摘要
为了在微观上提取液压管路的参数,实现对液压系统的故障预测和提前诊,对科考船绞车系统中缆松弛补偿器液压系统圆直管路流动状态进行参数设定与分析,确定管路在不同黏度下的流动方案,进行CFD数值模拟,得到管路中液压油边界层厚度的变化规律,并与系统温度参数进行耦合。结果表明,随着系统温度升高,边界层厚度增长速度也减缓,在同一管路位置,其边界层厚度与液压系统的温度呈反比关系。
In order to extract the parameters of hydraulic pipeline from microscopic point of view, realize the fault prevention and advance diagnosis, the flow parameters was set and analyzed for straight circular pipeline in the hydraulic system of slack wire compensator of scientific research winch system, the flow plan of the pipeline under different viscosity was formulated to carry out CFD numerical simulation in the pipeline. The variation of the hydraulic oil boundary layer thickness in the pipeline was obtained and the coupling relationship with the system temperature parameters was studied. The results showed that the increment speed of the boundary layer thickness decreases with the increase of system temperature. At the same pipeline location, the thickness of the boundary layer is negatively proportional to the temperature of the hydraulic system.
作者
李文华
隆利
龙培基
韩凤翚
周性坤
林珊颖
孙玉清
LI Wen-hua;LONG Li;LONG Pei-ji;HAN Feng-hui;ZHOU Xing-kun;LIN Shan-ying;SUN Yu-qing(School of Marine Engineering,Dalian Maritime University,Dalian Liaoning 116026,China)
出处
《船海工程》
北大核心
2019年第6期68-71,76,共5页
Ship & Ocean Engineering
基金
国家自然科学基金(51779026)
国家重点研发计划(2018YFC0309003)
中央高校基本科研业务费专项资金(3132019188)
关键词
液压管路
CFD
边界层厚度
系统温度
耦合
hydraulic pipeline
CFD
boundary layer thickness
system temperature
coupling
