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- The initial deviations of the joint positions are the main initial geometrical imperfections that affect the stability behaviors of the long-span spatial structures. 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。
- initial geometrical imperfections 初始几何缺陷
- The nonlinear prebuckling deformations and initial geometric imperfections of the shell were both taken into account. 壳体屈曲的边界层理论被推广用于湿热环境的情况,相应的奇异摄动法用于确定层合圆柱薄壳的屈曲荷载和后屈曲平衡路径。
- By solving the dynamic buckling equation numerically, the effect of pre-load, impact yate and geometrical imperfection on critical impact load is studied. 文中考查了静力预载荷、冲击载荷速度以及初始几何缺陷对临界冲击载荷的影响。
- In general, two kinds of silos were not sensitive to eigenmode-affine geometric imperfections, especially the silo with columns extending to the silo wall. 总体而言,两类筒仓对这类初始缺陷并不敏感,特别是支柱延伸至仓壁的筒仓。
- A 3D-FEM method for analysis on stability of underground bifurcated pipe, with geometrical imperfection and initial gap between concrete liner, is introduced. 摘要考虑了钢岔管与混凝土垫层的初始缝隙和初始几何缺陷,给出了一套地下埋藏式钢岔管抗外压稳定性的三维有限元分析和求解方法。
- EFFECT OF INITIAL GEOMETRICAL IMPERFECTIONS ON STABILITY OF ULTRAHIGH PILLAR 初始几何缺陷对超高矿柱稳定性的影响
- He had only an imperfect understanding of his task. 他对自己的任务只是一知半解。
- Buckling of thin shells is generally sensitive to geometric imperfections, so precise surveys of initial geometric imperfections are essential for high quality shell buckling experiments. 摘要薄壳结构的屈曲通常对初始缺陷十分敏感,因此对几何初始缺陷的精确测量是高质量的壳体屈曲试验的必要环节。
- 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. 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。
- In second-order elastic analysis of the partially-braced steel frames, the initial geometric imperfections of overall frame as well as its individual member should not be neglected. 在钢框架二阶弹性分析中,结构整体初始几何缺陷和构件的初始几何缺陷是实际存在的,其影响不应忽略。
- Eigenmode-affine geometric imperfections were introduced in both GNA and GMNA of two kinds of column-supported silos to analyze the effects of imperfections on the stability behavior of the structure. 在两类筒仓的几何非线性分析、双重非线性分析中,均考察了以特征值模态分布的几何初始缺陷对结构稳定性能的影响。
- The effects of loading forms, geometricnonlinearity, initial geometric imperfections on the dynamic response and dynamicbuckling of antisymmetric cross-ply composite laminate are discussed. 讨论了载荷形式、几何非线性、初始缺陷等因素对非对称正交铺设层合板的动力响应及动力失稳的影响。
- Geometrical theorems grew out of empirical methods. 几何定理是从经验得出的。
- We live in an imperfect society. 我们生活在一个不完美的社会中。
- The quality or condition of being imperfect. 不完美不完美的状态或性质
- shell with initial geometrical imperfection 初始几何缺陷壳
- An incomplete or imperfect line of verse. 不完全的诗行或不完美的诗行
- Seen from above, the fields looked like a geometrical pattern. 从上面往下看,那些农田像是几何图案。
- EFFECTS OF INITIAL GEOMETRICAL IMPERFECTIONS ON DYNAMIC STABILITY OF RETICULATED SHELL STRUCTURES 初始几何缺陷对网壳结构静、动力稳定性承载力的影响