铣削振动的计算机仿真

Computer Simulation of Cutting Vibration in Face Milling

介绍采用数字仿真研究平面端铣切削振动的原理和条件。通过比较铣削振动试验和计算机仿真中的铣削强迫振动与自激振动现象 ,验证了数字仿真的可行性和优点。应用 Runge- Kutta和 Simpson公式 -快速卷积 -迭代两种数值方法仿真铣削振动的结果相当接近 ,并与试验结果及他人研究结论相符 ,而后者具有计算简单、收敛速度快和解的稳定性好等优点。

A principle, procedure and conditions to investigate face milling vibration by means of computer simulation are introduced. Comparing the forced and self-excited cutting vibration phenomena in face milling from milling vibration test and digital simulation verifies the feasibility and advantages of digital simulation to investigate cutting vibration. The results of face milling vibration simulated by Runge-Kutta method and Simpson formula fast-convolution-iteration method are very close to each other as well as to those of milling vibration test and from other researchers, which shows that both methods are convergent. It is also demonstrated that the Simpson formula fast-convolution-iteration method has the advantages of simplicity, fast convergence and stability.