【摘要】 叙述了锤击法的原理及数据处理方法 ,用锤击法对 30 0MW汽轮发电机定子进行了模态试验研究 ,取得了 30 0MW汽轮发电机定子在几个工序下 ,定子固有频率的变化规律 ,30 0MW发电机定子椭圆固有频率 12 3Hz ,结构设计合理 ,可保证机组不发生较大振动。对 30 0MW汽轮发电机定子的优化设计和其它汽轮发电机定子的设计有一定的参考价值更多还原

【Abstract】 Presents the simulation test of 300 MW turbine generator stator using the impulse technique, the theory behind the impulse technique, and the associated data processing, and the laws established for the variation of stator natural frequency, which makes it possible to optimise the design of stators for 300 MW and other turbine generators to reduce their effect on the power generating sets.更多还原