几何稳定性 meaning in Chinese

geometric stability

The cable - strut tensile structures are the self - stress equilibrium systems composed by tensional cables and struts . in this paper , the basic concept of the structures was described . the analysis methods of the structural characteristics ( statically and kinematically determinate or indeterminate ) and the geometrical stability were presented . it is indicated that the cable - strut tensile structures are in stable equilibrium with first - order infinitesimal mechanisms . the ranks of equilibrium matrix were calculated by employing the singular value decomposition , and the independent modes of inextensional mechanisms and the states of self - stress were also obtained in the same way . this paper contains some typical examples which illustrate all of the main points of the work
索杆张力结构是指由张力索和压杆组成的、具有预应力自平衡的新颖结构体系.本文详细阐述这种结构的基本概念和结构特征，讨论结构静动定体系特性和几何稳定性判定分析方法，指出索杆张力结构应具有一阶无穷小机构的几何稳定体系.文中采用奇异值分解方法计算结构平衡矩阵的秩，并计算独立机构位移模态和自应力模态.最后，对几种典型的索杆张力结构进行了算例分析