摘要
研究了汽轮机干摩擦阻尼器叶片在多谐波(第一、二阶低频和第一阶高频)激励作用下的振动。用平均法求出系统低阶谐波共振的稳态响应方程;分析了阻尼器参数与响应之间的关系,特别是初压力对抑制叶片共振振动的效果。所得结论对工程应用有一定指导意义。
Resonances of dry friction damped turbine blades under multi-frequencies excitation, including the components of the first and second orders of low resonance frequencies as well as the first order of high resonance frequency, are studied. The steady-state resonance equations of the low-frequency cases are solved using the average method. The influences of the system parameters, especially the initial pressure, on the resonant response are discussed.
出处
《振动与冲击》
EI
CSCD
北大核心
2005年第4期103-105,共3页
Journal of Vibration and Shock
基金
国家自然科学基金资助项目(编号:10272078)
关键词
干摩擦
叶片
共振
Frequencies
Friction
Steam turbines
Turbomachine blades
