| 无约束物体动力学普适方程的变化导出 |
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| 引用本文： | 吴斌.无约束物体动力学普适方程的变化导出[J].北京工业大学学报,1998(2). |
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| 作者姓名： | 吴斌 |
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| 作者单位： | 北京工业大学基础科学部 |
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| 摘 要： | 用张量形式通过变分原理导出了无约束物体的动力学普适方程。该方程简化后可得到刚体动力学方程和弹性变形体动力学方程。普适方程用于分析运动物体考虑其变形或由刚体和变形体组成的混合系统的动力学问题是方便的。
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| 关 键 词： | 张量，变分原理，无约束物体，动力学问题 |
An Universal Dynamic Equation for UnrestrainedBody Derived by Using Variation Method |
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| Wu Bin.An Universal Dynamic Equation for UnrestrainedBody Derived by Using Variation Method[J].Journal of Beijing Polytechnic University,1998(2). |
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| Authors: | Wu Bin |
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| Abstract: | An universal dynamic equation for unrestrained body has been derived in the form of tensor by using variation method.As a particular example, dynamic equation both for rigid body and for elastic deformation body can be obtained directly from the universal dynamic equation.Also, the analysis of the movement of deformation body and the dynamic problem of the mixed system, which composed by rigid body and elastic body,are to be resolved by using this universal equation. |
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| Keywords: | tensor variational method unrestrained body dynamic problem |
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