JP2003004092A - Method for dashpot three-dimensional suspension interference type vibration control system and device thereof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To develop practical technology which does not require a power unit in the method for interfering with a wave in a vibration source such as an earthquake, while eliminating a defect in a conventional vibration control method using interference in which the variable force type three-dimensional suspension requiring a power unit is employed. SOLUTION: A dashpot which is a mechanism capable of transmitting a vibration is newly added to a three-dimensional suspension which is a conventional mechanism for three-dimensional vibration interception. By utilizing the combined mechanism and enabling computer control, the three-dimensional vibration is completely controlled in practical use.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vibration control technique using a three-dimensional suspension (Japanese Patent No. 1578230, invention by the present inventor). Further, it particularly relates to a vibration control technique using a combination of a dashpot and a three-dimensional suspension.

[0002]

2. Description of the Related Art A conventional technique, that is, a vibration control technique using a three-dimensional suspension (Japanese Patent No. 1578230, invented by the present inventor) uses a three-dimensional suspension as a three-dimensional spring to vibrate. Was to cut off. When the three-dimensional vibrations of the three axes orthogonal to each other are cut off, the vibrations can be cut off more efficiently than the one-dimensional or two-dimensional vibration cutoff. However, if a too soft spring is used, the stability of the supported body will deteriorate. Therefore, a spring having a certain hardness is used, but in that case, the supported body vibrates to some extent. Therefore, it is desirable to eliminate the transmission or residual secondary vibration. As a technology to cope with this, there was a variable force three-dimensional suspension. This variable force three-dimensional suspension controls the force of the spring, but its concrete method had insufficient performance. That is, in order to eliminate the vibration by interference, a huge power unit having a force equivalent to the vibration force is required separately. There was also a method of eliminating interference using seismic force, but there was no practical method. As a specific example, there is a method of eliminating interference by vibrating with a hydraulic power unit in addition to the coil spring.
Further, it is a method of eliminating interference by vibrating only the hydraulic power unit except for the coil spring. Alternatively, an electromagnet is used instead of the hydraulic power unit. These methods have drawbacks in that the apparatus is complicated, the volume is increased, and the cost is increased, so that their applications are limited.

[0003]

SUMMARY OF THE INVENTION The problem to be solved by the present invention is that the conventional variable force three-dimensional suspension requires a power unit such as hydraulic pressure as an energy source for vibration when eliminating interference of secondary vibration. The disadvantage is that it does. The method is to utilize the vibration energy of the vibration source, but to develop a practical method. And the method is practical,
And it must be economical technology.

[0004]

[Means for Solving the Problems] The means by which the present invention solves the above-mentioned problems is a composite mechanism comprising a combination of a three-dimensional vibration isolation mechanism called a three-dimensional suspension and a vibration transmission mechanism called a dashpot. Using
By controlling this by computer control, three-dimensional vibration is controlled, and the vibration of the supported object and the vibration of the vibration source as the support interfere with each other to eliminate the vibration.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION According to the method of the present invention, first, a composite mechanism is formed by combining a three-dimensional vibration isolation mechanism called a three-dimensional suspension and a dashpot mechanism capable of transmitting vibration. Then, the composite device is installed between the support and the supported body. Firstly, the vibration is cut off by the principle of the seismograph by the three-dimensional suspension. However, the problem of secondary vibration remains. The present invention is an apparatus for eliminating the secondary vibration at the same time and completely controlling the vibration in practice. This dashpot is a kind of brake, but a brake that uses normal surface friction cannot provide sufficient performance. The dashpot is a brake that uses the pressure applied to the volume of fluid, and since it does not use friction, it can withstand continuous, high-pressure, high-speed operation without fear of wear. However, the variable force dashpot is used here to expand the functions of the dashpot. This means that the braking force of the brake can be used in a practical sense from zero to infinity. The variable force dashpot has a variable valve installed at the fluid flow port of the dashpot to make the cross-sectional area of the flow port variable. As a specific example, the axis of the dashpot is made into a pipe shape,
The rotary shaft is passed inside the inner diameter, a rotary valve is installed at the tip of the rotary shaft, and the support mechanism is connected to the other end of the rotary shaft to make the cross-sectional area of the valve variable. As an example of the servo mechanism, a pulse motor can be used. As a method of varying the dashpot force, when the opening cross-sectional area is zero, the braking force is maximum and the lock is practically infinite, at which time the three-dimensional suspension does not operate. When the opening area is maximized, the braking force is minimum and the three-dimensional suspension functions sufficiently. In this case, the function of the dashpot partially remains, but it is a function as a normal dashpot. Acts as a container.
If the opening area is intermediate, an intermediate force acts. Next, the operation will be described in detail based on the above principle. When supporting an object using a three-dimensional suspension, the three-dimensional suspension is installed between the support side and the supported side. If the concave curved surface of the compression type three-dimensional suspension is on the support side and the steel ball is on the supported side, this may be reversed, but at the point of contact between the steel ball and the concave curved surface, the forces are perpendicular to both sides and the magnitudes are equal. The direction is opposite. In this state, when the variable force dashpot valve is fully open, the brake does not work, so when the support side is the vibration source, the three-dimensional suspension functions as it is and the supported body maintains inertia by the principle of the seismograph. To be done. Further, when the valve of the variable force dashpot is closed, the brake acts, and when the support side is the vibration source, the vibration is transmitted to the supported body as it is through the three-dimensional suspension. Utilizing the above functions,
It is possible to erase the supported body that has started to vibrate by interfering with the vibration of the support body. This is a vibration elimination method by interference that does not require a power unit using a variable force dashpot. I will summarize them below. First, basically, the vibration of the support, which is the vibration source, is blocked by the three-dimensional suspension to hold the supported body by inertia. If this state is completely achieved, interference cancellation is not necessary. However, the supported body may vibrate due to various factors such as wind.
In that case, sensors, such as accelerometers and gyros, are installed on the support side and the supported side for computer control, and when the displacements of the two are in the directions canceling each other, the valve of the variable force dashpot is closed and the opposite direction is applied. The displacements of are canceled out by interference. Since this operation is often insufficient for one vibration, the vibration can be eliminated by a large number of operations. By continuously performing this operation, the supported body is practically kept vibration-free. According to this method, the interference elimination control of vibration can be performed without a power unit, and the device can be simplified and the cost can be reduced.

[0006]

【Example】

First Embodiment A hydraulic dashpot coil spring three-dimensional suspension interference type vibration control system device. The present invention will be described in detail with reference to a specific example shown in the drawings. Figure 1
FIG. 3 is a cross-sectional view of a variable force hydraulic dashpot installed inside a cylinder and a viston coaxially using a general-purpose slide coil spring three-dimensional suspension. Here, the sliding type means the steel ball 7 in a rotatable state.
Is a model having a sliding disk 5 as a mechanism for moving in the X and Y directions, that is, on a plane orthogonal to the Z axis. In the example of FIG. 1, the permissible amplitudes in the X and Y directions are within a radius R centered on the Z axis. Note that R = D1
Is. The allowable amplitude in the Z direction is ± H1. The slide cover 5'integrated with the outer cylinder 1 holds the slide 5 to maintain the position of the steel ball 7. Inside the outer cylinder 1 is an inner cylinder 2, which serves as a connection portion of the supported body B. Inside the inner cylinder 2, there is a piston 3, which has a concave curved surface 6. When the support connecting portion 4 moves due to the movement of the support A and the steel ball 7 slides in the X and Y directions, an upward force acts on the concave curved surface 6 due to the contact principle of the concave curved surface 6 and the steel ball 7. The piston 3 is pushed upwards. At this time, since the coil spring 8 is compressed, the repulsive force causes the viston 3 to receive a downward force, the concave curved surface 6 pushes the steel ball 7, and the steel ball 7 receives a restoring force toward the center which is the Z axis. With the above-described mechanism, the three-dimensional suspension has a function of restoring the neutral state in which a constant load is suspended as shown in FIG. 1 to the original neutral state after vibrating by an external force. Z
Regarding expansion and contraction in the direction, the coil spring 8 expands and contracts by sliding the outer cylinder 1 and the inner cylinder 2. In FIG. 1, a hydraulic variable force dashpot installed coaxially with the coil spring 8 controls vibration isolation and transmission. Inside the cylinder 9 of the dashpot is a piston 12, which reciprocates on the inner surface 10 of the cylinder. The viston 12 is connected and integrated with the outer cylinder 2 by a shaft 13 of viston. Shaft 13 of the piston
The center of the valve is made hollow and the valve rotary shaft 14 is housed therein, and a rotary valve valve 14 'is provided at the tip. The other end of the valve rotating shaft 14 is a pulse motor 1 controlled by a computer.
Connect 5 The valve shaft 14 utilizes bearings 16 to smooth the rotation. FIG. 2 is an enlarged sectional view of the viston 12 of the variable force dashpot. At the tip of the shaft 13 of the piston is the viston 12. The side surface 12 'of the piston contacts the inner surface 10 of the cylinder and reciprocates, but the cylinder is omitted in this figure. When the valve rotary shaft 14 rotates, the rotary valve valve 1 attached to the tip of the rotary shaft 14 rotates.
4'rotates to flow or shut off the oil liquid. The flow of the oil liquid flows along the vertical wall surface 19 of the fluid flow port, reaches the rotary valve valve 14 ′ through the horizontal wall surface 20 of the fluid flow port, and then the horizontal wall surface 20 of the fluid flow port on the side opposite to the partition wall 21 of the fluid flow port. After that, it reaches the opposite side of the viston 12 along the vertical wall surface 19 of the fluid flow port. FIG. 3 is a plan view showing the direction aa in FIG. When the valve rotary shaft 14 rotates, the rotary valve valve 14 ′ rotates integrally with the valve rotary surface 23 because the rotary valve valve 14 ′ is integrated. Figure 3
Indicates that the rotary valve 14 'is fully opened. When the shaft rotates 45 degrees from this state, the rotary valve valve 14 'is fully closed. In FIG. 3, there are four fluid circulation ports, but there may be more. It is advisable to install two locations symmetrically on the opposite side. In a single place, in the case of this model, the rotary valve valve 14 ′ and the valve rotary shaft 1 are operated with a large hydraulic pressure when a force is applied.
In some cases, the eccentric force of 4 etc. acts on the eccentric force and frictional force acts to prevent smooth rotation. FIG. 4 is a conceptual diagram showing an example of a dashpot three-dimensional suspension interference type vibration control system device using the “interference type dashpot three-dimensional suspension” shown in FIGS. 1 to 3 described above. For each of the interference type dashpot three-dimensional suspensions 3S, the accelerometer K is provided on the support 24 side, and the supported body 2
Install accelerometer K and gyro sensor J on the 5 side. Accelerometer K on the support 24 side and accelerometer K on the supported body 25 side
By knowing the direction of the three-dimensional displacement between the support 24 and the supported body 25, and when the displacements of the two are in a condition of canceling each other by the compressive force, the valve of the variable force dashpot is closed by computer control to apply the force. Vibration is eliminated by transmission and interference. Since this erasure may be difficult with a single interference, in that case, the vibration is eliminated with a plurality of interferences. The gyro sensor J refers to a sensor that senses the azimuth based on the gyro azimuth, and the resulting horizontal and rotational directions. Gyro sensor J
Is used as a reference for determining the result of interference by the accelerometer K. The above-mentioned interference type dashpot three-dimensional suspension 3S, the accelerometer K on the side of the support 24, and the supported body 2
A required number n of sets of the accelerometer K and the gyro sensor J on the fifth side are prepared and arranged in a well-balanced manner between the supporting body 24 and the supported body 25. Then, these are connected to the controller C and the computer CP as illustrated by the pulse motor power line 26, the accelerometer connection line 28, and the gyro sensor connection line 27. The controller C and the computer CP are connected to the power supply V. This power source V is a power source for the pulse motor and the sensor that opens and closes the valve, and the computer. It is not used for the power unit that excites the vibration itself and erases it by its interference, so it has relatively low power consumption. It is enough. When the power source V is used in a building, a battery is useful as an example, but to charge the battery,
In normal times, power from the service line of the power company is used. As the backup power in case of the power supply from the service line being cut off due to an earthquake disaster or the like, there are solar power generation, wind power generation, engine generator, and the like. When used in an automobile, the battery is charged with electric power from a generator that uses an engine as a power source to obtain a power source V. In addition, the power from the generator is directly used. When used for railways, the power from overhead lines can be used directly. The "hydraulic dashpot / coil spring three-dimensional suspension interference type vibration control system device" configured as described above can practically effectively and economically eliminate vibration within a range of allowable amplitude.

【Example】

Embodiment 2: A hydraulic dashpot / coil spring three-dimensional suspension interference type seismic isolation system. The present invention will be described in detail with a specific example of a seismic isolation system for construction. The reason why the hydraulic pressure is used instead of the hydraulic pressure is that it is for construction purposes, and therefore safety is considered especially in case of fire. When water is used, stainless steel or aluminum alloy is preferable to steel as a material for the three-dimensional suspension and dashpot. However, ceramics are ideally the most suitable. FIG. 5 is a cross-sectional view of a frame type coil spring three-dimensional suspension for a wooden house, in which a variable force hydraulic dashpot is installed coaxially with the cylinder 32 and the piston 3. Here, the frame type is a mechanism for moving the steel ball 7 in the X and Y directions, that is, on a horizontal plane orthogonal to the Z axis, and as shown in FIG. It is a type in which four planes are installed and the minimum plane is three planes, but one plane is maintained, and as a result, the three-dimensional suspension 53 is kept vertical. As shown in FIG. 1, the slide type three-dimensional suspension has a triple structure of an outer cylinder 1, an inner cylinder 2 and a viston 3, whereas this frame type has a double structure of a cylinder 32 and a piston 3. Good. However, it is necessary to separately install the stopper 51. Since the amplitude R'is large in the three-dimensional suspension for seismic isolation,
Such a slide type has a large slide diameter and is inconvenient in design and economically for a wooden house of a normal scale. Therefore, the frame type as described above is effective. However, if the construction itself is large and a large slide can be installed, there is no problem with the slide type. In the example of FIG. 5, the allowable amplitudes in the X and Y directions are within a radius R ′ centered on the Z axis. Allowable amplitude in Z direction is ± (H2'-H
3). A piston 3 is provided inside the cylinder 32, and a steel ball 7 is rotatably installed at the tip of the piston 3. The steel ball 7 is also in contact with the concave curved surface 6. Foundation 3 during an earthquake
When the concave curved surface 6 installed at 4 moves and the steel ball 7 horizontally moves in the X and Y directions, an upward force acts on the steel ball 7 due to the abutting principle of the concave curved surface 6 and the steel ball 7 to cause the piston to move. 3 is pushed up. At this time, since the coil spring 8 is compressed, the repulsive force causes the viston 3 to receive a downward force, and the steel ball 7
Pushes the concave curved surface 6, and the steel ball 7 receives a restoring force toward the center which is the Z axis. For expansion and contraction in the Z direction, the coil spring 8 is moved by sliding the cylinder 32 and the piston 3.
Responds by expanding and contracting. Since the three-dimensional suspension used here uses the compression coil spring 8, when the extension limit H2 ′ in the Z direction is exceeded, the stopper 51 is required, which will be described later. With the above-described mechanism, the three-dimensional suspension has a function of restoring the neutral state in which the load of the building shown in FIG. 5 is suspended to the original neutral state after being vibrated by the seismic force. In FIG. 5, a hydraulic variable force dashpot installed coaxially with the coil spring 8 controls vibration isolation and transmission. A piston 12 is provided inside the cylinder inner surface 10 of the dashpot and reciprocates on the cylinder inner surface 10. Piston 1
A piston shaft 13 is connected to and integrated with a cylinder 32. The center of the shaft 13 of the piston is hollow, the valve rotary shaft 14 is housed therein, and a rotary valve valve 14 'is provided at the tip. A pulse motor PM controlled by a computer is connected to the other end of the valve rotating shaft 14. A bearing 29 is installed at the tip of the valve rotating shaft 14 for smooth rotation. FIG. 6 is an enlarged plan view of the plane of the piston 12 and the chamber 11 of the variable force dashpot.
The valve rotation shaft 14 is located at the center of the piston shaft 13, and the upper fluid flow port 36 is located on the peripheral surface of the piston 12. In this case, a space is provided between the cylinder inner surface 10 and the cylinder outer surface 31 to form the attached chamber 11. Room 1 with this form
1 is for limiting the height of the variable force dashpot to limit the floor height of the first floor of a residential building. The water in the cylinder reaches the lower part through the fluid flow pipe 35 and is connected to the attached chamber 11. FIG. 7 is a vertical cross-sectional view of FIG. At the center of the shaft 13 of the piston is the valve rotation shaft 14. In this case, a space is provided between the cylinder inner surface 10 and the cylinder outer surface 31 to form the attached chamber 11. The water in the cylinder reaches the lower part from the attached chamber fluid flow port 37 through the fluid flow lateral pipe 38, the fluid flow pipe 35, and is connected to the attached chamber 11 by the lower connecting pipe 39. In the attached room 11, there is water up to the water surface 40, and the others have air. The air repeats compression and expansion as the water enters and leaves the attached chamber 11, thereby adjusting the amount of water in the cylinder. FIG. 8 is a sectional view of an example in which the hydraulic dashpot / coil spring three-dimensional suspension interference type seismic isolation system is applied to a wooden house. The contents and operation of the three-dimensional suspension are as shown in Fig. 5. In this figure, the chamber 11 with the dashpot is omitted. The stopper that sets the extension limit in the Z direction is composed of a cylinder 43, a piston rod 44, and a compression coil spring 45, and the upper end and the lower end are connected to the H steel frame 33 by a universal joint 46 and the base 34. There is. The extension limit of the stopper is slightly smaller than the extension limit of the three-dimensional suspension. That is, the extension limit of the three-dimensional suspension is in the range of the radius R'from the center in the horizontal direction and in the range of H2 'in the vertical direction. As a specific example, the numerical values are R ′ = 200 mm and H2 ′ = 160 mm. However, H2 ′ of 160 mm is the sum of H3 = 43 mm, which is the rise of the steel ball 7 when the concave curved surface is eccentric by the radius R ′, and the effective piece amplitude H2 ′ = 117 mm of the vertical movement of the house building. FIG. 9 is a plan view of the base 34 portion, the concave curved surface 6, the steel ball 7, and the universal joint 46 of FIG. The concave curved surface 6 is installed at the corner of the foundation 34 at which the cloth foundation portion 34 of the foundation 34 intersects at a right angle. The stopper 51 is installed on the X axis. On Y-axis or 45
There is also a stopper possible position 51 'on the parallel line. It will be installed in one or more locations as needed. The moving range of the steel ball 7 is a range 52 ′ having a radius R ′ from the center, and a restoring force acts toward the center. The movement range of the stopper 51 is a range 52 of a radius R ′ centered on the lower universal joint 46 in plan view. The center L is the center L of the base 48 of the superstructure. FIG. 10 is a vertical cross-sectional view of a suspension foundation composed of a horizontally assembled H steel 33 frame supported by four three-dimensional suspensions 53 on a horizontally installed foundation 34. The grid interval of the frame 33 is H0.
H0 is between 2 as an example, which is about 3,636 mm. The foundation 34 is an inverted T-shaped cloth foundation having a wide bottom surface 54, which is assembled in a square shape and a flat-plate foundation is provided at each of four corners to be integrated as a whole. A concave curved surface 6 made of stainless steel is installed on the corner foundation. The vertical posture of the three-dimensional suspension is maintained by integrating the four three-dimensional suspensions with a steel frame. Four
One stopper 51 has a universal joint 4 at the bottom.
It is connected to the foundation 34 at 6, and the upper part is connected to a structure connected to the frame at a universal joint 46. The underfloor concrete 55 is higher than the ground line GL. The base 48 is installed on the H steel 33 of the steel frame, and the building 56 is installed on the base 48. 11 is shown in FIG.
It is the top view which showed the base 34 part of 0. The cloth foundation 34 along the grid L is installed in a square shape, and the flat plate foundations 34, 34 ″ are installed in each corner. The concave curved surface 6 is installed in the center of each corner foundation 34, and in this example, the concave curved surface is installed. The distance L1 between the centers of the 6 is smaller than the distance L0 between the cores.For example, when L0 = 3,636 mm, L1 = 2,786 mm, etc. The stoppers 51 are arranged symmetrically. This is good to make couples less likely to occur.A stopper 51 is arranged at a stopper possible position 51 'as needed.In an actual residential building, several frame units are combined to form a seismic isolation foundation. In that case, it is possible to freely set the dimension of the span interval L0 within a certain range Regarding the method of computer controlling the seismic isolation device configured as described above Is shown in Fig. 12 according to the method shown in Fig. 4 of Embodiment 1. In Fig. 12, "hydraulic dashpot / coil spring three-dimensional suspension interference type seismic isolation system" is one interference type that constitutes each part thereof. Accelerometer K on the foundation 43 side for each dashpot 3D suspension 3S
And an accelerometer K and a gyro sensor J on the building 56 side. By the accelerometer K on the side of the foundation 43 and the accelerometer K on the side of the building 56, the direction of the three-dimensional displacement between the foundation 43 and the building 56 is known, and when the displacements of the two are in a condition of canceling each other by compressive force, computer control is performed. The valve of the variable force dashpot is closed to transmit force and eliminate vibration by interference. The degree of valve closure is calculated by calculating the optimum solution. This erasing works effectively in the case of compressive force in this embodiment. In addition, since it may be difficult to make a single interference, in that case, the vibration is eliminated by a plurality of interferences.
The gyro sensor J refers to a sensor that senses the azimuth based on the gyro azimuth, and the resulting horizontal and rotational directions. The gyro sensor J is used as a reference for determining the result of interference by the accelerometer K. A required number n of sets of the interference type dashpot three-dimensional suspension 3S, the accelerometer K on the foundation 43 side, the accelerometer K on the building 56 side, and the gyro sensor J are prepared, and the foundation 43 and the building 56 are prepared. Place them in a good balance between them. And these are the pulse motor power circuit 26
The accelerometer connection line 28 and the gyro sensor connection line 27 are connected to the controller C and the computer CP as illustrated. The controller C and the computer CP are connected to the power supply V. This power supply V is the power supply for the pulse motor and sensor for opening and closing the valve, and the computer, and is not used for the power unit that excites the vibration force itself with the energy of the power supply and eliminates the vibration by its interference. A relatively small amount of power is sufficient. When the power supply V is used for buildings,
A battery is useful as an example, but the battery is normally charged with electricity from the service line of the electric power company. The reserve power for charging in case the power supply from the service line is cut off due to an earthquake disaster or the like includes solar power generation, wind power generation, and an engine generator. In addition, when there is no earthquake, valve 1 of the dashpot
4'is closed to give a braking effect to prevent swaying due to wind pressure. In this case, the leeward three-dimensional suspension 53 receives a compressive force, and the leeward three-dimensional suspension 53 receives a pulling force. Since the three-dimensional suspension 53 of this example has a structure that effectively functions against a compressive force, the leeward three-dimensional suspension 53 is locked and the leeward three-dimensional suspension 53 extends upward. When the valve 14 'is closed during extension, a vacuum condition is generated in the cylinder, so valve 1
Adjust 4'to prevent it. In that case, the building 56 leans to the leeward side when the wind is strong, but since the wind has strong and weak waves, if it is regarded as vibration, the shaking can be eliminated in the same manner as in the case of an earthquake. In the event of an earthquake, catch the initial tremor of the earthquake and release the brakes to respond. The "hydraulic dashpot / coil spring three-dimensional suspension interference type seismic isolation system" configured as described above can practically effectively and economically eliminate vibration within the allowable amplitude range.

[0009]

According to the method described above, it is possible to effectively control and eliminate three-dimensional vibration which has been difficult in the past. Further, since the device by this method is compact, strong and simple in principle, it can be used for various purposes. That is, the present invention is a seismic isolation system device for civil engineering buildings, a vibration control system device for vehicles, a vibration control system device for ships, a vibration control system device for aircraft, a vibration control system device for precision machine installation base, It is possible to practically and economically cope with various applications such as a vibration control system device that eliminates vibration inside a mechanical device. Therefore, by utilizing the present invention,
It is possible to eliminate various harmful effects caused by vibration.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a general-purpose slide-type three-dimensional suspension in which a variable-force hydraulic dashpot is installed coaxially with a cylinder and a piston.

FIG. 2 is an enlarged sectional view showing a piston of the variable force hydraulic dashpot shown in FIG.

3 is a plan view taken along the line aa in FIG. 2. FIG.

FIG. 4 is a conceptual diagram showing an example of a dashpot three-dimensional suspension interference type vibration control system device.

FIG. 5 is a vertical cross-sectional view of a frame type hydraulic dashpot / coil spring interference type three-dimensional suspension for wooden houses.

FIG. 6 is an enlarged plan view showing a chamber with the variable force hydraulic dashpot shown in FIG. 5 and its surroundings.

7 is a vertical cross-sectional view of FIG.

FIG. 8 is a vertical cross-sectional view showing an example in which a frame type hydraulic dashpot / coil spring interference type three-dimensional suspension for wooden house construction and a stopper are installed in a wooden house.

9 is a plan view showing a basic portion of FIG. 8. FIG.

FIG. 10 is a frame-type hydraulic dashpot of FIG.
FIG. 3 is a vertical cross-sectional view of a base isolation base unit in which four sets of coil spring interference type three-dimensional suspensions and stoppers are integrated to keep horizontal.

FIG. 11 is a plan view showing a basic portion of FIG.

FIG. 12 is a conceptual diagram showing an example in which a hydraulic dashpot / coil spring three-dimensional suspension interference type seismic isolation system is applied to a residential building.

[Explanation of symbols]

1 ……… Outer cylinder. 2 ... Medium cylinder. 3 ......... Piston. 4 ………… Support side connection part. 5 ……… Sliding disk. 5 '... Slide cover. 6 ………… Concave curved surface. 6 '... The end of the concave curved member. 7 ……… Steel ball. 7 '......... X
Position of the steel ball when it is eccentric by radius R or R'in the (Y) direction. 8 ……… Coil spring. 9 ………
Dashpot cylinder. 10 ……… The inner surface of the cylinder. 11 ……… A room with a dash pot. 1
2 ……… The front of the piston. 12 '......... The side of the piston. 13 ………… Viston axis. 14 ...
…… Valve rotation axis. 14 '... Rotary valve valve.
15 ……… Pulse motor. 16 ………… Bearing. 17 ………… Rotor. 18 ... Magnet. 19 ……… Vertical wall of the fluid flow port. 20 …………
Side wall of the fluid flow port. 21 ……… Fluid flow port partition. 22 ……… Fluid flow direction. 23 ……… Valve rotation surface. 24 ………… Supporting body. 25 …………
Supported object. 26 ………… Pulse motor power line.
27 ……… Gyro sensor connection line. 28 ...
...... Accelerometer connection line. 29 ……… Steel ball at the end of the valve. 30 ... Lower fluid flow port. 31 ……
… The outer surface of the cylinder. 32 ………… Cylinder. Three
3 ……… H steel. 34 ………… Basics. 34 '……
… Part of the foundation. 34 "... The slope of the foundation. 35
……… Fluid distribution pipe. 36 ……… Upper fluid flow port. 37 .... Attached chamber fluid flow port. 38 …………
Fluid flow horizontal tube. 39 ……… Lower connection pipe. 40 ...
…… The surface of the water. 41 ……… Top of the cylinder. 42
……… The bottom surface of the cylinder. 43 ……… Cylinder. 44 ………… Piston rod. 45 ... Compression coil spring. 46 ……… Universal joint.
46 '... The position of the universal joint moved by the horizontal eccentricity limit distance R'in the Z-direction neutral state.
47 ………… The center line of the stopper in an eccentric state. 48
……… Foundation. 49 ……… The outer wall of the building. 50 ……
… Draining skirt. 51 ………… Stopper. 5
1 '......... Position where stopper can be used. 52 ………… The eccentric limit of the stopper centering on the universal joint of the foundation. 52 '... The eccentricity limit of the steel ball from the center of the concave curved surface. 53 ……… Three-dimensional suspension. 54
……… Base bottom. 55 ……… Concrete floor under the floor. 56 ……… The upper building position. 3S ………… Sliding type interference dashpot three-dimensional suspension (short name). 3S '……… Frame-type interference dashpot three-dimensional suspension (short name). A ……… Supporting body. B ......... Supported object. a ... A code indicating the cross-sectional direction. C .........
controller. CP: Computer. C
L, CL '......... Each is the center line. D
……… The width of the foundation cloth foundation. D1 ......... The eccentric limit distance from the Z-axis of the disk-shaped slide 5. FL ……
… Floor line. GL ………… Grand line.
H ……… H steel. h ……… H steel beams. H
1 '......... Slide limit distance from the neutral state of the inner cylinder. H2 ............ The downward slide limit distance from the neutral state of the dashpot. H2 '............ Upper limit slide distance from the neutral state of the dashpot, or single-sided amplitude limit distance in the Z direction of the three-dimensional suspension.
Hd ………… Vertical holding distance from the neutral state. Ld
……… The horizontal holding distance from the neutral state. J ……… Gyro sensor. K: A three-dimensional accelerometer. L
……… The core of the foundation of the superstructure. L0 ……… The span between the cores of the base of the superstructure. L1 ………… The span between the centers of the concave curved surface. NO. 1 ……… The first number from 1 to n of the interference type dashpot three-dimensional suspension. NO. 2 ……… The second number from 1 to n of the interference dashpot three-dimensional suspension. NO. n ………… The n-th code from 1 to n in the interference dashpot three-dimensional suspension. PM: A pulse motor. R .........
Eccentric limit distance from the Z axis of the steel ball, equal to D1. R '
………… The eccentricity limit distance of the steel ball from the Z axis and the eccentricity limit distance from the center of the stopper. V ……… Power supply. X (Y) ... A horizontal X-axis or a horizontal Y-axis orthogonal to the X-axis. Z: A vertical Z axis that is orthogonal to the X axis and the Y axis. Z '... A vertical Z'axis that is orthogonal to the X and Y'axes.

Claims (24)

[Claims] 1. A method of a vibration control system, which makes it possible to transmit and block three-dimensional vibrations and vibrations by combining a dashpot and a three-dimensional suspension. 2. The method of a vibration control system according to claim 1, wherein a variable force dashpot in which the stress transmission force of the dashpot is variable is used. 3. The vibration control according to claim 2, wherein a valve is installed at a fluid flow port of the dash pot, and a variable force dash pot having a variable cross-sectional area of the flow port is used. System method. 4. The valve of the dashpot, wherein the shaft of the dashpot is formed into a pipe shape, the rotary shaft is passed through the inside of the dashpot, a rotary valve is installed at the tip of the rotary shaft, and a servo mechanism is connected to the other end of the rotary shaft. The method of the vibration control system according to claim 3, characterized in that the cross-sectional area is variable. 5. The method of the vibration control system according to claim 4, wherein a pulse motor is used for the servo mechanism. 6. The dashpot is arranged in the same space as the spring of the three-dimensional suspension, and the dashpot is arranged in the same space as in the first, second, third, fourth and fifth aspects.
A method of a vibration control system according to item. 7. The method of vibration control system according to claim 6, wherein the dashpot is arranged coaxially with the spring. 8. A sensor is installed on each of the support side and the supported side, and when the respective displacements are in a direction to cancel each other, the vibration transmission force of the variable force dashpot is operated by computer control to eliminate the vibration by interference. Claims 2, 3, and 4 are characterized in that
The method of the vibration control system according to any one of paragraphs (5), (5), (6) and (7). 9. The method of a vibration control system according to claim 8, wherein an accelerometer is used as the sensor. 10. The method of a vibration control system according to claim 9, wherein a gyro is used together with the sensor. 11. A vibration control system device capable of transmitting and blocking three-dimensional vibrations and vibrations by combining a dashpot and a three-dimensional suspension. 12. The vibration control system device according to claim 11, wherein a variable force dashpot having a variable stress transmission force of the dashpot is used. 13. The vibration control according to claim 12, wherein a valve is installed at a fluid flow port of the dash pot, and a variable force dash pot having a variable cross-sectional area of the flow port is used. System unit. 14. The dashpot shaft is pipe-shaped,
A rotary shaft is passed through the inside of the inner diameter, a rotary valve is installed at the tip of the rotary shaft, and a servo mechanism is connected to the other end of the rotary shaft to make the cross-sectional area of the valve variable. 15. The vibration control system device according to claim 13. 15. The vibration control system device according to claim 14, wherein a pulse motor is used for the servo mechanism. 16. A dashpot is arranged in the same space as a spring of a three-dimensional suspension, claims 11, 12, 13, and 14,
And a vibration control system device according to item 15. 17. The vibration control system device according to claim 16, wherein the dashpot is arranged coaxially with the spring. 18. A sensor is installed on each of the support side and the supported side, and when the respective displacements are in a direction to cancel each other, the vibration transmission force of the variable force dashpot is operated by computer control, and the vibration is erased by interference. Claims 12, 13, characterized in that
The vibration control system device according to the 14th, 15th, 16th, and 17th brothers. 19. The vibration control system device according to claim 18, wherein an accelerometer is used as the sensor. 20. The vibration control system device according to claim 19, wherein a gyro is used together with the sensor. 21. A slide type three-dimensional suspension is used, and the first and second aspects of the present invention.
Item, Item 3, Item 4, Item 5, Item 6, Item 7, Item 8
11. A method of a vibration control system according to items 9, 9 and 10. 22. A slide type three-dimensional suspension is used, and claims 11, 12, 13, 14, 15, 15, 16 and 17. The vibration control system device according to any one of claims 18, 19 and 20. 23. A concave curved surface of 3 or 4 or more is installed on a foundation, and a portion opposite to the concave curved surface of the three-dimensional suspension is installed on a suspension frame and integrated, and is placed on the basic concave curved surface, and Claims 1, 2, 3 and 4, characterized in that a frame type is used that enables vertical movement and horizontal movement of a three-dimensional suspension without slides by using a stopper together. The method of the vibration control system according to item 4, item 5, item 6, item 7, item 8, item 9, and item 10. 24. A concave curved surface of 3 or 4 or more is installed on a foundation, and a portion opposite to the concave curved surface of the three-dimensional suspension is installed on a suspension frame and integrated, and is placed on the basic concave curved surface, and A frame type is used which enables vertical movement and horizontal movement of a three-dimensional suspension without a slide by using a stopper together. The vibration control system device according to item 14, item 15, item 16, item 17, item 17, item 18, item 19, and item 20.