DAMPING STRUCTURE AND DAMPING WASHER

PROBLEM TO BE SOLVED: To provide a damping structure capable of reducing vibration transmittable from one frame to another frame fixed to each other.SOLUTION: A sub-frame 6 and a main frame 7 are disposed in opposition to each other and are fixed with a screw member 5. An inner cylinder 2 restrictin...

Full description

Saved in:
Bibliographic Details
Main Authors KASAMA HIROKI, TAKAHATA KAZUAKI, ENDO RIE, SHIBATA KAZUMASA, YOKOYAMA KATSUNORI, YAMAMOTO MASAMICHI
Format Patent
LanguageEnglish
Japanese
Published 06.10.2016
Subjects
BLASTING
DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS ORMACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS,CLIPS, WEDGES, JOINTS OR JOINTING
ENGINEERING ELEMENTS AND UNITS
GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS
HEATING
LIGHTING
MEANS FOR DAMPING VIBRATION
MECHANICAL ENGINEERING
SHOCK-ABSORBERS
SPRINGS
THERMAL INSULATION IN GENERAL
WEAPONS
Online AccessGet full text

Cover

More Information
Summary:PROBLEM TO BE SOLVED: To provide a damping structure capable of reducing vibration transmittable from one frame to another frame fixed to each other.SOLUTION: A sub-frame 6 and a main frame 7 are disposed in opposition to each other and are fixed with a screw member 5. An inner cylinder 2 restricting an interval, is disposed between the frames. A damping material 1 is disposed while surrounding the inner cylinder 2, and the damping material 1 is held in a state of being held and compressed by the sub-frame 6 and the main frame 7. The damping material 1 is a vibration energy absorption member having a loss coefficient by a mechanical impedance method of 0.05 or more in a compressed state. By holding the inner cylinder 2 of high rigidity between the frames, vibration energy for vibrating the sub-frame 6 is concentrated. As the damping material 1 is closely kept into contact with both of the inner cylinder 2 and the frame, friction caused by distortion easily generates, and vibration energy can be efficiently converted into heat energy. As a result, vibration of the frame is reduced, and radiation noise caused by the vibration can be reduced.SELECTED DRAWING: Figure 1 【課題】互いに固定されたうちの一方のフレームから他方のフレームへと伝搬され得る振動を低減可能な制振構造体の提供。【解決手段】サブフレーム６とメインフレーム７とは対向配置され、ねじ部材５で固定される。フレーム間には、間隔を規制する内筒２が設けられる。内筒２を取り囲むように制振材１が設けられ、制振材１はサブフレーム６とメインフレーム７とに挟まれて圧縮された状態で保持される。制振材１は、圧縮された状態で機械インピーダンス法による損失係数が０．０５以上の振動エネルギー吸収部材である。剛性の高い内筒２をフレーム間に挟み込むことでサブフレーム６を振動させる振動エネルギーを集中させる。制振材１は内筒２とフレームとの双方に密着されることから、歪みによる摩擦が生じやすく、振動エネルギーを熱エネルギーに効率よく変換し得る。その結果、フレームの振動が低減して振動に起因する放射音は低減される。【選択図】図１
Bibliography:Application Number: JP20150057877