Hydraulic control system of mechanical energy stored type powder high velocity compaction machine

作     者：Dongdong You Qian Zhu Yanghui Zhu Fenglei Li 

作者机构：National Engineering Research Center of Near-net-shape Forming for Metallic Materials South China University of Technology Guangzhou 510640 China Metastable Materials Science and Technology State Key Laboratory Yanshan University Qinhuangdao 066004 China 

出 版 物：《IOP Conference Series: Materials Science and Engineering》 (IOP会议录：材料科学与工程)

年 卷 期：2019年第638卷第1期

页      面：012002-012002页

学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 

摘      要：An automatic control scheme of spring energy storage by hydraulic control of spring compression is presented and implemented in this paper to improve the automation level, control accuracy and production efficiency of the existing HVC machine with mechanical energy storage type. The hydraulic system, servo system, and PLC codes are developed. The PID control optimization is applied for the control error accuracy of the machine. The transfer function is derived, and the genetic algorithm is used to optimize the PID parameters. The control scheme is implemented in the updated machine. The experimental results of iron powder HVC are in agreement with the predicted and calculated values. The reliability and validity of the automatic control scheme is verified. The research facilitates the industrial application of this kind of equipment.