Nonlinear analysis of axial vibration of five-axis machine tool worktable with double turntable

Studies show that the applied torque and load on worktable of a dual-turntable five-axis machine tool continuously change during machining process. These variations generate vibration in along axial direction, thereby reducing accuracy. In order to improve accuracy dynamic characteristics worktable, this paper first established nonlinear equation table when is subjected torque, swing moment, according elasticity plate shell, then Galerkin, truncation method solves displacement direction as well bifurcation diagram, waveform phase plane trajectory, Poincarn solvon diagram processing system. Finally, influence different parameters, including was analyzed operation. The obtained results reveal external changes, corresponding mainly state large periodic motion, where maximum amplitude reaches 0.09 mm, has greatest worktable. Moreover, affected by moment. More specifically, chaotic small period area, 0.03 moment negligible effect studied through experiments. demonstrate analysis with dual turntables an effective way control stability workpiece.