600MW汽轮发电机组轴系非线性动力学响应分析  

An Analysis of the Nonlinear Dynamic Response of a 600MW Turbogenerator Shafting

作　　者：焦映厚[1] 陈照波[1] 荆建平[2] 曲秀全[1] 

机构地区：[1]哈尔滨工业大学机电学院,黑龙江哈尔滨150001 [2]上海交通大学国家振动冲击和噪声重点实验室,上海200030

出　　处：《热能动力工程》2005年第2期178-181,共4页Journal of Engineering for Thermal Energy and Power

基　　金：黑龙江省自然科学基金资助项目(E0220);黑龙江省自然科学重点基金资助项目(ZJG03-1);黑龙江省博士后启动基金资助项目(LRB00012)

摘　　要：采用等参元有限元法建立了国产600MW汽轮发电机组轴系的非线性动力学模型,利用有限元分析程序ADINA对某国产600MW汽轮发电机组轴系的非线性动力学响应进行了分析和计算。在计算中通过ADINA程序提供的用户接口,考虑了滑动轴承的非线性油膜力,并与线性动力学分析计算结果进行了比较,计算结果表明,利用ADINA程序结合非线性动力学理论对大型实际机组轴系进行非线性动力学分析和计算是必要的和可行的。从而为大型实际机组轴系进行非线性动力学稳定性分析和优化设计提供了依据。By employing a finite element method with equal-parameter elements a nonlinear dynamics model was set up for the shafting of a Chinese-made 600MW Turbogenerator. With the use of a finite element analysis program ADINA an analysis and a calculation were conducted of the nonlinear dynamics response of the 600MW turbogenerator shafting. During the calculation, by way of the user interface provided by the program ADINA the nonlinear oil-film force of the journal bearing has been taken into account and compared with the nonlinear dynamics analysis and calculation results. The results of the calculation indicate that the use of the program ADINA in conjunction with a nonlinear dynamics theory is essential and feasible for the nonlinear dynamics analysis and calculation of the shafting of large-sized turbogenerators, thus providing a solid basis for the nonlinear dynamics stability analysis and optimal design of the shafting of specific large-sized units.

关 键 词：非线性 转子 轴承 ADINA 

分 类 号：O322[理学—一般力学与力学基础] TH133[理学—力学]