Dynamic analysis of shogging motion mechanism of guide bar on warp knitting machine

In order to research the inherent nature and mechanical property of the guide bar and improve its stability and dynamic response during shogging motion,this study makes a simplified analysis of the shogging mechanism and establishes a dynamic model.The dynamic differential equation is given according to the theory of Newton′s laws of motion and finds the solution by Laplace transform equation.A corresponding simulation model is developed based on MatLab/Simulink analysis module.Point-by-point measurement of the guide bar is conducted with a vibration test system which consists of a analytical system of acoustics and vibration(model 3560C),an acceleration transducer(model 4507B) and a computer.Simulation was executed using the measured external incentives data of the guide bar as the input signal,and the simulated vibration acceleration response curve is identified with the test result,which verifies the correctness of the model.