摘要
介绍了叶轮偏心引起的气流激振的机理和国内外开展研究工作情况 ,重点探讨了 Alford力中效率系数β的影响因素和应用条件 ,分析了各种研究方法的优缺点 。
We first introduced the mechanism of gas exciting vibration caused by tip clearance and its research state home and abroad. Influencing factors and applying condition of coefficient factor β in Alford's force was discussed. The merit and defect of various research methods was analysed. Finally, we pointed out that enhanced study of the flow in the cascade and changes of stage coefficient caused by tip clearance is neccessary.
出处
《机械科学与技术》
CSCD
北大核心
2003年第S1期1-5,共5页
Mechanical Science and Technology for Aerospace Engineering
基金
湖北省自然科学基金 ( 2 0 0 2 AB0 0 3 )
华中科技大学科学研究基金资助
关键词
气流激振
透平机械
振动
Gas exciting vibration force
Turbomachinery
Vibration
Tip clearance
