使用非等宽度毛坯情况下,窄板处金属体积少,网格畸变严重。
The deformation of nets is very big at narrow location due to less metal here when same width rib was filled with different width billet.
这种单元列式简单、求解精度高、可靠性好,尤其重要的是对单元网格畸变不敏感。
It is shown that the present element possesses the characteristics of high precision, reliable and easy to use, and the most important, less sensitive to mesh distortion.
这种单元列式简单、求解精度高、可靠性好,尤其重要的是对单元网格畸变不敏感。
It is shown that the present element possesses the characteristics of high precision, reliability and is easy to use. What is most important is that it is less sensitive to mesh distortion.
该方法避免了拉格朗日格式因网格畸变产生的数值困难,也克服了欧拉格式材料界面跟踪问题以及因非线性对流扩散项而引起的数值困难。
The MPM eliminates difficulty with mesh distortion as in the Lagrangian method, and with interface tracking and nonlinear convection term as in Eulerian scheme.
进行了一系列数值例题测试,表明单元RPAQ能自动消除闭锁现象,在由薄板到厚板的不同情况下,在各种网格畸变的情况下,都能体现出良好的精度和数值稳定性。
The results of numerical tests show that the element RPAQ is free from shear locking, insensitive to mesh distortion and very accurate and stable for both thin plate and thick plate.
更好的估计和焦距的透镜畸变能获得网格定位准确在尽可能多的图像尽可能的空间。
Better estimates of lens distortion and focal length will be obtained if the grid is positioned accurately over as much of the image space as possible.
特殊几何形状壁面附近局部贴体坐标网格的范围不宜太大,否则会引起计算结果的畸变。
The range of local body-fitting coordinate mesh adjacent to the wall with special geometry should not be too wide or extended, or it would cause the aberration of computational results.
目前普遍采用的传统等参元族对网格的曲边、直边畸变均十分敏感。
Traditional isoparametric elements are usually sensitive to various curved or straight edge mesh distortion.
分别以动态聚焦模块校正聚焦误差,以网格插值算法软件校正“枕形”畸变。
The focussing error is corrected by means of dynamic focussing module and the "pillow shaped" distortion is corrected with the software of the grid interpolating algorithm.
为此,论文提出了一种基于网格图像的几何校正算法,该算法运用分段插值的思想,利用分块低次插值去逼近几何畸变,达到高次插值的效果。
Therefore the authors put forward a calibration algorithm based on the grid image, which USES subdivision interpolation to approach the deformation and get a result of high-order interpolation.
根据镜头畸变的数学模型,利用平面圆形网格模板的网格交点来求取镜头的径向、切向和薄棱镜畸变系数。
Based the math model of lens distortion, the plane roundness gridding model is used to calculate the lens distortion coefficients of radial distortion and other non-linear factor.
同时,为避免由于电机定、转子相对运动而引起的气隙场域剖分网格的畸变问题,在气隙中引入了运动边界。
To avoid the mesh distortion in the airgap arising from the relative movement between the stator and rotor, the moving boundaries are incorporated into the finite element model.
在研究几何畸变模型的基础上,给出了一种基于网格点拟合直线误差的几何畸变校正方法,达到了很好的校正效果。
Based on the study of the model of geometric distortion, a correction method due to the linearity of crossing points in the image of grids were also advanced, which gained an ideal correction result.
计算结果与作者用阈值法测量的增益均匀性以及用哈特曼网格法测量的氙灯泵浦对激光波面畸变的影响是一致的。
The results obtained are good agreement with the experimental results of gain uniformity measured by threshold method and laser wavefront measured by Hartmann wave…
计算结果与作者用阈值法测量的增益均匀性以及用哈特曼网格法测量的氙灯泵浦对激光波面畸变的影响是一致的。
The results obtained are good agreement with the experimental results of gain uniformity measured by threshold method and laser wavefront measured by Hartmann wave…
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