中国机械工程2025，Vol.36Issue(9)：1961-1967,7.DOI:10.3969/j.issn.1004-132X.2025.09.007
基于电液类比原理的水导激光水压脉动衰减器滤波特性
Filtering Characteristics of WJGL Pulsation Attenuator Based on Electro-Hydraulic Analogy Principles
摘要
Abstract
In WJGL,the instability in water jet from low-frequency pressure pulsations(0～500 Hz)in fluid supply systems needed urgent resolution.A water pressure pulsation attenuator was designed using flexible liners for coupling vibrations and Herschel-Quincke tubes(HQ tubes)for phase cancellation,achieving dual filtering.A transfer matrix model was established based on one-dimensional analytical ap-proach and electro-hydraulic analogy principle,and the feasibility was experimentally verified through pro-totype testing.The influence mechanism of key parameters,such as HQ tube structures,insert tube lengths,and liner elastic modulus on low-frequency pulsation attenuation were quantitative analyzed in simulations.The results show that the damping performance of polyurethane liners improves as their elastic modulus decreases,while the loss angle negatively affects transmission loss.Under certain conditions,changing the insert tube lengths has minimal impact on transmission loss(TL),but increasing the HQ tube lengths and reducing the diameter enhances attenuation.关键词
水导激光供液系统/低频压力脉动/电液类比法/传递矩阵声学模型Key words
water jet guided laser(WJGL)fluid supplying system/low frequency pressure pulsation/electro-hydraulic analogy method/transfer matrix acoustic model分类
机械制造引用本文复制引用
孟朝中,杨帆,余家欣,王宇强..基于电液类比原理的水导激光水压脉动衰减器滤波特性[J].中国机械工程,2025,36(9):1961-1967,7.基金项目
四川省科技计划(2023NSFSC0860) （2023NSFSC0860）
四川省科技厅自然科学基金创新研究群体项目(24NSFTD0019) （24NSFTD0019）
教育部产学合作协同育人项目(22107118134157) （22107118134157）
西南科技大学研究生创新基金(25ycx2046) （25ycx2046）
