Method of describing a surface of an object after processing
AssigneeMitsubishi Denki Kabushiki Kaisha
InventorsMasato Fujinaga, Norihiko Kotani
Life of this patent
Estimating the term…
Abstract
A shape simulation method includes dividing an analysis volume into a plurality of cells, defining an initial volume ratio of the volume of a substance in a cell to the volume of the cell for each cell, computing the in flow and the out flow of the substance in each cell every time a very small time period elapses, computing a volume ratio for each cell from the initial volume and the in flow and out flow of the substance every time a very small time period elapses, and simulating the surface shape of the substance with the cells having a volume ratio of a predetermined value.
Claims6
A method of describing a surface of an object subjected to processing that changes the shape of the surface comprising:
- dividing an analysis volume including an object having a surface and a volume filling part of the analysis volume into a plurality of three-dimensional cells, each cell having a cell volume;
- defining an initial volume ratio for each cell, the initial volume ratio for each cell equaling the volume of the object within that cell to the volume of that cell;
- computing the rate at which a substance flows into and out of each cell during a process changing the shape of the surface of the object for every time period .DELTA.t during a treatment period t.sub.o, where t.sub.o is much longer than .DELTA.t;
- computing a volume ratio for each cell from the initial volume ratio and the rates at which the substance flows into and out of the respective cell for every time period .DELTA.t;
- after lapse of the time t.sub.o, connecting the cells having a volume ratio with a predetermined value to describe the surface of the object;
- and
- graphically displaying the described surface.
Dependencies are inferred from the claim text.