• 本文利用边界方法分析厚度挠度问题

    In this paper, we analyse the large deflection problem of the shallow spherical shells with variable thickness by means of boundary element method.

    dict.cnki.net

  • 右图中的是围绕碳原子电子云图像。 它们分别是径向对称中间节点扁球形状,sp原子轨道给出电子密度图。

    There’s a radially symmetric blob, and a double-lobed blob with a node in the middle – just like the patterns of electron density that the s and p atomic orbitals give rise to.

    article.yeeyan.org

  • 本文对文克勒弹性地基上中厚度弯曲自由振动问题理论性研究。

    This paper is concerned with the theoretical investigation of the bending and frees vibrations problems of moderately thick shallow spherical shells on the Winkler elastic foundations.

    www.dictall.com

  • 精密仪器热敏弹性元件中,双层金属中心开占有很重要的地位。

    Bimetallic shallow spherical shell is an important elastic element for thermal sensitivity in precision instrument.

    dict.cnki.net

  • 本文对不同轴长比不同不锈钢壳体进行了整体无模形成实验研究理论探讨。

    Experiments and theoretical analysis are made for the integral hydro-bulge forming technology of oblate spheroidic shells of various axial length ratios and petal Numbers.

    www.dictall.com

  • 本文研究磁场作用于导体、磁导体力矩。

    In this paper, the problem of electromagnetic stress tensor of the oblate spheroidal conductor in an electric field is studied.

    dict.cnki.net

  • 本文利用边界方法分析厚度非线性问题。

    In this paper, we analyse the shallow spherical shells with variable thickness by the boundary element method.

    dict.cnki.net

  • 本文采用解析方法研究中心分布载荷中心集中力联合作用,圆底非线性稳定性问题

    Using a semi-analytical method, the nonlinear stability of a spherical shallow shell under centrally distributed and concentrated loads is investigated in this paper.

    dict.cnki.net

  • 函数函数配点法计算夹层夹层非线性弯曲

    Taken power function as a trial function, nonlinear bending of circular sandwich plates and shallow spherical sandwich shells was discussed by means of point collocation.

    www.dictall.com

  • 基于瞬时变分原理样条函数理论,建立动力方程

    Based on instantaneous potential energy principle and spline interpolate function, the dynamic equation of flat spherical shell is derived.

    www.dictall.com

  • 证明不是真的而是而且计算平度

    He shows that the earth is not a true sphere but an oblate spheroid and calculates the flattering.

    http://chazidian.com

  • 扁球壳代替缺陷部分,把其余部分作用简化弹性约束

    The imperfect part of a spherical shell is taken as a shallow spherical shell and the function of the remainder is simplified as the elastic constraints.

    www.dictall.com

  • 对薄壁结构撞击刚性动态响应特性进行研究

    Dynamic response and energy absorbing characteristics of shallow spherical shell structures when impacting a rigid plate are studied here.

    www.dictall.com

  • 研究了用于传感器弹性元件波纹非线性动态屈曲问题

    In this paper, the problem of nonlinear dynamic buckling of corrugated shallow spherical shell used sensor component is studied.

    danci.911cha.com

  • 建立了正弦波纹非线性强迫振动微分方程

    The differential equations of nonlinear vibration of the shell were obtained.

    dict.cnki.net

  • 使用LS -DYNA软件建立了薄壁结构撞击刚性有限元模型,并通过试验结果模型有效性进行了验证。

    The finite element model of shallow spherical shell structures impacting a rigid plate is developed using the software LS-DYNA.

    dict.cnki.net

  • 本文给出了一种研究圆柱正交异性非线性轴对称自由振动新的时间方法

    A new time-mode approach to nonlinear axisymmetric free vibrations of cylindrically orthotropic thin shallow spherical shells is presented in this paper.

    dict.cnki.net

  • 论文系统研究工艺条件多气孔粒度堆积密度等特征性能参数影响规律

    The influences of the process condition to the properties of SPMP as bulk density and average diameter were investigated by the numbers.

    dict.cnki.net

  • 导出了基于屈服准则钢筋混凝土屈服条件利用此屈服条件求解出其极限荷载。

    The yield conditions of axisymmetric circular plate and shallow spherical shell of reinforced concrete based on Twin shear stress yield criterion are presented in the paper.

    www.dictall.com

  • 本文介绍了回转双曲金字塔型网结构的设计选型

    In this paper, designs and form selections on flat spherical shell, rotatory shell, curved surface shell and pyramidal shell are introduced.

    dict.cnki.net

  • 本文有限元地下挠变内力进行分析计算

    This paper deals with the calculation or deflections and internal forces of shallow spherical shells under external uniform pressure by means of finite element method.

    dict.cnki.net

  • 本文给出一种简易方法分析具有边界

    A very simple method is suggested in this paper to analyze shallow spherical shells, especially when simply supported boundary is considered.

    dict.cnki.net

  • 自由装填试验表明采用大弧有效提高装填密度

    The free loading test results in simulated cartridge show that the use of oblate spherical powder could be applied to increase the loading density effectively.

    dict.cnki.net

  • 研究弧厚成型工艺及其口径火炮装填密度装药中的应用可行性

    This paper deals with the forming technique of the oblate spherical powder and the feasibility of applying it to the large caliber gun propellant charge with high loading density.

    dict.cnki.net

  • 利用密闭爆发器试验研究了弧厚钝感定容燃烧性能

    The isovolumetric burning performance of deep deterred oblate spherical powder(DDOSP) with large web is investigated by the closed bomb test.

    www.dictall.com

  • 燃烧实验研究表明通过调节感剂加入时间因素可以有效实现燃烧渐增性。

    The closed bomb burning experiments indicated that the burning progression could realize when the factors of deterrent quantity and deterring time were regulated.

    dict.cnki.net

  • 本文提供一种级数解法

    In this paper a series solution of spherical shallow shell with circular base is given.

    dict.cnki.net

  • 的,需要注入空气

    The ball is flat and needs air.

    www.tingroom.com

  • 的,需要注入空气

    Thee ball is flat and needs air.

    www3.060s.com

  • 如果体重达10体型像一个被挤沙滩那么胃口大增也并不奇怪

    But if you weigh 10lb and resemble a squashed beach ball, it's not surprising if your appetite stretches to something more filling.

    www.wangxiao.cn

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