点间隙约束下轴向受压弹性梁的过屈曲
Journal of Gansu Sciences（2010）
Abstract
基于轴向可伸缩Euler-Bernoulli梁的过屈曲精确数学模型,采用打靶法研究了点间隙约束下两端夹紧和简支弹性梁在轴向机械载荷作用下的过屈曲.着重讨论了梁的中点挠度达到给定间隙值而受到点约束后的弹性梁的过屈曲变形和内力的变化特征,给出与中点约束力相关的平衡构形和平衡路径.
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Key words
shooting method,elastic beam,point space-constraint,post-buckling
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