摘要 |
<p>A method for measuring a shafting mechanical fatigue of a turbine generator set, which involves determining a lumped mass model of a turbine generator set and its parameters; calculating a model frequency and a mode shape of the turbine generator set; acquiring an angular velocity change at a machine end; calculating a torque at a calculating section of shafting based on the model frequency, a mode shape curve and an equivalent rigidity of the lumped mass model, so as to obtain a torque-time history curve at the calculating section of the shafting; calculating a fatigue damage accumulative value for a dangerous section of a set shafting under a certain malfunction or disturbance, that is, the shafting mechanical fatigue of the turbine generator set.</p> |
申请人 |
SIFANG ELECTRIC (GROUP) CO., LTD.;BEIJING SIFANGBONENG AUTOMATION SYSTEM CO., LTD.;LIANG, XINYAN;JIAO, SHAOHUA;LI, YUANSHENG;ZHANG, TAO;LIU, QUAN |
发明人 |
LIANG, XINYAN;JIAO, SHAOHUA;LI, YUANSHENG;ZHANG, TAO;LIU, QUAN |