| 非线性地基上弹性梁屈曲传播抑制的动力有限元分析 |
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| 引用本文： | 黄玉盈 邹时智. 非线性地基上弹性梁屈曲传播抑制的动力有限元分析[J]. 固体力学学报, 1997, 18(2): 117-123 |
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| 作者姓名： | 黄玉盈 邹时智 |
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| 作者单位： | [1]华中理工大学力学系 [2]沙市大学 |
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| 摘 要： | 基于非线性地基弹性梁屈曲传播的动态控制方程，考虑梁质量惯性的影响，用有限元和时间积分相结合的方法，计算了分析了止屈器对梁屈曲传播抑制的作用，止屈器是通过局部加大地基刚度加以模拟。研究表明：考虑动态得到的止屈效果和前人以准静态为前提的结果相比有明显不同。
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| 关 键 词： | 屈曲传播 非线性 地基 弹性梁 有限元 |
DYNAMIC ANALYSIS OF ARREST OF BUCKLE PROPAGATION ON A BEAM ON A NONLINEAR ELASTIC FOUNDATION BY FEM |
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| Huang Yuying. DYNAMIC ANALYSIS OF ARREST OF BUCKLE PROPAGATION ON A BEAM ON A NONLINEAR ELASTIC FOUNDATION BY FEM[J]. Acta Mechnica Solida Sinica, 1997, 18(2): 117-123 |
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| Authors: | Huang Yuying |
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| Abstract: | Based on the dynamic governing equation of propagating buckle on a beam on anonlinear elastic foundation, this paper deals with an important problem of buckle arrest by combin-ing the FEM with a time integration technique. A new conclusion completely different from thequasi-static analysis about the buckle arrestor design is drawn out. It shows that the inertia of thebeam cannot be ignored in the analysis under consideration, especially when the buckle propagationiS stopped suddenly by the arrestors. |
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| Keywords: | buckle propagation nonlinear foundation elastic beam arrest of buckle finiteelement method |
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