非线性非稳态油膜支撑的密封-转子系统流体激励行为  

Airflow-Induction Dynamics of Seal Rotor System with Nonlinear and Unstable Oil Film Supported

作　　者：姚宝恒[1] 杨霞菊[2] 刘岩[3] 佟德纯[2] 陈兆能[2] 孟光[2] 

机构地区：[1]上海交通大学船舶海洋与建筑工程学院,上海200030 [2]上海交通大学机械与动力工程学院,上海200030 [3]上海汽轮机有限公司,上海200240

出　　处：《上海交通大学学报》2005年第2期320-323,共4页Journal of Shanghai Jiaotong University

基　　金：国家高技术研究发展计划(863)项目(2002AA526013-8);上海市优秀学科带头人计划资助项目(04XD14012)

摘　　要：将非线性非稳态油膜力模型与密封流体Muszynska模型结合,对非线性非稳态油膜力支承下的密封-转子系统流体激励行为进行了研究,发现其响应随转速比的变化具有复杂的动力学行为,产生了包括周期、拟周期等丰富的振动现象,具有很强的非线性特征.The model of nonlinear and unstable oil film force was combined with Muszynska mode of seal fluid and the concerned nonlinear dynamics was studied. Complex dynamical responses of airflow-induction are detected with rotary speed variation, which include periodic and quasi-periodic vibrant phenomena with strong nonlinear character.

关 键 词：非线性非稳态油膜 密封-转子系统 动力学 数值模拟 

分 类 号：O415.5[理学—理论物理]