摘要
利用有限元模型对叶轮模态进行了计算 ,判断分析了各阶模态振型对气动噪声的影响程度 ,求解中利用了ANSYS的模态循环对称功能 ,同时分析了旋转软化。
Calculation is carried out on impeller modal using the finite element model. ANSYS software is used in derivation, the effect of modal vibration in various stage on aerodynamic noise is judged and analyzed, the effect of rotating softness and stress intensification on the modal frequency under the impeller in real operation condition is also analyzed at the same time.
出处
《风机技术》
北大核心
2004年第5期40-43,共4页
Chinese Journal of Turbomachinery
