JPS58178703A - Vibration control apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a photographing device that reduces low frequency vibrations in passageways, railways, etc.

Generally, the AC 18i circuit station is as shown in Figure 1.

It has a structure in which both ends of the bridge tll are supported by skin legs (2).

On this traffic route, the increase in the number of vehicles and the increase in traveling speed on the 31 electric road plaster beams are causing an excessive external force to be applied to the traffic plan, and furthermore, Coupled with the decrease in the bending rigidity of the f# beam due to the lengthening of the spans, extremely large vibrations are induced in the traffic road. Such vibrations occur when the atmosphere generates air pressure vibrations, which are transmitted to the surroundings as low-frequency sound pressure waves, usually below 30 Hz. It may surface as low frequency temporary pollution. In general, due to S# propagation to the ground), nearby buildings, houses, etc. will be loosened, and all shutters, glass doors, etc. will be rattled. Or the movement of the house itself.

It also causes vibration pollution that causes great discomfort to residents.

This leads to the occurrence of noise and vibration pollution.

Measures against road vibrations include increasing the rigidity of conventional 0g# beams, reinforcing bridge piers, or installing auxiliary m piers and supporting the bridge supports Ffrf:JW. In order to reduce the discomfort caused to residents, we will improve or change the movement properties of the air, and install soundproof walls, covers, etc. to insulate the low-frequency back pressure itself that propagates into the atmosphere. I was planning.

However, the reality is that these conventional measures have not been able to sufficiently reduce vibration and noise.
Installation of auxiliary 1111n in the traffic ditch of fC and R construction, reinforcement of beams, etc. involves the use of land space, is often subject to theoretical constraints, and has construction problems. There was a drawback.

The present invention is fundamentally different from the conventional vibration reduction measures as described above, and is suitable for traffic roads.

The present invention relates to a vibration-side 1sII device that reduces vibrations caused by traffic roads and modifies the vibration characteristics by actively applying a vibration control force according to the vibration characteristics.

FIG. 2 shows a conceptual diagram of the control block according to the present invention.

(3) is the traffic road vibration thread targeted for vibration reduction; (4)
(5) is a control circuit, and (6) is a drive device that generates braking force.

With such a configuration, the physical quantities of vibrations (displacement, velocity acceleration) of road traffic are measured by the detector (4).

In response to this vibration, the control force is applied via the control circuit +53 t'' to prevent the driver (6) from starting, and the driver's road rage (3) is added to reduce the vibration of the traffic road. do.

The present invention relates to the driving device (6) of the vibration control device for traffic roads having the above-mentioned configuration. Fig. 3 shows an example of a linear magnetic W& Shown below. In fig.

alI is a slow connection, and ■ is a coil holder.

The NJ magnetic joke (to) is an exciting electromagnet, and (2) is a magnetic steel or permanent magnet.

An example #A of the present invention is shown in FIG. In Figure 4,
The mountain is the bridge, (2) is the bridge pier, (to) is the arm attached to /a beam mountain, and 0 is the linear # equipment, one example of which is the configuration shown in Figure 3. Indicates predicate salary.

This invention utilizes the push and pull force of a linear electric maelstrom to expand and contract the span t between the tips of two slow-acting rods attached to it, adds a moment to the linear electric maelstrom, and controls the vibration control required. (Foundation) It is something that meets. Adjustment of the lever push/pull force is possible by changing the voltage applied to the coil shown in FIG. 3, and can be easily incorporated into the system shown in FIG. 2.

In addition, in the above-mentioned implementation, when the arm was attached to the inner end of the bridge on the traffic road, the other ends of the arm were connected to each other using a hydraulic pressurizer and a slow contact. The device may be driven by a device/fi, or other mounting methods may be used, and it can also be applied to towers, building antennas, floors, and other objects by devising a mounting method.

As described above, according to the present invention, the r! MIIh equipment's own DL sills, piers,
It has the advantage that it can be easily attached to each m@rostomy, since fixing it to the ground is uneasy.

Fig. 1 is a perspective view showing a general traffic route, Fig. 2 is a block diagram showing the @goremakura of the present invention, and Fig. 3 is a structural diagram showing an example of linear area air equipment that can be adopted in the present invention. , FIG. 4 is a block diagram showing the installation of the hydraulic m-oscillator to the traffic road bond according to the present invention 11.

In the figure, +11 = 11 beams (2)... Piers (3)
...Bridge vibration system (4) ...Detector (5)-fl
lll[1 path+6)-g moving equipment+7)-...vibration t(8
)...External force (9)...Control force Scream...Arm...Slow connection ■...9 Near electrical equipment side...Coil holder Mouth...Coil a...Excitation yoke ( To)...
・Exciting electromagnet In Figure 9, the same number indicates the same part or the part corresponding to rlt.

Agent Nobuo Yoshino - Figure 1 Figure 2

Claims (1)

[Claims] A 7-piece suator is installed on the proboscis of the J & structure that generates vibrations when subjected to external force, and the vibration speed of the target structure is detected by a sensor attached to the target structure, and the control is performed by comparing the vertical speed of the silkworm. An Sa haze control device in which a force is generated by the actuator VC, characterized in that an electrodynamic actuator is used as the actuator.