【摘要】 为解决某型航空发动机大慢车状态下转速下调的故障问题，以其转速调节器为研究对象，根据其机械机构和工作原理在AMESim平台上构建模型。利用试验结果和转速反馈调节特性由仿真验证了模型的准确性；分析了引起该故障的机制，通过仿真确定了影响因素主要为油门杆角度、发动机进口温度、离心飞重结构参数变化、调节器内弹簧刚度系数衰减，并结合实际工况对上述前3种故障进行排除，最终通过为调节器内弹簧添加预紧力补偿、采用新型材料替代等优化方案解决该故障问题。更多还原

【Abstract】 In order to solve the problem of speed down-regulation of an aeroengine under the condition of large and slow speed, the speed regulator was taken as the research object, and the model was built on the AMESim platform according to its mechanical mechanism and working principle.The accuracy of the model was verified by simulation using the test results and speed feedback regulation characteristics.After that, the mechanism of the fault was analyzed.Through simulation, it was determined that the main influencing factors were throttle angle, engine inlet temperature, centrifugal fly weight structure parameter change, and spring stiffness coefficient attenuation in the regulator.Combined with the actual working conditions, the above three faults were eliminated.Finally, the optimization schemes such as adding preload compensation to the spring in the regulator and replacing with the new material were given to solve the fault problem.更多还原