关键词: 航空发动机;地面试车;性能验收;防喘调节

Abstract: Based on the principle of anti-surge governor and relative parameters,the process of a turbofan engine flight point performance validation through ground test is analyzed.The total temperature corrected coefficients of high-pressure compressor exit,main combustor exit and low-pressure turbine exit at flight point and its similar point on ground test are investigated using the engine steady performance calculation program.Further more,thrust check index on ground test rig is calculated,considering performance tolerance among different engines.The results show that the mechanism and method proposed is correct.The mechanism and method are useful to check and accept the aero-engine flight point performance through ground test rig.

Key words: Gas turbine engine;Ground test;Performance check index;Anti-surge adjust