航空发动机多轴加载试验系统与装配偏差识别研究  

Research on Multi-Axial Excitation Test System and Assembly Deviation Identification of Aero-Engine

作　　者：李琳 岳聪 范建瑜 周烁 LI Lin;YUE Cong;FAN Jianyu;ZHOU Shuo(AECC Shanghai Commercial Aircraft Engine Manufacturing Co.,Ltd.,Shanghai 201306,China;Shanghai Maritime University,Shanghai 201306,China)

机构地区：[1]中国航发上海商用航空发动机制造有限责任公司,上海201306 [2]上海海事大学,上海201306

出　　处：《航空制造技术》2022年第18期86-91,共6页Aeronautical Manufacturing Technology

基　　金：工业和信息化部资助项目(2017-Ⅶ-0010-0105);上海市青年科技英才扬帆计划(19YF1452400)。

摘　　要：航空发动机高压转子具有典型的螺栓连接结构。为了研究螺栓连接的装配性能与复合载荷之间的作用关系,开发了一套具有轴向拉力和横向振动同时激励的多轴加载试验系统。设计了试验系统稳定性与螺栓装配偏差的试验方案并开展测试分析。试验结果表明,多轴加载系统控制激振前后轴向载荷变化范围不大于0.003 kN时,频响特性稳定有效;当不同位置螺栓存在装配偏差时,会同时对振动响应频率和幅值产生影响。最后建立XGBoost智能算法,利用特定频响峰值与幅值有效识别了螺栓装配偏差方位角。The high pressure rotor of aero-engine has a typical bolted connection structure.In order to study the relationship between the assembly performance of bolted connection and the composite load,a multi-axial excitation test system with axial tension and transverse vibration excitation is developed.The experiments of the system stability and the bolt assembly deviation are both designed and tested.The experimental results show that the frequency response characteristics are stable and effective when the variation range of the front and rear axial loads is less than 0.003 kN.When bolt assembly deviations exist in different positions,both vibration response frequency and amplitude will be affected.Finally,XGBoost intelligent algorithm is established to effectively identify the location of bolt assembly deviation by using specific frequency response peak value and amplitude.

关 键 词：高压转子 多轴激励 振动特性 装配偏差 预测算法 

分 类 号：V263.2[航空宇航科学与技术—航空宇航制造工程]