Relationship between Sound Absorption Property and Microscopic Structure Determined by X-ray Computed Tomography in Urethane Foam Used as Sound Absorption Material for Automobiles

この論文にアクセスする

この論文をさがす

著者

抄録

Recently, the application of porous soundproof materials to automobiles is changing from the use of sound insulation materials to the use of sound absorption materials. A method for attaining high absorption performance in the low-frequency region without increasing the material weight is thus needed. We investigated the use of X-ray computed tomography (CT) scanning for investigating the microscopic structure of soft urethane foam, a low specific gravity resin material, in a nondestructive manner. Our testing reveals that it is an effective tool for observing the microscopic organizational structure of a low specific gravity resin material and that the cell size of urethane foam, as measured by X-ray CT, affects the sound absorption characteristics. It also shows that reducing cell size shifts the peak frequency of the sound absorption coefficient downward.

収録刊行物

  • Materials transactions

    Materials transactions 49(2), 345-351, 2008-02-01

    公益社団法人 日本金属学会

参考文献:  16件中 1-16件 を表示

  • <no title>

    ATTALA Y.

    The Effect of Processing Parameters on the Acoustical Efficiency of Open-Cell PMMA Materials, 2006 SAE World Congress, 2006

    被引用文献1件

  • <no title>

    FU J.

    Journal of Cellular Polymers 24, 1-20, 2005

    被引用文献1件

  • <no title>

    ATTLA Y.

    Canadian Acoustics 33, 3-10, 2005

    被引用文献1件

  • <no title>

    KOLSTAD K.

    Aquaculture 229, 255-264, 2004

    被引用文献1件

  • <no title>

    NEETHIRAJAN S.

    Biosystems Engineering 94, 545-555, 2006

    被引用文献1件

  • <no title>

    SINKA I. C.

    International Journal of Pharmaceutics 271, 215-224, 2004

    被引用文献1件

  • <no title>

    KVAME T.

    Small Ruminant Research 65, 242-250, 2006

    被引用文献1件

  • <no title>

    VONTOBEL P.

    Physica B 385-386, 475-480, 2006

    被引用文献1件

  • <no title>

    DELANY M. E.

    Applied Acoustics 3, 105-116, 1970

    被引用文献1件

  • <no title>

    BERANEK L. L.

    Acoustical Properties of Porous Materials, in Sound and Vibration Control, 1971

    被引用文献1件

  • <no title>

    KUTTRUFF H.

    Room Acoustics, 1991

    被引用文献1件

  • <no title>

    ALLARD J. F.

    Propagation of Sound in Porous Media, Modelling Sound Absorbing Materials, 1993

    被引用文献1件

  • <no title>

    KOPILIK J. D. L.

    J. Fluid mechanics 176, 279-402, 1987

    被引用文献1件

  • <no title>

    BIES D. A.

    Appl. Acoustics 13, 357-391, 1980

    被引用文献3件

  • <no title>

    ALLARD J. F.

    Journal of Sound and Vibration 132, 51-60, 1989

    被引用文献1件

被引用文献:  1件中 1-1件 を表示

各種コード

  • NII論文ID(NAID)
    10021144291
  • NII書誌ID(NCID)
    AA1151294X
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    13459678
  • NDL 記事登録ID
    9354620
  • NDL 雑誌分類
    ZP41(科学技術--金属工学・鉱山工学)
  • NDL 請求記号
    Z53-J286
  • データ提供元
    CJP書誌  CJP引用  NDL  J-STAGE 
ページトップへ