摘要
针对目前国内多道次板簧成型拉料机构控制系统存在的问题,采用电液伺服阀取代电磁换向阀,以实现拉料车速度与轧辊线速度的匹配.推导了拉料车速度与轧辊压下量(辊缝)的函数关系;建立了拉料机构控制系统的数学模型,并用MATLAB对PID控制、模糊控制、模糊PID控制等三种方式进行了系统仿真.结果表明:模糊PID控制方案的控制精度最高,抗干扰能力强,该方案为实现拉料车速度随辊缝变化提供了有效地控制方法,对提高板簧的生产质量具有重要意义.
To resolve the problems that exist in the present domestic multichannel time variable cross-section plate spring mill pull skip control system,the electro-hydraulic servo valve was used to replace electromagnetic directional valve,in order to realize pull skip speed and roll speed matching.The pull skip speed and roll reduction(namely roll gap) function relations were derived,the pull skip control mathematic model of the system was established,and the simulations of PID control,fuzzy control and fuzzy PID control were carried out with matlab.The results show that the fuzzy PID control scheme has the highest control presision and the strongest anti-jamming ability.It provides an effective control method to realize pull skip speed along with the roll gap changes and has great significance in improving the production quality of spring.
出处
《山东理工大学学报（自然科学版）》
CAS
2013年第2期58-61,共4页
Journal of Shandong University of Technology:Natural Science Edition
关键词
板簧
拉料机构
模糊PID控制
电液伺服阀
plate spking
puller mechanism
fuzzy PID control
electro-hydraulic servo valve
