CAJ | 학술논문

以小型涡扇发动机模拟低压转子为研究对象，采用梁单元建立其动力特性的有限元计算模型，并在不同的支承刚度及轮盘质量下，运用转子动力学分析软件SAMCEF/ROTOR，对模拟低压转子的前三阶临界转速进行了系统计算及分析，揭示出了模拟低压转子前三阶临界转速随各支承刚度、各轮盘质量的变化规律，为模拟低压转子的临界转速设计和调整提供了理论依据，可为后续全尺寸模拟低压转子的动力特性试验提供指导。
이소형와선발동궤모의저압전자위연구대상，채용량단원건립기동력특성적유한원계산모형，병재불동적지승강도급륜반질량하，운용전자동역학분석연건SAMCEF/ROTOR，대모의저압전자적전삼계림계전속진행료계통계산급분석，게시출료모의저압전자전삼계림계전속수각지승강도、각륜반질량적변화규률，위모의저압전자적림계전속설계화조정제공료이론의거，가위후속전척촌모의저압전자적동력특성시험제공지도。
Taking a simulated low-pressure rotor of a small turbofan engine as the researching object, a fi?nite element calculation model on the rotor characteristics was established. The first three stage critical speeds of the LP rotor were calculated and analyzed by SAMCEF/ROTOR software at the conditions of dif?ferent supporting stiffness and different disk mass. The change laws of the first three stage critical speeds with supporting stiffness and disk mass were revealed. The research results provide theoretical bases for crit?ical speed design and critical speed adjustment of the rotor.