JPH01171855A - Damping steel plate - Google Patents
Damping steel plateInfo
- Publication number
- JPH01171855A JPH01171855A JP32835587A JP32835587A JPH01171855A JP H01171855 A JPH01171855 A JP H01171855A JP 32835587 A JP32835587 A JP 32835587A JP 32835587 A JP32835587 A JP 32835587A JP H01171855 A JPH01171855 A JP H01171855A
- Authority
- JP
- Japan
- Prior art keywords
- steel plate
- steel plates
- stripes
- damping
- gaps
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 44
- 239000010959 steel Substances 0.000 title claims abstract description 44
- 238000013016 damping Methods 0.000 title claims abstract description 28
- 229920000642 polymer Polymers 0.000 claims abstract description 6
- 239000000126 substance Substances 0.000 claims description 8
- 239000000463 material Substances 0.000 abstract description 9
- 238000001035 drying Methods 0.000 abstract description 2
- 239000011347 resin Substances 0.000 abstract description 2
- 229920005989 resin Polymers 0.000 abstract description 2
- 229920002803 thermoplastic polyurethane Polymers 0.000 abstract description 2
- 239000007790 solid phase Substances 0.000 abstract 1
- 238000005452 bending Methods 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 229910000746 Structural steel Inorganic materials 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 229920005549 butyl rubber Polymers 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- HDERJYVLTPVNRI-UHFFFAOYSA-N ethene;ethenyl acetate Chemical group C=C.CC(=O)OC=C HDERJYVLTPVNRI-UHFFFAOYSA-N 0.000 description 1
- 229920001038 ethylene copolymer Polymers 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000000088 plastic resin Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 229920001909 styrene-acrylic polymer Polymers 0.000 description 1
Landscapes
- Vibration Prevention Devices (AREA)
- Laminated Bodies (AREA)
Abstract
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は機械的性質の方向性の少い制振鋼板に関する。[Detailed description of the invention] [Industrial application field] The present invention relates to a damping steel plate with less directional mechanical properties.
即ち機械構造物下敷用、建築物床板用等の制振鋼板で、
更に詳しくは機械構造物例えばモーター、コンプレッサ
ー、鍛造機、クレーンガーダ−等の下に敷くことにより
、これら機械構造物に生じる振動を吸収し、振動に伴っ
て発生する騒音を低減するもので、あるいはビル、階段
、観覧席等の床板に使用して振動を吸収し騒音を低減す
ることを目的とした、制振鋼板に関するものである。In other words, vibration-damping steel plates for underlaying mechanical structures, building floorboards, etc.
More specifically, by placing it under mechanical structures such as motors, compressors, forging machines, crane girders, etc., it absorbs the vibrations generated in these mechanical structures and reduces the noise generated due to the vibrations. This relates to vibration-damping steel plates that are used for the floorboards of buildings, stairs, bleachers, etc., for the purpose of absorbing vibrations and reducing noise.
従来から振動を生じ易いこれらの用途に対しては、床と
機械との間にゴム等の緩衝材を敷くことはごく常識的と
なっている。しかしゴム等はいわゆる振動絶縁材として
の機能はあるが、機械自身の振動を吸収する振動減衰性
能は小さく、機械構造物の振動を低下させ騒音を低下さ
せる機能はない。又最近上として自動車用に開発された
厚さ２．０１以下の制振鋼板が市販されるようになった
が、これは機械構造物の下敷用としては強度が小さく、
これを重ね合せて使用しても、座屈強度や曲げ強度の点
で問題がある。For these applications where vibrations are likely to occur, it has been common sense to place a cushioning material such as rubber between the floor and the machine. However, although rubber has a function as a so-called vibration insulating material, its vibration damping ability to absorb the vibrations of the machine itself is low, and it does not have the function of reducing the vibration of the machine structure and noise. Recently, damping steel plates with a thickness of 2.01 mm or less, which were developed for automobiles, have become commercially available, but they are too weak to be used as underlays for mechanical structures.
Even if these are used in a stacked manner, there are problems in terms of buckling strength and bending strength.
本発明は振動減衰性能に優れ、大きな負荷過電にも十分
対応でき、且縦、横方向の機械的性質の差が少ない、制
振鋼板の開示を目的としている。The present invention aims to disclose a vibration damping steel plate that has excellent vibration damping performance, can sufficiently cope with large load overcurrents, and has little difference in mechanical properties in the longitudinal and lateral directions.
〔問題点を解決するための手段、作用〕本発明は、この
ような実情に鑑みなされたものであって、縞状の凹凸を
持つ２枚の鋼板を、その凹凸の縞が互に９０度異なるよ
うにして向い合うように合せ、それらが形成する隙間に
損失係数０．１以上の高分子物質を夾在させてなる、機
械的強度の方向性が小さな制振鋼板である。[Means and effects for solving the problems] The present invention was made in view of the above-mentioned circumstances, and consists of two steel plates having striped concavities and convexities, the concave and convex stripes of which are at an angle of 90 degrees to each other. This is a vibration-damping steel plate with a small directionality of mechanical strength, which is made by aligning different plates so that they face each other and interposing a polymeric substance with a loss coefficient of 0.1 or more in the gap formed by the plates.
以下本発明を図面に基いて詳細に説明する。第１図−Ａ
は、縞状の凹凸を設けた一枚の鋼板、例えば下面の鋼板
１′の例を示す図である。又第１図−Ｂは、縞状の凹凸
を持つ２枚の鋼板１及び１′を、凹凸の縞方向が互に直
角になるように凹凸面を向い合わせるように重ね、それ
らが形成する隙間２に、損失係数０．１以上の高分子物
質３を埋め込んだ本発明の制振鋼板の例で、鋼板１及び
１′と高分子物質３とからなる複合構造鋼板である。The present invention will be explained in detail below based on the drawings. Figure 1-A
1 is a diagram showing an example of a steel plate provided with striped irregularities, for example, a steel plate 1' on the lower surface. In addition, Fig. 1-B shows two steel plates 1 and 1' having striped unevenness, stacked so that the uneven surfaces face each other so that the striped directions of the unevenness are perpendicular to each other, and the gap formed by them is 2 is an example of a vibration damping steel plate of the present invention in which a polymer substance 3 having a loss coefficient of 0.1 or more is embedded, and is a composite structural steel plate consisting of steel plates 1 and 1' and a polymer substance 3.
この複合鋼板の使用に際しては、機械構造物の下敷とす
る際に、あるいは床用として使用する際に、機械構造物
の荷重や床板上を通過する人、車などの移動負荷荷重に
対して、後述する如く、設置する際の強度の方向性を考
えることが不必要となる。When using this composite steel plate as an underlay for a mechanical structure or as a floor, it must be able to withstand the load of the mechanical structure and the moving loads of people, cars, etc. passing over the floor plate. As will be described later, it is no longer necessary to consider the direction of strength during installation.
凹形溝部の形状は角溝型でも、７字型やＵ字型でも特に
制限はしないが、深さはｌ鶴以上あることが望ましく、
又凹部の面積は凸部の面積と同等か又はそれより大きい
方がよい。The shape of the concave groove may be square groove, 7-shape, or U-shape, but there is no particular restriction on the shape, but it is desirable that the depth is at least l.
Further, it is preferable that the area of the concave portion be equal to or larger than the area of the convex portion.
なお凸部の形状についても凹部の場合と同様に、任意の
形状を必要に応じてとることが出来る。各々の鋼板で、
縞状凹凸部のある面の反対側の面は、平滑でも、縞目模
様の突起をつけたものでも、又その他の形状の突起をつ
けたものでも差支えなく、特に床用として使用される場
合はすべり止め用として若干の凸起を設けたものが望ま
しいこともある。Note that the shape of the convex portion can be any shape as required, similar to the case of the concave portion. With each steel plate,
The surface opposite to the surface with striped irregularities may be smooth, have striped protrusions, or have protrusions of other shapes, especially when used for floors. It may be desirable to have some protrusions to prevent slipping.
鋼板の材質は特に規定しないが、通常の構造用鋼板で十
分であるが、強度上特に要求される場合は高張力鋼板の
使用も望ましい。The material of the steel plate is not particularly specified, but ordinary structural steel plates are sufficient, but if special strength is required, it is also desirable to use high-tensile steel plates.
鋼板の凹部と２枚の鋼板のすき間に充填される高分子物
質としては、例えば酢酸ビニール、塩化ビニール、ブチ
ルゴム、エポキシ樹脂、アクリルあるいは酢酸ビニール
・エチレン共重合体、スチロールアクリル共重合体など
の熱可塑性樹脂で、損失係数０．１以上のものが用いら
れる。Examples of polymeric substances filled in the recesses of the steel plate and the gap between the two steel plates include vinyl acetate, vinyl chloride, butyl rubber, epoxy resin, acrylic, vinyl acetate-ethylene copolymer, styrene-acrylic copolymer, etc. A plastic resin with a loss coefficient of 0.1 or more is used.
損失係数ηは下記（１１式に示す計算式にて与えられる
。The loss coefficient η is given by the calculation formula shown below (Equation 11).
ここで、Ａｏは初期振巾、Ａｎはｎ番目の振巾、ｎは波
の数を示す。この損失係数を本発明で０．１以上と規定
したのは、それ未満の材料では十分な性能を持つ制振鋼
板は得られないからである。Here, Ao is the initial amplitude, An is the nth amplitude, and n is the number of waves. The reason why this loss coefficient is defined as 0.1 or more in the present invention is that a damping steel plate with sufficient performance cannot be obtained with a material having a lower value.
鋼板素材として縞状の凹凸を有する鋼板を使用する理由
は、高分子物質と鋼板との接触面積が大きくなり、すり
変形が増加し、それだけ振動吸収能力が大きくなること
及び断面形状係数を大きくし、下敷き又は床板としての
耐重量強度を大きくするためである。The reason why a steel plate with striped irregularities is used as a steel plate material is that the contact area between the polymer substance and the steel plate increases, which increases wear deformation, which increases the vibration absorption capacity and increases the cross-sectional shape factor. This is to increase the weight-bearing strength as an underlay or floorboard.
以下実施例について説明する。鋼板素材として、地厚１
．６Ｍに２．０調の高さでピッチが１０ｍｎ＋の縞のあ
る市販の縦縞鋼板を、凹凸面が向き合うように、又縞が
互に直角に交差するように合わせ、その間隙にウレタン
樹脂（損失係数１．０以上）を挿入し、プレスによって
縞の凸部同志の間隙が１．０柵になる迄圧下し、その後
乾燥することにより樹脂を固相化した。Examples will be described below. As a steel plate material, the ground thickness is 1
．． A commercially available vertical striped steel plate with stripes of 6M height and pitch of 10mm+ is placed so that the uneven surfaces face each other and the stripes intersect each other at right angles, and the gaps are filled with urethane resin (loss A coefficient of 1.0 or more) was inserted, and the pressure was reduced by pressing until the gap between the convex portions of the stripes became 1.0, and then the resin was solidified by drying.
制振性の測定は、振動減衰法により、周波数１３４０〜
１４６０Ｈｚで温度を種々変化させて行ったものと、室
温で周波数を種々変えて行ったものの２種類行った。Vibration damping performance was measured using the vibration damping method at frequencies of 1340~
Two types of experiments were conducted: one at 1460 Hz at various temperatures and one at room temperature at various frequencies.
第２図にその結果を示した。比較材は通常の鋼板製で、
その損失係数は２０℃で３．６Ｘ１０−’であるが、本
発明の制振鋼板は各温度において振動減衰率が大きく向
上している。Figure 2 shows the results. The comparison material is made of ordinary steel plate.
The loss coefficient is 3.6X10-' at 20°C, and the damping steel plate of the present invention has a significantly improved vibration damping rate at each temperature.
第３図は本発明の制振鋼板の機械的強度の方向性の効果
の例を示す図である。第３図Ａ及びＢは比較例で、縞方
向を互に平行に配して合わせた例であり、第３図Ｃは本
発明の制振鋼板で、縞方向を互に直角に配して合せた例
である。比較例の第３図Ａは縦方向のみの曲げ強度で１
３５〜１４５ｋｇ ｆ ／ ｃｌｌｌであるが、第３図
Ｂの如く比較例の横方向のみの曲げ強度は９０〜１００
ｋｇｆ／ｃｉで、比較例では縦方向と横方向の曲げ強
度に差が大きい。FIG. 3 is a diagram showing an example of the effect of the directionality of mechanical strength of the damping steel plate of the present invention. Figures 3A and B are comparative examples in which the striped directions are arranged parallel to each other, and Figure 3C is a damping steel plate of the present invention, in which the striped directions are arranged at right angles to each other. This is a combined example. Figure 3 A of the comparative example has a bending strength of 1 in the vertical direction only.
35 to 145 kg f/clll, but as shown in Figure 3B, the bending strength only in the lateral direction of the comparative example is 90 to 100.
kgf/ci, there is a large difference in bending strength in the longitudinal direction and in the lateral direction in the comparative example.
本発明の第３図Ｃは、縦方向、横方向の何れの方向の曲
げ強度も１２５〜１３５ ｋｇｆ／ｃｄで、本発明によ
る凹凸縞を直角方向に合せた制振鋼板の方が、縦、横方
向の曲げ強度に差が少なく、使用上の点から有利である
と判断された。Figure 3C of the present invention shows that the bending strength in both the longitudinal and lateral directions is 125 to 135 kgf/cd, and that the vibration damping steel plate in which the uneven stripes according to the present invention are aligned in the right angle direction has a bending strength of 125 to 135 kgf/cd in both the longitudinal and lateral directions. There was little difference in bending strength in the lateral direction, and it was judged to be advantageous from a usage point of view.
以上のとおり、本発明は縞状の凹凸を設けた２枚の鋼板
を、その縞方向を互に直角に凹凸が向い合うように合わ
せ、それらが形成する間隙に損失係数０．１以上の高分
子物質を夾在せしめたため、本発明の制振鋼板は振動減
衰率が大きく向上し更に機械的性質の方向性の小さい制
振材であり、使用上の効果は大きい。As described above, the present invention involves aligning two steel plates provided with striped unevenness so that the striped directions are perpendicular to each other so that the unevenness faces each other, and creating a gap with a loss coefficient of 0.1 or more. Since the vibration-damping steel sheet of the present invention is impregnated with molecular substances, it is a vibration-damping material that has a greatly improved vibration damping rate and has a small directionality of mechanical properties, and is highly effective in use.
第１図Ａは本発明の制振鋼板を構成する、縞状の凹凸を
持つ一枚の鋼板の斜視図、
第１図Ｂは縞状凹凸を互に直角になるよう向い合せて、
その間隙に損失係数０．１以上の高分子物質を夾在せし
めた本発明の制振鋼板の例の斜視図、第２図は機械イン
ピーダンス法によって測定した本発明の制振鋼板と比較
例の損失係数を示す図、第３図は、本発明の制振鋼板の
機械的強度の方向性の効果の例を示す図、
である。
１．１’ ：鋼板、２：隙間、３：高分子物質。
（Ａ）
（Ｂ）
第１図
温 度 （Ｃ）
比較材： ３．６ ｘ １０ ａｔ ２０”Ｃ第２
図Fig. 1A is a perspective view of a steel plate with striped irregularities constituting the vibration damping steel plate of the present invention, and Fig. 1B shows the striped irregularities facing each other at right angles.
A perspective view of an example of a damping steel plate of the present invention in which a polymer substance with a loss coefficient of 0.1 or more is included in the gap, and Fig. 2 shows a vibration damping steel plate of the present invention and a comparative example measured by the mechanical impedance method. FIG. 3 is a diagram showing the loss coefficient, and FIG. 3 is a diagram showing an example of the effect of the directionality of the mechanical strength of the damping steel plate of the present invention. 1.1': Steel plate, 2: Gap, 3: Polymer material. (A) (B) Figure 1 Temperature (C) Comparison material: 3.6 x 10 at 20”C 2nd
figure
Claims (1)
直角に凹凸が向い合うように合わせ、それらが形成する
間隙に損失係数０．１以上の高分子物質を夾在させるこ
とによって成る、制振鋼板。Two steel plates provided with striped unevenness are aligned so that the striped directions are perpendicular to each other so that the unevenness faces each other, and a polymer substance with a loss coefficient of 0.1 or more is included in the gap formed between them. A vibration-damping steel plate made of
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32835587A JPH01171855A (en) | 1987-12-26 | 1987-12-26 | Damping steel plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP32835587A JPH01171855A (en) | 1987-12-26 | 1987-12-26 | Damping steel plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01171855A true JPH01171855A (en) | 1989-07-06 |
Family
ID=18209320
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP32835587A Pending JPH01171855A (en) | 1987-12-26 | 1987-12-26 | Damping steel plate |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01171855A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003098986A1 (en) * | 2002-05-16 | 2003-11-27 | Canon Kabushiki Kaisha | Armor member, retaining member, and image forming apparatus |
| JP2009123871A (en) * | 2007-11-14 | 2009-06-04 | Panasonic Corp | Case mold capacitor |
-
1987
- 1987-12-26 JP JP32835587A patent/JPH01171855A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003098986A1 (en) * | 2002-05-16 | 2003-11-27 | Canon Kabushiki Kaisha | Armor member, retaining member, and image forming apparatus |
| JP2009123871A (en) * | 2007-11-14 | 2009-06-04 | Panasonic Corp | Case mold capacitor |
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