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介绍了一种通过对CFM56-7B发动机在翼孔探检查来评估高压涡轮转子叶片前灰尘积累情况的方法,并选取不同使用时间的8台发动机进行数据对比,分析得出灰尘的堆积量与发动机使用时间、使用循环的关系,探讨提前预判发动机高压涡轮转子叶片严重损伤的可行性,减少非计划换发,为计划性换发提供理论依据。
A method to evaluate the accumulation of dust in the front of high-pressure turbine rotor blades by CFM56-7B engine is introduced. The comparison of the data of eight engines with different operating time shows that the accumulation of dust is similar to that of the engine Using the time, using the relationship between cycles to discuss the feasibility of early prediction of severe damage to the engine turbine blades of high-pressure turbine to reduce the non-planned replacement, to provide a theoretical basis for the planned replacement.