Abstract:

In order to simulate the loop construction of warp-knitted structures more truly with computer technology, loop offset theory and calculation formula are derived after observing the loop construction of all kinds of warp-knitted fabrics and analyzing the regulation of loop offset caused by yarn tension. The theory assumes that offset is the accumulated value of each loop offset in the same needle. Applying the theory to the three-dimension model of warp-knitted loop, the coordinates of some control points defining the loop are amended. Finally, computer 3-D simulation of tricot warp-knitted fabrics is successfully realized with the program language Visual C+ +. NET and the tool of OpenGL. Comparing the simulated images with the real fabrics, it is found that there is high similarity on fabric construction between them.