Development of an Active Noise Reduction System to Improve the Residential Sound Environment around a portal of High Speed Train Tunnel

开发主动降噪系统改善高铁隧道出入口周边住宅声环境

• 批准号: 16510070
• 负责人: MATSUBAYASHI Katsushi
• 金额: $ 1.73万
• 依托单位: Tokyo National College of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2004
• 资助国家: 日本
• 起止时间: 2004 至 2005
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-16510070/
• 关键词: Compression Wave; Micro Pressure Wave; Tunnel; Active Silencer; Low Frequency Noise; High Speed Train; トンネル微気圧波; 鉄道騒音; 低周波騒音

Because of the increase of cross-sectional area of the train like double decker Shinkansen and the speed-up of it, noises are emitted from the portals of tunnels. One is MPW (Micro-Pressure Wave) and the other is LFN (Low Frequency Noise). The big MPW has a sound of "Don" like distant thump of a cannon and annoys people. LFN vibrates windows or doors of residents around the tunnel exit. They worsen residential sound environment.In this study, active noise control system for MPW and LFN was developed. The system can adapt to the various conditions, i.e., shape and speed of the train, inner structure of the tunnel and so on. In order to reduce the level of MPW or LFN, a control wave, that is positive pressure, is generated at a side-branch and is superposed on the incident wave front of a compression wave or LFN propagating through the tunnel.The active noise control with positive pressure described in this study is novel method and has higher control stability and feasibly rating compared with existing method. In addition, this technique reduces the dimension of the system as well as the cost of it.By the year of 2004, numerical analysis of this active noise control was done and the scale model experiments were carried out and both results agreed well.In the year of 2005, the practical use of this active control system for MPW was discussed and the system was applied to the reduction of LFN. To generate a control wave to superpose on LFN in a model tunnel, the software to control servo-valve was improved and the air tank capacity was increased. The generation of LFN was succeeded and it was proved that LFN can be reduced technically by the superposition of control wave which has opposite phase.

由于双层德克尔新干线等列车的横截面积的增加以及其速度的提高，从隧道的入口处发出噪音。一个是MPW（微压力波），另一个是LFN（低频噪声）。大MPW发出“Don”的声音，就像远处大炮的重击声，让人恼火。LFN振动隧道出口附近居民的窗户或门。本文针对MPW和LFN的特点，研制了有源噪声控制系统。该系统可以适应各种条件，即，列车的形状和速度，隧道的内部结构等。为了降低MPW或LFN的水平，控制波，即正压，是在一边产生的-本文提出的正压主动噪声控制方法是一种新颖的方法，具有较高的控制稳定性和可行性与现有方法相比。2004年，对该主动噪声控制系统进行了数值分析，并进行了缩尺模型实验，两者结果吻合较好，2005年，对该主动噪声控制系统在MPW中的实际应用进行了探讨，并将其应用于LFN的抑制。为了在模型风洞中产生叠加在LFN上的控制波，对伺服阀控制软件进行了改进，并增加了气罐容量。实验成功地产生了LFN，并证明了利用反相控制波的叠加技术可以有效地减小LFN。

项目成果

Reduction of Micro-Pressure Wave by Active Control of Propagating Compression Wave in Tunnel

主动控制隧道内压缩波传播减少微压力波

• 发表时间: 2005
• 期刊: Journal of Institute of Noise Control Engineering of JAPAN 2-1
• 作者: Katsushi Matsubayashi;Toshifumi Kosaka;Toshiya Kitamura;Shinji Yamada;Alan Vardy;Jim Brown
• 通讯作者: Jim Brown

Reduction of Micro-Pressure Wave by Active Control of Propagating Compression Wave in Shinkansen Tunnel

新干线隧道压缩波传播主动控制减少微压力波

• 发表时间: 2005
• 期刊: Doctoral Dissertation of Yamanashi University
• 作者: 射手矢勝真;佐々木洋;岩崎光伸;伊藤征司郎;市原潤子;M.Okubo;Katsushi Matsubayashi
• 通讯作者: Katsushi Matsubayashi

縮進行波アクティブ制御によるトンネル微気圧波消音

收缩行波主动控制隧道微压力波消音

• 发表时间: 2005
• 期刊: 日本機械学会流体工学部門講演会講演論文集 OS12-1
• 作者: 松林勝志;小坂敏文;北村敏也;Alan VARDY;Jim BROWN
• 通讯作者: Jim BROWN

トンネル内圧縮進行波アクティブ制御による微気圧波消音

隧道压缩行波主动控制微压力波消音

• 发表时间: 2005
• 期刊: 日本騒音制御工学会誌 29巻1号
• 作者: 松林勝志;小坂敏文;北村敏也;山田伸志;Alan Vardy;Jim Brown
• 通讯作者: Jim Brown

Reduction of Micro-Pressure Wave by Active Control of Propagating Compression Wave in High Speed Train Tunnel

• DOI: 10.1260/0263-0923.23.4.259
• 发表时间: 2004-12
• 期刊: Journal of Low Frequency Noise, Vibration and Active Control
• 作者: K. Matsubayashi;T. Kosaka;Toshiya Kitamura;S. Yamada;A. Vardy;Jim Brown