不断旋转的球在看似不可能的舞蹈及其动力学运动是纯粹的娱乐。
The ball constantly rotates in a seemingly impossible dance and its kinetic motion is pure entertainment.
基于一阶剪切变形理论和哈密顿原理，建立了旋转层合圆板动力学运动方程和相应的边界条件。
Based on the first order shear deformation theory and Hamiltonian principle, the governing equations and boundary conditions of rotating multi-layer annular plate were derived.
在此基础上，分别推导了带有粘弹性材料的筏架结构和艇体与声学介质耦合的动力学运动方程序。
From this, the motion equations of the raft with viscoelastic materials and the motion equations of the cylinder submerged in infinite nuid are obtained respectively.
在此基础上，分别推导了带有粘弹性材料的筏架结构和艇体与声学介质耦合的动力学运动方程序。
From this, the motion equations of the raft with viscoelastic materials and the motion equations of the cylinder submerged in an infinite fluid are obtained respectively.
分析了高速滚子轴承中保持架的复杂受力，建立了保持架的碰撞动力学模型和保持架的动力学运动方程。
The complex forces on cage of the high - speed cylindrical roller bearing has been analyzed, and the collision dynamics model and dynamics motion equation of the cage have been set up.
力学运动：轨迹、速度、加速度、运动、刚体动力学变化的参考帧。
Mechanics Kinematics: trajectories, velocity, acceleration, motion of rigid bodies, change of reference frame.
力学运动：轨迹、速度、加速度、运动、刚体动力学变化的参考帧。
Mechanics Kinematics: trajectories, velocity, acceleration, motion of rigid bodies, change of reference frame.
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