CAJ | 학술논문

建立了滑动轴承的基于短轴承非线性油膜力模型，通过转速对轴承动力学特性的影响研究，得到了偏心率、最小油膜厚度、最大油膜压力、摩擦功耗、温升、临界轴颈质量、刚度系数、阻尼系数、二维和三维油膜压力的影响因素研究；在对三维油膜压力分析时发现转速存在一个临界值，当转速低于这个临界值时，转速对最大油膜压力影响较大，当转速高于这个临界值时，转速对最大油膜压力影响不大。
건립료활동축승적기우단축승비선성유막력모형，통과전속대축승동역학특성적영향연구，득도료편심솔、최소유막후도、최대유막압력、마찰공모、온승、림계축경질량、강도계수、조니계수、이유화삼유유막압력적영향인소연구；재대삼유유막압력분석시발현전속존재일개림계치，당전속저우저개림계치시，전속대최대유막압력영향교대，당전속고우저개림계치시，전속대최대유막압력영향불대。
Two bearing dynamic models were introduced,including the traditional eight-parameter bearing model and the short-bearing oil film force model.The effects of rotor speed and Sommerfeld number on bearing dynamic characteristics were studied,and the influencial factors were inspected,such as the eccentricity,minimum film thickness, maximum film pressure,friction power,temperature,critical journal mass,stiffness coefficient,damping coefficient,and 2D and 3D film pressure.It was shown that there exists a critical rotor speed when analyzing 3D film pressure,the maximum film pressure is greatly affected by the rotor speed when the rotor speed is below the critical speed,and the maximum film pressure is slightly affected when the rotor speed is higher than the critical speed.