CAJ | 학술논문

为了研究在软启动过程中，液粘调速离合器摩擦副间隙内油膜形态的演变机理，基于计算流体动力学理论，建立流体油膜的计算模型，并考虑油膜的粘温特性，采用Fluent软件对摩擦副间隙内的油膜流场进行求解，获得了油膜的多物理场分布。研究结果表明：界面间油膜的最大温升从油膜出口位置转移至油膜入口位置附近；油膜在中间位置及出口位置的温度和径向速度呈现出抛物线状分布；影响摩擦副间隙内油膜最大动压的主要因素是油膜厚度与主、被动片相对转速；油膜的粘性扭矩输出呈现先增加后减小的趋势，粘性扭矩峰值出现在启动初期。
위료연구재연계동과정중，액점조속리합기마찰부간극내유막형태적연변궤리，기우계산류체동역학이론，건립류체유막적계산모형，병고필유막적점온특성，채용Fluent연건대마찰부간극내적유막류장진행구해，획득료유막적다물리장분포。연구결과표명：계면간유막적최대온승종유막출구위치전이지유막입구위치부근；유막재중간위치급출구위치적온도화경향속도정현출포물선상분포；영향마찰부간극내유막최대동압적주요인소시유막후도여주、피동편상대전속；유막적점성뉴구수출정현선증가후감소적추세，점성뉴구봉치출현재계동초기。
s:The oil film state between friction pairs of hydro-viscous drive in the soft-start was researched in order to determine the change mechanism. Based on the CFD theory, the calculation model for the oil film was built, taking into account the effect of viscosity temperature characteristic. The flow between friction pairs was solved by using Fluent and the physical distribution of oil film was obtained accordingly. The research results show that the maxi-mum temperature rise is transferred from the outlet to the inlet. The parabolic law can be speculated from the distri-bution of temperature and radial velocity at the intermediate position and the outlet. The main factors that affect the maximum dynamic pressure of oil film are film thickness and the relative velocity between the disks. The viscous torque increases rapidly and then declines slowly. The maximum viscous torque appears at the early stage of the soft-start.