对GDCN的建模技术进行分析后，提出了基于仿真分析和元模型技术的领域级约束建模的有效方法。

Then, the modeling method of GDCN was analyzed, and the effective modeling method of the domain constraints based on simulation and Meta modeling was presented.

youdao

为了能在基于PC平台的虚拟现实中实现更具真实感的人体运动仿真，该文提出一种改进的约束求解方法，将人体建模为基于约束关节树的骨骼结构。

In order to make human motion simulation more realistic in Virtual Reality on PC platform, this paper introduces an improved method of modeling human body as a tree with constraint joints.

youdao

基于有限元分析方法，对运煤敞车的结构简化、单元选取、边界及约束处理等建模技术进行阐述。

The structure simplification of the open boxcar, choosing elements type, and disposing the boundary and restriction of the model are introduced.

youdao