F119发动机高压涡轮叶片的振动问题是1993年元月在工程和发展型(EMD)F119发动机开始试车后一个月出现的(详见本刊1994年第8期)。工程师们花了11个月时间对此进行诊断。1994年初,经过详尽的分析,研究人员设计了一个试验项目来证实他们的观点并验证解决问题的方法。在此试验中他们采用了3台EMD F119发动机分别进行了海平面静态试验、海平面初始耐久性试验和高空台试验。1994年得出的试验结果肯定了工 The vibration problem of the F119 engine HP turbine blade occurred one month after the test run of the Engineering and Development (EMD) F119 engine was started in January 1993 (for details see Issue 8, 1994). Engineers took 11 months to diagnose this. In early 1994, after a detailed analysis, researchers designed a pilot project to validate their perspective and validate the solution to the problem. In this test, they used three sets of EMD F119 engines to conduct static test at sea level, initial sea level durability test and high altitude test. The test results obtained in 1994 confirmed the work