Abstract: This paper will carry on a dynamic simulation about the needle bar mechanism by creating the parameterized model based on ADAMS. Through function of design study, two variables can be acquired in the process of computing each variable’s sensitive for slide’s translational kinetic energy . Using optimization of ADAMS and taking the magnitude of kinetic energy as objective function, optimization values of the two selected variables are calculated which minimize the value of objective function. Then these two optimized variables will be used as design dimension and finally optimize the needle bar mechanism.

Key words: Computer embroidery, The needle bar mechanism, ADAMS, Optimized design