The possibilities of the vibration accelerations signals parameters application for the assessment of thermodynamic processes in the turbojet engine of the F-16 airplane given in its real work conditions have been presented in the paper. The aim is early detection of negative changes in the mixture formation and combustion processes taking place at the aircraft turbojet engine to maintain the high overall efficiency and safety of aviation tasks. Diagnostics of combustion and injection processes have been conducted for stationary engine investigations in the way to obtain quantity measures (dimensional and non-dimensional) and characteristics for these phenomena in the process value domain. The quality of the fuel injection and combustion, expressed in engine operation parameters of the best sensitivity, has been linked to the particular vibration impulse and energy representations, giving the important functional relations for building a diagnostic system for turbojet F-16 airplane engines for real operating conditions. The results show the proposed method assures early and accurate diagnostics for engine dynamic characteristics, making possible diagnostic system application. The diagnostic system design for combustion and injection processes monitoring and malfunctions detections has been proposed.

本文介绍了振动加速度信号参数在实际工作条件下应用于F-16飞机涡轮喷气发动机热力学过程评估的可能性。目的是及早发现飞机涡轮喷气发动机发生的混合气形成和燃烧过程中的负面变化，以保持较高的总体效率和航空任务的安全性。已经对燃烧和喷射过程进行了诊断，以进行固定式发动机研究，从而获得了过程值域中这些现象的数量度量（尺寸和无量纲）和特征。以最佳灵敏度的发动机运行参数表示的燃油喷射和燃烧质量，已经将其与特定的振动脉冲和能量表示联系起来，从而为构建用于实际运行条件的涡轮喷气F-16飞机发动机诊断系统提供了重要的功能关系。结果表明，该方法可确保对发动机动态特性进行早期准确的诊断，从而使诊断系统的应用成为可能。已经提出了用于燃烧和喷射过程监控以及故障检测的诊断系统设计。