Active Control System for Insulating Floor Impulse Noise

隔离地板脉冲噪声的主动控制系统

• 批准号: 13555067
• 负责人: AKISHITA Sadao
• 金额: $ 8.64万
• 依托单位: Ritsumeikan University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2001
• 资助国家: 日本
• 起止时间: 2001 至 2003
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-13555067/
• 关键词: Floor Impact Noise; Active Noise Control; Sound Insulating Panel; Piezo-electric Actuator; Joint of Ceramic and Metal; Spark Plasma Sintering; Insert Material; インサート材; アクティブコントロール; 積層型圧電素子アクチュエータ; フィードフォワード制御システム; バイモルフ圧電素子アクチュエータ; 金属接合; フィード

Following results are obtained on the active panel systems with active control for insulating floor impulse noise.(1) Development of reinforced actuator of piezoelectric element;The joint between lead zirconate titanate (PZT) as piezoelectric element and aluminum as reinforcement was investigated by developing the Spark Plasma Sintered(SPS) joining method, utilizing the Sn-3.5Ag alloy powder as an insert material. The joining samples are produced by SPS at 473K varying the time for 300s to 7.2ks. The maximum shearing stress of 25MPa was obtained. The sintering time increased with increasing shearing stress and decreasing insert materials thickness and electric resistivity.(2) Construction of the active panel systems with the feed back control;The active control system model with the panel size of 0.9[m] by 0.9[m] was constructed via intermediate models with the panel size of 0.4[m] by 0.4[m] and 0.6[m] by 0.6[m]. Finally the practical model with bimorph-piezoelectric actuators as actuators were developed showing the reduction of the heavy weight floor impact noise by 10[dB] at the lowest natural vibration mode of the plate.(3) Development of the new actuator system with piezoelectric element of stack type was tried at aiming the compensation of small displacement for the bimorph type, but the production was not successful for the poor precision of the machining of the structure.

(1)压电元件增强型执行器的研制：采用放电等离子烧结(SPS)连接方法，以锡-3.5Ag合金粉末为镶嵌材料，研究了以钛酸铅(PZT)为压电元件和铝为增强体的复合接头。连接样品是由SPS在473K下产生的，时间从300s到7.2K不等。得到的最大剪应力为25 Mpa。带反馈控制的主动板系统的构建：通过板材尺寸为0.4[m]×0.4[m]和0.6[m]×0.6[m]的中间模型构建板材尺寸为0.9[m]×0.9[m]的主动控制系统模型。最后建立了以双压电作动器为执行器的实用模型，在板的最低固有振型下，可将重载地板冲击噪声降低10[分贝]。(3)针对双压电作动器的小位移补偿问题，尝试开发了叠层式压电元件作动器系统，但由于结构加工精度较低，制作不成功。

项目成果

Spark Plasma Sintered Joining between Lead Zirconate Titanate and Aluminum with Sn-3.5Ag Alloy Powder as an Insert Material

以Sn-3.5Ag合金粉末为嵌入材料的锆钛酸铅与铝的火花等离子烧结连接

• 发表时间: 2005
• 期刊: ZAIRYOU, Journal of The Society of Materials Science Japan vol.54, No.5(in print)
• 作者: Hiroshi FUJIWARA;Mie TOKUHARA;Kei AMEYAMA;Sadao AKISHITA
• 通讯作者: Sadao AKISHITA

秋下貞夫, 松本智司, 三谷祐一朗, 奥平有三, 加藤好志: "床衝撃音のアクティブコントロール (バイモルフ圧電素子によるフィードバックシステム)"日本機械学会第12回環境総合シンポジウム2002講演論文集. No.02-14. 123-126 (2002)

Sadao Akishita、Satoshi Matsumoto、Yuichiro Mitani、Yuzo Okudaira、Yoshishi Kato：“地板冲击噪声的主动控制（使用双压电晶片压电元件的反馈系统）”日本机械工程师学会 2002 年第 12 届环境研讨会论文集第 02 期 -。 14. 123-126 (2002)

[N75]Active Control of Floor Impulse Noise for Condominiums

[N75]公寓楼层脉冲噪声的主动控制

• 发表时间: 2003
• 期刊: Proceedings of Inter-noise 2003,Jeju, Korea, August 25-28,2003
• 作者: S.Akishita;K.Ameyama;A.Mitani;S.Ito
• 通讯作者: S.Ito

Active Control system of Floor Impulse Noise

地板脉冲噪声主动控制系统

• 发表时间: 2002
• 期刊: Proceedings of ACTIVE 2002,ISVR, Southampton, UK,2002 July 15-17
• 作者: S.Akishita;S.Matsumoto;Y.Mitani
• 通讯作者: Y.Mitani

秋下, 三谷, 奥平, 加藤: "床衝撃音のアクティブコントロール(バイモルフ圧電素子によるフィードバックシステム)"第12回環境工学総合シンポジウム. (予定). (2002)

Akishita、Mitani、Okuhira、Kato：“地板冲击噪声的主动控制（使用双压电晶片元件的反馈系统）”第 12 届环境工程研讨会（计划）。