Abstract:

Deformation, caused by various jacquard meshes, is the key core of simulation for multi-bar jacquard fabrics. To perfect its deformation simulation, a tailored mass-spring model is built agreeing with structure features and jacquard theory. With this model, ground pillars are referred to as particles, while underlap between two courses is referred to as a longitudinal structural spring. Similarly, spandex inlay is referred to as coil spring, jacquard inlay as transverse structural spring and pattern lapping as restriction spring. Resultant force on particles by these four springs is calculated to analyze motion state and simulate deformation with explicit Euler method. Finally, simulated deformation based on the mass-spring model is proved accurate when compared with real samples

Key words: warp knitting, multi-bar, jacquard, mass-spring, deformation, simulation