查询词典 cylindrical shell

The cylindrical shell of open circumambience with both ends simply supported and the cylindrical shell with clamped ends are analyzed, then the cylindrical shell of close circumambience with simple support and the other end clamped along straight edges are analyzed.

分析了两端简支的封闭圆柱壳、两端固定的封闭圆柱壳和两端简支直边固定的开敞圆柱壳的振动特性，同时研究了环向半波数对圆柱壳固有频率的影响，并给出了不同边界条件的振型图。

Weak formulation of equilibrium equations including boundary conditions of laminated cylindrical shell is presented, thermal stresses mixed equation of closed continuous cylindrical shell is established.

建立了弹性力学基本方程的弱形式，从而得到叠层连续柱壳混合状态方程和边界条件放在一起的算子方程，扩大了求解的空间，给出了叠层连续闭口柱壳在热荷载和机械荷载作用下的解析解。

Weak formulation of equilibrium equations including boundary conditions of laminated cylindrical shell are presented, and thermal stresses mixed state equation for axisymmetric problem of closed cantilever cylindrical shell is established.

导出层合柱壳轴对称问题的平衡方程和边界条件的弱形式，提供了方程和边界条件放在一起的算子形式，建立了悬臂柱壳轴对称问题的热应力混合方程，给出了正交异性层合悬臂柱壳在热荷载和机械荷载作用下的弱形式解·本文提出的方法弱化了求解方程和边界条件，化解了问题，具有一般性并便于推

At the time of some modeling in structure, according to the characteristic of the rotating shell, the article adopt finite strip method to analyse to the shell, and discretes the rotating shell along the axis to a series of cylindrical shell to set up mold of curved surface ,not only guarantee to calculate the precision as well as raise the efficiency, but can deal with more complicated structure.

在结构部分建模时，根据旋转壳体的特点，对壳体采用有限条法进行分析，将旋转壳沿轴向离散成一系列的锥状或柱状条，对结构旋转曲面进行建模，既保证计算精度又能提高效率，而且可以处理比较复杂的组合结构。

In general, the deformation pattern of ellipse shaped shell in dieless spinning is similar to that of a rotary one. Therefore, it is possible to spin a deep elliptic cylindrical shell if a cylindroid mandrel is adopted.

从总体上看，椭圆形锥壳零件的无芯模旋压和回转形锥壳无芯模旋压的变形规律相类似，由此可以推测，利用椭圆柱形芯模实现椭圆形深筒零件的旋压也是可能的。

The far field sound pressure levels of the cylindrical shell and spherical shell excited by an exterior point load are measured, and a good agreement between the theoretical results and the test results shows that the theoretical method and corresponding results in this dissertation are correct.

主要研究内容：(1)建立了考虑流固耦合作用并在流体流动条件下部分充液或者部分浸没圆柱壳体运动方程，应用波数域法和传递矩阵法得到了该类壳体振动响应的径向波数域速度，进而应用平稳相位法得到了该类壳体辐射声场的预估理论模型。

Cylindrical shell is a element structure style, its pressure hull is ring stiffened cylindrical shell.

潜艇的基本结构形式是圆柱壳体，其耐压结构由圆柱壳和加强肋组成。

The structures of cylindrical shell and spherical shell are basic components and widely used in industrial fields.

圆柱壳、球壳结构是工程领域中普遍应用的基本构件，研究该类壳体结构流固耦合辐射声场，对国防武器装备隐身技术的进步、工程结构的噪声控制及现代机电产品的低噪声优化设计等都具有重要的理论价值和现实意义。

The methods of discretization is used in the vertical direction to the silo structure ,thus establish cylindrical shell unit, cone shell unit , plate unit , foundation unit, and its semi-analytic displacement function A compute program compiled is used to calculate the static displacement and free vibratioa

本文对筒仓结构进行整体离散，构造了各种单元半解析的位移函数，建立环壳单元、锥壳单元、板单元、地基单元。并编制了程序，计算了各结线的静位移及其自由振动的频率和振型。

We can lead out the equivalent border integral equation by Green the second equation,dividing the inner border in the liquid into a series strip of awls shell or cylindrical shell ,and solve border integral equation along different segment of border, then lead out border integral equation.

由Green第二恒等式导出等价的边界积分方程，将液体内边界分成一系列锥壳或柱壳状条，对边界积分方程进行分段积分，导出边界元格式方程。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。