Prediction of Biot Parameters for Fibrous Sound Absorbing Materials

繊維体吸音材料のBiot パラメータの推定

From 2016 the outside noise regulation becomes severe. And from 2020 fuel efficiency standards will become strict too. However, it is extremely difficult to achieve both further weight reduction and higher performance of soundproofing properties. Therefore, the authors focused on the material itself of the fibrous porous material. In the development of soundproof materials, prediction method of the acoustic properties is important. The purpose of this study is to formulate the relationship between fibrous characteristic and Biot parameters. Therefore, the authors prepared 60 samples with different fiber diameter and bulk density and measured Biot parameters of them.吸音材の素材開発において、繊維特性から音響性能を予測する技術が重要である。本研究の目的は繊維体吸音材の繊維特性とBiotパラメータの関係を定式化することである。検討にあたり、繊維径や密度が異なる無機系繊維体試料を多数作製し、Biotパラメータの実測を行い実験式を構築した。

• Record URL:
  • https://doi.org/10.11351/jsaeronbun.49.787
• Record URL:
  • http://scholar.google.com/scholar_lookup?title=Prediction%20of%20Biot%20Parameters%20for%20Fibrous%20Sound%20Absorbing%20Materials&author=K.%20Misaji&author=M.%20Ishii&author=A.%20Takahashi&author=T.%20Miki&author=I.%20Fujisawa&author=D.%20Ando&publication_year=2016
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/02878321
• Authors:
  • Misaji, Kazuhito
  • Ishii, Masaki
  • Takahashi, Ayumi
  • Miki, Tatsuro
  • Fujisawa, Ikuma
  • Ando, Daisuke
• Publication Date: 2018-7

Language

• English
• Japanese

Media Info

• Media Type: Digital/other
• Features: Figures; References; Tables;
• Pagination: pp 787-792
• Serial:
  • Transactions of Society of Automotive Engineers of Japan
  • Volume: 49
  • Issue Number: 4
  • Publisher: Society of Automotive Engineers of Japan
  • ISSN: 0287-8321
  • EISSN: 1883-0811
  • Serial URL: https://www.jstage.jst.go.jp/browse/jsaeronbun
• Publication flags:

  Open Access (libre)

Subject/Index Terms

• TRT Terms: Acoustic properties; Automotive materials; Damping (Engineering); Fibers; Noise; Porous materials; Simulation; Vibration
• Uncontrolled Terms: Biot's theory
• Subject Areas: Environment; Highways; Materials; Vehicles and Equipment;

Filing Info

• Accession Number: 01679969
• Record Type: Publication
• Source Agency: Japan Science and Technology Agency (JST)
• Files: TRIS, JSTAGE
• Created Date: Aug 31 2018 1:45PM