CAJ | 학술논문

利用有限元方法建立了航空发动机双转子系统耦合非线性动力学模型，采用MATLAB计算了系统的临界转速和振型；研究了双转子结构的稳态不平衡响应，给出了双转子-机匣系统在不同转速下的运动规律，为工程中双转子系统的设计提供了一定的理论支持。
이용유한원방법건립료항공발동궤쌍전자계통우합비선성동역학모형，채용MATLAB계산료계통적림계전속화진형；연구료쌍전자결구적은태불평형향응，급출료쌍전자-궤갑계통재불동전속하적운동규률，위공정중쌍전자계통적설계제공료일정적이론지지。
The coupling nonlinear dynamic model of dual-rotor system was established by using finite element method,and then the critical speed of revolution and mode shape were calculated by using the software MAT-LAB.In addition,the unbalance responses of dual-rotor system were studied,and the vibration performances in different speeds of dual-rotor-casing systems were obtained.The research provides a theoretical basis for the de-sign of the dual-rotors system in engineering.