... are generally chosen from a machining-data handbook, requiring operator experience and skill. In order to improve drilling efficiency while preserving tool life, the current study focuses on the design and implementation of a simple, optimal fuzzy-control system for drilling force. The main topic of this study...

...Bingfeng Fan; Mahesh Munavalli; David O. Kazmer A non-Newtonian, non-isothermal flow analysis has been developed to assist the design of a self-compensating polymer melt regulator, which is a device capable of regulating the melt pressure in polymer processing via an open loop control architecture...

... is that the nonlinear model considers both the machine hydraulic actuator and polymer flow characteristics in extensive detail. The simulation model is validated against experimental data and demonstrates the availability of a relatively accurate system model for full cycle control design of this electro-hydraulic...

... the critical thrust force for damage initiation. This study establishes the key process stages exhibited by carbon and aramid fiber composites during drilling, the critical threshold feed rates to avoid damage, and machining relations that can be utilized for the design of intelligent controllers for efficient...

...H. Qiao The general purpose of sensors is to obtain information on the system. However, in many cases, sensors cannot provide all the information on the system being controlled. On the other hand, the controller system does not need all the information in the process to guide the system...

...C.-W. Hsu, Graduate Student Research Assistant; A. G. Ulsoy, Professor and Fellow ASME; M. Y. Demeri, Senior Technical Specialist, Varying the blank holder force during forming can lead to higher formability and accuracy, and better part consistency. Process control, using on-line adjustment...