某压气机试验件转子平衡精度分析

航空发动机及其转动部件运行的平稳性与转动件的平衡品质密切相关.为保证压气机试验件可靠运行,分析了压气机转子静平衡、初始动平衡、最终动平衡允许剩余不平衡量控制方法,以及最终动不平衡量的分配方法,并针对某压气机试验件转子,通过采取零件静平衡、组件初始动平衡、转子最终低速动平衡的分步平衡方法,保证了该试验件转子的平衡品质.试验运行结果表明:采取分步平衡精度控制方法,试验件运行平稳、振动水平低.

Analysis of balance precision for a compressor test rig

Stationarity of aeroengine and its rotor components have relations with the rotor balance quality. For the compressor testarticle reliable operation, permission unbalance value for static balance, initial dynamic balance and final dynamic balance of compressorrotor were analyzed,and distributing method of final dynamic unbalance was introduced. For a compressor test article rotor,the balanceprecision was controlled by substep balance method, including static balance of parts, initial dynamic balance of compressor rotor assembleand final low speed dynamic balance of test article rotor. Result shows that substep balance method is effective for compressor test articlerotor, the test article worked well, the vibration value is small.