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.
You simply want to describe things the way they are and then dynamics tells you how they changed and why they changed.
你只是单纯描述物体的实际状态,而动力学则是解释它们运动的方式和原因的
And so, you know from your Newtonian mechanics, as you were learning in 8.01, the dynamic force here mv^2/r is mv squared over r.
在8。01节对牛顿动力学系统的学习中,我们可以知道这里的运动受力,就是。
Dynamics then tells you why the object goes up, why the object goes down and why is it pulled down and so on.
而动力学则会告诉你为什么物体向上运动,为什么向下运动,为什么停下来,等等
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