摘要
用有限元法建立了力学模型,采用移位迭代法计算了机组轴系统横向振动的自振频率,研究分析了立式机组轴系统的稳定性;提出对振源控制和机组轴系统结构优化的建议,为合理选择机组形式和优化支撑结构提供依据,控制和避免过大的有害振动的发生,保证机组运行的稳定、安全和寿命。
The lateral vibration mechanical model of shaft system is created by the finite element method, and the natural frequency of transverse revolving vibration of shaft system is calculated by replacement iterative method. Suggestions are given according to the results about how to control the vibration sources and how to optimize the structure of shaft system in hydrogenerator set. In addition, some valuable advices are presented for how to choose the style of hydrogenerator set and how to optimize the supporting structure.
出处
《水电能源科学》
2005年第4期70-72,共3页
Water Resources and Power
基金
国家电力公司科学技术项目(KJ00-03-26-01)
关键词
水轮发电机组
自振频率
稳定性
抗振设计
hydro generator unit
natural frequency
stability
anti-vibration design
