A new kind of rectangle flat-shell element, GCTTRS24, for thick and thin shells was constructed.
构造了一种新的厚壳和薄壳通用的矩形平板壳元gcttrs24。
The three dimensional variational difference method was applied to dynamic analysis of thin shells.
利用三维变分差分方法研究薄壳的动力分析。
The result shows that acoustic optimization of thin shells of Engine samp may reduce perfectly the radiated noise.
结果表明，对内燃机薄壳结构进行声学优化，可以大大减小噪声辐射。
This paper gives the exact relations between strains and displacements for large deformation of elastic thin shells.
本文给出了弹性薄壳大变形时应变与位移之间的精确关系。
The paper deals with the problem of limit analysis of structures of combined axisymmetrical thin shells of revolution.
本文研究旋转轴对称组合壳体结构的极限分析问题。
Thus, the fully asymptotic expansion of the homogeneous solution within the accuracy of theory of thin shells is obtained.
这样，轴对称正交异性圆环壳的齐次解第一次有了达到薄壳理论精度的完全的渐近展开。
The calculating results show that the method of stiffness equivalence can be used for the calculation of three-layer thin shells.
刚度等效方法可以用于其它多层薄壁壳体的计算。
And this element may become a circumferential stiffening members of the stiffened thin shells of revolution in the structure stability analysis.
在结构稳定性分析中，它又可以作为加筋旋转薄壳的一个环向单元。
In this paper, large amplitude variational equation of conical shallow thin shells is derived according to the principle of minimal action quantity.
本文首先用最小作用量原理推导出扁薄锥壳大振幅的变分方程。
The basic fluid-solid interaction formulas for a shell in fluid are given using elasticity theory of thin shells and fundamental equations of fluid mechanics.
应用薄壳弹性理论及流体力学基本方程，给出了圆柱壳在流体中流固耦合问题的基本关系式。
Using the root of the characteristic equation, this paper studies the asymptotic solution of the characteristic equation of the open circular cylindrical thin shells.
本文利用特征方程根的性质，研究了开口圆柱薄壳精确微分方程的特征方程的渐近解。
At 250 parts per million CO2, the shellfish grew vigorously, and at 750 PPM and higher they were crippled, feeble creatures with thin shells and weak connective tissues.
在CO2含量为百万分之250时，甲壳类生物生长得很好，而到了百万分之750或更高时，它们的甲壳变薄、连结物质变弱，成了残破而虚弱的生物。
The second approximation of the solution is of the same accuracy as theory of thin shells, and the first approximation is also sufficiently precise for engineering computation.
二次近似解达到薄壳理论所具有的精度，一次近似解也具有足够精度。
The shells became so thin that they shattered before the babies hatched.
蛋壳变得非常薄，以至于在婴儿孵化之前就被打碎了。
The result is an unusual bunch of sea lilies, brittle stars, giant ribbon worms and molluscs that are armoured only with thin, soft shells.
这种气候造就了不同寻常的海百合群落、海蛇尾、巨大的海带和只有薄壳的软体动物。
The structure of a star can often be thought of as a series of thin nested shells, somewhat like an onion.
恒星的结构经常被想象成一系列套在一起的薄层，就像洋葱一样。
First, the fundamental equations of flat membrane structures are obtained by applying the non-moment theory of thin shallow shells.
首先，利用扁壳的无矩理论得到了平坦薄膜结构的基本力学方程。
A new time-mode approach to nonlinear axisymmetric free vibrations of cylindrically orthotropic thin shallow spherical shells is presented in this paper.
本文给出了一种研究圆柱正交异性扁薄球壳非线性轴对称自由振动的新的时间模方法。
The advanced research and application of thin spherical shell joints used in space trusses and grid shells is presented in this paper.
本文对应用于空间网架、网壳结构的薄壁球壳节点的研究进展进行了综合述评。
Numerical methods are adopted in this thesis to investigate the stability behavior of thin cylindrical shells with rectangular openings subject to axial compression.
本文利用数值方法系统研究了开有矩形孔的薄壁圆柱壳在轴压作用下的稳定性能。
A method for printing on thin plastic shells for helmets or vehicle fascias has the following steps.
一个头盔上印上或车辆的盖板厚的塑料外壳方法有以下步骤。
As a type of combined thin-walled shells of revolution on local supports, the structure behavior and failure criteria of silos supported on engaged columns are very complex.
作为一种非均匀支承条件下的组合旋转薄壳结构，仓壁柱承钢筒仓的受力行为与破坏准则相当复杂。
The nonlinear thermal vibration characteristic of the composite thin-cylindrical shells under linear temperature field is investigated by the ANSYS parametric design language(APDL).
采用有限元软件ANSYS参数设计语言（APDL）实现复合材料薄壁圆柱壳结构在线性分布温度场作用下的非线性热振动特性分析。
The influences of damage and damage evolution on the nonlinear dynamic response and dynamic buckling for thin shallow spherical shells with circular hole are investigated.
研究损伤对开孔浅球壳非线性动力响应与动力屈曲的影响。
The elastic plastic buckling analysis is completed on bucking load and buckling mode of thin wall cylindrical shells fully filled with liquid under axial compression.
对充满液体的薄壁圆柱壳经受轴向压缩时的屈曲载荷和屈曲模态进行了弹塑性屈曲分析。
The influence of an exponential volume fraction law on the vibration frequencies of thin functionally graded cylindrical shells was studied.
研究了指数型体积分数对功能梯度薄圆柱壳振动频率的影响。
The complexity of stability of thin circular cylindrical shells composed of composite materials is discussed and a survey is presented.
本文讨论了复合材料圆柱壳体稳定性的复杂性，总结了已经取得的研究成果，并与有关实验进行了比较。
Random vibration response analysis of thin-shells excited by acoustic loads is one of the important tasks of sonic fatigue investigation.
噪声载荷作用下薄壁壳体的振动应力响应分析是声疲劳研究的重要任务之一。
By solving this equation, a simplified solution having the same accuracy as thin walled shell theory for conical shells is derived.
求解该方程序，导出了具有薄壳理论同样精度的圆锥壳的简化解。
First, the equations of vibration were established using the theory of thin shallow shells.
首先利用扁壳体理论建立了大跨柔性屋盖的振动方程。
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