An analysis was made on the Zhougongzhai arch dam under basic load combination and overloading of hydraulic pressure by use of 3-d nonlinear finite element method.
用三维非线性有限单元法对周公宅拱坝进行了基本荷载组合下的非线性分析和水压超载分析。
The 3-d finite element model of bolt is calculated by the method of contact analysis, and the fatigue strength of bolt is checked.
并采用接触分析法对螺栓的应力应变进行了三维有限元计算，对螺栓的疲劳强度进行了校核。
Method: Gait initiation of normal subjects in level was observed with human motion analysis system based common CCD and 3-d force platforms.
方法：使用基于CCD和三维测力平台的人体运动分析系统，研究正常人水平地面起步过程的步态特征。
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