High precision numerical integral on free surface boundary of 3-D unsteady seepage problem;
三维非恒定渗流自由面边界积分项的高精度数值积分
Mixed fixed-point FE method for seepage problems with free surfaces;
求解渗流自由面的有限元混合不动点法
Improvement of moving mesh method in solving seepage problem with free surface and its application;
求解带自由面渗流问题移动网格法的改进及其工程应用
Numerical simulation of viscous flow with free-surface around full ships;
带自由面肥大船粘性绕流场的数值模拟
On the numerical dispersion errors of the boundary element method in free-surface potential flow problems
自由面势流问题边界元法的数值色散误差
The main objective of the present work is to improve the accuracy of the Extended Pressure (EP) method in simulating steady seepage problems with a free-surface.
为了提高EP(Extended Pressure)法模拟具有自由面的稳定渗流问题的计算精度,通过展开基于EP法的控制方程离散格式,进行了一维和二维稳定渗流误差分析,指出了分段连续函数h_ε(p)中的参数ε对EP法的计算精度和收敛过程影响显著,并依据自由面处压强水头的不连续变化,最终提出了参数ε的合理取值。
Based on mesoscopic damage mechanics,numerical code RFPA~(2D)(dynamic version) is developed to simulate the spallation failure process of inhomogeneous medium induced by reflection of stress wave,then the behaviour and mechanism of spallation process under different free faces are numerically analyzed and compared.
采用基于细观损伤力学基础上开发的动态版岩石破坏过程分析系统RFPA2D数值模拟软件,对冲击载荷作用下非均匀介质中应力波反射诱发层裂过程进行了数值模拟,重点探讨了不同自由面情况对层裂过程的影响。
The influence of the existence of the free face on the blasting effect is analyzed from point of view of rock cracking which come from the wave of blasting stress.
从爆破应力波破岩的角度 ,分析了自由面的存在对爆破效果的影响 ,比较了不同自由面条件的爆破效果和炸药耗量 ,对设计施工具有重要意
According to blasting vibration experiments with one free face,two free faces and three free faces,the influence law of blasting vibration wave strength to quantity of free faces was set up.
通过在1个、2个和3个自由面状态的爆破振动试验,得出自由面个数的多少对爆破地震强度的影响规律。
Research on tool path generating technique for free surface with STEP-NC;
基于STEP-NC的自由曲面刀具路径生成术的研究
An algorithm based on bicubic B-spline surface interpolation for free surface design;
基于双三次B样条插值的空间结构自由曲面
Non-linear error in the NC machining of free surface and setting of the tool s step;
自由曲面数控加工中非线性误差分析与走刀步长的确定
Method of efficient continuous plastic forming for freeform surface part;
自由曲面工件的连续高效塑性成形方法
Research on the interference areas determination algorithm of freeform surface in NC machining;
数控加工中自由曲面干涉区域求取算法的研究
A new method for reconstruction of freeform surface;
关于自由曲面重建的一种新方法
A moving free interface is formed by interaction between welding arc and weld pool.
电弧与熔池的交互作用在两者之间形成了一个不断移动变化的自由界面,对界面的处理是实现电弧与熔池交互耦合的关键。
People only consider polarization characters of compressional and shear wavesbut neglect free interface effect in separating shear wave from compressional wave.
以往分离纵、横渡仅考虑了纵横波的编报特性,未考虑自由界面的影响。
Based-on the Projection Algorithm of Point Set Aurface for Free Form Surface Matching
基于点集曲面投影算法的自由曲面匹配
What is the best algorithm of localization and comparison of two free-from surfaces.
自由曲面在进行比较时,对自由曲面的精确定位方法及其解法。
Modeling Free-form Surface Based on Projection Data, Normal Vectors and Principal Curvatures of Controlling Points;
基于投影、法矢和主曲率的自由曲面造型
Numeric and curve parameters for freeform surface feature models
自由曲面特征模型中的数值和曲线参数
Design of ultra-thin projection system with curved screen based on Zernike free-form surfaces
用Zernike自由曲面设计弯曲屏幕超薄投影系统
Research of tool path planning for free-form surface based on the hilbert's space filling curve
基于Hilbert填充曲线的自由曲面刀具路径规划研究
Design of engraving graphics on free-form surface based on curve projection
基于曲线投影的自由曲面雕刻图形设计
The Design and Manufacture of Free Form Automobile Headlight
自由曲面汽车车灯仿真设计与制造
Research on Subdivision Polishing and Trajectory Planning of Free-Form Surfaces;
自由曲面分片研抛与轨迹规划的研究
Research on Free Surface Flattening Algorithm and Numerical Control Machining;
自由曲面展开算法及其数控加工研究
Study on the Design of LED Illumination System Based on Freeform Surface;
基于自由曲面的LED照明系统研究
Tool Path Planning in NC Machining of Free-Form Surface;
自由曲面数控加工中的刀具路径规划
A Seeking Intersection Algorithms for Curves Surfaces Based on Envelopment of Encoding for Bounding Boxes;
基于包围盒的自由曲面求交算法研究
Rebuilding of Freeform Surface with Industrial Design Software;
工业设计软件中的自由曲面重构解析
Tool Path Planning for High Speed Milling of Free-form Surface with Toroidal Cutter
环形刀具高速铣削自由曲面轨迹规划
Design and Nc Machining of Freeform Surface in CATIA
基于CATIA的自由曲面的设计及数控加工
Freeform Lens Design for LED Illmination
实现LED照明的自由曲面透镜设计
Study of Fairing Free Curve and Surface Base on B-spline;
基于B样条的自由曲线曲面光顺研究
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