关键词: controller design dynamic modelling experimental validation injection moulding nozzle pressure control process control

来  源:   DOI:10.3390/polym16101432   PDF(Pubmed)

Abstract:
A 1D model describing the dynamics of an injection moulding machine and the injection process is presented. The model describes an injection cylinder actuated by a dual-pump electro-hydraulic speed-variable drive and the filling, holding and cooling phases of the injection moulding process utilising amorphous polymers. The model is suggested as the foundation for the design of model-based pressure controllers of, e.g., the nozzle pressure. The focus is on using material, mould and machine properties to construct the model, making it possible to analyse and design the dynamic system prior to manufacturing hardware or conducting experiments. Both the presented model and the developed controller show good agreement with experimental results. The proposed method is general in nature and enables the design, analysis and evaluation of the machine, material and mould dynamics for controller design based solely on the physical properties of the system.
摘要:
提出了描述注塑机动力学和注射过程的一维模型。该模型描述了由双泵电液变速驱动和灌装驱动的注射缸,使用无定形聚合物的注射成型过程的保持和冷却阶段。该模型被建议作为基于模型的压力控制器设计的基础,例如,喷嘴压力。重点是使用材料,构建模型的模具和机器属性,使得在制造硬件或进行实验之前分析和设计动态系统成为可能。提出的模型和开发的控制器与实验结果均显示出良好的一致性。所提出的方法本质上是通用的,可以使设计,机器的分析和评估,仅根据系统的物理特性进行控制器设计的材料和模具动力学。
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