某发动机高压转子平衡工艺问题分析与排除

Analysis and Elimination of High-Pressure Rotor Balancing Process Problems

转子精确平衡是降低发动机基频振动故障的重要措施。针对某发动机高压转子平衡误差大问题,在分析转子结构和单独平衡工艺基础上,通过模拟转子平衡对比试验和形位尺寸测量检查,判断为模拟转子平衡工装形位精度低所致,为此制定优化组合平衡工艺方法,并提出高压压气机叶片调整及配重块安装优化原则。应用结果表明,该方法满足发动机振动要求,有效降低高压转子的平衡误差,为后续其他发动机高压转子组合平衡应用提供参考。

Accurate rotor balancing is an important measure to reduce the fundamental frequency vibration of engine.For the large balance error in the high-pressure rotor of a certain engine,based on the analysis of the rotor structure and the individual balancing process,it is judged to be caused by low shape and position accuracy of the simulation rotor balance tooling through the comparison test and the position tolerance check in the simulation rotor balance.Therefore,the optimized combined balance process method is built,and the principle of high-pressure compressor blades adjustment and counterweight installation optimization are put forward.The application results show that the methods can meet the engine vibration requirement and effectively reduce the balance error of the high-pressure rotor,which is providing reference for the following application of high-pressure rotor combination balance for other engines.