因此对有初始几何缺陷的冷却塔风筒壁的分析研究是很有必要的。
Therefore, it is of great significance to study the cooling tower shell with initial geometrical imperfections.
结果表明，考虑初始几何缺陷会使得拱桥的主要自振频率降低，振型发生改变。
Results showed that the defects in the arch decreased the frequency of free vibration and changed the modes.
在有限元模拟中，分析了初始几何缺陷对壳体起皱的临界压力和起皱形态的影响。
The effect of the initial geometrical imperfection on the buckling critical pressure and buckling model has been taken into account in the finite element simulation.
初始几何缺陷对板片结构体系稳定性的影响是板片结构计算和设计中的一个关键问题。
The effect of initial geometrical imperfections on the stability of sheet space structure is a key to its design and calculation.
其次，讨论了典型的轴对称形式的初始几何缺陷对复合材料圆柱壳轴压稳定性的影响。
Secondly, the influence of typical axisymmetrical initial geometrical imperfections on the stability of composite cylindrical shells under axial compression is discussed.
分析材料非线性、阻尼、初始几何缺陷、初始静荷载等因素对结构动力稳定性的影响。
The effects of material nonlinearity, damping, initial geometric imperfection and initial static load on structure dynamic stability have been analyzed.
计算中考虑了残余应力和初始几何缺陷的影响，应力应变关系取理想弹塑性本构关系。
The effects of the residual stress and the initial geometrical defects were considered during the calculations, and an ideal elastoplastic constitutive relation was taken as …
讨论了横向剪切变形，曲板几何参数，铺层数，铺展方式和初始几何缺陷等各种参数变化的影响。
The effects played by transverse shear deformation, panel geometric parameters, total number of plies, fiber orientation, and initial geometric imperfections are studied.
采用弹塑性有限元法，结合非线性屈曲理论，分析了受初始几何缺陷影响的管线钢管在内压作用下的非线性屈曲。
Secondly, with the first mode of eigenvalue analysis on SSRS as the initial disfigurement, nonlinear buckling loads are obtained by nonlinear buckling analysis.
把辊轧成型的C形冷弯薄壁型钢构件切割成若干短柱，在短柱中将产生不同程度的歪曲变形，进而引起附加的初始几何缺陷。
Cutting roll-formed steel C-section to stub columns will produce different extent of cross section distortion along the lengths and cause additional initial geometric imperfections.
节点位置偏差是影响大跨度空间结构整体稳定性的一个主要初始几何缺陷，但目前关于实际结构中节点位置缺陷的资料还很少。
The initial deviations of the joint positions are the main initial geometrical imperfections that affect the stability behaviors of the long-span spatial structures.
最后对空储液罐的特征值问题进行了多达近万自由度的计算分析，得到了一些成果，其中有新的发现：（1）空储液罐的多波现象在无初始几何缺陷时依然存在，而且出现在低阶振型中；
In these results there are some new findings:(1) when there is not initial geometry defect, multi-waves phenomena still exist and are presented in low orders in vibrative mode shape;
另外，还建立了考虑双层网格扁壳结构几何初始缺陷影响的非线性弯曲方程。
Besides, he also established the nonlinear bending equations considering the influence of initial geometric defects in the double-deck reticulated shallow shell structures.
计算内容包括静力计算、线性屈曲分析以及考虑初始缺陷的几何非线性稳定性计算。
The stability calculation has three parts, including static calculation, linear buckling analysis and geometrical nonlinear stability analysis.
基于初始缺陷的定义式，推导出有初始缺陷的圆柱壳的几何方程。
The stress displacement equations of cylindrical shell with initial imperfection are deduced on the basis of definitions of imperfection.
基于初始缺陷的定义式，推导出有初始缺陷的圆柱壳的几何方程。
The stress displacement equations of cylindrical shell with initial imperfection are deduced on the basis of definitions of imperfection.
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