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    • 8. 发明授权
    • Method for automatic optimization of finite difference grids in simulator
    • 模拟器中有限差分网格自动优化的方法
    • US5991526A
    • 1999-11-23
    • US965525
    • 1997-11-06
    • Kazuhiro Igarashi
    • Kazuhiro Igarashi
    • G01M9/00G06F17/50G06F19/00G06T17/20G06F9/455
    • G06T17/20
    • Before the execution of simulation, variation rates at the grid points of functions for the calculation of intersections between grid points and the surface of the shape to be analyzed of a simulation model are calculated; new grid spacings are calculated by performing calculation so that the greater the variation rate the narrower the grid spacing; and where, with respect to these grid spacings, aspect ratios far deviate from 1, finite difference grids are automatically optimized by adjusting the grid spacings so that the aspect ratios approach 1. Furthermore, during the execution of simulation, the variation rates of functions, whose values are physical quantities at different grid points, are calculated, and finite difference grids are automatically optimized by performing calculation so that the greater the the variation rate the narrower the grid spacing.
    • 在执行仿真之前,计算网格点与计算模拟模型要分析的形状表面的交点功能的网格点的变化率; 通过执行计算来计算新的网格间距,使得变化率越大,网格间距越窄; 并且在这些网格间距方面,宽高比远离1,有限差分网格通过调整网格间距自动优化,使得纵横比接近1.此外,在模拟执行期间,功能的变化率, 其值是不同网格点的物理量,并且通过执行计算自动优化有限差分网格,使得变化率越大,网格间距越窄。