中文摘要：

非牛顿流体微挤出量难以在线测量,对挤出量的高一致性要求在很大程度上依靠预测模型的精度来保证。针对工程中常用的一类幂率非牛顿流体,在分析其动态特性的基础上,建立了非牛顿流体微挤出时的流速、流量及微挤出量的物理预测模型,且模型中保留了驱动压力、时间等挤出过程主要影响因素的物理量,使得模型便于与控制算法集成。通过数值仿真,验证了模型的有效性。研究结果表明,所建模型对幂率非牛顿流体微挤出量的预测精度达到了1%以上,为非牛顿流体定量微挤出过程的精确控制提供了基础。

英文摘要：

For the volume of non-Newtonian fluid micro extruded out was difficultly to be measured,its consistency was mainly ensured by the precision of the predictive models.Aiming at a kind of power law non-Newtonian fluid commonly used in engineering,based on analyzing its dynamic characteristics,its flow velocity,flow rate and physics predictive volume models on the condition of micro extruding through a micro tube was established,for the models contained the main physics factors such as pressure and its work time,which made the models easy to be integrated with control strategy.The validity of the models was tested by numerical simulations.The study result shows that the established models have a high predictive precision of micro-extrusion volume up to 1%,all the work supplies a basis of precise control for non-Newtonian fluid micro-extrusion process.