主动共振式消声器的性能优化研究
宋泽芸1,林松*,2,王瀚超2,江竞宇2
(1.同济大学 中德学院,上海 201804;2.同济大学 机械与能源工程学院,上海 201804)
摘要:以一种基于弹簧-质量系统的主动共振式消声器为研究对象,通过引入相位滞后补偿环节实现控制回路的改进,根据给定消声性能指标确定补偿环节参数并编写了用于确定参数的程序。以方形截面管道模型为例,在将系统的自激啸叫限制在6 dB前提下,利用上述方法对控制回路进行改进后,理论上至少可以使管道下游30~1000 Hz频段的平均消声量由1.7 dB增至3.0 dB,这表明,只需在回路中添加一个低阶滤波器即可改善系统消声性能。
关键词:主动共振式消声器;消声性能;相位滞后补偿
中图分类号:TB535 文献标志码:A doi:10.3969/j.issn.1006-0316.2020.12.010
文章编号:1006-0316 (2020) 12-0068-06
Performance Optimization Study of an Active Resonance Muffler
SONG Zeyun1,LIN Song2,WANG Hanchao2,JIANG Jingyu2
( 1.Sino-German School for Postgraduate Studies, Tongji University, Shanghai 201804, China; 2.School of Mechanical Engineering, Tongji University, Shanghai 201804, China )
Abstract:In this paper, an active resonance muffler based on a spring-mass system is investigated. Goal is to modify the control loop using a phase-lag compensation so as to improve the attenuation performance. A program scheme for the determination of the corresponding parameters is proposed in line with the desired performance criteria. Taking the duct model with rectangular cross-section used in this study as an example, with the constraint of limiting the howling of the system to 6 dB, the average attenuation downstream of the duct over a frequency range of 30~1000 Hz can be improved from 1.7 dB to 3.0 dB by modifying the control loop with the method, which indicates that the system attenuation performance can be improved by adding a low-order filter to the loop.
Key words:active resonatoce muffler;attenuation performance;phase-lag compensation;howling
———————————————
收稿日期:2020-07-07
作者简介:宋泽芸(1995-),山东东营人,硕士,主要研究方向为信号处理。*通讯作者:林松(1957-),男,四川广元人,工学博士(德),教授,主要研究方向为产品研发方法及其智能设计、虚拟产品生成及其数字孪生和智能装置及其人及协调和技术可靠性及其安全设计,E-mail: slin@tongji.edu.cn。
 

 

设为首页  |  加入收藏    |   免责条款
《机械》杂志版权所有     Copyright©2008-2012 Jixiezazhi.com All Rights Reserved 

  电话:028-85925070    传真:028-85925073    E-mail:jixie@vip.163.com

地址:四川省成都锦江工业开发区墨香路48号   邮编:610063

蜀ICP备08103512号

Powered by PageAdmin CMS