某型舰船用转子系统动力学性能分析  

Dynamics performance analysis of certain ship rotor system

作　　者：王嵩[1] 张胜文[1] 彭世警[1] 李国平[2] 章艺[2] 周璞[2] 

机构地区：[1]江苏科技大学机械工程学院,江苏镇江212003 [2]中国船舶重工集团公司第七○四研究所,上海200031

出　　处：《舰船科学技术》2015年第12期83-88,共6页Ship Science and Technology

基　　金：江苏省2014年度普通高校研究生实践创新计划资助项目(SJLX_0487);江苏省科技支撑计划资助项目(2012JX059F);江苏省船舶先进设计制造技术重点建设实验室开放基金资助项目(CJ1201)

摘　　要：转子系统作为汽轮机、发动机和压缩机等旋转机械核心部件,广泛应用于舰船之上,其动力学性能的分析是一个重要研究内容。为保证舰船安全和隐身性能,本文利用有限差分法求解雷诺方程,得到轴承动特性系数;利用Ansys对转子系统进行临界转速分析、不平衡响应分析、匀加速响应分析和冲击响应分析。与传统方法相比,本文考虑了轴承的弹性支撑效应和转子的陀螺效应。结果表明,本转子系统在工作转速下不会产生共振,不平衡响应较小,在匀加速状态和冲击载荷作用下,不会产生较大响应和碰擦,系统安全可靠。轴承动特性计算和有限元转子动力学分析方法,为旋转机械的设计提供指导,具有实际应用价值。Rotor system as the core and important components of the rotating machinery, such as the turbine, engines and compressors, widely used on the ship analysis of its dynamic performance is an important research. To ensure the security and stealth of ship, this article uses the finite difference method for solving Reynolds equation, getting the bearing dynamic coefficients. It uses Ansys to analyze the critical speed, unbalance response analysis, uniformly accelerated response and impact response of the rotor system. Compared with traditional methods, it considers the effect of elastic support bearings and rotor gyroscopic effect. The results show that the rotor system does not produce resonance at operating speed, unbalance response is small, in the state of uniform acceleration and impact loading, it will not produce a greater response and grazing, the system is safe and reliable. Dynamic characteristics calculation method on bearing and finite element analysis method on rotor dynamic, provide guidance for the design of rotating machinery and have practical application value.

关 键 词：转子系统 性能分析 轴承动特性 

分 类 号：TH113[机械工程—机械设计及理论]