摘要
研究了叶轮偏心引起的气流激振的机理和Alford力的计算方法 ,利用B .Lakshminarayana公式推导了一个包括叶栅参数和流动参数的效率系数ε的新计算公式 ,解决了Alford公式中需人为选取效率系数的困难 。
The mechanism of gas exciting for wheel eccentricity and calculation of Alford′s force were studied. The physical meaning and range of numerical value about efficiency factor were discussed. A new formulation was derived considering the parameter of blade and flowing. It got rid of the difficulty in selecting efficiency factor in Alford′s formulation and laid a theoretical foundation for increasing the stability of turbine rotor.
出处
《华中科技大学学报(自然科学版)》
EI
CAS
CSCD
北大核心
2003年第4期66-68,共3页
Journal of Huazhong University of Science and Technology(Natural Science Edition)
基金
湖北省自然科学基金资助项目 (2 0 0 2AB0 0 3)
华中科技大学科学研究基金资助项目