摘要
以长距离多层卷绕液压回路为研究对象,通过试验研究流体流经长距离多层卷绕液压回路时的压力损失情况.结果表明,在流体未达到临界雷诺数时,依然可能因为流体与软管的相互作用引起紊流,同时在管道总长度保持不变的层流状态下,流体的沿程压力损失随卷绕层数增多呈线性增大.通过引入液阻的概念得到了长距离连续变曲率弯曲管道压力损失的半经验计算公式.
The hydraulic circuit with a long-distance multilayer-winded hydraulic hose was studied. Through transmission loss experiment, the characteristics of fluid pressure loss in this special hydraulic circuit was discovered. The experiment indicate that turbulence could also be caused by the interaction between the hydraulic hose and oil. With the whole length of hydraulic hose unchanged, the pressure loss increases with the increase of the layers of the hose curves. And in laminar status, the pressure increases linearly. The concept of hydraulic resistance was introduced to derive the half- experience formula for calculating the pressure loss in the circuit of multilayer-winded hydraulic hose.
出处
《同济大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2015年第6期910-914,共5页
Journal of Tongji University:Natural Science
基金
"十二五"国家科技支撑计划(2011BAJ02B06)
关键词
双轮铣槽机
长距离
多层卷绕
压力损失
液阻
trench cutter
long distance
multilayer-winded
pressure loss
hydraulic resistance
