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中文核心期刊

完全笛卡尔坐标描述的多体系统动力学

ON DYNAMICS OF MULTIBODY SYSTEM DESCRIBED BY FULLY CARTESIAN COORDINATES

  • 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

     

    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 formulat...

     

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