基于模糊PID控制的真空差压铸造工艺优化研究  

Study on Optimization of Vacuum Differential-pressure Casting Technology Based on Fuzzy PID Controller

作　　者：代君[1] 宋辉[2] 李密 

机构地区：[1]郑州航空工业管理学院航空工程学院,河南郑州450046 [2]郑州航空工业管理学院机电工程学院,河南郑州450046 [3]中航工业西安航空制动科技有限公司,陕西兴平713100

出　　处：《热加工工艺》2016年第17期100-103,共4页Hot Working Technology

基　　金：河南省科技厅项目(162102210237;162102210089;152102210348;152300410125);航空科学基金项目(2010ZF56016);郑州航空工业管理学院青年基金项目(2014153001)

摘　　要：为了提高真空差压铸造过程中压力的控制精度,本文研究了基于模糊PID控制的反重力真空差压铸造工艺优化。首先,对真空差压铸造工艺进行分析,确定优化对象;然后,设计以STM32为核心的硬件控制系统,对铸造过程中压力值进行实时采集;最后,将模糊PID控制算法耦合到控制系统中,以实现对铸造过程中压力值的精确控制,从而实现对真空差压铸造工艺的优化。In order to improve the control precision of pressure in the process of vacuum differential-pressure casting, the optimization of counter-gravity vacuum differential-pressure casting process was studied based on fuzzy PID controller. Firstly, the vacuum differential-pressure casting process was analyzed, and the optimization object was determined. Then, the hardware control system was designed with STM32 as its core to collect the pressure value during the casting process in real time. Finally, the fuzzy PID control algorithm was coupled to the control system to realize the precise control of the pressure in the casting process. So the optimization of the vacuum differential-pressure casting process was realized.

关 键 词：真空差压铸造 模糊PID 压力控制 

分 类 号：TG249.9[金属学及工艺—铸造]