间断高速铣削, 稳定性叶瓣图, 分岔, 动力学行为

A two-dimensional stability analysis model based on the intermittent cutting dynamics was proposed to analyze the bifurcation occurred at a fixed point after losing the stability. The system’s dynamics behavior around the Second Hopf and flip bifurcations was described by the iterative solutions and phase diagrams. Before and after the

Second Hopf bifurcation occurs, the system solution is gone through symptotically

stable to unstable after the bifurcation, the more close to the bifurcation value, the iterative solutions of the system more slowly progressive convergence or divergence.Before and after the flip bifurcation occurs, the system solution is a “jump” stability through bifurcation after “jumping” divergence instability, the more close to the bifurcation value, the iterative solutions of the system more slowly “jump” convergence or divergence;Simulation comparion of one and two dimensional stability analysis models was shown and the experimental verification for the two dimensional model proves the model reliability.

 

intermittent high-speed milling, stability lobe, bifurcation, dynamics behavior