汽轮机叶片激振因子和阻尼分析

Steam Turbine Blade Excitation Factor and Damping Analysis

激振力和叶片阻尼是影响汽轮机叶片安全的重要因素，本文在综述有关激振力和叶片阻尼方面的研究文献的基础上，给出了估算激振力因子的公式和叶片阻尼的方法，可用于叶片动力响应分析和动应力分析。

Abstract Excitation forces and blade damping are vital factors influencing turbineblade blade s afety.Based on a review of relevant literature concerning excitationforces and blade damping,the paper presents a formula and method for estimatingthe excitation factor and blade damping applicable for nalyzing the dynamicresponse and dynamic stress of blades.