| Summary: | 碩士 === 國立中正大學 === 機械工程學系 === 85 === In recent year ,machine tools have a lot of production in
the market all over the world. Every country also make a lot of
effort in research of machine tools. High speed and high
precision are newly directions of the future development of
machine tool technology. As a main part of machine tool, a
build-in high-speed spindle is a key technology for such kind of
development. The high heat produce by the build-in motor will
make great damage to the bearing systems. The aim of this
research is to develop a system of the analysis tools that can
help engineer to design a better cooling system of the high
speed spindle. First, we utilize CAD/CAM software I-DEAS and
AutoCAD to build the shape model of the high speed spindle
cooling system, and we use HyperMesh and I-DEAS to build the
three-dimensional finite element model for cooling system. Next,
we use several examples to investigate the accuracy of the
structure heat transfer analysis software, TOPAZE-3D. Finally,
we coupled fluid-structure program together and compare the
analysis solutions with the experimental data. By use the solid-
fluid coupled program, we can analysis the structure and fluid
temperature distribution of I-BAG straight line cooling system
and NCCU helical cooling system. By comparison the cooling
effect of both cooling waterway in the design. At last, we use
the methods of back-propagation neural network training method
to find the real motor heat source in NCCU high speed spindle.
All the analytical methods developed in this research can offer
the spindle designer a new direction to improve design.
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