航空学报 > 2007, Vol. 28 Issue (6): 1461-1467

航空发动机高速球轴承动态特性分析

王黎钦,崔立,郑德志,古乐   

  1. 哈尔滨工业大学 机电工程学院
  • 收稿日期:2006-10-31 修回日期:2007-01-15 出版日期:2007-12-15 发布日期:2007-12-15
  • 通讯作者: 王黎钦

Analysis on Dynamic Characteristics of Aero-engine Highspeed Ball Bearings

Wang Liqin,Cui Li,Zheng Dezhi,Gu Le   

  1. School of Mechatronics Engineering, Harbin Institute of Technology
  • Received:2006-10-31 Revised:2007-01-15 Online:2007-12-15 Published:2007-12-15
  • Contact: Wang Liqin

摘要:

高速滚动轴承的动态特性对航空发动机转子系统的性能有重要的影响,为尽可能真实模拟轴承实际运转情况,建立轴承零件相互作用模型得到各零件之间力和力矩,使用较精确的弹流模型计算拖动力,采用拟动力学法建立任意受载的球轴承动力学分析模型,提出了工程中非线性方程组的高效解法。编制调试了计算程序READ ( Rolling Element bearing Advanced Dynamics tool),以276927NK1W1(H)航空轴承为算例分析了工况参数和结构参数对滚动轴承动态特性的影响规律,最后通过Gupta的动力学程序算例验证了程序的准确性。轴承动态特性的研究为研究航空发动机转子轴承集成系统动态性能分析奠定了基础。

关键词: 球轴承, 动态特性, 拟动力学, 非线性方程组, 联合载荷

Abstract:

The dynamic characteristics of ball bearings at high speed have important effects on the rotor system of aero-engine. In order to simulate the actual working conditions, the dynamic analysis model of ball bearings under arbitrary loads is established by quasi-dynamic method, by which forces and moments are obtained from inter action model of bearing parts, and the traction force is computed by an accurate traction model. The efficient solution method of nonlinear equations is proposed.

Key words: ball , bearing,  , dynamic , characteristic,  , quasi dynamic,  , nonlinear , equation,  , combined , load

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