振动力场强化单螺杆挤出固体输送的离散单元法模拟  

Discrete Element Method Simulation of Single Screw Extruder Solid-conveying Intensified by Vibration Force Field

作　　者：张琳[1] 瞿金平[1] 李建波[1] 

机构地区：[1]华南理工大学聚合物新型成形装备国家工程研究中心教育部聚合物成形加工工程重点实验室,广州510641

出　　处：《中国机械工程》2006年第22期2406-2410,共5页China Mechanical Engineering

基　　金：国家自然科学基金资助项目(10472034;10590351)

摘　　要：将岩石力学中的研究方法———离散单元法引入塑料挤出固体输送研究中,并建立了固体输送段的离散输送模型。该模型可以从微观上分析聚合物颗粒在挤出过程中的受力和运动,也可以从宏观上描述整个颗粒体系的运动规律。模型能体现振动力场对强化单螺杆挤出固体输送的影响,反映电磁动态挤出机固体输送段的输送规律,为新型设备的设计应用提供理论支持。This paper introduced the Discrete Element Method which was used in rock mechanics into the research of polymer extruder＇s solid--conveying zone,and set up a discrete transport model. From microscopic view, this model can analyze the polymer particle＇s force and movement in the extrusion process. Then, from macroscopic view, this model can be used to describe the movement ru of the particle system. This model can incarnate the vibration force field＇s screw extruder, reflect the law of transport in the electromagnetic dynam e influence to intensify single c extruder＇ s solid-- conveying zone,and provide theory support for the design and application of new device.

关 键 词：离散单元法 固体输送 电磁动态挤出机 振动力场 

分 类 号：TQ320.66[化学工程—合成树脂塑料工业]