摘要
汽轮机广泛应用于电力、石油、石化和航空等行业。转子系统是汽轮机组的关键部件,由于汽轮机转子结构比较复杂,同时转子系统具有工作转速高、温度环境复杂等特点,易引发振动偏大、碰摩等故障,甚至会发生机组损毁等严重事故,造成人身和经济财产损失。建立汽轮机转子‐轴承系统的弯矩激励稳态振动响应的动力学有限元模型,计算了汽轮机转子弯矩激励稳态振动的位移和应力响应曲线,分析了弯矩矢量的大小和位置对汽轮机转子稳态振动响应的影响,为汽轮机转子系统的动力学设计提供了理论基础。
Steam turbines are widely used in electric power,petroleum,petrochemical and aviation industries.The rotor system is a key component of the steam turbine.Because the turbine rotor structure is more complex,high working speed and complex temperature environment of the rotor system easily lead to excessive vibration,rubbing,crack,fracture,other serious accidents and even units damage,resulting in loss of personal and economic property.Through the establishment of a dynamic finite element model for the steady‐state vibration response of the bending moment excitation of the turbine rotor‐bearing system,calculation of steam turbine rotor bending moment for steady‐state vibration displacement and stress response curve,analyses the size and location of bending moment on the influence of steam turbine rotor steady‐state vibration response,providing theoretical basis for design of steam turbine rotor system dynamics.
作者
赵金玉
苏海
富露霞
樊彪
刘丽
朱向哲
Zhao Jinyu;Su Hai;Fu Luxia;Fan Biao;Liu Li;Zhu Xiangzhe(School of Mechanical Engineering,Liaoning Shihua University,Fushun Liaoning 113001,China;Jinzhou Meet Auto Parts Co.,Ltd.,Jinzhou Liaoning 121013,China;China National Petroleum Co.,Fushun Petrochemical Company,Fushun Liaoning 113000,China)
出处
《辽宁石油化工大学学报》
CAS
2019年第4期72-76,共5页
Journal of Liaoning Petrochemical University
基金
辽宁省教育厅资助项目(L2019020、L2010247)
关键词
稳态振动
弯矩激励
弯矩矢量
转子动力学
Steady‐state vibration
Moment excitation
Moment vector
Rotor dynamics
