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书籍/力学书籍/力学/Flexible Multibody Dynamics (O. A. Bauchau) (Z-Library)/auto/Flexible Multibody Dynamics (O. A. Bauchau) (Z-Library).md

@@ -3328,7 +3328,7 @@ The principle of impulse and momentum involves two sets of new quantities. First
 #### Principle of linear impulse and momentum  
 
 Figure 3.13 shows a particle of mass $m$ in motion with respect to an inertial frame $\mathcal{F}^{I}=[\mathbf{O},\mathcal{T}=(\bar{\iota}_{1},\bar{\iota}_{2},\bar{\iota}_{3})]$ . The inertial velocity vector of the particle is denoted $\underline{v}$ . The linear momentum vector of a particle is defined as the product of its mass by its inertial velocity vector  
-
+图 3.13 示出了质量为 $m$ 的一个粒子相对于惯性系 $\mathcal{F}^{I}=[\mathbf{O},\mathcal{T}=(\bar{\iota}_{1},\bar{\iota}_{2},\bar{\iota}_{3})]$ 的运动。该粒子的惯性速度矢量记作 $\underline{v}$。粒子的线性动量矢量定义为其质量与惯性速度矢量的乘积。
 $$
 \underline{{p}}=m\underline{{v}}.
 $$