燃气涡轮试验与研究
燃氣渦輪試驗與研究
연기와륜시험여연구
GAS TURBINE EXPERIMENT AND RESEARCH
2013年
2期
18-23
,共6页
气动弹性%重型燃气轮机%压气机%稳定性参数%振荡叶栅%影响系数法
氣動彈性%重型燃氣輪機%壓氣機%穩定性參數%振盪葉柵%影響繫數法
기동탄성%중형연기륜궤%압기궤%은정성삼수%진탕협책%영향계수법
aeroelasticity%heavy duty gas turbine%compressor%stability parameter%oscillating cascade%influence coefficient method
通过求解雷诺平均N-S方程并采用影响系数法,对某重型燃气轮机压气机叶片三个基本正交模态的叶片绕流问题进行了研究;同时结合有限元分析和稳定性参数分析,对压气机叶片气动弹性稳定性进行了初期预判.结果表明:以振型为判断标准的稳定性参数图,可作为压气机设计中气动弹性稳定性的预判工具;本文所述颤振稳定性初期预判方法,可为重型燃气轮机压气机气动弹性稳定性初期设计提供技术支持.
通過求解雷諾平均N-S方程併採用影響繫數法,對某重型燃氣輪機壓氣機葉片三箇基本正交模態的葉片繞流問題進行瞭研究;同時結閤有限元分析和穩定性參數分析,對壓氣機葉片氣動彈性穩定性進行瞭初期預判.結果錶明:以振型為判斷標準的穩定性參數圖,可作為壓氣機設計中氣動彈性穩定性的預判工具;本文所述顫振穩定性初期預判方法,可為重型燃氣輪機壓氣機氣動彈性穩定性初期設計提供技術支持.
통과구해뢰낙평균N-S방정병채용영향계수법,대모중형연기륜궤압기궤협편삼개기본정교모태적협편요류문제진행료연구;동시결합유한원분석화은정성삼수분석,대압기궤협편기동탄성은정성진행료초기예판.결과표명:이진형위판단표준적은정성삼수도,가작위압기궤설계중기동탄성은정성적예판공구;본문소술전진은정성초기예판방법,가위중형연기륜궤압기궤기동탄성은정성초기설계제공기술지지.
Numerical simulation of 3-D unsteady viscous flow around oscillating compressor blades was carried out in the influence coefficient domain by resolving Reynolds average N-S equation. Combined with the FEM analysis and stability parameter analysis (Tie-Dye method), the aeroelastic stability analysis for compressor was done. The main results indicate that the stability parameter estimated on the basis of oscilla?tion mode could be a pre-evaluation tool for aeroelastic stability design of compressor. And the method pro?vides technical support for the preliminary aeroelastic stability design of heavy duty gas turbine compressor.
