الفهرس 
The Virtual Evaluation SystemOnly 14 pages are availabe for public view
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Abstract
This thesis presents a simulation system which is employed in order to evaluate the static,
dynamic, and thermal performance of machine tools. Obtaining such a virtual model could replace
many experimental tests that must otherwise be carried out each time the parameters affecting the
machine performance are changed. The system is created based on well- defined design
considerations, then, it is verified, and applied on some realistic cases. The system evaluates the
machine tool performance based on several perspectives namely: static loop stiffness, mode shapes,
frequency response function at tool center point, and thermal deformation. Mechanical modeling of
mechanical structure and other subsystems of machine tool is achieved, cutting loads are
analytically generated, and the heat generation at the hot spots is determined as well. Cutting
conditions, cutter and work piece characteristics, category of mechanical structure, supporting
webs, position of spindle head are all considered when evaluating the performance of the machine
tool in order to provide designers with helpful recommendations in the early design stage. The
obtained results from the designed simulation approach provide an evaluation of the behavior of the
tool center point in relation to the work piece. Since that behavior will be reflected on the
product, these results can be used as criteria for the product accuracy.
The designed evaluation system is proved to give a realistic simulation of the performance of
machine tools that concerns the behavior of various machine tool elements and the parameters
affecting the machining process.