某核电汽轮机低压末级长叶片颤振风险分析  

Risk Analysis of Long Blade Flutter in Low Pressure Final Stage of a Nuclear Turbine

作　　者：马义良[1] 赫广迅[1] 关淳 李宇峰[1] 郭魁俊 刘跃东 MA Yi-liang;HE Guang-xun;GUAN Chun;LI Yu-feng;GUO Kui-jun;LIU Yue-dong(Harbin Turbine Company Limited,Harbin 150046,China;CHN Energy Taizhou Power Generation Corporation Ltd.,Taizhou 225321,China)

机构地区：[1]哈尔滨汽轮机厂有限责任公司,哈尔滨150046 [2]国家能源集团泰州发电有限公司,泰州225321

出　　处：《汽轮机技术》2023年第5期335-338,共4页Turbine Technology

摘　　要：从气动弹性稳定性问题角度出发,基于能量法判据,对核电汽轮机末级长叶片进行气动瞬态分析,主要考虑叶片在一个振动周期内气流对叶片所做的气动功与机械阻尼之间的平衡状态,利用总阻尼系数判断叶片的颤振风险,为研制更加安全、高效的末级叶片提供了重要理论依据。In this paper,from the perspective of aeroelastic stability problem,based on the criterion of energy method,the aerodynamic transient analysis of the last stage of a nuclear turbine blade is carried out.The balance state between aerodynamic work and mechanical damping of the blade is mainly considered in a vibration cycle of the blade,and the flutter risk of the blade is determined by the total damping coefficient.It provides an important theoretical basis for developing more safe and efficient final blade.

关 键 词：核电汽轮机 末级长叶片 颤振风险 

分 类 号：TK263.3[动力工程及工程热物理—动力机械及工程]