JPH11280832A - Vibration damping device and assist device therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vibration damping device which is suitable for a small- scale building. SOLUTION: A vibration damping device which is provided with a single or a plurality of masse bodies 20, 30 is/are passively provided, incorporates support means 10, 21, 31 for supporting the mass bodies 20, 30, movable in at least two directions. With this arrangement, various oscillations can be damped even though the damping device is small-sized. Further, means 31, 32 for adjusting vibration characteristics, a means 11 for attaching the masses to a rod-like member 1 and a flexible rope-like body 40 are provided, thereby making it possible to additionally install the damping device in a small-scale building.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vibration damping device for suppressing and reducing the shaking of a building such as a house, and a supporting device for providing judgment information when installing the same. The present invention relates to an anti-rolling technology and a vibration damping technology that can be easily applied to such applications.

[0002]

2. Description of the Related Art Conventionally, as a vibration damping device for attenuating the roll of a building or a structure due to an earthquake or wind, a vibration control device that detects a vibration acceleration and reciprocates a movable mass in accordance with the vibration damping device has been proposed. Japanese Patent Application Laid-Open No. 5-79223 discloses a vibration damping device that reciprocates a frame containing an additional vibrating body in accordance with the output of a vibration sensor.

[0003]

Such a conventional vibration damping device is of a type which is incorporated into a large-scale building such as a building or a high-rise building from the beginning of the building. A space for the installation is secured in the building in advance, and it is an active type having an actuator for positively generating a control force for the mass body. Further, with respect to such a building, since the rigidity and the vibration characteristics can be grasped to a certain degree from the design stage, the control conditions and the like are fixed.

[0004] Therefore, it is difficult to directly introduce such a large vibration damping device for a small-scale building such as a general wooden house. In particular, in the case of an existing house or the like, it cannot be expected that the installation place of the vibration damping device is secured. Also, there is no design data for vibration characteristics. Furthermore, since the vibration characteristics of each building are different, manufacturing different ones according to individual specifications has a disadvantage that the cost increases.

[0005] However, even for existing small-scale buildings, there is an increasing demand for installation of a vibration damping device. For example, when a high-rise building built due to redevelopment etc. suddenly blows a strong building wind to surrounding general houses, etc., houses that have been shaken by the wind etc. It is necessary to take measures as soon as possible. Therefore, it is an issue to devise a vibration damping device that can be easily added to an existing house or the like without remodeling and without increasing the cost. Further, it is a further problem to be able to easily apply such a vibration damping device without installing time when installing the vibration damping device.

The present invention has been made to solve such a problem, and has as its object to realize a vibration damping device suitable for a small-scale building. Also, the present invention
It is another object of the present invention to provide a vibration damping support device that facilitates installation of a vibration damping device in a small building.

[0007]

The first to fifth solving means invented to solve such a problem are as follows.
The configuration and operation and effect will be described below.

[First Solution] A vibration damping device according to a first solution (as described in claim 1 at the time of filing of the present application) is a device in which a single or a plurality of mass bodies are passively provided. A damping device comprising a support means for supporting the mass body so as to be movable in at least two directions.

Here, the term "passively" means that it is a passive type having no actuator for positively generating a control force on the mass body.

In the vibration damping device of the first solution, when the house or the like at the installation location is shaken by an external force such as wind, the mass body moves with a delay due to inertia. Is partially or completely offset. Thus, shaking of a house or the like is reduced. Moreover, since the moving direction of the mass body is not limited, when the direction of the swing changes due to a change in the wind direction or the like, the mass body also moves in that direction, and the shaking is promptly reduced. Thus,
Even if the direction is not fixed due to a building wind or a gust, it can be attenuated.

[0011] Further, since the passive type is simplified, the actuator and the control unit are not required, and the entire apparatus can be compactly assembled. Since the vibration damping device can be installed in a space or a low utilization space, the vibration damping device can easily be additionally introduced even in a building where the vibration damping device is not planned to be installed. In addition, since there is no need for energy supply, there is a feature that running costs are not required. Therefore, according to the present invention,
A vibration damping device suitable for an existing small-scale building can be realized.

[Second Solution] The vibration damping device of the second solution (as described in claim 2 at the beginning of the application) is the vibration damping device of the first solution, wherein: The support means is capable of adjusting vibration characteristics in any moving direction.

In the vibration damping device according to the second solution, if the vibration characteristics, such as the natural frequency, of the house or the like at the installation location are different depending on the directions such as north, south, east, west, etc. Depending on the degree of shaking, etc., it is possible to appropriately adjust the amount of attenuation in each direction so as to be maximum. As a result, even if the vibration damping device is mass-produced under the common specifications, it can be adapted to individual houses at the time of installation or after installation, so that individual requirements can be satisfied without impairing price and delivery time. Becomes Therefore, according to the present invention, it is possible to realize a vibration damping device that can be easily applied to a small-scale building in terms of device cost and the like.

[Third Solution] The vibration damping device of the third solution (as described in claim 3 at the beginning of the application) is the vibration damper of the first and second solutions. The support means can be attached to a rod-shaped body.

In the vibration damping device according to the third solution, when the vibration damping device is installed in a house or the like, it is attached to a bar-shaped component of the house or the like. In a small-scale house, pillars, beams, and the like are exposed in most of the attic and the like, and these are bar-shaped bodies, so that the vibration damping device can be introduced without substantially modifying the house or the like. Therefore, according to the present invention, it is possible to realize a vibration damping device that can be easily applied to a small-scale building from the viewpoint of cost for remodeling an installation environment.

[Fourth Solution] The vibration damping device of the fourth solution (as described in claim 4 at the beginning of the application) is the vibration damper of the first to third solutions. A non-metallic flexible string is attached to the mass body.

In the vibration damping device of the fourth solution, the free end of the flexible cord is connected to a structure such as a column or a beam of a house. At that time, the flexible cord is in a slack state. In a normal state, the mass body movably supported by the support means exerts a vibration damping function without being hindered from moving by the flexible cord-like body. If the mass falls and falls, the mass is prevented from falling by the flexible cord. Further, since the flexible cord is made of a non-metallic material, no noise is generated during use.

As a result, the mass body can be reliably prevented from dropping without damaging the environment due to noise or the like. Therefore, according to the present invention, it is possible to realize a vibration damping device that can be easily applied to a small-scale building in terms of environment and safety.

[Fifth Solution Means] A vibration damping support device, which is a fifth solution means of the present invention (as described in claim 5 at the beginning of the application), includes means for receiving a sensor output,
There is provided means for extracting characteristics of the vibration state based on the received data, and means for displaying the installation conditions of the vibration damping device based on the characteristics.

In the vibration damping support device according to the fifth solution, a sensor is installed in a house or the like into which the vibration damping device is to be introduced, and the sensor is placed in a state where communication with the sensor is possible. Placed and used. When the sensor output is transmitted, the sensor output is received, the feature of the vibration state is extracted based on the received data, and the installation condition of the vibration damping device is displayed based on the feature.
At this time, by using the positioning result in addition to the received data, it is possible to extract the characteristics of the vibration state, including the information of the main vibration direction in addition to the vibration frequency and the like.

Thus, even when there is no design data or the like on the vibration characteristics, it is easy to grasp where and in what direction the vibration damping device should be installed in the installation location based on the actual product. The Rukoto. Therefore, according to the present invention, it is possible to easily install the vibration damping device in a small-scale building.

[0022]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention for achieving a vibration damping device and its supporting device achieved by such a solution will be described. Unlike a high-rise building, in the case of a general house, there is no dedicated space for installing a vibration damping device, and it is customary that vibration characteristics such as a variety of shapes and unique deformation modes and resonance frequencies are unknown. Secure installation space in places not normally used, such as attics. Then, the sensor of the assisting device is temporarily fixed to a pillar or a beam of the attic or the like, and the main body of the assisting device is carried into the house and operated. When these are operated for several hours or several days, a shaking state is detected during that time, and the vibration characteristics of the house at the installation location are grasped from the accumulated data. In addition, as for this support device and the following vibration damping device, if there is stock, it is used.

Next, the sensor of the support device is removed and carried out together with the main body, the vibration damping device is carried in place of the sensor and the support is attached to a pillar or a beam in the attic. At that time, adjustment is made for each moving direction so that the vibration characteristics of the vibration damping device match the vibration characteristics of the house. Then, the free end of the flexible string attached to the mass is also attached to the attic column or beam. After the installation of the vibration damping device is completed in this way, the passive action of the vibration damping device thereafter alleviates the swing of the house or the like at the installation destination.

Therefore, according to this embodiment, even a simple passive type vibration damping device can be installed in an effective place. Moreover, it can be easily and safely installed in existing general houses and the like. In addition, by performing fine adjustment of the vibration characteristics of the vibration damping device even after installation,
It is also possible to enhance the effect of vibration damping to an optimum state that could not be grasped by some support devices. In addition, the transported support device can be used repeatedly for another installation destination.

[0025]

First Embodiment of a Vibration Damping Apparatus A specific configuration of a first embodiment of a vibration damping apparatus according to the present invention will be described with reference to FIG.

The vibration damping device has a mass body of 2
One metal lump 20 and one weight 30 are used. These weights 20 and 30 are merely movably supported by the next support arm 10 and the like, and do not necessarily include a drive device or a control device that vibrates or accelerates by actively applying an external force. There is no. Thereby, a plurality of mass bodies are provided passively.

The support arm 10 has an attachment mechanism (not shown) formed or added to the base end side, and the base end of the support arm 10 is attached to a mounting plate 11 previously fixed to the column 1 with bolts or screws. By attaching, the tip side is maintained in a state of extending substantially horizontally from the column 1, and a space for moving the mass 20 and the weight 30 is secured on the tip side. Thus, the support means 10 can be easily attached to a vertical rod-shaped body such as the existing column 1 or the like.

At the distal end of the support arm 10, a pair of rods 21 extending in opposite directions in the X direction are implanted. Each of the rods 21 is attached with a lump 20 interposed therebetween through a slide bearing or the like (not shown) so as to be able to move in the longitudinal direction thereof, and is connected between the rod end 22 and the lump 20 and a connection portion to the support arm 10. An elastic member such as a spring is also mounted between the and the mass 20. As a result, the mass 20 is
And a vibrating system in the X direction while balancing the static force acting on the vibrating member, constitutes a vibrating system including a spring and a mass or a vibrating system including a spring, a mass and a damper.

It is preferable to use a bearing which exhibits an appropriate and substantially constant friction coefficient during movement.
Further, it is preferable to use a spring capable of changing the spring sensitivity, such as a spring having a non-linear relationship between the deformation amount and the generated force. Further, the rod 21 and the like are further modified so that the amount of biting of the rod 21 into the support arm 10 can be changed or the rod end 22 can be driven in. Then, by changing the distance between the mass 20 and the members sandwiching the springs on both sides thereof, their spring constants are changed. Thereby, the passive vibration system composed of the lump 20 and the like
The vibration characteristics can be adjusted in the X direction.

Further, a weight 30 is provided at the tip of the support arm 10.
In order to suspend the bearing, a through hole 12 is formed by drilling or notching, and a pair of bearings 3
4 are planted facing each other. At this time, a shaft 33 having a through-hole formed in the center is incorporated so as to be rotatably supported in a horizontal state by the bearings 34. The other end of the rod 31, one end of which is connected to the weight 30, is inserted through the through hole of the shaft 33 and is fixed by fastening the nut 32. As a result, the weight 30 constitutes a vibration system of a pendulum motion capable of swinging in the Y direction in a plane perpendicular to the axis 33.

In this case as well, it is preferable to use a bearing 34 that exhibits a moderate and substantially constant friction coefficient when the shaft 33 rotates. Also, loosen the nut 32 and
The radius of the pendulum can be changed by appropriately raising and lowering and then retightening. Accordingly, the passive vibration system including the weight 30 and the like can adjust the vibration characteristics in the Y direction. Although not shown, a coil spring is provided between the rod 31 and the column 1 except for changing the radius of the pendulum,
It is also possible to change the variable range. Although the X and Y directions are orthogonal in this example, they may be oblique. Therefore, the supporting means including the supporting arm 10 and the like supports the mass bodies 20 and 30 so as to be movable in at least two directions, and can adjust the vibration characteristics in any moving direction. I have.

Further, one end of the string 40 is connected to the other end of the rod 31 projecting upward, and the other end of the string 40 is connected to the nearby beam 2 or the like. String 40
Is an engineering plastic material such as PEEK (polyetheretherketone) woven in a string or linked in a chain, and loosely connects the rod 31 and the beam 2 so as not to hinder the movement of the weight 30. Thus, the mass body 30 has the non-metallic flexible string-like body 40 attached via the rod 31. Although illustration is omitted, it is preferable that the lump 20 and the weight 30 are directly connected to the beam 2 and the pillar 1 by a string similar to the string 40 as long as the movement does not hinder the movement.

The mode of use and operation of the vibration damping device of this embodiment will be described.

First, a pillar 1 is selected which goes up above the ceiling of the house where it is installed and which is strong near the place where the shaking is severe. Then, a mounting plate 11 is mounted on the column 1, and the supporting arm 10 is engaged with the mounting plate 11, and then a mass 21 and a rod 21 with a spring are mounted on the supporting arm 10, and The rod 31 with 30 is also attached to the shaft 33 in the through hole 12 of the support arm 10. Further, with the string 40 and other appropriate strings, the rod 31 and the lump 20, etc.
30 is loosely fixed to the beam 2 or the like. Thus, the installation of the vibration damping device is completed.

Then, the house at the installation location is shaken, and
When it vibrates in the direction, the movement is
1 is transmitted to the mass 20 via the attached spring,
Vibrates in the direction. At this time, the lump 20 vibrates in a state where the phase is shifted with respect to the vibration of the column 1, so that the X-direction vibration of the column 1 is weakened based on the action. Then, when the external force that shakes the house disappears, the vibration of the lump 20 is attenuated and stopped by the frictional force or the like. Thus, the swing of the house in the X direction is reduced.

Further, when the house at the installation location is shaken and the column 1 vibrates in the Y direction, the movement is changed to the support arm 10 and the rod 31.
The weight 30 is transmitted to the weight 30, and the weight 30 swings in the Y direction. At this time, since the weight 30 vibrates in a state of being out of phase with the vibration of the column 1, the Y-direction vibration of the column 1 is weakened based on the reaction. Then, when the external force shaking the house disappears, the pendulum movement of the weight 30 is also attenuated and stopped by the frictional force or the like. Thus, the swing of the house in the Y direction is also reduced.

Further, the house at the installation location shakes, and
When the vibration in the direction oblique to the direction and the Y direction, the component in the X direction of the movement is transmitted to the mass 20 and the mass 20 vibrates in the X direction accordingly, while the component in the Y direction in the movement is The weight 30 is transmitted to the weight 30 and accordingly the weight 30 swings in the Y direction. The movement of the mass 20 reduces the vibration in the X direction, and the movement of the weight 30 causes the movement of the mass 30.
Directional vibration is reduced. Thus, the swing of the house is reduced in any direction.

As described above, even in an existing general house, the vibration damping device is installed so as not to be in the way, and the roll caused by the wind or the like is suppressed. However, when the effect in the X direction is weak, The natural frequency of the vibration system including the lump 20 is appropriately adjusted by changing the driving amount of the rod end 22.
If the effect in the Y direction is weak, the rod 3
The frequency of free vibration of the weight 30 is appropriately adjusted by changing the fastening portion of No. 1. Such adjustment can be performed not only immediately after installation, but also appropriately according to changes in the vibration characteristics of the house due to aging or an increase or decrease in furniture furniture, or changes in the external environment due to the construction of an adjacent building.

It should be noted that an unexpected accident, such as an accident in which the pillar 1 becomes brittle and breaks due to insect damage or the like, occurs, which makes it difficult to support the mass 20 or the weight 30. In this case, when the lump 20 or the weight 30 tries to fall, the string 40 or the like is stretched and the fall is prevented. Thus, unless the beams 2 and the like, such as the string 40, are all damaged, the lump 20 and the weight 30 are reliably prevented from breaking through the ceiling and dropping to the floor.

[0040]

[Second Embodiment of the Vibration Damping Device] A specific configuration of a second embodiment of the vibration damping device according to the present invention will be described with reference to FIG.

This vibration damping device comprises a weight 50, lower half portions 51 to 54 for suspending the weight, upper half portions 61 to 64 for suspending them, and a mounting portion 6 for attaching them to the beam 2.
5, 66 are provided. A mass body such as the above-described lump 20 is not provided other than the weight 50. Further, no drive device or control device is provided. Thus, the vibration damping device has a single mass body 50 passively provided.

Lower half 51-54 for directly hanging weight 50
Is a lower rod 51 having a lower end connected to the weight 50 and having a thread formed on the outer peripheral surface of the upper end, and a lower nut 5 screwed to the lower rod 51.
2 and a lower sleeve 5 in which a screw is formed on the lower end bore surface
3 and a lower fulcrum portion 54 having a bearing similar to the shaft 33 and the bearing 34 described above and connected to the upper end of the lower sleeve 53 so that the lower sleeve 53 can swing in the Y direction. The distance between the weight 50 and the lower fulcrum portion 54 is changed by the amount of screwing between the upper end portion of the rod 51 and the lower end portion of the lower sleeve 53, and the screwed state is fixed by fastening the lower nut 52. I have.

The weight 5 is indirectly connected via the lower half portions 51-54.
The upper half portion 61 to 64 for suspending the upper end 61 is connected to an upper rod 61 having a lower end connected to the lower fulcrum portion 54 and having a thread formed on an outer peripheral surface of an upper end portion, an upper nut screwed to the upper rod 61, and a lower end cavity surface. The upper end of the upper sleeve 63 is connected to the upper sleeve 63 having the same structure as the above-described lower fulcrum portion 54 but mounted in a different direction so that the upper sleeve 63 can swing in the X direction. The upper fulcrum 64 is provided with the upper fulcrum 64. The distance between the lower fulcrum 54 and the upper fulcrum 64 is varied according to the amount of screwing between the upper end of the upper rod 61 and the lower end of the upper sleeve 63. Are fixed by fastening the upper nut 62.

In this case, the swing radius of the weight 50 in the Y direction corresponds to the distance between the weight 50 and the lower fulcrum 54,
The swing radius of the weight 50 in the X direction corresponds to the distance between the weight 50 and the upper fulcrum 64, and any of the distances is variable as described above. Thus, the support means 51 to 64 of the vibration damping device also support the mass body so as to be movable in at least two directions, and can adjust the vibration characteristics in any of the moving directions. In adjusting the vibration characteristics, two coil springs are provided between the lower sleeve 53 and the beam 2 in a V-shape with respect to the center of swing, and the spring constant of the spring is made variable, though not shown. May be supported.

An attachment mechanism (not shown) is formed or added to the upper end of the mounting rod 65. The upper end of the mounting rod 65 is attached to a mounting plate 66 previously fixed to the lower surface of the beam 2 with bolts or screws. The weight 50 is gripped via the upper fulcrum 64, the upper sleeve 63, the upper rod 61, the lower fulcrum 54, the lower sleeve 53, and the lower rod 51 by being attached and fixed. Thus, the support means 51 to 66 can be easily attached to a horizontal bar-shaped body such as the existing beam 2.

One end of the string 40 similar to that described above is fixed to the side surface of the weight 50 by a small bolt or the like. Thus, this vibration damping device is also one in which the nonmetallic flexible string-like body 40 is attached to the mass body 50.

The mode of use and operation of the vibration damping device of this embodiment will be described.

In this case as well, first, a beam 2 that is strong and close to a place where shaking is intense is selected by climbing above the ceiling of the house where it is installed. Then, an attachment plate 66 is attached to the beam 2, and the weight 5 is attached to the attachment plate 66 from the upper fulcrum 64.
The mounting rod 65 connected to 0 is engaged. Furthermore, the free end of the string 40 is tied to the beam 2 or another beam or column. At this time, the string 40 is slackened so as not to hinder the movement of the weight 50. Thus, the installation of the vibration damping device is completed.

When the house at the installation location shakes and the beam 2 vibrates, the movement is transmitted to the weight 50 via a support member such as the mounting rod 65 and the weight 50 also vibrates. At that time, weight 5
0 vibrates in a state of being out of phase with the vibration of the beam 2, so that the vibration of the beam 2 is weakened based on its action. Then, when the external force that shakes the house disappears, the vibration of the weight 50 is attenuated and stopped by the frictional force or the like. In this way, the swing of the house is alleviated regardless of whether it is in the X direction or the Y direction or a direction oblique to them.

As described above, even in an existing general house, the vibration damping device is installed so as not to be in the way, and the roll caused by wind or the like is suppressed. However, when the effect in the Y direction is weak, Temporarily loosening the lower nut 52 to change the amount of overlap between the lower rod 51 and the lower sleeve 53 to appropriately adjust the frequency of free vibration in the Y-direction swing of the weight 50. When the effect in the X direction is weak, the upper nut 62 is temporarily loosened to change the amount of overlap between the upper rod 61 and the upper sleeve 63 to reduce the frequency of free vibration in the X direction swing of the weight 50. Adjust accordingly. This adjustment also
It can be performed not only immediately after the installation but also appropriately thereafter.
In addition, unexpected fall of the weight 50 is also prevented by the string 40 in the same manner as the above-described weight 30 and the like.

[0051]

[Third Embodiment of Vibration Damping Device] A specific configuration of a third embodiment of the vibration damping device of the present invention will be described with reference to FIG.

This vibration damping device (see FIG. 3A)
A weight 100, a sleeve 101 and a rod 102 for suspending the weight 100, and a gimbal portion 10 for swingably supporting these.
3 to 106 and a mounting plate 10 for attaching them to columns and beams
7 and an additional member 111 for adjusting the natural vibration frequency
To 113 are provided. In this case as well, since there is no drive device or control device that vibrates or accelerates by actively applying external force, the weight 100 is a passively provided mass body.

The gimbal portions 103 to 106 are connected to a mounting plate 107 on both sides via a bearing 106 so as to be rotatable around the YY axis.
And a shaft 103 rotatably connected around the XX axis via bearings 105 at both ends from the inside thereof.
The XX axis and the YY axis are orthogonal to each other at the center of the shaft 103, and the upper end of the rod 102 is connected to the center of the shaft 103 from below. As a result, the gimbal portions 103 to 106 are
It is a supporting means for supporting the weight 100 hanging down via the first and the second movably in the XX axis direction and the YY axis direction.

The frame 104 of the gimbal portion is provided with a pair of arms 111 extending from the outer surface thereof in the X direction. The arm 111 is provided with an appropriate screw forming process or the like so that the adjusting weight 112 can be mounted thereon and the mounting position can be moved in the X direction and fixed at a desired position. . On the other hand, a spring 113 extending in the Y direction is interposed between the weight 100 and the two mounting plates 107, and both ends thereof are connected to the weight 100 and the two mounting plates 107.

Although the detailed description is not repeated, the overall length of the sleeve 101 and the rod 102 can be changed in the same manner as in the above-described embodiment. Also, the mounting plate 107 is mounted on the frame 10 of the gimbal portion.
4, but only one of them may be provided. In that case, only one of the corresponding springs 113 is left.
12 maintains a paired state because of the need to balance.

The mode of use and operation of the vibration damping device of this embodiment will be described.

In this case as well, the mounting plate 107 is attached to an appropriate column or beam behind the ceiling of the installation destination house. At this time, depending on the arrangement of the column and the like, the mounting plate 107 is deformed into a gate shape or the like.
Use of 7) facilitates the mounting (see FIG. 3B).
Then, the gimbal section 103-1 with the arm 111
06 and the attachment of the weight 100 are completed, an appropriate spring 113 is selected and attached between the weight 100 and the mounting plate 107, and a pair of adjustment weights 112 having an appropriate weight is selected and attached to the arm 111. I do. Thus, the installation of the vibration damping device is completed.

When the house at the installation location swings, the vibration is transmitted from the mounting plate 107 to the weight 100 via the gimbal parts 103 to 106 and the hanging members 101 and 102, and the weight 100 also vibrates. At this time, the shaking of the house can be suppressed most effectively by forming an appropriate phase delay between the natural frequency of the weight 100 and the shaking frequency of the house. The natural frequency of the weight 100 is appropriately adjusted.

That is, when it is desired to increase or decrease the natural frequency in both the X and Y directions, the overall length of the sleeve 101 and the rod 102 is changed. When it is desired to increase or decrease the natural frequency around the YY axis to deal with the vibration component in the X direction, the adjustment weight 112 is moved along the arm 111 to change the moment of inertia.
If adjustment is still not possible, replace the adjustment weight 112. Or try adding or removing.
Further, to deal with the vibration component in the Y direction, XX
To increase or decrease the natural frequency around the axis, use the spring 11
Try changing 3. When the spring 113 is changed, the influence of the change also extends to the natural frequency around the YY axis.
If necessary, the influence is offset by moving the adjustment weight 112 or the like.

Thus, also in this case, the vibration damping device is installed in an existing general house or the like so as not to be in the way.
Appropriate adjustment is also made, so that the roll caused by the wind or the like is accurately suppressed. It should be noted that this device also has the weight 30 described above.
Similarly to the above, it is desirable to connect the weight 100 to a pillar or the like using the slackened string 40.

[0061]

[Embodiment of Assisting Device] An embodiment of an assisting device for vibration damping according to the present invention will be described with reference to FIG.

This support device comprises a support device main body 80 and a plurality of accelerometers 71 to 73 as sensors. Each of the accelerometers 71 to 73 also includes antennas 74 to 76 in addition to the mounting means for the column 1 and the beam 2 and the built-in battery, and transmits detected acceleration data to the support device main body 80. It is supposed to.

The support device main body 80 includes accelerometers 71 to 73
Although the receiving unit 81 is provided to receive the sensor output of the above, a plurality of receiving units are provided for simultaneous reception of a plurality of sensors. The support device main body 80 incorporates a hard disk 82 and a microprocessor 83 for data storage and arithmetic processing, and also has a display (not shown) for displaying measurement data and processing results. Have been.

In the microprocessor 83, a data collection routine 85, a mode analysis routine 86, and a display routine 87 are installed. Among them, the data collection routine 85 converts the acceleration data transmitted one after another from the accelerometers 71 to 73 into the hard disk 8 as it is or after converting the data into velocity and position data.
2 is performed.

The mode analysis routine 86 performs a vibration mode analysis process to extract the characteristics of the vibration state of the installation destination house based on the received data stored in the hard disk 82. For example, data obtained when the data oscillates beyond a predetermined level is added while being appropriately weighted, and each matrix element is converted into a matrix of 3 rows × 3 columns corresponding to the up, down, front, back, left and right directions and their cross-correlation. And processing for calculating eigenvalues and eigenvectors related to the matrix is performed. Alternatively, the respective sensor data may simply be Fourier-transformed to separate the frequency components and calculate the combined vector of each sensor.

The display routine 87 performs a process of displaying features such as eigenvalues and eigenvectors obtained by the mode analysis routine 86 on a display. At this time, the eigenvectors and the like are shown in a graph or a simple model,
Variables of the vibration damping device, for example, the weight 50 and the lower fulcrum 5
The recommended setting value corresponding to the distance from the position 4 is also displayed. Thereby, the installation condition of the vibration damping device based on the characteristic of the vibration state is displayed in an easily understandable manner.

The mode of use and operation of the vibration damping support device of this embodiment will be described.

First, the accelerometers 71 to 73 are mounted on the pillars 1 and the beams 2 on the attic of the house where the vibration damping device is to be installed. At that time, the accelerometer 71 is installed so as to detect vibration in a certain direction in a horizontal plane, and the accelerometer 72 is installed so as to detect vibration in a direction orthogonal to the accelerometer 71 in the horizontal plane. 73 is desirably installed so as to detect vibration in a vertical direction orthogonal to both directions of the accelerometers 71 and 72. In this way, the vibration state is detected in any of the up / down, front / back, left / right directions, and the data is transmitted.

Next, the support apparatus main body 80 is set within a communication range with the accelerometers 71 to 73 such as the same house or its neighbor.
And start the operation. Then, the accelerometers 71 to
73 is received by the receiving unit 81,
The received data is stored in the hard disk 82 by the processing of the data collection routine 85.

Then, at an appropriate time after several hours or several days, the characteristics of the vibration state regarding the house at the installation location can be obtained by matrix calculation of the mode analysis routine 86 based on the accumulated data. Then, the desired installation conditions of the vibration damping device are displayed by the processing of the display routine 87 based on the extracted characteristic values. In this way, the installation conditions of the vibration damping device are presented as the initial setting values in both the X direction and the Y direction.

When the vibration damping device is to be installed based on the contents, the accelerometers 71 to 73 are removed from the column 1 or the beam 2, and then the directions in the X direction and the Y direction are matched. While attaching the above-mentioned vibration damping device. By the vibration damping device installed in this way, the shaking of the house or the like at the installation destination can be efficiently attenuated immediately after installation.

[0072]

As is apparent from the above description, in the vibration damping device according to the first solution of the present invention, the moving direction of the mass body is not limited even though it is a passive simple device. With this configuration, various types of shaking can be reduced even in a small size, and as a result, there is an advantageous effect that a vibration damping device suitable for an existing small-scale building can be realized.

Further, in the vibration damping device according to the second solution of the present invention, the vibration characteristics can be adjusted so that even if mass-produced with a common specification, it can be adapted to individual installation locations. As a result, there is an advantageous effect that it is possible to realize a vibration damping device that can be easily applied to a small-scale building in terms of device cost and the like.

Further, in the vibration damping device according to the third solution of the present invention, since the vibration damping device can be mounted on a pillar or a beam in an attic, the cost of remodeling the installation environment for a small building can be improved. In view of this, there is an advantageous effect that a vibration damping device that can be easily applied can be realized.

Further, in the vibration damping device according to the fourth solution of the present invention, the fall of the mass body is securely prevented without inconvenience such as noise generation.
This has an advantageous effect that it is possible to realize a vibration damping device that can be easily applied to a small-scale building in terms of environment and safety.

Further, in the vibration damping support device according to the fifth solution of the present invention, since the installation conditions of the vibration damping device are grasped on the basis of the actual product, the vibration damping device can be reduced in scale. There is an advantageous effect that it can be easily installed on a building.

[Brief description of the drawings]

FIG. 1A is a perspective view of an entire vibration damping device according to a first embodiment of the present invention, and FIG. 1B is a detailed cross-sectional view of a support portion.

FIG. 2 is an overall perspective view of a second embodiment of the vibration damping device according to the present invention.

FIG. 3A is a perspective view of the entire vibration damping device according to a third embodiment of the present invention, and FIG. 3B is a modified example of the mounting plate.

FIG. 4A is a diagram illustrating a state of attachment of a sensor, and FIG.
Is a block diagram of the support device main body.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Pillar (rod of building) 2 Beam (rod of building) 10 Support arm (supporting means) 11 Mounting plate (fixing member, supporting means) 12 Through hole 20 Lump (movable object, vibration member, inertia object, 21 rod (horizontal bar, guide member, support means) 22 rod end (movement range adjusting member, vibration characteristic adjusting means) 30 weight (oscillating object, vibration member, inertial object, mass body) 31 rod (vertical bar) , Hanging member, supporting means) 32 Nut (fastening member, length adjusting means, vibration characteristic adjusting means) 33 Shaft (supporting means) 34 Bearing (supporting means) 40 String (thread, rope, chain, flexible string) 50 weight (oscillating object, vibrating member, inertial object, mass body) 51 lower rod (length adjusting means, vibration characteristic adjusting means,
Support means) 52 Lower nut (fastening member, fixing means) 53 Lower sleeve (length adjusting means, vibration characteristic adjusting means, supporting means) 54 Lower fulcrum (supporting means) 61 Upper rod (length adjusting means, vibration characteristic adjusting) means,
Supporting means) 62 Upper nut (fastening member, fixing means) 63 Upper sleeve (length adjusting means, vibration characteristic adjusting means, supporting means) 64 Upper fulcrum (supporting means) 65 Mounting rod (fixing member, supporting means) 66 Mounting Board (fixing member, support means) 71, 72, 73 Accelerometer (vibration sensor) 74, 75, 76 Antenna (communication means) 80 Support device body (support device for vibration attenuation) 81 Receiver (communication means, reception means) 82 Hard disk (HD, memory, storage means) 83 Microprocessor (MPU, CPU, arithmetic processing unit) 85 Data collection routine 86 Mode analysis routine (feature extraction means) 87 Display routine (display means) 100 Weight (oscillating object, vibration) Member (inertia object, mass body) 101 Sleeve (suspension member, length adjusting means, vibration characteristic adjusting means, supporting means) 10 Rod (hanging member, length adjusting means, vibration characteristic adjusting means, supporting means) 103 Shaft (horizontal bar, rotating shaft, gimbal, supporting means) 104 Frame (horizontal frame, rotating member, gimbal, supporting means) 105 Bearing ( Gimbal, support means 106 Bearing (gimbal, support means) 107 Mounting plate (fixing member, support means) 111 Arm (inertia moment variable means, vibration characteristic adjustment means) 112 Adjusting weight (inertia moment variable means, vibration characteristic adjustment means) 113 spring (repulsive force adjusting means, vibration characteristic adjusting means)

 ──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Hideo Kobayashi 2-16-46 Minami Kamata, Ota-ku, Tokyo Inside Tokimec Co., Ltd. (72) Inventor Uhiko Takeuchi 2--16-46 Minami Kamata, Ota-ku, Tokyo Inside Tokimec Co., Ltd.

Claims (5)

[Claims] A vibration damping device having a single or a plurality of masses passively provided, wherein the masses are at least two masses.
A vibration damping device comprising a support means for supporting the movable member in a direction. 2. The vibration damping device according to claim 1, wherein said supporting means is capable of adjusting vibration characteristics in any moving direction. 3. A vibration damping device according to claim 1, wherein said supporting means is attachable to a rod. 4. A non-metallic flexible cord is attached to said mass body.
A vibration damping device according to any one of the above. 5. A system comprising: a means for receiving a sensor output; a means for extracting a feature of a vibration state based on the received data; and a means for displaying an installation condition of a vibration damping device based on the feature. Characteristic vibration damping support device.