基于动力学的树在风中摇曳的方法的研究

为了模拟树在风中的摇曳变形,本文基于力学分析,从多个角度考虑树的受力,先计算出风力作用下每个单元段的受力情况,再由末梢枝条向根部进行力的传递,然后在从根部到末梢进行计算以获得整棵树的变形,并在些基础上考虑了风与树间的流固耦合效应,分析了平均效应和脉动效应,给出了相应数学公式,通过以上方法能较为逼真的模拟出树在风中的变形。

Research on Physically-based Animation 0f Trees Swaying with wind

To nicety simulate the trees swaying in wind,many forces of tree were taken into account based on force analysis.The deformation of every cell-branch in wind force was computed firstly,and then the face propagated from twig to root,last the diformation of the whole tree was got due to computing the compound face from the root to twig.The formulas were presented in this paper to reflect the fluid-structure interaction between wind and tree by studying the average effect and the pulsaion effect.Based on above...