JPS60121186A - Vibro-isolating structure for living quarter - Google Patents

Abstract

PURPOSE:To aim at a considerable reduction in a solid propagation sound, by supporting an independently constituted living quarter room suspensorily on a living quarter constituting part being partitively formed with vertical and horizontal members via aling member. CONSTITUTION:A living quarter room 14 being constituted separately from a living quarter by peripheral walls 13 is housed inside the living quarter made up of living quarter constituting members such as a vertical member 11 and a horizontal member 12 or the like, while the living quarter room 14 is suspended from the vertical member 11 via a sling member. As the sling member, an L- shaped member 15 attached to the vertical member 11 and an inverted L-shaped member 16 attached to the peripheral walls 13 of the living quarter room 14 are engaged with each other via a vibro-siolating element 17 of rubber or the like. In addition, a stopper element 20 of rubber or the like is additionally installed whereby a large vibration is limited to the smallest possible extent. With this constitution, a solid propagation sound out of a vibration generator part is thus effectively reducible.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides phantom vibration isolation for ships, marine structures, and living quarters.
It is related to construction.

A typical floor structure used in the living quarters of ships and offshore structures, as shown in Figure 1, has two textures on a copper plate (1).
Vinyl sheet through intermediate phase (2) such as asbestos,
A steel deck, which is a basic element of the living quarters structure, is covered with carpets and other surface coverings (3).

The side walls of the living quarters are made of steel plates (1') as shown in Figure 2.
) is layered with a heat insulating material (a) such as glass wool, and the surface material (5) such as a strike plate and the steel plate (11) are connected with stud bolts (6).

Next, we will discuss an example of the process by which noise is generated in living areas, using ships and offshore structures as examples.

In Figure 6, (A) is the engine part, which is one of the main excitation sources, and (B) is the representative room of the living area.The physical VC of both is connected by a steel deck, etc., but in general, Separated. In the figure, (7) is the engine, (8) is the engine support frame, and (9) (1 (1) is the ceiling and side walls of the living room (C).

The vibration of the engine (7) first propagates through the engine support frame (8) and vibrates the steel deck of the accommodation room (C), and the vibration of this steel deck causes the intermediate material made of latex, asbestos, etc. in the accommodation room to vibrate. (2) propagates to
Furthermore, noise is generated from the floor due to the vibration propagated to the surface covering material (3) on the floor of the living room.

Such noise is called solid-borne sound, and in the structure described above, it has the largest contribution to noise generation. The conventional floor and side wall structures shown in Figures 1 and 2 are mainly intended to meet the functional requirements of the room, such as waterproofing, corrosion resistance, IH7 heat, etc., and are the main source of noise in ships, etc. In many cases, consideration is not given to the reduction pressure of solid-borne sound.

The present invention has been proposed in view of the above circumstances, and is a method for storing a living quarter room configured independently from the living quarter within a living quarter composed of living quarter constituent members such as vertical and horizontal members. At the same time, it relates to a vibration isolation structure for a residential area that is suspended from the structural members of the residential area via a hanging member, and its purpose is to prevent structure-borne sound from occurring. The object of the present invention is to provide a residential area vibration isolation structure that effectively reduces vibrations.

In the present invention, as described above, a living room that is constructed independently of the living space is stored within a living space that is made up of members that constitute the living space such as vertical and horizontal members. By suspending the living area via a hanging member from the vertical member of the living area, the living area is insulated from vibrations from the living area, and vibrations transmitted from the living area are insulated or attenuated. This effectively reduces the sound transmitted by the solid-state dam 11, which accounts for most of the noise, and effectively prevents the generation of noise.

The present invention will be described below with reference to the illustrated embodiments.

In FIG. 4, the vertical member (It+) and the horizontal member (121
In a living area composed of living area constituent members such as
3), “a living quarters room that is configured independently of a living quarters (
14), and the same Jρ: living room (14) is suspended from the vertical part, ttQI) via a hanging member.

Figure 5 shows the details of the hanging part of the living room αa, and shows the hanging part Q51 of the vertical member (L-shaped hanging member Q51 attached to 1υ and the surrounding wall θ3 on the side of living room θa). The mold hanging member θ6) is engaged with the mold suspension member θ6) through a vibration-proofing element αη made of rubber or other polymer material.

The hanging positions of the living quarters rooms (14) may be arranged in strips on the four sides of the living quarters as shown in Figure 6, or at the four corners of the living quarters as shown in Figure 7. May be placed.

In the figure, the intermediate material for the floor of the residential area room (+4) in town 0, marked α, is the surface covering material.

In addition, the living quarters room α (a) suspended from the living quarters in this way
In order to limit the large vibration of the living room, a stopper element (2) such as rubber may be interposed between the peripheral wall Q3 of the living room 04) and the upper horizontal part of the living room. A stopper element CI!I) made of rubber or the like may also be interposed between the lower horizontal part a2 and the peripheral wall 03) of the living room 04).

Since the illustrated embodiment is configured as described above, the square compression of the upper part of the vertical section (when the mark vibrates, the side hanging part side 09 also vibrates. The same member 05) on the side of the living area The anti-vibration element 07) made of shaped rubber supports the entire weight of the living room 04) and insulates or damps vibrations transmitted from the vertical portion n'u through the hanging member Q5).

Generally, the vibration damping ability of a polymeric material such as rubber that constitutes the vibration isolating element is caused by internal friction. Since the internal friction of this rubber is due to interactions between rubber molecules, rubber molecules, and fillers, it is particularly suitable for absorbing high-frequency vibrations. In order to express this numerically, a vibrating rubber (
FIG. 8 shows an example of the frequency characteristics when a mass f: 2■, which has a number of doubles, is placed on the vibration table (24) and vibrated. The vertical axis represents the amplitude of the mass on a Tezibel scale, and the definition is 20A! It's cloudy. Here, αm, . . . at are the amplitudes of the mass (23) and the vibration table I24, respectively, and represent the amplitudes of plane D and plane 0 in FIG. 9, respectively. 08 or less (am(at)
If it becomes, it shows that there is an effect of elastic support. Since solid-borne sound has a main component in the frequency range of 60 to 40H2, it can be seen from Section 8- that polymeric materials such as vibration-proof rubber are effective in blocking solid-state sound. Also, as shown in Figure 5, vibration isolating rubber 0
7) uses compression in the loading direction, and can handle a large load per unit area, making it suitable for supporting the weight of the chamber. In this way, the vibration energy transmitted from the reassembly member Ql) to the 0th floor peripheral wall of the living room 04) is reduced, and solid-borne sound due to vibration of the living room surrounding wall (13) can be reduced.

Although the present invention has been described above with reference to embodiments, various design changes may be made without departing from the spirit of the present invention.
The peripheral wall α3) may be suspended using a hook, a chain, or a combination of a hook, a chain, and a rubber.

[Brief explanation of the drawing]

1 and 2 are longitudinal cross-sectional views of the side walls of conventional living quarters, FIG. 6 is an explanatory diagram showing the excitation source of the living quarters, and FIG. 4 is a diagram of the vibration isolation structure of the living quarters according to the present invention. 5 is an enlarged view of part V in FIG. 4, and FIGS. 6 and 7 are longitudinal sectional views showing one embodiment.
The figures are a cross-sectional plan view cut along the line B-B of Fig. 4, Fig. 8 is a chart showing the frequency characteristic curve of anti-vibration rubber, and Fig. 9 is a cross-sectional plan view cut along line B-B of Fig. 4.
The figure shows the experimental equipment. (11)...Vertical member, (12)...-Horizontal member, Trace...peripheral wall, alpha ridge...Living quarters, Q5)QG)...Suspending member Sub-agent Patent attorney Shige Okamoto 3 people outside the text Figure 1 Figure 2 Figure 4 ■1 12 = Publication f5 2nd Figure 5

Claims (1)

[Claims] In an attribute area composed of living area constituent members such as vertical and horizontal members, a living area room configured independently from the living area is housed, and the same living area room is connected to the above-mentioned area through a hanging member. A vibration isolation structure for living quarters that is suspended from the constituent members of the living quarters.