展开了对该平台在波浪作用下载荷的分析计算，在此基础上对主体结构进行了三维有限元强度分析。
The load analysis and calculation under wave action of this platform is developed, on this base, a three dimensional finite element strength analysis for main structural body is conducted.
对利用三维光弹性试验数据计算应力强度因子k_i，提出一种新的算法——综合法。
A synthetic method to calculate stress intensity factor KI by use of the data obtained in the experiment of three dimensional photoelasticity is developed in this paper.
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。
The 3-d finite element model of bolt is calculated by the method of contact analysis, and the fatigue strength of bolt is checked.
通过三维光弹实验测定了轴表面横向半椭圆裂纹的应力强度因子（SIF），并计算了与光弹轴裂纹几何及当地应力相对应的无限大体的SIF，从而求得SIF修正系数。
The SIF and its correction factor of the transverse surface semi-elliptic crack of a photoelastic axle are tested and studied with the method of three dimensional photo-elastics.
本文从图像立体视觉出发，提出了一种利用目标照片进行三维重建进而计算其目标回波强度的方法。
In this paper, based on image stereovision, a method used for 3-d reconstruction of target image is introduced, and according to this method, target strength is calculated.
通过三维边界元计算分析表明，切槽宽度越大，无量纲应力强度因子的标定值就越大；
Our 3D BEM(Boundary Element Method) calculation shows that the larger the notch width is, the bigger the error makes for the dimensionless stress intensity factor.
采用弹性力学理论及正交各向异性材料三维弹性理论，利用相应的强度准则对复合层合管进行强度分析计算。
The strength analysis and calculation have been achieved by use of the linear elastic theory, elastic theory of 3 dimension orthotropic materials and relevant strength criterion.
在船体结构强度直接计算方法中，需要建立三维有限元模型，船体所受到的外载荷也应相应地转化为有限元节点力。
It is necessary to set up a 3-d finite element model and to convert the external loads acting on the hull into nodal forces of finite element in the direct strength calculation of hull structure.
在船体结构强度直接计算方法中，需要建立三维有限元模型，船体所受到的外载荷也应相应地转化为有限元节点力。
It is necessary to set up a 3-d finite element model and to convert the external loads acting on the hull into nodal forces of finite element in the direct strength calculation of hull structure.
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