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Title:System Characterization, Control and Optimal Feed -Rate Scheduling for High -Speed Machining and Nano Positioning
Author(s):Dong, Jingyan
Doctoral Committee Chair(s):Ferreira, Placid M.; James A. Stori
Department / Program:Mechanical Engineering
Discipline:Mechanical Engineering
Degree Granting Institution:University of Illinois at Urbana-Champaign
Subject(s):Engineering, Mechanical
Abstract:Finally, a provably-optimal feedrate-optimization (trajectory planning) algorithm is developed to exploit the capabilities of a given physical motion system. System capabilities and process requirements are modeled and formulated as constraints to drive the algorithm. The resulting trajectory makes full use of the system capabilities and completes the required task in the minimum time, while satisfying all performance requirements such as dimensional error, maximum cutting force, etc. A bi-directional scan structure is adopted for the algorithm and a sub-optimization structure for each optimized point. These features make the algorithm computationally efficient, extendable to any state-dependent constraints and robust with respect to singularity difficulties often encountered in the optimal control approach. By studying the behavior of the algorithm in the phase plane, global optimality of this feedrate-optimization algorithm is proved.
Issue Date:2006
Description:203 p.
Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2006.
Other Identifier(s):(MiAaPQ)AAI3242837
Date Available in IDEALS:2015-09-25
Date Deposited:2006

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