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动屈曲
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  dynamic buckling
     The development of research of inelastic dynamic buckling of cylindrical shells under axial impact is reviewed simply.
     简要论述承受轴向冲击载荷圆柱壳非弹性动屈曲响应的研究进展。
短句来源
     The Karman-Donnell kinetic equation is used to study the problem of the axiasymmetric ekasto-plastic dynamic buckling of cylildrical shells under fluid-Solid impact.
     采用Karman-Donnell运动方程研究轴向流固冲击载荷作用下的圆柱壳轴对称弹塑性动屈曲问题。
短句来源
  “动屈曲”译为未确定词的双语例句
     Through the experiments on 81 cylindrical shells with 3 different thicknesses underaxial impact to a rigid target in the range of impact velocity V=39-166m/s,the applicable range of initial imperfection analyses is determined.
     本文通过四种材料(AM、A_3)、三种几何尺寸(R/h=5,6.7,10)的共81个圆柱壳,在39—166m/s速度范围的撞击实验,确定了塑性动屈曲理论中比较流行的初缺陷分析的适用范围;
短句来源
     DYNAMIC PLASTIC BUCKLING OF SIMPLY SUPPORTED CYLINDRICAL SHELLS UNDER UNIFORM RADIAL IMPULSE
     简支圆筒壳在均匀径向冲量下的塑性动屈曲
短句来源
     THEORETICAL ESTIMATION OF THE DYNAMIC BUCKLING DAMAGE OF CYLINDRICAL SHELLS CAUSED BY INTENSE PULSE LASER BEAM
     强脉冲激光束引起圆柱壳动屈曲破坏的理论估算
短句来源
     Dynamic Plastic Buckling of Cylindrical Shells subjected to Ununiform External Impulsive Loads
     非均匀径向冲击下圆柱壳塑性动屈曲
短句来源
     Dynamic Plastic Buckling of Cylindrical ShellsSubjected to Nonuniform External Impulsive Loads
     非均匀径向冲击下圆柱壳塑性动屈曲
短句来源
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  相似匹配句对
     Vibration and Buckling Analysis of Unsymmetric Angle-Ply Rectangular Plates
     反对称角铺层矩形板振屈曲分析
短句来源
     Dynamic Plastic Buckling of Cylindrical ShellsSubjected to Nonuniform External Impulsive Loads
     非均匀径向冲击下圆柱壳塑性屈曲
短句来源
     Analysis on dynamic filtration
     失水分析
短句来源
     A Preliminary Study on Dynamic Metaphor
     试论“喻”
短句来源
     Local Buckling of Ribbed Panels
     加筋板的局部屈曲
短句来源
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  dynamic buckling
Thus, in the region where buckling behavior of pile must be taken into account, the high grade concrete is supposed to be applied, and the dynamic buckling behavior of pile needs to be further studied.
      
According to Boulli-Euler beam equation, the dynamic buckling mode of an elastic bar under the homogeneous boundary conditions can be derived by applying the preferred mode analytical method.
      
As an example, the dynamic buckling mode of an elastic bar clamped at both ends is discussed.
      
A numerical calculation of dynamic buckling of a thin shallow spherical shell under impact
      
Nonlinear dynamic response and dynamic buckling of shallow spherical shells with circular hole
      
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Through the experiments on 81 cylindrical shells with 3 different thicknesses underaxial impact to a rigid target in the range of impact velocity V=39-166m/s,the applicable range of initial imperfection analyses is determined. The concept and criterion-of the second buckling critical velocity Vc2 suggested in Ref. [15] is applied and calculated accrding to strain rate reversal and the calculated Vc2 are in satisfactory agreement with experimental results. It is found that in the experiment under velocity VO...

Through the experiments on 81 cylindrical shells with 3 different thicknesses underaxial impact to a rigid target in the range of impact velocity V=39-166m/s,the applicable range of initial imperfection analyses is determined. The concept and criterion-of the second buckling critical velocity Vc2 suggested in Ref. [15] is applied and calculated accrding to strain rate reversal and the calculated Vc2 are in satisfactory agreement with experimental results. It is found that in the experiment under velocity VO greater than the calculated Vc2, there will be a jump of impact velocity V in the V vs. axial strain u/L curve and the cylindrical shells collapse with a serious buckling deformation. It is also found that the embryonic form of the buckling collapse mode has appeared at the very beginning of buckling. Thus, since the half-wave number of axial buckling mode is very easy to obtain, we may stiffen the shell in a way to prevent the appearance of such a collspse mode in its embryonic form and raise the critical velocity Vc2. This may be useful in structural designs.

本文通过四种材料(AM、A_3)、三种几何尺寸(R/h=5,6.7,10)的共81个圆柱壳,在39—166m/s速度范围的撞击实验,确定了塑性动屈曲理论中比较流行的初缺陷分析的适用范围;同时把作者在[15]中提出的第二失稳临界速度的概念和理论判据,用到圆柱壳撞击刚性靶的问题上,着重研究了大于或等于第二失稳临界速度(Vc_2)时的特征,根据应变率反向的判据,按照ε_2反向计算了V_(c2),其结果与实验值相符。实验中发现当大于上述计算得到的V_(c2)时,撞击速度相对轴向缩短率的曲线会出现跳跃,圆柱壳因局部产生很大的失稳变形而破坏.同时还发现这种破坏形式在撞击初期已形成雏形,这样可以通过计算的半波数而采用某些方法,例如加肋等,防止破坏雏形的形成,从而提高V_(c2),这一点可能给工程设计提供一个可循的依据.

The dynamic plastic buckling of cylindrical shells subjected to ununiform external impulsive loads is analysed with the dynamic buckling criterion proposed by Wang and Ru. The formulas of preferred mode numbers and critical loads of buckling are given and proved by the experimental results given by Lindberg and Florence. We also conclude that the energy criterion proposed by Wang and Ru is a suitable method for dealing with the buckling problems discussed in this paper.

本文采用王仁等提出的塑性动力屈曲的能量准则讨论了圆柱壳在不均匀的外部径向冲击下的塑性动屈曲问题,获得了屈曲的占优波数公式及临界冲击速度公式。经过初步实验,证明本文的结论是合理的,并进一步证实了该能量准则的有效性。

The dynamic plastic buckling of cylindrical shells subjected to nonuniform external irnpulsiveloads is analysed with the dynarnic buckling criterion propcoed by Wang and Ru. The formulae of per-ferred mode numbers and critical loads of buckling are given and proved by the experimental resultsgiven by Lindberg and Florence. We also conclude that the energy criterion proposed by Wang and Ruis a suitable method for dealing with the buckling problems discussed by this paper.

本文采用王仁等提出的塑性动力屈曲的能量准则讨论了圆柱壳在不均匀的外部径向冲击下的塑性动屈曲问题,获得了屈曲的占优波数公式及临界冲击速度公式,初步的实验证明本文的结论是合理的。同时进一步证明该能量准则的有效性。

 
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