Finite-element simulation and analysis of double-cylinder computerized hosiery machine′s knitting element based on SolidWorks modeling technology

According to the imperfect design level of domestic double-cylinder computerized hosiery machine and lack of the theory research for the key mechanisms,it mainly researched the dynamic analysis of the knitting element for double-cylinder computerized hosiery machine.The SolidWorks software has wide functions which are 3-D mechanism structural design,product modeling,and design optimization function.The SolidWorks was applied to set up the 3-D model of knitting element.On this basis,the knitting element′s solid model was guided to ANSYS/LS-DYNA system which realized the computer′s movement simulation of the lead wire,the needle,and the cams.It also studied their displacement,velocity,acceleration,and force conditions when the contact-compact of the knitting elements happened.Then,the needle and the cam were optimized by design.Furthermore,the high-speed shooting and image data processing were applied to the experiment,and the research findings′ accuracy of the ANSYS/LS-DYNA was certified.The research findings show that the acceleration′s maximum value of the needle is 6.7×107 m/s2,and the stability of the needle can be controlled when the double-cylinder computerized hosiery machine is in high-speed motion.