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Retrieving the vast amount of information carried by a photon is an enduring challenge in quantum metrology science and quantum photonics research. The transverse spatial state of a photon is a convenient high-dimensional quantum system for study, as it has a well-understood classical analog as the transverse complex field profile of an optical beam. One(More)
In order to improve the work precision, the finite element models of crossbeam of heavy NC gantry moving boring & milling machine were established, and static/dynamic characteristics were analyzed. The crossbeam itself stiffness and the tip displacement converted by beam deformation under the largest cutting force and gravity load were calculated.(More)
A simulation research concerning the gap flow performance of multi-pad hydrostatic thrust bearing having circular cavities in the large-scale vertical CNC lathe was described. The Finite Volume Method of Fluent has been used to compute fluid three-dimensional velocity field and pressure field of gap flow between the revolution working table and bearing pad.(More)
This paper describes a numerical study concerning the gap flow performance of multi-pad hydrostatic thrust bearing having sector recesses in the upright numerically controlled lathe. The Finite Volume Method has been used to compute fluid three-dimensional velocity field and pressure field of gap flow between the revolution working table and bearing pad.(More)
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