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In this paper, a new design approach for aerostatic bearing spindles (ABS) is firstly proposed which takes into account of the interactions between the mechanical and the servo subsystems, including the integration of electromagnetic effects, static pressure characteristics, servo control and mechanical characteristics. According to the air bearing design principle, the geometry of the spindle rotor...
The kinematic joints of machine tool feed system are crucial for the dynamics modeling. It affects the dynamic characteristics of machine tool feed system, and then there will be a significant influence on machining quality of workpieces. Considering the gravity of spindle box components, a dynamic model of vertical axis feed system was established using lumped parameter method in this paper. The...
All the dynamic characteristics of machine tools, especially modal behaviors, should be known during the whole working process, in order to obtain high surface quality and accuracy of machined parts. In this paper, matrix perturbation method (MPM) is adopted to perform the modal analysis on machine tools under working state. A VMC0540d high-speed milling machine tool's modal variation within its working...
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