引言国外先进国家对发动机主轴的疲劳寿命试验主要模拟主轴所承受的轴向力、稳态传递扭矩(主扭矩)和振动扭矩(次扭矩),并以此来决定其飞行寿命。对于常作机动飞行的飞机,其发动机主轴尚受到一个不可忽视的陀螺力矩载荷的影响,在实飞中所引起的事故,给我们留下深刻的记忆。我公司引进的这套发动机轴综合加载疲劳试验系统,可对主轴同时施加陀螺力矩、轴向力、主、次扭矩。具有操作简便,自动化程度高,加载精度高,工作可靠等优点。一、系统概况本系统由载荷控制子系统、直流驱动子系统、数据采集子系统、试验件加热子系统、液压加载子系统以及机械及润滑等子系统组成。 Introduction The fatigue life test of the engine main shaft by advanced foreign countries mainly simulates the axial force, steady-state transmission torque (main torque) and vibration torque (secondary torque) of the main shaft, and determines its flight life. For the plane that is often used for maneuvering, its engine spindles are still subjected to a gyroscopic moment load that can not be neglected. The accidents caused in real flying leave us with profound memories. The company introduced the engine shaft integrated loading fatigue test system, the spindle can simultaneously apply gyroscopic torque, axial force, the main and secondary torque. Has the advantages of easy operation, high degree of automation, high loading accuracy, reliable work. First, the system overview The system consists of load control subsystem, DC drive subsystem, data acquisition subsystem, test subsystem heating subsystem, hydraulic loading subsystem and mechanical and lubrication subsystem.