基于改进弹簧-质点模型的纬编织物三维模拟  

3-D simulation of weft knitted fabric based on improved mass-spring model

作　　者：沙莎[1] 蒋高明[1] 马丕波[1] 李欣欣[1] 

机构地区：[1]江南大学教育部针织技术工程研究中心,江苏无锡214122

出　　处：《纺织学报》2015年第2期111-115,共5页Journal of Textile Research

基　　金：国家科技支撑项目(2012BAF13B03);国家自然科学基金项目(11302085);江苏省产学研联合创新项目(BY2013015-38;BY2014023-34)

摘　　要：为解决弹簧-质点模型在模拟组织结构复杂的纬编织物时模拟效果不真实、立体感不足等问题,对传统弹簧-质点模型进行改进,提出了立体化的弹簧-质点模型。改进的弹簧-质点模型能够很好地模拟组织结构较复杂的纬编织物,通过非线性的弹簧力模拟织物动态仿真中出现的超弹性现象。同时,采用Velocity-Verlet数值积分方法对质点的空间位移进行计算,实现了对纬编织物受到三维状态多外力作用时的动态模拟。所提方法计算速度快,实时性好。In order to solve the problem in simulating of the complicated organization of weft knitted fabric and lack sense of reality, mass-spring model was improved and three-dimensional mass-spring model was proposed. The complicated organization of weft-knitted fabric could be well simulated via the improved mass-spring model. The phenomenon of super-elastic in fabric dynamic simulation was also solved by non-linear spring force. The spatial displacement of particles was calculated using Velocity- Verlet numerical integration to realize the 3-D dynamic showed its advantages on computing speed and real-time simulation of weft knitted fabric. The algorithm performance.

关 键 词：纬编织物 弹簧-质点模型 非线性弹簧 Velocity-Verlet 

分 类 号：TS181.8[轻工技术与工程—纺织材料与纺织品设计]