CAJ | 학술논문

以推力轴承中的油膜层作为控制体系，建立了油膜层的非等温三维流场偏微分方程组数学模型，通过采用有限差分方法对其所构成的偏微分方程组进行数值求解。在数值计算的基础上，详细分析了镜板不同转速对推力轴承油膜层速度场分布的影响、油膜层速度矢量分布和油膜层与层之间速度分布规律。研究结果表明：油膜层中的速度矢量分布主要由周向速度和径向速度所组成，其速度矢量分布是构成油膜层对流换热的主要因素。
이추력축승중적유막층작위공제체계，건립 료유막층적비등온삼유류장편미분방정조수학모형，통과채용유한차분방법대기소구성적편 미분방정조진행수치구해。재수치계산적기출상，상세분석료경판불동전속대추력축승유막 층속도장분포적영향、유막층속도시량분포화유막층여층지간속도분포규률。연구결과표명 ：유막층중적속도시량분포주요유주향속도화경향속도소조성，기속도시량분포시구성유막 층대류환열적주요인소。
With the object of study in oil film stratum of thrust bearing, the non-isothermal three-dimensional mathematical model of oil film stratum is formulated and the finite difference method is deduced in this paper. Based on numerical calculation, the influences on the fluid field distribution in oil film of thrust bearing caused by different rotor speed, the velocity vector distribution and the rule of velocity between oil film layers are analyzed in detail. It is thought that the velocity vector distribution in oil film stratum is composed of radial velocity and circumferential velocity and is the dominant factor influencing the heat convection.