Identifying temporal and spatial responses of cross machine actuators for sheet-forming processes

作     者：Chen, SC Subbarayan, R 

作者机构：ABB Proc Ind Inc Columbus OH 43202 USA 

出 版 物：《IEE PROCEEDINGS-CONTROL THEORY AND APPLICATIONS》 (IEE Proc Control Theory Appl)

年 卷 期：2002年第149卷第5期

页      面：441-447页

核心收录：

学科分类：0808[工学-电气工程] 08[工学] 0804[工学-仪器科学与技术] 0811[工学-控制科学与工程] 

主　　题：actuators Step Test FORMING PROCESSES CTLA4 gene NOD2 gene machine 

摘      要：The cross-machine direction (CD) control performance for sheet-forming processes is heavily dependent on the accuracy of the models that characterise the responses of all CD actuators. Adjustment of each CD actuator generally affects a portion of sheet in both machine (temporal) direction and cross-machine (spatial) direction. A method to identify CD actuator responses in both directions by utilising two-dimensional sheet variation measurements is described. The new modelling method allows simultaneous identification of individual two-dimensional responses for all CD actuators and avoids the severe impacts of conventional simple step tests.