CN1303088A - Structural material containing folded sandwich and sound insulating plate - Google Patents
Structural material containing folded sandwich and sound insulating plate Download PDFInfo
- Publication number
- CN1303088A CN1303088A CN 01108038 CN01108038A CN1303088A CN 1303088 A CN1303088 A CN 1303088A CN 01108038 CN01108038 CN 01108038 CN 01108038 A CN01108038 A CN 01108038A CN 1303088 A CN1303088 A CN 1303088A
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- fold
- sound
- core material
- fold core
- material containing
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- 239000000463 material Substances 0.000 title claims abstract description 20
- 239000011162 core material Substances 0.000 claims description 25
- 238000005516 engineering process Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 239000000853 adhesive Substances 0.000 claims description 2
- 230000001070 adhesive effect Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 5
- 239000002131 composite material Substances 0.000 abstract description 2
- 239000006185 dispersion Substances 0.000 abstract 1
- 238000005452 bending Methods 0.000 description 8
- 238000009413 insulation Methods 0.000 description 8
- 239000004744 fabric Substances 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000013016 damping Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 206010011224 Cough Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 206010047700 Vomiting Diseases 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 229920006231 aramid fiber Polymers 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000009439 industrial construction Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 230000008673 vomiting Effects 0.000 description 1
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Abstract
A structural folded sandwich material is disclosed, and it has the thin-wall folded structure composed of alternate concave and convex edges in transverse direction and serrated edges in dongitudinal direction. After the said sandwith material is adhered between two surface plates, a composite sound isolating board is made up. Its advantages are high effect on absorbing and isolating sound, high rigidity and strength, and strong thermal dispersion power.
Description
Fold core material structure material of the present invention and sound insulationg board belong to sound insulation sound absorption technique field.Tupolev technology university, only Russian in the world at present noise made in coughing or vomiting mountain grasps large-sized fold core once shaping technology, domesticly carries out the research of this respect since 95 years Nanjing Aero-Space University.The fold sandwich can be used paper, sheet metal (made such as δ＞0.3mm), fiber cloth.Compare with traditional lightweight filling material, the fold sandwich has jumbo relief fabric, have bigger strength and stiffness, and the in addition a lot of useful special natures of the fold core material structure of unlike material, as: broadband sound absorption and sound insulation, thermal-radiating scattering power etc.The fold core material structure can be widely used in civilian noise abatement, aeromotor and navy submarine noise reduction etc., and as a kind of novel light composite structure, its application and the scope of application also will constantly enlarge.
Along with the development of modernization industry and improving constantly of people's material life, the quantity of machinery and equipment, transport facility and domestic electric appliance is increasing, and noise problem is also more and more serious, and noise pollution has become the problem of contemporary world.In the past ten years, it is traffic noise, man-made noise and industrial construction noise that the neighbourhood noise problem of China mainly shows in the city, administers an urgent demand that noise pollution and control noise have become the people.Therefore, lightweight fold core material structure carries out opacity technique research to it and has very strong learning value and realistic meaning as partiting sound member.But, the sound insulation of this so far lightweight fold core material structure, sound absorbing capabilities, rigidity, physical properties such as intensity and thermal-radiating scattering power, further research and raising await.
It is good to the objective of the invention is to develop a kind of broadband sound insulation, absorption height, rigidity, intensity.Lightweight fold core material structure material and sound insulationg board with stronger thermal scattering ability.
Fold core material structure of the present invention is a kind of vertical, laterally all be zigzag special-shaped core material structure material, promptly laterally be flexuose chimb and concave edge, vertically be toothed edge, horizontal zigzag rabbet constitutes one by one peak face with toothed edge longitudinally.
The formation synoptic diagram of accompanying drawing 1. fold core material structure materials.
Accompanying drawing 2. fold sandwich structure sound insulationg boards are formed synoptic diagram.
By accompanying drawing 1 as can be known, fold core material structure material of the present invention is by laterally being flexuose chimb 1 and concave edge 2 and vertically being flexuose toothed edge 3 and being formed in and having jumbo thin-walled relief fabric in the unit volume.
Because the present invention has jumbo violent curved structure in unit volume, thereby in basic, normal, high frequency, all have sound insulation, sound absorbing capabilities preferably, and have higher rigidity, intensity and stronger thermal scattering ability etc.
Accompanying drawing 2. is the sound insulationg boards that utilize fold core material structure material of the present invention to make, and it is to utilize adhesive technology that fold core material structure material 4 and panel 5 are composited.
The soundproof theory of fold sandwich structure sound insulationg board:
This kind structure soundproof theory is based on the comprehensive effect that core suppresses the damping action of panel vibration and improves the bending stifiness characteristic of structure different frequency section.
The panel of sound insulationg board causes vibration under the effect of acoustic pressure, because panel and flexible fold core are glued together, its damping action is suppressed panel, and particularly the low ebb to the resonance region and the district that coincide has the obvious suppression effect.
The bending stifiness of fold core material structure sound insulationg board changes with the variation of frequency.In low-frequency range, the bending stifiness of panel makes the group effect effect of this sandwich plate obvious because of the coupling of fold core filling material, and the bending stifiness of its structure improves; At Mid Frequency, the bending stifiness of battenboard reduces; During to high band, its bending stifiness approaches stationary value, approximate the summation of the bending stifiness of panel, the coupling of fold core almost disappears, total bending stifiness reduces, make the corresponding raising of critical coincidence frequency, thereby can in wider frequency, keep oise insulation factor to improve with the frequency rising.
This sound insulationg board has following features:
1) fold core sound insulationg board is a kind of lightweight broadband sound barrier, but Effective Raise wherein, low The oise insulation factor of frequency range;
2) adopt sheet-like material shaping core, non-secondary pollution;
3) energy consumption is low, saves material.
The starting material of fold core material structure can adopt thin board-like material, as aramid fiber paper, and paper and papery thin plate, sheet metal (sheet copper thickness δ≤0.4mm; Thin aluminum sheet thickness δ≤0.4mm, sheet steel thickness δ≤0.3 etc.).
The sound insulation panel adopts various wooden, thin plate plastics, metal, its thickness according to specific product request for utilization choose, also can adopt various fiber cloth, as glass fabric etc.
Claims (2)
1. fold core material structure material is characterized in that being formed in and having jumbo thin-walled fluctuating shape structure in the unit volume with vertically being flexuose toothed edge (3) by laterally being flexuose chimb (1) and concave edge (2).
2. a fold core material structure sound insulationg board is characterized in that utilizing the adhesive technology method that fold core material structure material (4) and panel (5) are combined into fold clamping structure sound insulationg board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01108038 CN1303088A (en) | 2001-01-11 | 2001-01-11 | Structural material containing folded sandwich and sound insulating plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01108038 CN1303088A (en) | 2001-01-11 | 2001-01-11 | Structural material containing folded sandwich and sound insulating plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1303088A true CN1303088A (en) | 2001-07-11 |
Family
ID=4656928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01108038 Pending CN1303088A (en) | 2001-01-11 | 2001-01-11 | Structural material containing folded sandwich and sound insulating plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1303088A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100416650C (en) * | 2002-12-27 | 2008-09-03 | 茅祚庥 | Sound absorptive material and its producing method and use |
| CN105637580A (en) * | 2013-06-25 | 2016-06-01 | 香港科技大学 | Acoustic and vibrational energy absorption metamaterials |
-
2001
- 2001-01-11 CN CN 01108038 patent/CN1303088A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100416650C (en) * | 2002-12-27 | 2008-09-03 | 茅祚庥 | Sound absorptive material and its producing method and use |
| CN105637580A (en) * | 2013-06-25 | 2016-06-01 | 香港科技大学 | Acoustic and vibrational energy absorption metamaterials |
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|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |