| 大范围运动柔性梁动力学分析 |
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| 引用本文： | 张书俊,任钧国,吴志桥. 大范围运动柔性梁动力学分析[J]. 振动与冲击, 2007, 26(3): 90-95 |
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| 作者姓名： | 张书俊 任钧国 吴志桥 |
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| 作者单位： | 国防科技大学航天与材料工程学院,长沙,410073 |
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| 摘 要： | 针对有偏心、考虑剪切的变截面大范围运动柔性梁，使用有限元方法离散柔性梁，结合非线性变形场得到耦合形函数；在此基础上得到动力学方程，仿真算例验证了有限元离散的有效性和耦合形函数的正确性。
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| 关 键 词： | 有限元法 耦合形函数 柔性梁 偏心距 |
| 修稿时间： | 2006-03-07 |
DYNAMIC ANALYSIS FOR A FLEXIBLE BEAM WITH GENERAL SPATIAL MOTION |
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| Zhang Shu-jun,Ren Jun-guo,Wu Zhi-qiao. DYNAMIC ANALYSIS FOR A FLEXIBLE BEAM WITH GENERAL SPATIAL MOTION[J]. Journal of Vibration and Shock, 2007, 26(3): 90-95 |
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| Authors: | Zhang Shu-jun Ren Jun-guo Wu Zhi-qiao |
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| Abstract: | The dynamic behavior of a cantilever beam built into a rigid body that performing a specified motion of rotation and translation is studied. The effects of torsion, transverse shear deformation, rotatory inertia, and an offset between its cross sectional centroid and its shear center (eccentricity) are included. Its FEM discrete model is derived with the coupled shape functions obtained from its nonlinear displacement field. The accuracy of the method proposed is illustrated by comparing the solutions of two problems to those obtained by the other method. |
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| Keywords: | finite element method(FEM) coupled shape function flexible beam eccentricity |
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