航空发动机外场振动问题分析与研究  

Research and Analysis of in-field Vibration Problem for Aero-engine

作　　者：邓午立 王娟[1] 

机构地区：[1]中航工业沈阳发动机设计研究所,辽宁沈阳110015

出　　处：《航空科学技术》2014年第4期19-23,共5页Aeronautical Science & Technology

摘　　要：针对某型航空发动机在外场使用过程中出现的整机振动异常问题,根据现场实物检查、飞参数据判读以及比对发动机返厂后的分解检查结果,总结归纳了几种典型振动问题的表现形式和产生的原因。研究结果表明,不同部位的转子、静子碰磨是造成发动机整机振动异常的主要因素。确定了整机振动异常分析检查工作内容,制订了规范的工作流程,并提出了出现振动问题后发动机不返厂应满足的条件。根据振动值超出使用规定的程度、结构是否产生损伤和发动机其他参数表现,决定发生振动问题的发动机是否可以继续使用。In view of the vibration problems of one aero-engine used in the ifeld, according to on-site physical inspection and flight data interpretation and comparison decomposition results of aero-engine after returning factory, the manifestations and causes of several typical vibration problems were summarized and concluded. The result shows that, the rub of the rotor and stator on different parts is the main factors causing abnormal aero-engine vibration. The context of analysis and inspection work was conifrmed after the abnormal vibration, and the standard work processes were drawn up, and the conditions met not to return factory for aero-engine after occurring vibration problems were put out. According to the vibration value beyond the prescribed degree, structure damage or not and other parameters of the aero-engine performance, the aero-engine occurred vibration problems was determined to continue service or not.

关 键 词：航空发动机 外场振动 检查流程 振动异常 

分 类 号：V263.6[航空宇航科学与技术—航空宇航制造工程]