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1)  retrieval of three-dimensional rigid body displacement
三维刚体位移重构
2)  rigid displacement
刚体位移
1.
Aiming at the characteristics and problems on rib-hoisting of long span CFST arch bridge,the optimization theory was introduced to predict the cable tension and pre-camber value,and the rigid displacement caused by rotational displacement continuum was also considered.
方法采用最优化理论对扣索初张力和预抬高值进行预测求解,在安装第一个钢管拱肋节段时,把合拢段除外的其余所有梁段有限元模型一次生成,以考虑节段间转角连续引起的刚体位移,施工控制的目标为合拢前各钢管拱肋节段高程控制点的标高误差满足要求,采用一阶分析法对节段安装预抬高值进行正装迭代优化求解。
2.
However, the rigid displacement which is comprised in the process makes the analysis more complex.
索穹顶结构的成形分析是该体系的基础问题,由于包含刚体位移使得跟踪难度相当大。
3.
The basic unknown quantities in this method are the rigid displacements of the blockelements.
它以块体单元的刚体位移为基本未知量,根据块体在外力和缝面应力作用下的平衡条件、变形协调条件和缝面材料的本构关系,采用变分原理导出块体单元法的支配方程。
3)  rigid displacements
刚体位移
1.
The basic unknown quantities are the rigid displacements and the average strains of the block elements.
以块体单元形心的刚体位移和块体的平均应变作为基本未知量。
2.
It is found that the displacements can reach several 10 pixels, but most of them are rigid displacements and the deformational displacements are not over several pixels.
本文研究了散斑图像中所包含的位移信息后,发现一般情况下,表征被测物体表面变形的位移只有几个像素,而刚体位移却比变形位移大的多。
4)  rigid body displacement
刚体位移
1.
It is borne out by adding rigid body displacements in isoparametric shell element and solving numerical examples with several methods, that rigid displacement is so important for the convergence of shell element, shouldn t be neglected.
给出了等参壳单元中补充刚体位移的又一方法,通过算例分析说明了刚体位移对壳单元解的收敛性影响。
5)  reconstruction of 3-D objects
三维物体重构
6)  three-dimensional displacement
三维位移
1.
A method for three-dimensional displacement measurement by separating out-of-plane displacement from in-plane displacement is presented.
提出一种可将离面位移与面内位移分离的三维位移计算方法。
补充资料:三维定量构效关系
分子式:
CAS号:

性质:根据化合物和生物大分子的三维结构进行定量构效关系(QSAR)的研究。实际上是分子图形学与    QSAR相结合进行药物的构效关系研究的一种方法。是研究药物与受体间的相互作用、推测受体的图象及进行药物设计的有力工具。

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