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      spherical
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    FINITE ELEMENT ANALYSIS OF ELASTIC CONTACT PROBLEM OF AXISYMMETRIC OPENING IN SPHERICAL SHELL
    壳开口轴对称弹性接融问题有限元分析
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    STRESS ANALYSIS OF SPHERICAL SHELLS MADE OF FIBER-REINFORCED COMPOSITE BY LAMINATES
    纤维增强复合材料层合壳的应力分析
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    AN ANALYTICAL AND NUMERICAL STUDY OF ONE-DIMENSIONAL SPHERICAL AND CYLINDRICAL INVERSE STEFAN PROBLEM
    一维、柱Stefan反问题的分析和数值研究
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    Elastic Theory Solutions of Twisted Free Vibration problem for SPherical Shells
    壳扭转振动的弹性力学理论解
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    Momental Solution of Spherical Shells with Variably Nonlinear Section under Normal Pressure
    非线性变厚度壳正压力下有矩解
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  “spherical”译为未确定词的双语例句
    Nonlinear Axisymmetric Bending and Stability of Thin Spherical Shallow Shell with Variable Thickness under Uniformly Distributed Loads
    均布载荷作用下变厚度圆球扁薄壳的非线性轴对称弯曲和稳定性
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    ON THE NONLINEAR STABILITY OF THIN SPHERICAL SHALLOW SHELL WITH VARIABLE THICKNESS UNDER UNIFORMLY DISTRIBUTED LOADS
    均布载荷作用下变厚度圆球扁薄壳的非线性稳定性
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    Torsional Vibration Of Transversely Isotropic Spherical Shell
    横观各向同性圆球壳的自由扭转振动
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    CENTRIFUGAL INERTIA EFFECTS OF THE FLUID FLOWBETWEEN STEPPED SPHERICAL SURFACES
    CENTRIFUGAL INERTIA EFFECTS OF THE FLUID FLOW BETWEEN STEPPED SPHERICAL SURFACES
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    DEFORMATION AND STRESS ANALYSIS OF A ROTATING SPHERICAL SHELL OF TRANSVERSE ISOTROPY
    绕径旋转横观各向同性圆球壳的变形和应力分析
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  spherical
       We show that wonderful varieties are necessarily spherical (i.e., they are almost homogeneous under any Borel subgroup ofG).
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       Recently, there is a renewed interest in wonderful varieties of rank two since they were shown to hold a keystone position in the theory of spherical varieties, see [L], [BP], and [K].
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       In particular, we obtain a presentation of the Chow ring of any smooth, projective spherical variety.
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       We then give a combinatorial classification of reductive monoids by means of the theory of spherical varieties.
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       We prove that, for a real reductive algebraic group, they can be characterized as the spaces of real points of affine spherical homogeneous varieties of the complexified group.
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         In previous investigations exact yield conditions for axisymmetric shells are given in terms of four generalized stresses, n1, n2, m1, m2, In the present paper, the intensity of membrane stress, n, and the intensity of bending moment, m, are used to give the statical and kinematical yield surfaces for materials that obey the maximum shear stress criterion.The statical yield surface isThe kinematical yield surface isWhen the statical yield surface is multiplied by a factor 1.31, it becomes another kinematica...
            文献[1—3]已给出了轴对称旋转壳以四个广义内力n_1,n_2,m_1,m_2表达的精确屈服条件.本文对服从最大切应力准则的壳,给出了以膜力强度和力矩强度表达的静力屈服面n~2+m=1和机动屈服面2(n-1/2)~2十m=1,机动屈服面不超过静力屈服面的1.31倍.本文还应用这两个屈服面计算了受均布法向载荷作用下的简支和固定边球壳的极限载荷,改进了文献[4]给出的上下界.从给果中发现了球壳的极限载荷基本上只与一个壳体参数有关.最后还给出了周边简支可移的扁球壳极限载荷的上下界.
文摘来源
         A general theory for snap-through buckling of an open bimetallic shallow spherical shell under uniform temperature field is presented in this paper. It relates the critical buckling temperature both to physical and geometrical parameters of the shell, including the extent of its central opening as another important factor. Furthermore, they are expressed accordingly by various practical curves. While reducing to the special case of a closed shallow spherical shell, present theory appears to be i...
            本文提出了有关开顶双层金属球面扁壳在均匀温度场作用下的稳定性的一般理论,它给出临界跳跃温度与壳体的物理、几何诸参数之间的相互关系,包括其开顶牛径大小也作为一个重要因素.文中并将它们绘成相应的实用曲线.在封顶球面扁壳的简化特例情况下,新理论似与早期wittrick的计算结果趋近一致. 根据与Radkowski建议的坐标参考面的选择方法,我们将双层壳体的基本方程首先简化成与经典壳体理论相似的形式.再通过比拟,以作用于球面扁壳内外边界上的均匀分布的相当边界力矩来替换温度效应.然后采用文献[6]的简化方法作了必要的改进来求解方程.从数值计算的结果,文中给出了一些有趣的结论,它们对于工程上各种仪表弹性元件的设计具有一定的参考价值.
文摘来源
         In 1939, the importance of the nonlinear feature in the shell buckling problem was first pointed out in a most spectacular manner by von Karman and Tsien.but the mathematical difficulty is so great that progress has been slow after the first attempts. According to our experience, we should face the difficult barrier of solving nonlinear differential equations and an effective, simple, accurate method is required. On the other hand, modern rapid developements in technics, such as aeronautical, naval, structu...
            本文对边缘简单支承在边缘均布力矩作用下的弹性圆底扁薄球壳的非线性问题进行了研究。用我们提出的修正迭代法求出决定上下临界载荷的二次和三次近似方程。结果画成曲线以供工程应用.并将此结果和胡海昌的结果进行了比较,我们还研究了临界点,即上下临界载荷相重点附近的情况,并指出二次近似的适用范围。文末还附带得出本问题的特殊情况:相同边缘支承和载荷下的圆平板大挠度问题的刚度设计公式及p=0.3的相应曲线,并与黄择言用摄动法得到的结果进行了比较。
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