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砰击载荷作用
相关语句
  slamming impact
     Dynamic plastic buckling of rectangular plates under axial slamming impact is analyzed with the rigidity-plasticity theory.
     基于刚塑性理论分析了轴向砰击载荷作用下矩形薄板的塑性动力屈曲问题.
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  “砰击载荷作用”译为未确定词的双语例句
     Transient response analysis and structural optimization of a high-speed ship bottom structure under slamming load
     砰击载荷作用下高速船船底结构瞬态动力响应分析及其结构形式优化
     Parametric Analysis of Dynamic Response of Plating Subjected to Slamming Loads
     砰击载荷作用下板结构动力响应的参数分析
短句来源
  相似匹配句对
     SHIP LOADS DUE TO BOW FLARE SLAMMING
     外张砰击载荷
短句来源
     Parametric Analysis of Dynamic Response of Plating Subjected to Slamming Loads
     砰击载荷作用下板结构动力响应的参数分析
短句来源
     Calculation of Shear Forces under Eccentric Loads
     承受偏心载荷作用的剪切计算
短句来源
     STRESSES IN RIGID FRAMES DUE TO DYNAMIC LOAD
     在动载荷作用下的刚架计算
短句来源
     The analysis parameters are: magnitude of peak pressure, added mass, plate rigidity, impact duration and number of impact.
     分析的参数有 :压力峰值、附加质量、结构刚度、载荷作用时间和连续砰击次数 .
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  slamming impact
Most pertaining analytical studies treat a wave slamming impact as a two-dimensional wedge falling on to calm water.
      
The maximum hogging bending moment is only 445 MNm because there is no simultaneous slamming impact.
      
The impact at the knuckle point is similar to the slamming impact on a wedge.
      


The dynamic response and buckling of columns under axial slamming loads are investigated. The governing equation of. axiallyslammed columns is solved by singular perturbation technique. The lateral flexural motion and the dynamic buckling phenomenon of axially-slammed columns are analysed and a criterion for estimating critical buckling condition is proposed. The calculation shows to be in good agreement with the experimental results.

本文对轴向砰击载荷作用下杆的动力响应与屈曲问题进行了探讨。通过采用一种奇异摄动方法,求解了轴向砰击杆的动力响应与屈曲控制方程,在此基础上,分析其横向弯曲运动规律和动力屈曲现象,同时讨论了轴向砰击杆的动力失稳判据。最后,采用本文发展的理论计算了一个实例,计算结果与已有的试验结果之间有着较好的一致性。

Dynamic plastic buckling of rectangular plates under axial slamming impact is analyzed with the rigidity-plasticity theory. The Mises yield condition and the related flow rule are adopted and a rigid-linear hardening material is assumed. The governing equation is derived and solved. The necessary condition for dynamic plastic buckling of rectangular plates is given and the critical half-wave lengths as well as the critical impact values of the plate are determined.

基于刚塑性理论分析了轴向砰击载荷作用下矩形薄板的塑性动力屈曲问题.在理论分析中,采用米塞斯屈服条件及其相关的流动准则,并且假定材料服从刚性一线性强化规律,推导了问题的控制方程,然后,对控制方程进行了求解.在此基础上,给出了矩形薄板发生塑性动力屈曲的必要条件,确定了矩形薄板塑性动力屈曲的临界半波长和临界冲击值.

The pseudo shakedown phenomenon in the structural mechanics of ships is investigated both theoretically and experimentally. An energy criterion, which can be used to judge the pseudo shakedown state of structure is postulated. The energy criterion is applied to the analysis of pseudo shakedown of ship plates under either repeated wave slamming or repeated mass impacts. An illustrative example and some experimental results are given. According to the analysis, it is found that, for the axially restrained ship...

The pseudo shakedown phenomenon in the structural mechanics of ships is investigated both theoretically and experimentally. An energy criterion, which can be used to judge the pseudo shakedown state of structure is postulated. The energy criterion is applied to the analysis of pseudo shakedown of ship plates under either repeated wave slamming or repeated mass impacts. An illustrative example and some experimental results are given. According to the analysis, it is found that, for the axially restrained ship plate with repeated dynamic loads, the elastic strain energy absorbed in the structure increases with that of the plastic deformation of the structure, the structure will be in a pseudo shakedown state when the maximal elastic strain energy to be absorbed in the deformed structure equals to the external work of the dynamic load in magnitude. The postulation is confirmed by the results of repeated mass impact on a fully clamped circular plate.

从理论和试验研究两个方面论述了船舶结构力学中的“伪安定”问题.提出了一个判别结构是否发生伪安定状态的能量准则,并将这个准则具体应用于反复波浪砰击载荷作用下以及反复质量撞击作用下船舶板的伪安定分析.给出了分析实例及试验结果.分析表明:对于承受反复动载作用、边界受到约束的船舶板,当外载荷所作的总功小于板构件所能贮存的最大弹性变形能时,该结构将是伪安定的.集中质量反复撞击固支铝合金圆板的试验结果证实了理论的预报.

 
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