CAJ | 학술논문

以2种不同支承形式的中介轴承双转子结构系统为研究对象，建立了对转双转子系统轴向-径向耦合碰摩有限元动力学模型。基于陀螺效应引起轮盘偏转产生轴向位移，导致轴向碰摩的假设，给出了轴向碰摩力与节点坐标之间的表达式，考虑了不同支承形式的中介轴承耦合力处理方式，并以此为基础详细推导了系统的振动微分方程。模型既能描述转静间的轴向碰摩和径向碰摩，又允许轴向碰摩和径向碰摩独立发生，亦可共同发生。
이2충불동지승형식적중개축승쌍전자결구계통위연구대상，건립료대전쌍전자계통축향-경향우합팽마유한원동역학모형。기우타라효응인기륜반편전산생축향위이，도치축향팽마적가설，급출료축향팽마력여절점좌표지간적표체식，고필료불동지승형식적중개축승우합력처리방식，병이차위기출상세추도료계통적진동미분방정。모형기능묘술전정간적축향팽마화경향팽마，우윤허축향팽마화경향팽마독립발생，역가공동발생。
A new axial-radial coupling rubbing dynamincs model of the counter-rotating dual-rotor system is built with the study object of the dual-rotor system with two different inte-shaft bearings. Based on the assumption that the gyroscop-ic effect causes disk deflection which produces axial displacement and leads to axial rubbing, the expression between axial rubbing force and node coordinates could be given. According to the two different intermediary bearing forms, distinct treatment of bearing coupling force is considered. And vibration differential equation of the system is deduced in detail. The model can be used to describe the axial rubbing and radial rubbing between the stator and the rotor, and the axial rub-bing and radial rubbing can occur independently or dependently.