SU1131985A2 - Laminated cellular panel - Google Patents

Abstract

1. MULTI-LAYER CELLULAR PANEL on author. St. No. 1032139, characterized in that, in order to increase the efficiency of energy dissipation of vibration effects, the panel is made with continuous and perforated punching membranes installed in the internal cavities of the projections of the profiled sheets and separating the loose or liquid aggregate. 2. The panel according to claim 1, wherein the perforated membranes are installed between solid ones.

Description

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The invention relates to construction, in particular to laminated building panels of relatively small thickness and may be used to create separate parts of buildings and structures.

According to the main author. St. No. 1032139 is a well-known multi-layer cellular panel comprising layers of profiled sheets in the form of cellular structures in the form of truncated protrusions directed in opposite directions and interconnected along the frontal surfaces, and supporting sheets with openings having reinforcing border and coaxial with the protrusions of profiled sheets; supporting sheets are placed on the inner side of the profiled sheets bounding the panel, protruded through the openings of the supporting sheets, the supporting sheets connected to the inner surface of the base of the profiled sheets, and the edges of the opening are connected to the inner surface of the protrusions of the profiled sheets. In the internal cavities of the protrusions of the profiled sheets a loose or liquid filler is placed. The panel is made with facing sheets connected to the external surfaces of the profiled sheets and covering the protrusions in the cavities. The facing sheets can be made with concavities, aligned with the cavities of the projections and directed inside the cavities 1.

The disadvantages of the known device are the low efficiency of oscillations, due to the low energy absorbing possibilities of the friction process in viscoelastic filler particles.

The purpose of the invention is to increase the efficiency of energy dissipation of vibration effects on the panel.

This goal is achieved by the fact that the multilayered cell panel is made with continuous and perforated splice membranes installed in the internal cavities of the projections of the profiled sheets and separating the bulk or liquid aggregate.

In addition, the perforated membranes are installed between the solid.

Vibration resistance of the panel is increased due to the fact that the pressure of the bulk or liquid filler on the facing sheets does not cause tearing of the profiled sheets of the panel from the facing and carriers, creating contact pressure on the swathing membranes and quenching when swatting (and also squeezing through the perforated stuffer membranes) the energy of vibrations . Membranes are involved in the movement of bulk or liquid filler protrusions of profiled sheets under the influence of vibrations, is a dynamic vibration damper, and this increases the energy intensity of the panel and contribute to the reduction of vibration effects on the carrier and veneer sheets by increasing frictional force of the filler. In order to increase energy absorption, it is possible constructively to ensure that the eigenfrequencies of the clapping membranes are equal to the resonant frequencies of suppressed oscillations. In places of amplitudes of resonant oscillations, the scattering increases due to a change in the properties of the filler and the membranes, thus achieving an improvement in the damping of vibrations of the flume at frequencies close to resonant ones.

FIG. 1 and 2 depict designs

5 panels, cut; in fig. 3 - protrusion of a profiled sheet, in various embodiments, section.

The panel consists of profiled sheets 1 and 2, having a double periodic grid of projections 3 and 4, which are connected to each other along the areas of the projections 5. Perforated supporting layers 6 and 7 are attached to the inner surface that coincides with the original base surface of the profiled sheets. The border of the openings 8 is located. Inside the protrusions there is a filler 9, and the inner space of the protrusions 3 and 4 is covered with facing sheets 10, which can be made with coaxial protrusions and directed inwards of the projections 3 and 4 in 11, fastened to the outer source surfaces of the profiled sheets 1 and 2. The membranes are mounted with convexes, repeat one another or opposite one another. They are flanged to fit. Spin-off membranes 12 and 13 are installed in the large and small bases of the protrusions, as well as inside the cavity of the projections 14 and 15. The masses of the filler 9 are distributed between the membranes, and the membranes 13 and 15 are perforated.

The construction of the panel is made as described in the main author's certificate. After assembly in

5, the inner space of the protrusions 3 and 4 install the beaded perforated membranes 13, then the protrusions 3 and 4 are filled with a predetermined volume of filler 9, the intermediate membranes 14 and 15 are fixed by stiffness, then the elevations 3 and 4 are filled with filler 9, the calibrated membranes 12 are installed large protrusion bases, after which the panel is covered with facing sheets 10, which are fastened to the outer source surfaces of profiled sheets 1 and 2. Concavities 11 in facing sheets 10 can be made, for example er, stamping. Sand, various granulated polymers, as well as water, oils with different viscosities and additives as thickeners are used as fillers. Depending on the type of filler and the magnitude of the vibration effects, the membranes are made of elastic materials by stamping or from elastic metal sheets, pressed rubber, and polymeric materials.

The energy absorption of vibration effects on the panel is carried out by moving the mass of the filler in the closed spaces of the protrusions of the profiled sheets as a result of the occurrence of filler particles between themselves, the walls of the membranes and the protrusions in the viscoelastic friction, and due to the elastic ejection of the membranes 12-15 and the concavities 11 of the facing sheets 10 and their restoration of their shape under alternating load. The conical shape of the projections also contributes to the intensive movement of the filler masses. Fully insulated Qi carrier layers for

the expense of facing sheets from the external environment solves the problems of structural durability and biological protection in cases of the manufacture of carrier sheaths made of toxic materials. Through membranes 13 and 15, the filler is squeezed.

The positive effect of this design is that. That the panels have the ability in a large range of frequencies and amplitudes of external action to effectively dissipate the vibration effects, this greatly increases the vibration stability of the object as a whole, which includes such a panel design. The proposed multilayered cell panel is characterized by a significant reduction in the labor intensity of manufacturing vibration-resistant power structures, simplifying the structure as a whole due to the absence of a significant number of additional elements for vibration protection, therefore, a reduction in the total cost of their manufacture.

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Claims (2)

1. MULTI-LAYERED CELL PANEL by ed. St. No. 1032139, characterized in that, in order to increase the energy dissipation efficiency of vibrational influences, the panel is made with continuous and perforated and clapping membranes installed in the internal cavities of the protrusions of the profiled sheets and separating loose or liquid aggregate. 2. Panel by π. 1, characterized in that the perforated membranes are installed between solid. Riga 1