【摘要】 本文建立了轴系扭振特征值对系统参数敏感度的概念及分析方法,同时给出无阻尼情况下扭振固有频率敏感度的计算方法。以元宝山300MW 机组和国产200MW 机组为例进行了具体计算分析,对两种机组不合格的扭振固有频率提出改善途径。更多还原

【Abstract】 The paper puts forward a concept of the eigenvalue sensitivity on the torsional vibration of tur- bine-generator shaft,as well as a method for calculating the inherent frequence sensitivity under the conditions without damping.Two kinds of generating units:300MW units in YuanbaoShan Plant and a nation-made 200MW units are taken as examples for calculation and analysis.And the ways for im- proving the unsatisfactory inherent frequency of torsional vibration are also deduced.更多还原