摘要
针对偏心蠕动式转子泵液力端的几何结构及运动特性,分析了转子平面蠕动运动过程中的受力以及约束情况,并结合偏心蠕动式转子泵实际设计参数,计算和分析了泵工作过程中的6个工况点的载荷和约束.基于ANSYS有限元软件,建立了转子三维模型,并对其进行了六面体SWEEP网格划分;采用准动态模拟方法对非金属材料的聚甲醛转子强度、刚度进行数值模拟计算,得到了6个工况点中转子应力及变形数据.结果表明,采用聚甲醛材料的转子在泵工作过程中所受最大应力远小于材料许用应力,强度、刚度均满足要求.数值模拟结果为偏心蠕动式转子泵可靠性设计提供了理论依据.
Based on the geometry and motion characteristics of hydraulic end in eccentric and squirmy rotor pump,the stress and restriction condition of rotor during the squirm process were analyzed.According to the design parameters of eccentric and squirmy rotor pump,the load and restriction condition at six operating points were calculated and analyzed.A three-dimensional model of rotor was built based on ANSYS,and analyzed with hexahedral SWEEP mesh method.Furthermore,a numerical simulation for Polyoxymethylene（Pom） rotor′s intensity and stiffness was carried out by using quasi-dynamic model method,and the stress and strain data of the rotor at six operating points were derived.The results of numerical simulation show that the maximum stress of the rotor with Pom material is far less than the allowable value,and both the stress and strain of the rotor meet the demands.The results provide a basis for reliability design of eccentric and squirmy rotor pump.
出处
《排灌机械工程学报》
EI
2010年第2期132-135,共4页
Journal of Drainage and Irrigation Machinery Engineering
基金
浙江省应对技术性贸易壁垒技术攻关项目(0703-172)
关键词
转子
偏心蠕动式转子泵
应力
变形
强度
rotor
eccentric and squirmy rotor pump
stress
strain
intensity
