高速机车运动流场仿真分析及噪声研究

通过对高速机车车头运动过程进行流程分析,研究分析了高速机车车头压力随速度的变化情况,通过仿真得出高速机车车尾流线和湍流变化。由进一步仿真分析得出机车在高速运动中产生的噪声,以及在不同位置机车噪声的变化及噪声随机车速度的变化情况。此研究可对机车的设计及减小噪声等方面给予一定的指导。

The simulation analysis and noise research on the flow fields of high-speed locomotive

The problem that campaign process of front part for locomotive on high-speed is analyzed. Through the researchers for dividing the pressure of high-speed locomotive front with speed changes, the high-speed motorcycle rear streamline and turbulent change are obtained. By further simulation analysis of the noise generated by the locomotive in the high-speed mo- tion, the changes of the locomotive noise and random noise by vehicle speed changes are obtained in different locations. The results can provide certain theoretical significance for improving the design and further reducing the noise of the front part for locomotive .