锻造操作机夹钳旋转系统的T-S模糊建模  

Modeling on rotation system of forging manipulator based on T-S fuzzy mode

作　　者：罗杰华[1,2] 丁文华[1,2] 段小刚[1,2] 邓华[1,2] 

机构地区：[1]中南大学高性能复杂制造国家重点实验室,湖南长沙410083 [2]中南大学机电工程学院,湖南长沙410083

出　　处：《锻压技术》2015年第9期62-68,共7页Forging & Stamping Technology

基　　金：国家973课题"大尺度重型构件稳定夹持原理及夹持系统驱动策略(2006CB705404)";高性能复杂制造国家重点实验室自主研究课题(zzyjkt2013-22B)

摘　　要：针对锻造操作机液压伺服驱动夹钳旋转系统的强非线性问题,提出了一种基于T-S模糊模型的夹钳旋转系统的建模方法。根据夹钳旋转系统的非线性特性,把锻造操作机夹钳旋转系统的状态空间划分为若干个子空间,构建成具有参数不确定性的T-S模糊模型。将模糊推理系统中的模糊规则及隶属度函数参数通过自适应模糊神经网络自学习整定,产生模糊规则和隶属度函数。通过实验验证所建夹钳旋转系统T-S模糊模型的合理性。实验结果表明,建立夹钳旋转系统T-S模糊模型的输出与实验实际系统的输出基本吻合,所建立的夹钳旋转系统T-S模糊模型为夹钳旋转系统的控制提供了基础。For the nonlinear problem on clamp rotation system of forging manipulator by the hydraulic servo driving,a modeling method of the clamp rotation system was proposed based on T- S fuzzy modeling. According to the nonlinear characteristics of the clamp rotation system,the state space of the clamp rotation system in the forging manipulator was divided into several sub spaces to build a T- S fuzzy model with the uncertain parameters. Then,the fuzzy rules and membership function parameters in fuzzy inference system were adjusted by adaptive neuro-fuzzy inference（ ANFIS）,and the fuzzy rules and membership function were produced. Finally,the rationality of the T-S fuzzy model was validated by the experiment. The experimental results show that the calculated values by T- S fuzzy model of the clamp rotation system are basically consistent with the measuring values by the actual system,and the established T- S fuzzy model of the clamp rotation system provides the foundation for the control of the clamp rotation system.

关 键 词：锻造操作机 液压伺服系统 非线性系统 T-S模糊模型 

分 类 号：TG315[金属学及工艺—金属压力加工]