基于规则网格的层次化布料动态模拟方法

In the process of cloth dynamic simulation, convergence and efficiency are two core indicators, which can well reflect the performance of simulation. To approve the convergence and quality in cloth dynamic simulation, this paper proposed an approach which based on grid-hierarchical simulation. In this method, this paper constructed a hierarchical constrained grid on the basis of the original grid using the hierarchical idea, in this process, various decision functions could be used to streamline the grid to adapt different target requirements. After the construction was completed, it used the proposed weighted association model to rectify each level. In the process of simulation, the proposed approach used hierarchical constraint grid to constrain the original grid from the coarse layer to the finest layer to improve the convergence speed, which effectively avoided the problem of increasing the number of iterations in the traditional way. To show the simulation performance, it simulates dynamic cloth under the cycle pendulum wind field. The results shows that under the simulation of grid-hierarchical method, it can well solve the constraint oscillation problem of the traditional simulation, and the proposed method is more efficiency and stable.