基于改进弹簧质点模型的织物模拟算法

Cloth Simulation Algorithm Based on Improved Spring-mass Model

提出了一种基于改进弹簧质点模型的织物模拟算法。该算法首先引进刚性杆代替结构弹簧,对弹簧质点模型进行了改进。其次基于改进的弹簧质点模型,实现织物模型的建立。将织物看成是由分布均匀的质点组成,通过对模型中的质点进行受力分析,建立织物的力学方程。最后运用显式欧拉方程法对模型质点的空间位移进行数值求解,并在求解过程中运用动态约束算法改善超弹性问题。实验结果表明,提出的方法在确保织物模拟稳定和效率高的基础上,实现了对织物的高效模拟。

This paper puts forward a cloth simulation algorithm based on the improved spring-mass model.Firstly,the rigid rod is introduced to replace the structure spring,which is to improve the spring-mass model.Secondly,based on the improved spring-mass model,the cloth model is established.The cloth is composed of uniform distributed masses.The dynamic equations are formulated based on the force analysis of particles in the model.Finally,the explicit Euler equation method is used to solve the dynamic equations and the numerical values of mass＇s displacements are obtained.Meanwhile,the su- per-elasticity problem is improved by means of dynamic constraint algorithm.