| 完全笛卡尔坐标描述的多体系统动力学 |
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| 引用本文： | 刘延柱. 完全笛卡尔坐标描述的多体系统动力学[J]. 力学学报, 1997, 29(1): 84-94. DOI: 10.6052/0459-1879-1997-1-1995-199 |
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| 作者姓名： | 刘延柱 |
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| 作者单位： | 上海交通大学工程力学系，200030 |
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| 基金项目： | 国家自然科学基金,博士点专项科研基金 |
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| 摘 要： | 用完全笛卡尔坐标描述多体系统的运动学和动力学在提高计算效率方面有突出优点．导出用完全笛卡尔坐标表示的刚体及多体系统的动量和动量矩的解析式，给出与之对应的广义惯量矩阵概念，建立无力矩状态下用完全笛卡尔坐标描述的多体系统动力学的一阶微分方程组，用于多体航天器的姿态运动分析
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| 关 键 词： | 刚体动力学 多体动力学 航天器 姿态动力学 |
ON DYNAMICS OF MULTIBODY SYSTEM DESCRIBED BY FULLY CARTESIAN COORDINATES |
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| Liu Yanzhu. ON DYNAMICS OF MULTIBODY SYSTEM DESCRIBED BY FULLY CARTESIAN COORDINATES[J]. chinese journal of theoretical and applied mechanics, 1997, 29(1): 84-94. DOI: 10.6052/0459-1879-1997-1-1995-199 |
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| Authors: | Liu Yanzhu |
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| Abstract: | The formulation of kinematics and dynamics of multibody system basedon the fully Cartesian coordinates has an important advantage incomputational efficiency. In present paper the analytical expression oflinear and angular momentums of rigid body and multibody system in fullyCartesian coordinates and the coresponding generalized inertia matrix are given. The dynamics of a torque-free multibody system described by the fully Cartesian coordinates in the form of differential equations of first order is formulated and can be used for the analysis of attitude motion of spacecraft. |
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| Keywords: | dynamics of rigid body multibody dynamics attitude dynamics ofspacecraft |
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