On the Hierarchical Systems, Optimization and Adaptive Control of Machine Tools

Abstract

The paper analyses the interconnection of several levels of manufacturing systems, namely of the production scheduling and manufacturing planning. The manufacturing planning and production scheduling problems are discussed together, from the viewpoint of the optimization of the manufacturing production systems as a whole. It is shown how management requirement can be considered in cutting data determination. A new, so called, secondary optimization method is proposed for the realization of the above goal.When modern, computer automated systems are used for manufacturing planning (including data optimization) and production scheduling, these subsystems can be connected giving-in some sense-optimal performance.In modern CAD/CAM systems the adaptive control of technological processes will be necessary. For these systems the proposed secondary optimization method gives a new override principle. When using adaptive control of machine tools in sophisticated computer controlled environment the new override principle, together with flexible, dynamic production control and manufacturing planning methods, makes it possible to develop effective, optimized subsystems of manufacturing production.The outlined results can be used individually, in less sophisticated environments, too.