某自卸车液压系统集成块内部管路仿真与优化  

Simulation and Optimization for Channel Inside Manifold Block of Hydraulic System of Dump Truck

作　　者：马超[1] 倪文波[1] 王雪梅[1] 

机构地区：[1]西南交通大学机械工程学院,四川成都610031

出　　处：《石家庄铁道大学学报（自然科学版）》2017年第1期91-94,110,共5页Journal of Shijiazhuang Tiedao University(Natural Science Edition)

摘　　要：根据某自卸车液压系统的实际工作情况,采用计算流体力学方法基于Fluent软件对其集成块内浮动状态工作管路进行数值模拟,得出管路工作时的压力云图、速度云图和速度矢量图。通过分析油液产生压力损失的规律机理,找出工艺孔容腔和直角转向结构是造成压力损失的主要原因。最后,根据分析结论对该管路进行减小工艺孔容腔容积以及取消直角转向结构的改进,实现管路压力损失的减小。According to the actual work of the hydraulic system of a dump truck, using computational fluid dynamics methods to simulate its working pipeline of floating state within the manifold block based on Fluent, the results of the calculation are expressed by the figure of pressure contour, velocity contour and velocity vector. By analyzing the law of pressure loss of liquid flow,it is found that the pressure loss is mainly caused by the technique-cavities and the right-angle turning structure. At last, according to the analysis conclusion, some corresponding improvements of the pipeline are made to reduce the volume of technique-cavities and cancel the right-angle turning structure, thus the pressure loss of the pipeline is significantly decreased.

关 键 词：液压集成块 流场 数值模拟 压力损失 

分 类 号：U469.4[机械工程—车辆工程]