Based on the four-element model, the equation of the stress relaxation process is developed using the principle of Boltgation superposition in this paper.
以四元件模型为基础，利用玻尔兹曼叠加原理建立了纱线应力松弛变化过程的理论方程，并分别对彩棉喷气涡流纺及环锭纺纱线进行松弛实验。
First carry on the self libration analysis to the bridge, use spatial four nodes elastic shell element SHELL63 and spatial two nodes elastic beam element BEAM44 to model the bridge.
首先对大桥进行自振特性分析，分别采用空间四节点弹性壳单元SHELL63和空间二节点弹性梁单元BEAM 44单元进行建模。
Four-node degenerated shell element and rigid shell element are used in our FEM model.
四结点蜕化壳单元和刚体壳单元分别用来建立权和模具的有限元模型；
Methods Four different load patterns were added to the three-dimensional finite element model of the maxillary first molar established.
方法采用已建立的上颌第一磨牙三维有限元模型。使用四种不同负荷方式对模型进行加载。
In this paper, four-nodal isoparametric element program DDKEPL by using Duncan's nonlinear-elastic model for soil is presented.
本文对土体采用邓肯-张非线性弹性模型编制了四节点等参元有限元程序ddkepl。
Combining general four-node element around crack tip element, a hybrid-stress finite element model is developed, Accordingly a hybrid finite element method to fo.
与四节点单元相结合，提出一种求解自由边界面端部广义应力强度因子的杂交元法。
The model divided GUI into four-layers: Windows framework layer, interface element layer, functional structure layer and running record layer.
模型将GUI分为窗口框架层、界面元素层、功能结构层和运行记录层四层。
The model divided GUI into four-layers: Windows framework layer, interface element layer, functional structure layer and running record layer.
模型将GUI分为窗口框架层、界面元素层、功能结构层和运行记录层四层。
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