motion of center of mass 中文意思是什麼
motion of center of mass
解釋
質心運動-
A spiral motion of fluid within a limited area, especially a whirling mass of water or air that sucks everything near it toward its center
漩渦在一定地域內液體的螺旋狀運動，尤指把附近各種東西吸向其中心的螺旋水流或空氣 -
Now the svrt model is applied to study the reaction of h + cd4 hd + cd3 in four mathematical dimensions. in the svrt model, the target molecule is treated as a simirigid rotor composed of two rigid parts. the two rigid parts can exercise only one dimensional relative motion along the coordinate connecting the center - of - mass of the two parts
半剛性振轉靶（ svrt ）模型把參加反應的多原子分子處理為兩個基本的剛體，這兩個剛性部分能沿通過它們質心的直線做一維振動，另外它還象一個剛性轉子一樣在3維空間中運動。 -
It is constructed that radial impact and rubbing dynamics differential equations of the rotor system having the nonlinear rigidity on the unsteady and non - linear oil film. the bifurcation and chaos behavior of impact and rubbing fault rotor system caused by the parameters of nonlinear rigidity, rotor rotating speed, eccentric mass is analyzed, in the numerical value analysis method. the bifurcation diagrams, maximum lyapunov exponent diagrams, poincar maps, phase plane portraits, trajectories of journal center, time - history curve, amplitude spectra diagrams of the rotor motion are used
（ 2 ）建立了具有非線性剛度的轉子系統在非穩態非線性油膜力作用下的徑向碰摩動力學微分方程，並應用含高階余項的非線性動力方程的線性化數值法研究了此類系統響應的復雜動力學行為，利用轉子響應的分岔圖、最大lyapunov指數曲線、 poincar截面映射、時域波形、相軌線、軸心軌跡、幅值譜等圖形分析了系統響應的周期運動、擬周期運動、倍周期分岔、混沌等運動形式的轉化與演變過程，重點研究了非線性剛度、轉子轉速、偏心質量等系統參數對碰摩故障轉子系統的分岔和混沌行為的影響。
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