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WO2008155981A1 - 吸音体 - Google Patents

吸音体 Download PDF

Info

Publication number
WO2008155981A1
WO2008155981A1 PCT/JP2008/059745 JP2008059745W WO2008155981A1 WO 2008155981 A1 WO2008155981 A1 WO 2008155981A1 JP 2008059745 W JP2008059745 W JP 2008059745W WO 2008155981 A1 WO2008155981 A1 WO 2008155981A1
Authority
WO
WIPO (PCT)
Prior art keywords
sound absorbing
absorbing layer
elastic modulus
storing elastic
absorbing device
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.)
Ceased
Application number
PCT/JP2008/059745
Other languages
English (en)
French (fr)
Inventor
Masao Sumita
Shuichi Akasaka
Wataru Minoshima
Naganori Masubuchi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Riken Technos Corp
Original Assignee
Riken Technos Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Riken Technos Corp filed Critical Riken Technos Corp
Publication of WO2008155981A1 publication Critical patent/WO2008155981A1/ja
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/172—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using resonance effects

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
  • Building Environments (AREA)

Abstract

　本発明は、貫通孔が形成された枠体と、貫通孔の一方の開口を覆う膜振動型吸音材を有する吸音体であって、膜振動型吸音材が、複数の吸音層が一体化された積層体からなり、前記複数の吸音層のうち最も貯蔵弾性率が高い吸音層を第１の吸音層、最も貯蔵弾性率が低い吸音層を第２の吸音層とし、前記第１の吸音層の貯蔵弾性率をＥ’１、前記第２の吸音層の貯蔵弾性率をＥ’２とするとき、Ｅ’１／Ｅ’２≧３であり、かつ前記積層体において第1の吸音層から外側に向かって、各吸音層の貯蔵弾性率が漸次減少している吸音体を提供する。
PCT/JP2008/059745 2007-06-20 2008-05-27 吸音体 Ceased WO2008155981A1 (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007162518A JP5080877B2 (ja) 2007-06-20 2007-06-20 吸音体
JP2007-162518 2007-06-20

Publications (1)

Publication Number Publication Date
WO2008155981A1 true WO2008155981A1 (ja) 2008-12-24

Family

ID=40156140

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/059745 Ceased WO2008155981A1 (ja) 2007-06-20 2008-05-27 吸音体

Country Status (2)

Country Link
JP (1) JP5080877B2 (ja)
WO (1) WO2008155981A1 (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017063317A1 (en) * 2015-10-14 2017-04-20 Audio Klaraty Limited Laminated glass ＆ laminated acrylic loudspeaker enclosure
CN107408378A (zh) * 2015-02-27 2017-11-28 富士胶片株式会社 防音结构及防音结构的制造方法

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010237418A (ja) * 2009-03-31 2010-10-21 Hiroshima Prefecture 吸音材
WO2018151067A1 (ja) 2017-02-14 2018-08-23 富士フイルム株式会社 防音構造体
CN113302087B (zh) * 2019-01-11 2024-04-09 富士胶片株式会社 电动车用消音部件
CN115497443B (zh) * 2022-10-12 2025-03-21 广州大学 一种螺旋式通道微穿孔吸声装置

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000053731A (ja) * 1998-06-04 2000-02-22 Mitsubishi Motors Corp 制振性樹脂組成物及び該樹脂組成物を用いた構造用制振性樹脂成形品
JP2000163078A (ja) * 1998-11-25 2000-06-16 Chugoku Rubber Kogyo Kk 制振材
JP2001247626A (ja) * 2000-03-06 2001-09-11 Chisso Corp 制振性ポリプロピレン
JP2002220890A (ja) * 2001-01-26 2002-08-09 Sekisui Chem Co Ltd 防音間仕切り
JP2005232465A (ja) * 1995-05-12 2005-09-02 Huntsman Internatl Llc 新規な軟質ポリウレタンフォーム
JP2006283847A (ja) * 2005-03-31 2006-10-19 Kyowa Ltd 遮音カバー及び遮音カバー付配管体
WO2006118160A1 (ja) * 2005-04-27 2006-11-09 Prime Polymer Co., Ltd. プロピレン系樹脂押出発泡複合体
JP2006308679A (ja) * 2005-04-26 2006-11-09 Tokyo Institute Of Technology 吸音周波数の制御方法、および吸音構造体
JP2006330570A (ja) * 2005-05-30 2006-12-07 Tokai Rubber Ind Ltd 制振性を備えた防音カバーとその製造方法

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005232465A (ja) * 1995-05-12 2005-09-02 Huntsman Internatl Llc 新規な軟質ポリウレタンフォーム
JP2006089752A (ja) * 1995-05-12 2006-04-06 Huntsman Internatl Llc 新規な軟質ポリウレタンフォーム
JP2000053731A (ja) * 1998-06-04 2000-02-22 Mitsubishi Motors Corp 制振性樹脂組成物及び該樹脂組成物を用いた構造用制振性樹脂成形品
JP2000163078A (ja) * 1998-11-25 2000-06-16 Chugoku Rubber Kogyo Kk 制振材
JP2001247626A (ja) * 2000-03-06 2001-09-11 Chisso Corp 制振性ポリプロピレン
JP2002220890A (ja) * 2001-01-26 2002-08-09 Sekisui Chem Co Ltd 防音間仕切り
JP2006283847A (ja) * 2005-03-31 2006-10-19 Kyowa Ltd 遮音カバー及び遮音カバー付配管体
JP2006308679A (ja) * 2005-04-26 2006-11-09 Tokyo Institute Of Technology 吸音周波数の制御方法、および吸音構造体
WO2006118160A1 (ja) * 2005-04-27 2006-11-09 Prime Polymer Co., Ltd. プロピレン系樹脂押出発泡複合体
JP2006330570A (ja) * 2005-05-30 2006-12-07 Tokai Rubber Ind Ltd 制振性を備えた防音カバーとその製造方法

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107408378A (zh) * 2015-02-27 2017-11-28 富士胶片株式会社 防音结构及防音结构的制造方法
EP3264412A4 (en) * 2015-02-27 2018-05-30 FUJIFILM Corporation Sound insulation structure and method for manufacturing sound insulation structure
US10099317B2 (en) 2015-02-27 2018-10-16 Fujifilm Corporation Soundproof structure and soundproof structure manufacturing method
CN107408378B (zh) * 2015-02-27 2021-01-12 富士胶片株式会社 防音结构及防音结构的制造方法
WO2017063317A1 (en) * 2015-10-14 2017-04-20 Audio Klaraty Limited Laminated glass ＆ laminated acrylic loudspeaker enclosure
US10397695B2 (en) 2015-10-14 2019-08-27 Audio Klaraty Limited Laminated glass and laminated acrylic loudspeaker enclosure

Also Published As

Publication number Publication date
JP2009003089A (ja) 2009-01-08
JP5080877B2 (ja) 2012-11-21

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