CAJ | 학술논문

为保障双转子涡扇发动机的安全试飞，针对双转子涡扇发动机的振动特点，基于飞行试验中发动机振动加装参数专门建立了双转子涡扇发动机的振动基准曲线。与传统单一振动限制值监测的方法相比，基于振动基准曲线的方法充分考虑了发动机的工作状态、发动机的个体振动特点和差异，对发动机振动状态具有更强的敏感性，更能反应发动机的工作状态。通过录取发动机不同工作状态下的试飞数据，建立了某型涡扇发动机高低压转子基频分量的振动基准曲线，为发动机事后离线振动监测提供参考，为发动机的安全试飞提供保障。
위보장쌍전자와선발동궤적안전시비，침대쌍전자와선발동궤적진동특점，기우비행시험중발동궤진동가장삼수전문건립료쌍전자와선발동궤적진동기준곡선。여전통단일진동한제치감측적방법상비，기우진동기준곡선적방법충분고필료발동궤적공작상태、발동궤적개체진동특점화차이，대발동궤진동상태구유경강적민감성，경능반응발동궤적공작상태。통과록취발동궤불동공작상태하적시비수거，건립료모형와선발동궤고저압전자기빈분량적진동기준곡선，위발동궤사후리선진동감측제공삼고，위발동궤적안전시비제공보장。
In order to guarantee the flight test safety of dual-rotor turbofan engine, and in view of the vibration characteristics of dual-rotor turbofan engine, the vibration reference curve of dual-rotor turbofan engine is specially established based on the installed engine vibration parameters in flight test. Compared with the conventional vibration monitoring method on the strength of single limit value, method based on the vibration reference curve fully considers the working state, individual vibration char-acteristics and differences of the aero-engine, and be more sensitive to the aero-engine vibration state and better reactive to the aero-engine working condition. By recording the engine flight test data of different working conditions, the vibration refer-ence curve of certain turbofan engine for high and low pressure rotor fundamental component is established, to provide a refer-ence for the engine afterwards offline vibration monitoring, and to provide guarantee for the safe flight test of aero-engine.