base; a plurality of fixing parts coupled to the structure, and coupled to the Z-axial base to allow the Z-axial base to be moved in the Z-axial direction; a plurality of Z-axial springs coupled to the fixing parts, and providing a restoring force when the Z-axial base is moved in the fixing parts; and a Z-axial mass disposed above the Z-axial base. According to the present invention, vibration can be attenuated by synchronizing with the structure in two horizontal axes and vertical directions with respect to the vibration applied from the inside or outside, thereby improving the absorbing efficiency performance for the vibration.

Description

Dynamic absorption device {DYNAMIC ABSORBER}

The present invention relates to a dynamic absorption device, and more particularly, to a dynamic absorption device for preventing the structure from being destroyed by vibrating by vibration generated inside or outside.

In various structures, a vibration absorbing device capable of absorbing vibration is used to prevent the structure from vibrating and being destroyed by vibration generated inside or outside. Among these vibration absorbing devices, the dynamic absorbing device analyzes the shape and response characteristics of the structure targeting the structure, selects a location that can effectively absorb the vibration, and provides a mass and spring that can be synchronized with the natural frequency of the structure. And attenuator coefficients.

The dynamic absorption device is a device for absorbing the shock to the vibration load and reducing the response of the target structure. Such a dynamic absorption device is effective in controlling vibrations such as narrow wind loads, sidewalk loads, and traffic loads in an excitation frequency band, and is an economical control device for earthquake loads. In addition, the dynamic absorption device can be used to reduce vibrations occurring inside the structure for various reasons. In general, the mass of the mass used in the dynamic absorption device is about 1% of the mass of the target structure, and the frequency is close to the natural frequency of the target structure.

Although the structure may have many natural frequencies, vibration applied to the structure can be minimized by reducing the response to the natural frequency having a high mass participation rate among the response to the vibration of the structure.

Korean Patent Application Publication No. 10-2011-0108913 Korean Patent Registration No. 10-1176374

The problem to be solved by the present invention is to provide a dynamic absorption device capable of minimizing internal or external vibration applied to a structure.

A dynamic absorption device according to an embodiment of the present invention includes: a Z-axis suction unit fixed to a structure and vibrating in a Z-axis direction; A Y-axis suction unit disposed above the Z-axis suction unit and vibrating in the Y-axis direction; And an X-axis suction unit disposed above the Y-axis suction unit and vibrating in an X-axis direction, wherein the Z-axis suction unit includes a Z-axis base; A plurality of fixing parts coupled to the structure and coupled to the Z-axis base so that the Z-axis base moves in the Z-axis direction; A plurality of Z-axis springs coupled to the plurality of fixing parts and providing a restoring force when the Z-axis base is moved in the plurality of fixing parts; And a Z-axis mass disposed on the Z-axis base.

The Z-axis suction unit may include a Z-axis elastic part disposed under the Z-axis base and providing a restoring force to the Z-axis base; And a Z-axis support part coupled to the Z-axis base and supporting the Z-axis elastic part.

A Y-axis guide rail is formed on the Z-axis base to guide the Y-axis suction unit to move, and the Y-axis suction unit includes the Y-axis guide rail so that the Y-axis suction unit slides in the Y-axis direction. The Y-axis sliding guide coupled to the Y-axis base disposed on the lower surface; A plurality of Y-axis springs providing restoring force when the Y-axis base moves in the Y-axis direction; And a Y-axis mass disposed above the Y-axis base.

The Y-axis suction unit further includes one or more Y-axis dampers for attenuating the movement of the Y-axis base, and one or more Y-axis dampers have one end in the Y-axis direction coupled to the Z-axis base, and the Y-axis direction The other end of may be coupled to the Y-axis base.

The Y-axis suction unit may further include a Y-axis stopper stopping the movement of the Y-axis base.

The Z-axis mass includes first and second Z-axis masses spaced apart from each other in the Y-axis direction on the top of the Z-axis base, and the Y-axis suction unit is moved between the first and second Z-axis masses. It may be disposed on the Z-axis base.

The plurality of Y-axis springs include first to fourth Y-axis springs, and one end of the first and second Y-axis springs is coupled to the Z-axis base in the Y-axis direction, and the other end in the Y-axis direction is the The third and fourth Y-axis springs are coupled to the Z-axis base at the other end in the Y-axis direction, and one end in the Y-axis direction to the Y-axis base, and the first and second Y-axis springs 3 Y-axis springs are disposed in parallel in the longitudinal direction of the first and third Y-axis springs, and the second and fourth Y-axis springs are disposed in parallel in the longitudinal direction of the second and fourth Y-axis springs. I can.

An X-axis guide rail for guiding the X-axis suction unit to move is formed on the Y-axis base, and the X-axis suction unit includes the X-axis guide rail so that the X-axis suction unit slides in the X-axis direction. The X-axis sliding guide coupled to the X-axis base disposed on the lower surface; A plurality of X-axis springs providing restoring force when the X-axis base moves in the X-axis direction; And an X-axis mass disposed on the X-axis base.

The X-axis suction unit further includes one or more X-axis dampers for attenuating the movement of the X-axis base, and one or more X-axis dampers have one end in the X-axis direction coupled to the Y-axis base, and the X-axis direction The other end of may be coupled to the X-axis base.

The X-axis suction unit may further include an X-axis stopper that stops the movement of the X-axis base.

The plurality of X-axis springs include first to fourth X-axis springs, and one end of the first and second X-axis springs is coupled to the Y-axis base in the X-axis direction, and the other end in the X-axis direction is the The third and fourth Y-axis springs are coupled to the Y-axis base at the other end in the X-axis direction, and one end in the X-axis direction is coupled to the X-axis base, and the first and second Y-axis springs 3 X-axis springs are disposed side by side in the longitudinal direction of the first and third X-axis springs, and the second and fourth X-axis springs are disposed side by side in the longitudinal direction of the second and fourth X-axis springs. I can.

The Y-axis mass includes first and second Y-axis masses spaced apart from each other in the Y-axis direction on the Y-axis base, and the X-axis suction unit is moved between the first and second Y-axis masses. It may be disposed on the Y-axis base.

According to the present invention, vibrations can be attenuated by synchronizing with the structure in two horizontal and vertical directions for vibrations applied from inside or outside, thereby improving the absorption efficiency performance for vibration.

In addition, when reducing vibration due to biaxial vibration in the horizontal direction and vibration in the vertical direction, vibration can be reduced with only one dynamic absorption device, so that two or three absorption devices may not be installed.

Moreover, since the mass can be independently corrected for biaxial vibration in the horizontal direction and vibration in the vertical direction, there is an effect of responding to the natural frequency of the structure in each direction.

1 is a perspective view showing a dynamic absorption device according to an embodiment of the present invention.
2 is a perspective view showing another direction of the dynamic absorption device according to an embodiment of the present invention.
3 is an exploded perspective view showing a dynamic absorption device according to an embodiment of the present invention.
4 is an exploded perspective view showing another direction of the dynamic absorption device according to an embodiment of the present invention.
5 is a view for explaining a state in which the dynamic absorption device according to an embodiment of the present invention operates in the Z-axis direction.
6 is a view for explaining a state in which the dynamic absorption device according to an embodiment of the present invention operates in the Z-axis direction.
7 is a view for explaining a state in which the dynamic absorption device according to an embodiment of the present invention operates in the Y-axis direction.
8 is a view for explaining a state in which the dynamic absorption device according to an embodiment of the present invention operates in the Y-axis direction.
9 is a view for explaining a state in which the dynamic absorption device according to an embodiment of the present invention operates in the X-axis direction.
10 is a view for explaining a state in which the dynamic absorption device according to an embodiment of the present invention operates in the X-axis direction.

Hereinafter, a configuration and operation according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings. The following description is one of the various aspects of the invention that are claimable, and the following description may form part of the detailed description of the invention.

However, in describing the present invention, detailed descriptions of known configurations or functions may be omitted so that the present invention may be clarified.

Since the present invention can make various changes and include various embodiments, specific embodiments will be illustrated in the drawings and described in the detailed description. However, this is not intended to limit the present invention to a specific embodiment, it should be understood to include all changes, equivalents, or substitutes included in the spirit and scope of the present invention.

Terms including ordinal numbers, such as first and second, may be used to describe various elements, but the corresponding elements are not limited by these terms. These terms are only used for the purpose of distinguishing one component from another.

When a component is referred to as being'connected' or'connected' to another component, it is understood that it may be directly connected or connected to the other component, but other components may exist in the middle. Should be.

The terms used in the present invention are only used to describe specific embodiments, and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise.

A preferred embodiment of the present invention will be described in more detail with reference to the accompanying drawings.

1 to 4, the dynamic absorption device 100 according to an embodiment of the present invention may be installed in a structure to absorb and vibrate the structure. To this end, the dynamic absorption device 100 according to the present embodiment may independently vibrate in the X-axis, Y-axis, and Z-axis directions to absorb the vibration of the structure. The dynamic suction device 100 includes a Z-axis suction unit 110, a Y-axis suction unit 120, and an X-axis suction unit 130.

The Z-axis suction unit 110 includes a Z-axis base 111, first and second Y-axis guides, first to fourth fixing parts 113a to 113d, and first to fourth Z-axis springs 114a to 114d. ), a Z-axis support portion 115, a Z-axis elastic portion 117, and first and second Z-axis masses 119a and 119b.

The Z-axis base 111 supports the Z-axis suction unit 110 and may have a substantially rectangular shape. In the present embodiment, the Z-axis base 111 has a rectangular rim, as shown, and a cross-shaped Z-axis support 111a for supporting the rim may be disposed therein. Therefore, as the Z-axis base 111 has the shape as described above, the Z-axis base 111 can minimize its own load and have structural rigidity.

Grooves into which the first to fourth fixing parts 113a to 113d can be inserted are formed at each corner of the Z-axis base 111 having a rectangular shape. The first to fourth fixing portions 113a to 113d have a predetermined length, and are coupled to the Z-axis base 111 so as to penetrate each corner of the Z-axis base 111 in the vertical direction. In this case, the lower ends of the first to fourth fixing parts 113a to 113d may be coupled to the structure.

In addition, the first to fourth fixing portions 113a to 113d may be disposed to protrude upward from the Z-axis base 111. Accordingly, the Z-axis base 111 may be moved in the longitudinal direction of the first to fourth fixing portions 113a to 113d. In addition, first to fourth Z-axis springs 114a to 114d may be disposed on the first to fourth fixing portions protruding upward of the Z-axis base 111, respectively.

The first to fourth Z-axis springs 114a to 114d use the same type of spring, and by applying a restoring force to the Z-axis base 111, the Z-axis base 111 is tilted when it vibrates in the Z-axis direction. Likewise, it is possible to prevent the Z-axis base 111 from tilting.

The first and second Y-axis guide rails 112a and 112b are disposed above the Z-axis base 111. The first and second Y-axis guide rails 112a and 112b are arranged to have a predetermined length in the Y-axis direction on the upper edge of the Z-axis base 111, as shown in FIG. 3, and are spaced apart from each other to face each other. Can be placed in any position.

In this embodiment, the first and second Y-axis guide rails 112a and 112b are coupled to the Y-axis base 121, and the Y-axis base 121 is the first and second Y-axis guide rails 112a and 112b. ) Can be guided to move along.

The Z-axis support 115 may be disposed in the center of the Z-axis base 111 and the upper end may be coupled to the Z-axis support 111a disposed in the center of the Z-axis base 111. At this time, the lower end of the Z-axis support 115 may be coupled to the structure.

In addition, the Z-axis elastic portion 117 may be coupled to the Z-axis support portion 115. That is, the Z-axis elastic portion 117 may be a single spring, and may be disposed between the lower portion of the Z-axis support 115 and the Z-axis base 111. Accordingly, the Z-axis elastic portion 117 may apply a restoring force to the Z-axis base 111 when the Z-axis base 111 vibrates in the Z-axis direction. In this case, the Z-axis elastic portion 117 may have a relatively greater restoring force than the first to fourth Z-axis springs 114a to 114d. That is, the spring included in the Z-axis elastic portion 117 may have a size relatively larger than the first to fourth Z-axis springs 114a to 114d.

In this embodiment, the Z-axis base 111 is in a state in which a restoring force is applied by the Z-axis elastic portion 117 disposed in the center and the first to fourth Z-axis springs 114a to 114d disposed on the corner side. It can be vibrated.

The first and second Z-axis masses 119a and 119b are disposed on the Z-axis base 111. In this case, the first and second Z-axis masses 119a and 119b may be disposed at positions where the first and second Y-axis guide rails 112a and 112b of the Z-axis base 111 are not disposed. A plurality of first and second Z-axis masses 119a and 119b may be provided, respectively, and may be coupled to an upper portion of the Z-axis base 111. The first and second Z-axis masses 119a and 119b may be spaced apart from each other and may be coupled to the edges of the Z-axis base 111, respectively.

As a plurality of first and second Z-axis masses 119a and 119b are provided, the plurality of first and second Z-axis masses 119a and 119b correspond to the natural frequency of vibration when the structure vibrates in the Z-axis direction. By adjusting the number of ), the mass applied to the Z-axis base 111 can be adjusted. In this embodiment, the first and second Z-axis masses 119a and 119b affect only the Z-axis base 111 and do not affect the Y-axis base 121 and the X-axis base 131. To this end, the first and second Z-axis masses 119a and 119b are to be disposed at a position independent of the position in which the first and second Y-axis guide rails 112a and 112b disposed on the Z-axis base 111 are disposed. I can.

The Y-axis suction unit 120 is disposed above the Z-axis suction unit 110, and may be vibrated by moving in the Y-axis direction from the upper portion of the Z-axis suction unit 110. The Y-axis suction unit 120 includes a Y-axis base 121, first and second X-axis guide rails 122a and 122b, first to fourth Y-axis springs 123a to 123d, and first and second X-axis guide rails 122a and 122b. Y-axis sliding guides 124a and 124b, first and second Y-axis dampers 125a and 125b, Y-axis stopper 127, and first and second Y-axis masses 129a and 129b.

The Y-axis base 121 may have a substantially rectangular shape, and, like the Z-axis base 111, has a rectangular border, and a cross-shaped Y-axis support 121a for supporting the border is disposed therein. I can. As the Y-axis base 121 has the above shape, the Y-axis base 121 can minimize its own load and have structural rigidity. For example, as shown in FIGS. 3 and 4, the Y-axis base 121 may have a rectangular shape in which a length in the X-axis direction is relatively longer than a length in the Y-axis direction.

In this embodiment, the Y-axis base 121 is disposed on the Z-axis base 111. In this embodiment, the Y-axis base 121 may slide and move on the Z-axis base 111. To this end, first and second Y-axis sliding guides 124a and 124b may be disposed on the lower surface of the rim of the Y-axis base 121.

The first and second Y-axis sliding guides 124a and 124b are coupled to the first and second Y-axis guide rails 112a and 112b disposed on the Z-axis base 111, and the first and second Y It may slide along the longitudinal direction of the shaft guide rails 112a and 112b. Accordingly, the Y-axis base 121 may be moved along the first and second Y-axis guide rails 112a and 112b by the first and second Y-axis sliding guides 124a and 124b.

In the present embodiment, a plurality of the first and second Y-axis sliding guides 124a and 124b are each shown as being coupled to the lower surface of the Y-axis base 121, but each one is the Y-axis base 121 as necessary. Can be combined on the bottom of At this time, when each of the first and second Y-axis sliding guides 124a and 124b are disposed on the lower surface of the Y-axis base 121, one of the first and second Y-axis sliding guides 124a and 124b It may have a relatively long length compared to the plurality of first and second Y-axis sliding guides 124a and 124b.

In addition, first and second X-axis guide rails 122a and 122b are disposed on the Y-axis base 121. The first and second X-axis guide rails 122a and 122b are disposed on the upper edge of the Y-axis base 121 to have a predetermined length in the X-axis direction, as shown in FIG. 3, and are spaced apart from each other to face each other. Can be placed in any position.

In this embodiment, the first and second X-axis guide rails 122a and 122b are coupled to the X-axis base 131, and the X-axis base 131 is the first and second X-axis guide rails 122a and 122b. ) Can be guided to move along.

The first to fourth Y-axis springs 123a to 123d are disposed below the Y-axis base 121 as shown in FIG. 4. One end of each of the first to fourth Y-axis springs 123a to 123d may be coupled to the Z-axis base 111 and the other end may be coupled to the lower portion of the Y-axis base 121. In this case, the first to fourth Y-axis springs 123a to 123d may be disposed to be tensioned and compressed in the Y-axis direction.

That is, the first and second Y-axis springs 123a and 123b have one end in the Y-axis direction coupled to the upper portion of the Z-axis base 111, and the other end in the Y-axis direction is the Y-axis of the Y-axis base 121 It may be coupled to the support (121a). And the third and fourth Y-axis springs (123c, 123d), the other end in the Y-axis direction is coupled to the upper portion of the Z-axis base 111, and one end in the Y-axis direction is the Y-axis support of the Y-axis base 121 Can be coupled to (121a).

The first and third Y-axis springs 123a and 123c are disposed at positions opposite to each other with respect to the Y-axis support 121a, and may be disposed in the same length direction. Therefore, when the first Y-axis spring 123a is compressed, the third Y-axis spring 123c is stretched, and when the first Y-axis spring 123a is stretched, the third Y-axis spring 123c may be compressed. . That is, the first and third Y-axis springs 123a and 123c may have a relative restoring force.

The second and fourth Y-axis springs 123b and 123d are disposed at positions opposite to each other with respect to the Y-axis support 121a, and may be disposed in the same longitudinal direction. Therefore, when the second Y-axis spring 123b is compressed, the fourth Y-axis spring 123d is tensioned, and when the second Y-axis spring 123b is tensioned, the fourth Y-axis spring 123d may be compressed. . That is, the second and fourth Y-axis springs 123c and 123d may have a relative restoring force.

Here, the first and third Y-axis springs 123a and 123c and the second and fourth Y-axis springs 123b and 123d may be disposed to be spaced apart from each other.

When the Y-axis base 121 vibrates, the first and second Y-axis dampers 125a and 125b serve to attenuate the vibration. To this end, the first and second Y-axis dampers 125a and 125b are disposed under the Y-axis base 121. In this embodiment, the first and second Y-axis dampers 125a and 125b may be operated by hydraulic pressure or pneumatic pressure, and may extend or contract in length in the Y-axis direction.

The first Y-axis damper 125a is disposed adjacent to the first and third Y-axis springs 123a and 123c, and one end in the Y-axis direction is coupled to the upper portion of the Z-axis base 111, and The other end may be coupled to the lower portion of the Y-axis base 121.

The second Y-axis damper 125b is disposed adjacent to the second and fourth Y-axis springs 123b and 123d, and the other end in the Y-axis direction is coupled to the upper portion of the Z-axis base 111, and One end may be coupled to the lower portion of the Y-axis base 121.

The Y-axis stopper 127 is coupled to the lower portion of the Y-axis base 121 so as to move in the Y-axis direction. The Y-axis stopper 127 may be disposed to fix a state in which the Y-axis base 121 is moved by a predetermined distance in the Y-axis direction. That is, the Y-axis stopper 127 includes the Y-axis base 121, the Z-axis base 111, the first to fourth Y-axis springs 123a to 123d, and the first and second Y-axis dampers 125a and 125b. When attempting to repair the back, it serves to fix the Y-axis base 121 so that it does not move.

That is, the Y-axis stopper 127 is disposed through a hole formed in the protrusion disposed above the Z-axis base 111 and is coupled to the Y-axis base 121. Therefore, when the Y-axis stopper 127 is moved in the Y-axis direction by applying an external force to the Y-axis stopper 127, the position of the Y-axis base 121 can be changed, and thus the Y-axis stopper 127 is moved. By fixing, the changed position of the Y-axis base 121 can be fixed.

The first and second Y-axis masses 129a and 129b are disposed on the Y-axis base 121. In this case, the first and second Y-axis masses 129a and 129b may be disposed at positions where the first and second X-axis guide rails 122a and 122b of the Y-axis base 121 are not disposed. A plurality of first and second Y-axis masses 129a and 129b may be provided, respectively, and may be coupled to an upper portion of the Y-axis base 121. The first and second Y-axis masses 129a and 129b may be spaced apart from each other and coupled to the rim of the Y-axis base 121, respectively.

As a plurality of first and second Y-axis masses 129a and 129b are respectively provided, a plurality of first and second Y-axis masses 129a and 129b correspond to the natural frequency of vibration when the structure vibrates in the Y-axis direction. The mass applied to the Y-axis base 121 can be adjusted by adjusting the number of ). In this embodiment, the first and second Y-axis masses 129a and 129b affect the Y-axis base 121 and the Z-axis base 111 and do not affect the X-axis base 131. To this end, the first and second Y-axis masses 129a and 129b may be disposed at a position independent of the position at which the first and second X-axis guide rails 122a and 122b disposed on the Y-axis base 121 are disposed. I can.

The X-axis suction unit 130 is disposed above the Y-axis suction unit 120 and may be vibrated by moving in the X-axis direction above the Y-axis suction unit 120. The X-axis suction unit 130 includes an X-axis base 131, first to fourth X-axis springs 133a to 133d, first and second X-axis sliding guides 134a and 134b, and first and second X-axis springs 133a to 133d. It includes 2 X-axis dampers 135a and 135b, an X-axis stopper 137, and an X-axis mass 139.

The X-axis base 131 may have a substantially rectangular shape, and may have a plate shape. In this embodiment, the X-axis base 131 may have an approximately square shape.

As illustrated in FIG. 4, the first and second X-axis sliding guides 134a and 134b may have a length in the X-axis direction. The first and second X-axis sliding guides 134a and 134b are coupled to the first and second X-axis guide rails 122a and 122b disposed on the Y-axis base 121, and the first and second X-axis It may slide along the length direction of the guide rails 122a and 122b. Accordingly, the X-axis base 131 may be moved along the first and second X-axis guide rails 122a and 122b by the first and second X-axis sliding guides 134a and 134b.

In this embodiment, a plurality of the first and second X-axis sliding guides 134a and 134b are respectively shown to be coupled to the lower surface of the X-axis base 131, but each one is the X-axis base 131 as necessary. Can be combined on the bottom of At this time, when each of the first and second X-axis sliding guides 134a and 134b are disposed on the lower surface of the X-axis base 131, one of the first and second X-axis sliding guides 134a and 134b is It may have a relatively long length compared to the plurality of first and second X-axis sliding guides 134a and 134b.

The first to fourth X-axis springs 133a to 133d are disposed below the X-axis base 131 as shown in FIG. 4. One end of the first to fourth X-axis springs 133a to 133d, respectively, may be coupled to the Y-axis base 121, and the other end may be coupled to the lower portion of the X-axis base 131. In this case, the first to fourth X-axis springs 133a to 133d may be disposed to be tensioned and compressed in the X-axis direction.

That is, the first and second X-axis springs 133a and 133b have one end in the X-axis direction coupled to the upper portion of the Y-axis base 121, and the other end in the X-axis direction coupled to the lower surface of the X-axis base 131 Can be. And the third and fourth X-axis springs (133c, 133d), the other end in the X-axis direction is coupled to the upper portion of the Y-axis base 121, and one end in the X-axis direction is coupled to the lower surface of the X-axis base (131). Can be.

The first and third X-axis springs 133a and 133c may be disposed in the same length direction. Therefore, when the first X-axis spring 133a is compressed, the third X-axis spring 133c is stretched, and when the first X-axis spring 133a is stretched, the third X-axis spring 133c may be compressed. . That is, the first and third X-axis springs 133a and 133c may have a relative restoring force.

The second and fourth X-axis springs 133b and 133d may be disposed in the same length direction. Therefore, when the second X-axis spring 133b is compressed, the fourth X-axis spring 133d is stretched, and when the second X-axis spring 133b is stretched, the fourth X-axis spring 133d may be compressed. . That is, the second and fourth X-axis springs 133c and 133d may have a relative restoring force.

Here, the first and third X-axis springs 133a and 133c and the second and fourth X-axis springs 133b and 133d may be disposed to be spaced apart from each other.

When the X-axis base 131 vibrates, the first and second X-axis dampers 135a and 135b serve to attenuate the vibration. To this end, the first and second X-axis dampers 135a and 135b are disposed under the X-axis base 131. In this embodiment, the first and second X-axis dampers 135a and 135b may be operated by hydraulic pressure or pneumatic pressure, and may extend or contract in length in the X-axis direction.

The first X-axis damper 135a is disposed adjacent to the first and third X-axis springs 133a and 133c, and one end in the X-axis direction is coupled to the upper portion of the Y-axis base 121, and The other end may be coupled to the lower portion of the Z-axis base 111.

The second X-axis damper 135b is disposed adjacent to the second and fourth X-axis springs 133b and 133d, and the other end in the X-axis direction is coupled to the upper portion of the Y-axis base 121, and One end may be coupled to the lower portion of the Y-axis base 121.

The X-axis stopper 137 is coupled to the X-axis base 131 so as to move in the X-axis direction. The X-axis stopper 137 may be disposed to fix a state in which the X-axis base 131 is moved by a predetermined distance in the X-axis direction. That is, the X-axis stopper 137 includes the X-axis base 131, the Y-axis base 121, the first to fourth X-axis springs 133a to 133d, and the first and second X-axis dampers 135a and 135b. When trying to repair the back, it serves to fix the X-axis base 131 so that it does not move.

That is, the X-axis stopper 137 is disposed through a hole formed in the protrusion disposed above the Y-axis base 121 and is coupled to the X-axis base 131. Therefore, when the X-axis stopper 137 is moved in the X-axis direction by applying an external force to the X-axis stopper 137, the position of the X-axis base 131 may be changed, and thus the X-axis stopper 137 is moved. By fixing, the changed position of the X-axis base 131 may be fixed.

The X-axis mass body 139 is disposed on the X-axis base 131. In this case, the X-axis mass body 139 may be disposed in the upper center of the X-axis base 131. Therefore, when the X-axis base 131 vibrates in the X-axis direction, the center of gravity for the vibration of the X-axis base 131 may be constant.

In this embodiment, a plurality of X-axis masses 139 may be provided. Therefore, when the structure vibrates in the X-axis direction, the mass applied to the X-axis base 131 may be adjusted by adjusting the number of the plurality of X-axis masses 139 to correspond to the natural frequency of the vibration.

5 and 6, it will be described that the dynamic absorption device 100 according to the present embodiment vibrates in the Z-axis direction.

When the structure vibrates in the Z-axis direction, the dynamic absorption device 100 may be vibrated in the Z-axis direction, as shown in FIGS. 5 and 6. At this time, the Z-axis base 111 of the dynamic suction device 100 is vibrated in the vertical direction, which is the Z-axis direction, and accordingly, the Y-axis suction unit 120 and the X-axis suction disposed above the Z-axis base 111 The old part 130 may also be vibrated together.

Here, when the Z-axis base 111 vibrates in the Z-axis direction, the mass applied to the dynamic absorption device 100 basically may be the mass of all components disposed on the Z-axis base 111. That is, the Z-axis base 111, the first and second Y-axis guide rails 112a and 112b, the first and second Z-axis masses 119a and 119b, the Y-axis suction unit 120, and the X-axis suction unit It may be a mass of 130.

In this embodiment, when correcting the mass of the dynamic absorption device 100 according to the natural frequency of vibration along the Z-axis direction, such as adjusting the number of the first and second Z-axis masses 119a, 119b, Masses of the first and second Z-axis masses 119a and 119b may be adjusted.

When the dynamic absorption device 100 vibrates in the Z-axis direction, the first to fourth Z-axis springs 114a to 114d may be compressed and tensioned, and the Z-axis elastic portion 117 may be compressed and tensioned. I can. Here, the Z-axis elastic part 117 may function as an attenuator because the coefficient of the spring included in the Z-axis elastic part 117 is relatively larger than that of the first to fourth Z-axis springs 114a to 114d. That is, when the Z-axis base 111 vibrates by the first to fourth Z-axis springs 114a to 114d, the vibration of the Z-axis base 111 is attenuated by the restoring force of the Z-axis elastic portion 117. I can.

In addition, with reference to FIGS. 7 and 8, it will be described that the dynamic absorption device 100 according to the present embodiment vibrates in the Y-axis direction.

When the structure vibrates in the Y-axis direction, the dynamic absorption device 100 may be vibrated in the Y-axis direction, as shown in FIGS. 7 and 8. At this time, the Y-axis base 121 of the dynamic absorption device 100 is vibrated in the Y-axis direction, and accordingly, the X-axis suction unit 130 disposed above the Y-axis base 121 also vibrates in the Y-axis direction. Can be.

Here, when the Y-axis base 121 vibrates in the Y-axis direction, the mass applied to the dynamic absorption device 100 may be the mass of all components disposed on the Y-axis base 121. That is, the Y-axis base 121, the first and second X-axis guide rails 122a and 122b, the first to fourth Y-axis springs 123a to 123d, the first and second Y-axis sliding guides 124a, 124b), the first and second Y-axis dampers 125a and 125b, the Y-axis stopper 127, the first and second Y-axis masses 129a and 129b, and the X-axis suction unit 130. .

In other words, when the Y-axis base 121 vibrates in the Y-axis direction, the masses of the first and second Z-axis masses 119a and 119b are not applied. In this embodiment, when correcting the mass of the dynamic absorption device 100 according to the natural frequency of vibration along the Y-axis direction, such as adjusting the number of first and second Y-axis masses 129a and 129b, The mass of the first and second Y-axis masses 129a and 129b may be adjusted.

When the dynamic absorption device 100 vibrates in the Y-axis direction, the first to fourth Y-axis springs 123a to 123d may be compressed and tensioned, and the first and second Y-axis dampers 125a and 125b ) Can contract and elongate. As the first and second Y-axis dampers 125a and 125b contract and expand, vibrations of the first to fourth Y-axis springs 123a to 123d may be attenuated.

In addition, with reference to FIGS. 9 and 10, it will be described that the dynamic absorption device 100 according to the present embodiment vibrates in the X-axis direction.

When the structure vibrates in the X-axis direction, the dynamic absorption device 100 is as shown. It can be vibrated in the X-axis direction. At this time, the X-axis base 131 of the dynamic absorption device 100 is vibrated in the X-axis direction. For example, when the structure has only vibration in the X-axis direction, the Z-axis suction unit 110 and the Y-axis suction unit 120 of the dynamic absorption device 100 do not move, and only the X-axis base 131 can vibrate. have.

Here, when the X-axis base 131 vibrates in the X-axis direction, the mass applied to the dynamic absorption device 100 may be a mass of the configuration disposed on the X-axis base 131. That is, the X-axis base 131, the first to fourth X-axis springs 133a to 133d, the first and second X-axis sliding guides 134a and 134b, and the first and second X-axis dampers 135a and 135b ), it may be the mass of the X-axis stopper 137 and the X-axis mass body 139.

In other words, when the X-axis base 131 vibrates in the X-axis direction, the masses of the first and second Z-axis masses 119a and 119b and the first and second Y-axis masses 129a and 129b are not applied. Does not. In this embodiment, when the mass of the dynamic absorption device 100 is corrected according to the natural frequency of vibration along the X-axis direction, the number of X-axis mass bodies 139 is adjusted. You can adjust the mass.

When the dynamic absorption device 100 vibrates in the X-axis direction, the first to fourth X-axis springs 133a to 133d may be compressed and tensioned, and the first and second X-axis dampers 135a and 135b ) Can contract and elongate. As the first and second X-axis dampers 135a and 135b contract and expand, vibrations of the first to fourth X-axis springs 133a to 133d may be attenuated.

Since the dynamic absorption device according to an embodiment of the present invention as described above can respond to vibrations on the X-axis, Y-axis, and Z-axis, only one dynamic absorption device is attached to the structure to prevent internal or external vibrations. Can respond. However, the present invention is not limited thereto, and a plurality of dynamic absorption devices may be installed in one structure as needed. For example, when the size of the dynamic absorption device is relatively small, a plurality of dynamic absorption devices may be installed in one structure.

In addition, as described above, when a plurality of dynamic absorbing devices are installed in one structure, the plurality of dynamic absorbing devices may be tuned to respond to vibrations of different frequencies. Therefore, even if vibrations having a plurality of frequencies occur in any one of the X-axis, Y-axis, and Z-axis, it is possible to respond to vibrations of each frequency.

As described above, a detailed description of the present invention has been made by an embodiment with reference to the accompanying drawings, but the above-described embodiment has been described with reference to a preferred example of the present invention, so that the present invention is limited to the above embodiment. It should not be understood, and the scope of the present invention should be understood as the following claims and equivalent concepts.

100: dynamic absorption device
110: Z-axis exhaust part
111: Z-axis base
111a: Z-axis support
112a, 112b: first and second Y-axis guide rail
113a to 113d: first to fourth fixing parts
114a to 114d: first to fourth Z-axis springs
115: Z-axis support
117: Z-axis elastic portion
119a, 119b: first and second Z-axis masses
120: Y-axis exhaust part
121: Y-axis base
121a: Y-axis support
122a, 122b: first and second X-axis guide rails
123a to 123d: first to fourth Y-axis springs
124a, 124b: first and second Y-axis sliding guide
125a, 125b: first and second Y-axis dampers
127: Y-axis stopper
129a, 129b: first and second Y-axis masses
130: X-axis exhaust part
131: X-axis base
133a to 133d: first to fourth X-axis springs
134a, 134b: first and second X-axis sliding guide
135a, 135b: first and second X-axis dampers
137: X-axis stopper
139: X-axis mass

Claims (12)

A Z-axis suction unit fixed to the structure and vibrating in the Z-axis direction;
A Y-axis suction unit disposed above the Z-axis suction unit and vibrating in the Y-axis direction; And
It is disposed above the Y-axis suction unit, and includes an X-axis suction unit vibrating in the X-axis direction,
The Z-axis suction unit,
Z-axis base;
A plurality of fixing parts coupled to the structure and coupled to the Z-axis base so that the Z-axis base moves in the Z-axis direction;
A plurality of Z-axis springs coupled to the plurality of fixing parts and providing a restoring force when the Z-axis base is moved in the plurality of fixing parts; And
Including a Z-axis mass disposed on the top of the Z-axis base,
Dynamic absorption device. The method of claim 1,
The Z-axis suction unit,
A Z-axis elastic part disposed below the Z-axis base and providing a restoring force to the Z-axis base; And
It is coupled to the Z-axis base, further comprising a Z-axis support portion for supporting the Z-axis elastic portion,
Dynamic absorption device. The method of claim 1,
A Y-axis guide rail is formed on the Z-axis base to guide the Y-axis suction unit to move,
The Y-axis suction unit,
A Y-axis base disposed on a lower surface of a Y-axis sliding guide coupled to the Y-axis guide rail so that the Y-axis suction unit slides in the Y-axis direction;
A plurality of Y-axis springs providing restoring force when the Y-axis base moves in the Y-axis direction; And
Including a Y-axis mass disposed on the upper portion of the Y-axis base,
Dynamic absorption device. The method of claim 3,
The Y-axis suction unit,
Further comprising at least one Y-axis damper for attenuating the movement of the Y-axis base,
At least one of the Y-axis dampers has one end in the Y-axis direction coupled to the Z-axis base, and the other end in the Y-axis direction is coupled to the Y-axis base,
Dynamic absorption device. The method of claim 3,
The Y-axis suction unit,
Further comprising a Y-axis stopper for stopping the movement of the Y-axis base,
Dynamic absorption device. The method of claim 3,
The Z-axis mass includes first and second Z-axis masses spaced apart from each other in the Y-axis direction above the Z-axis base,
The Y-axis suction unit is disposed on the Z-axis base so as to be moved between the first and second Z-axis masses,
Dynamic absorption device. The method of claim 3,
The plurality of Y-axis springs include first to fourth Y-axis springs,
One end of the first and second Y-axis springs are coupled to the Z-axis base in the Y-axis direction, and the other end in the Y-axis direction is coupled to the Y-axis base,
In the third and fourth Y-axis springs, the other end in the Y-axis direction is coupled to the Z-axis base, and one end in the Y-axis direction is coupled to the Y-axis base,
The first and third Y-axis springs are arranged side by side in the longitudinal direction of the first and third Y-axis springs,
The second and fourth Y-axis springs are arranged side by side in the longitudinal direction of the second and fourth Y-axis springs,
Dynamic absorption device. The method of claim 3,
An X-axis guide rail for guiding the X-axis suction unit to move is formed on the Y-axis base,
The X-axis exhaust part,
An X-axis base disposed on a lower surface of an X-axis sliding guide coupled to the X-axis guide rail so that the X-axis suction unit slides in the X-axis direction;
A plurality of X-axis springs providing restoring force when the X-axis base moves in the X-axis direction; And
Including an X-axis mass disposed on the top of the X-axis base,
Dynamic absorption device. The method of claim 8,
The X-axis exhaust part,
Further comprising at least one X-axis damper for attenuating the movement of the X-axis base,
At least one X-axis damper has one end in the X-axis direction coupled to the Y-axis base, and the other end in the X-axis direction is coupled to the X-axis base,
Dynamic absorption device. The method of claim 8,
The X-axis exhaust part,
Further comprising an X-axis stopper for stopping the movement of the X-axis base,
Dynamic absorption device. The method of claim 8,
The plurality of X-axis springs, including first to fourth X-axis springs,
One end of the first and second X-axis springs are coupled to the Y-axis base in the X-axis direction, and the other end in the X-axis direction is coupled to the X-axis base,
The third and fourth Y-axis springs have the other end in the X-axis direction coupled to the Y-axis base, and one end in the X-axis direction is coupled to the X-axis base,
The first and third X-axis springs are arranged side by side in the longitudinal direction of the first and third X-axis springs,
The second and fourth X-axis springs are arranged side by side in the longitudinal direction of the second and fourth X-axis springs,
Dynamic absorption device. The method of claim 8,
The Y-axis mass includes first and second Y-axis masses spaced apart from each other in the Y-axis direction above the Y-axis base,
The X-axis suction unit is disposed on the Y-axis base so as to be moved between the first and second Y-axis masses,
Dynamic absorption device.

Images