噪声与振动控制2025，Vol.45Issue(3)：256-261,6.DOI:10.3969/j.issn.1006-1355.2025.03.040
空沟-波阻板联合隔振体系的三维数值分析
3-D Numerical Analysis of Vibration Isolation Efficiency of an Open Trench-WIB Barrier
摘要
Abstract
To make up for the defects of hollow gully isolation and wave baffle isolation,a new joint hollow gully and wave baffle vibration isolation system was proposed.Combined with the absorption boundary of the perfectly matched layer,a finite element model was established by COMSOL,which was used to establish the isolation barrier in the elastic half-space under harmonic load.The effects of physical parameters(modulus ratio between foundation and wave resistance plate),geometric parameters(depth of ditch,depth of wave resistance plate,length of barrier and distance from vibration source)and load parameters(frequency of vibration wave)on vibration isolation performance were analyzed by numerical examples.The results show that the combined isolation barrier has better vibration isolation performance than the single iso-lation barrier.When the groove depth reaches 0.3 LR,the vibration isolation effect is better.The larger the depth of the wave baffle and the width of the barrier,the better the vibration isolation effect;When the length of the combined barrier reaches 2.5 LR,the vibration isolation effect is better.The combined barrier of air trench and wave baffle is more suitable for active vibration isolation in near field.关键词
振动与波/空沟-波阻板联合屏障/三维分析/有限单元法/隔振效果/主动隔振Key words
vibration and wave/open trench-WIB combined barrier/three-dimensional analysis/finite element meth-od/isolation effectiveness/active vibration isolation分类
建筑与水利引用本文复制引用
任康乐,曹小林,刘佳,马强..空沟-波阻板联合隔振体系的三维数值分析[J].噪声与振动控制,2025,45(3):256-261,6.基金项目
国家自然科学基金资助项目(51978320,11962016) （51978320,11962016）
兰州理工大学红柳优秀青年人才支撑计划资助项目 （）
甘肃省高校教师创新技能基金资助项目(2024A-019) （2024A-019）
