迷宫汽封振动频率对转子动特性系数的影响

Affect of the Vibration Frequency of Labyrinth Seal on the Dynamic Coefficient of Rotor

对迷宫汽封转子振动频率对转子动特性系数的影响进行了分析。通过对定常流场和非定常流场的求解,最终可以得到各动特性系数。分析结果表明:振动频率对转子动力特性系数的影响是显著的,并且随着振动频率的增大,转子的稳定性先提高后降低。

For labyrinth seals, the effect of the vibration frequency of rotor on the rotor dynamic coefficients is analysed in this paper. By computing steady fluid field and unsteady fluid field, the rotordynamic coefficients are solved. It is found that the influence of vibration frequency is remarkable. With increasing of frequency, stability of rotor increases firstly and then reduces. 