【摘要】 为了解决二面角弯曲约束模型存在的计算复杂和存在局限性问题,提出一种基于位置动力学的弯曲约束模型。所提模型使用角度弯曲约束模型的虚拟三角形构建约束,该约束创建方法受底层网格剖分的影响较小。同时引入全局弯曲参数,该参数与传统的刚度常数相比可以更加精确地控制弯曲变形。实验结果证明:与当前已使用的二面角弯曲约束模型相比,所提模型在虚拟三角形中操作计算,提高了模拟质量和收敛速度。更多还原

【Abstract】 In order to solve the problem of computational complexity and limitation of the dihedral angular bending constraint model,a bending constraint model based on position dynamics is proposed. The proposed model uses the virtual triangle of the angular bending constraint model to construct constraints,this constraint construction method are less affected by the bottom mesh generation. At the same time,the global bending parameters are introduced,which can control the bending deformation more accurately than the traditional stiffness constants. Experimental result shows that the proposed model can improve the simulation quality and convergence speed by operating calculation in virtual triangle compared with the existing dihedral angular bending constraint model.更多还原