摘要
针对航空发动机振动故障率较高的问题,计算分析双转子-支承系统在碰摩-不平衡故障下的轴承支反力并研究其影响因素.建立了双转子-支承系统和高压涡轮-机匣碰摩的三维有限元模型,利用Ansys 12.0计算了双转子-支承系统在碰摩力和不平衡量引起的简谐激振力作用下的轴承支反力.通过计算多种工况下的动态轴承支反力,获得了碰摩和不平衡量的分布及大小对轴承支反力的影响规律.
To deal with the issue of aero-engine vibration failure, bearing reactions of dual rotorsupporting system caused by rubbing and unbalance were calculated and analyzed. The three- dimensional FEA models of dual rotor-supporting system and high pressure turbine-casing rubbing model were established. With the functions of Ansys 12.0 and contact analysis, bearing reactions were simulated under the rubbing force and unbalance force. By calculating the bearing reaction results under various conditions, the influence of rubbing and unbalance on the bearing reactions were obtained.
出处
《北京理工大学学报》
EI
CAS
CSCD
北大核心
2011年第11期1292-1296,共5页
Transactions of Beijing Institute of Technology
基金
国家自然科学基金资助项目(50875022)
