基于模糊控制的挤压铸造模温控制系统研究

针对挤压铸造模具温度难于控制的特性,分析了挤压铸造工艺及挤铸模具温度影响因素。根据现有挤铸模具加热及冷却方式,结合分析研究影响挤铸模温的多因素与多变性,建立了新的挤铸模具温度控制模型,并运用模糊控制方法来实现温度控制。在设计好模糊控制器后,利用Matlab软件中的Simulink模块建立了模温控制系统模型并实现了仿真分析。仿真结果表明:与传统的PID控制相比,模糊控制系统具有良好的控制特性。

Study of squeeze casting die temperature control system based on fuzzy control

On account of difficulties of squeeze casting die temperature control,squeeze casting process and factors influencing squeeze casting die were analyzed.On the basis of current heating and cooling ways of squeeze casting die,the much factors and variability of die temperat-ure influence were studied,a new squeeze casting die temperature control model was established.The temperature control was realized by the fuzzy control pattern.After designing the fuzzy controller,simulation model of die temperature control system was set up in the Simulink block of Matlab and the analysis of simulation was operated.The simulation results show that the system has good control performance,compared with the traditional PID control mode.