水下无人系统学报2026，Vol.34Issue(2)：209-223,15.DOI:10.11993/j.issn.2096-3920.2025-0141
仿生锯齿结构对环形螺旋桨水动力噪声特性影响规律研究
Influence Law of Bionic Serrated Structure on Hydrodynamic Noise Characteristics of Toroidal Propellers
摘要
Abstract
The toroidal propeller has emerged as a research hotspot in the field of underwater propulsion owing to its potential for enhancing propulsion efficiency and achieving effective noise control.Bionic principles offer a novel technical approach to noise reduction of propellers.However,the application research of bionic structures in underwater toroidal propellers is still relatively scarce.Therefore,this study aims to explore the mechanism of the influence of bionic serrated structures on the hydrodynamic noise of toroidal propellers.Inspired by the acoustic characteristics of owl wing-edge serrations and based on the parametric modeling method of a toroidal propeller,a bionic variant with trailing-edge serration features was designed.Based on computational fluid dynamics(CFD)and the FW-H acoustic analogy theory,the characteristics of the propeller flow field and the variation patterns of non-cavitation noise under different serration sizes were systematically analyzed.The research results show that the bionic serrated structure has a modulation effect on the broadband noise components of the propeller,achieving a noise reduction of 0.3～1.5 dB within the radial observation plane;in the area of the blade tip and the rear part of the middle section,the noise reduction effect is significantly dependent on the serration size and the operating speed.In other words,at high operating speeds,the noise amplitude is effectively reduced,while at low operating speeds,the noise in specific areas slightly increases.This study elucidates the influence of bionic serrated parameters on noise,providing a theoretical foundation and optimization direction for the bionic design of low-noise underwater propellers.关键词
环形螺旋桨/仿生/降噪/锯齿状后缘/水动力噪声/FW-H声类比Key words
toroidal propeller/bionic/noise reduction/serrated trailing edge/hydrodynamic noise/FW-H acoustic analogy分类
军事科技引用本文复制引用
毛鑫培,刘鹏,柳江,康鲁迪,金辉,殷逸冰..仿生锯齿结构对环形螺旋桨水动力噪声特性影响规律研究[J].水下无人系统学报,2026,34(2):209-223,15.基金项目
国家自然科学基金项目(62501348,62401312) （62501348,62401312）
中央引导地方科技发展资金项目(2024YD012) （2024YD012）
国防科工局稳定支持项目(WDZC20245150310). （WDZC20245150310）
