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本文采用刚塑性假设,对环形悬臂梁在自由端受一刚性质量径向冲击时的塑性动力响应问题进行了分析与研究.给出了质点响应速度与移动塑性铰位置间的精确表达式,并由此发现了环形梁塑性动力响应的一些特殊性质.  相似文献   
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In this paper by using the concept of mixed boundary functions,an analytical method is proposed for a mixed boundary value problem of circular plates.The trial functions are constructed by using the series of particular solutions of the biharmonic equations in the polar coordinate system.Three examples are presented to show the stability and high convergence rate of the method.  相似文献   
3.
Based on the theory of Euler-Bernoulli beam and Winkler assumption for elasticfoundation,a mathematical model is presented.By using Fourier transformation for spacevariable,Laplace transformation for time variable and convolution theorem for theirinverse transformations,a general solution for dynamical problem of infinite beam on anelastic foundation is obtained.Finally,the cases of free vibration,impulsive response andmoving load are also discussed.  相似文献   
4.
通过引入边界混合函数的概念,选用极坐标下双调和方程的特解序列为试函数,本文提出了一种求解圆板混合边值问题的解析方法.最后通过三个实例计算说明了该方法具有较好的收敛性和稳定性.  相似文献   
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In this paper the problem of a circular beam subjected to radial impact by a rigid massat its tip in its own plane is investigated on the basis of rigid-perfectly plastic assumption.The analytical solution of the particle velocities is obtained as the function of travellingplastic hinge location.By analysing the solution,some,some special properties of circular beamproblem are found.  相似文献   
6.
討論西奇可克問題的一種特殊情况:諸運費單價C_(ij)的調整量Q_(fgij)=C_(fg)+C_(ij)-C(fj)-C_(ig),當f相似文献   
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NONLINEARTHREE-DIMENSIONALANALYSISOFCOMPOSITELAMINATEDPLATES¥(江晓禹,张相周,陈百屏)JiangXiaoyu;(SouthwesternJiaotongUniversity,Chengdu6...  相似文献   
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