混凝土泵车主阀块流道CFD仿真分析与试验研究
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摘要
针对某型混凝土泵车核心液压部件一种新铸造主阀块的流道压力损失进行仿真和试验研究,采用计算流体力学(CFD)方法,结合油液流动特性模拟阀块内部流道的压力和速度分布情况,验证仿真的有效性。同时通过试验测试,对比新铸造主阀块和原机加主阀块的压力损失情况。得到的仿真值和试验值基本吻合,新铸造主阀块流道内的压力损失低于原机加主阀块流道内的压力损失,研究结果为阀块流道的结构设计及优化奠定了基础。
Simulation and test research on the flow pressure loss of a new casting main valve block for the core hydraulic components of a concrete pump truck was carried out in this paper. With flowing characteristics, simulation of the pressure and the internal flowing velocity was proposed. Based on the oil flow characteristics, the pressure and velocity distribution in the flow path of the valve block was simulated so as to verify the effectiveness of the simulation. At the same time, the pressure loss of the newly cast main valve block was compared with that of the original one. The results show that the simulated value and the experimental value are basically identical, and the pressure loss in the flow path of the newly cast main valve block is lower than that of the original one. The research results provide a reference for the structural design and optimization of flow-path of the main valve block.
Simulation and test research on the flow pressure loss of a new casting main valve block for the core hydraulic components of a concrete pump truck was carried out in this paper. With flowing characteristics, simulation of the pressure and the internal flowing velocity was proposed. Based on the oil flow characteristics, the pressure and velocity distribution in the flow path of the valve block was simulated so as to verify the effectiveness of the simulation. At the same time, the pressure loss of the newly cast main valve block was compared with that of the original one. The results show that the simulated value and the experimental value are basically identical, and the pressure loss in the flow path of the newly cast main valve block is lower than that of the original one. The research results provide a reference for the structural design and optimization of flow-path of the main valve block.
引文
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[3] 苏乃权,李石栋,蔡业彬,等.基于FLUENT的集成块流道的仿真分析[J].机床与液压,2017(4):92-96.
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[2] 张永利.液压集成块智能优化设计系统——模型数据库与系统集[D].大连:大连理工大学,2004.
[3] 苏乃权,李石栋,蔡业彬,等.基于FLUENT的集成块流道的仿真分析[J].机床与液压,2017(4):92-96.
[4] 侯占勇,胡军科,周创辉.混凝土泵高低压切换阀典型管网液流特性[J].长安大学学报,2014(11):168-174.
[5] 张宏,田树军,刘万辉,等.基于CFD的液压集成块典型流道液阻仿真研究[J].中国机械工程,2007(9):2223-2226.
[6] 赵宏林,代广文,张开龙,等.基于湍流理论的液压集成块流道仿真分析[J].石油机械,2015(8):78-82.
[7] 杜经民,蔡保全,李宝仁.某系统液压集成块流道液流特性分析[J].机床与液压,2010(13):143-146.
[8] 方子帆,贺青松,谭宗柒,等.液压阀阀体内流场的数值分析与可视化[J].三峡大学学报,2011(4):63-65.