这主要是由于塑性成形数值模拟的高度非线性和大计算量特征，使得成形过程优化变得非常困难。
Optimization of forming process is a very difficult problem due to high nonlinearity and huge computational cost of numerical simulations.
采用塑性成形有限元分析软件DEFORM3D，对汽车启动器套筒冷挤压齿部成形过程进行了数值模拟。
Numerical simulation on cold extrusion process of automobile starter socket has been carried out by using the software DEFORM3D.
采用三维弹塑性有限元法对虎克式万向节热挤压成形过程进行了数值模拟分析。
This paper deals with the numerical simulation analysis of hot extrusion forming process of the Hooke's Joint using three-dimensional elastoplastic finite element method.
采用显式动力学弹塑性有限元方法，对平板轧制过程中咬入阶段的非稳定变形进行了数值模拟。
With the dynamic explicit elastic plastic finite element method, the unsteady deformation of the bite stage in slab rolling was simulated.
利用三维弹塑性有限元软件L S- DY NA对一种典型偏心轴类零件楔横轧成形进行了数值模拟，分析了其成形过程、应力应变场分布及工艺特点。
The cross wedge rolling deformation process of shaft parts with eccentric section was simulated with three-dimension finite element soft LS-DYNA by using elastic-plastic finite element method.
在此基础上，应用数值模拟方法研究了圆筒锻件扩孔过程的塑性变形及其主要影响因素。
On the basis of this, the plastic deformation of large-scale cylinder pieces under reaming process and its main influencing factors were analyzed using finite element simulation means.
针对钢板冷却发生翘曲变形的问题，利用热弹塑性有限元法对中厚板冷却过程的温度场及应力应变场进行数值模拟。
The temperature and stress-strain field of steel plate runout table cooling are simulated using thermo-elastoplastic finite element method.
建立了汽车轮毂端盖拉伸成形三维弹塑性有限元模型，并利用MARC软件对其拉伸变形过程进行了数值模拟。
The 3D elastic-plastic finite element model for the stretch forming of automobile wheel hub end housing was established, and the deep drawing process was numerically simulated by MARC software.
作为二维温度场数值模拟的应用，分析了热塑性塑料挤出成型冷却过程中的温度场。
As the application of 2d temperature field numerical simulation, the cooling procedure of thermoplastic extrusion processing has been analyzed.
通过接触单元来数值模拟啮合齿的接触过程，建立了基于整体有限元分析的齿啮式快开压力容器塑性载荷计算方法。
The proposed criterion is used to evaluate plastic loads in pressure vessel design by analysis using elastic-plastic finite element analysis to guard gross plastic deformation of pressure vessel.
通过接触单元来数值模拟啮合齿的接触过程，建立了基于整体有限元分析的齿啮式快开压力容器塑性载荷计算方法。
The proposed criterion is used to evaluate plastic loads in pressure vessel design by analysis using elastic-plastic finite element analysis to guard gross plastic deformation of pressure vessel.
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