液压与气动2025，Vol.49Issue(9)：1-9,9.DOI:10.11832/j.issn.1000-4858.2025.09.001
刚性管路油液声速双向递进搜索算法研究
Research on Bidirectional Progressive Search Algorithm for Oil Sound Velocity in Rigid Pipeline
摘要
Abstract
Accurate measurement of the speed of sound in hydraulic systems is essential for performance prediction and optimization.However,since the speed of sound is sensitive to the system state,conventional methods often fail to provide reliable measurements under varying conditions.To address these challenges,we propose a novel bidirectional progressive search algorithm for calculating the speed of sound in rigid pipelines.First,we establish a physical model of sound speed based on the pressure wave's propagation characteristics in pipelines.Next,data processing techniques are optimized,and a high-precision calculation is achieved through an improved bidirectional search algorithm.Pressure fluctuations under different operating conditions are measured using a dedicated experimental setup.We validate the accuracy of the proposed method by comparison with conventional approaches.The experimental results show that the proposed method significantly outperforms existing techniques in terms of computational accuracy across a range of conditions,with an average improvement of 4.5％in the calculated speed of sound.Notably,under a pressure of 15 MPa and in turbulent flow conditions with secondary source interference,the improvement reaches up to 7.8％.These findings demonstrate that the proposed approach can offer higher accuracy and broader applicability in dynamic hydraulic environments.关键词
液压系统/声速测量/刚性管道/压力波动Key words
hydraulic system/measurement of speed of sound/rigid pipeline/pressure fluctuation分类
机械制造引用本文复制引用
陈鼎,许俊城,叶绍干,徐兵,鲍岳,罗经..刚性管路油液声速双向递进搜索算法研究[J].液压与气动,2025,49(9):1-9,9.基金项目
国家重点研发计划(2022YFF1400203) （2022YFF1400203）
福建省自然科学基金(2025J011284) （2025J011284）
