航空作动器往复密封结构参数化分析

摘要

The primary seal of aircraft actuators belongs to typical reciprocating seals, which is adopt as a component of the wings, doors, and many other parts of an aircraft, Its failure will directly affect flight safety, and even cause major accidents, therefore it is a great signifi-cance to analyze its sealing structure parameters. In this paper, Reciprocating seals were taken as the research object,it establish a reciprocat-ing seal mixed lubrication model, and used the friction ,reverse pump rate and maximum pressure in contact area as evaluation of sealing per-formance, made parametric analysis of seal structure by changing oil roll Angle, air roll Angle ,and the surface roughness of the sealing lip.%航空作动器主密封是典型的往复密封，广泛应用在飞机机翼、舱门等众多部位。它的失效会直接影响飞行安全，甚至会造成重大的人身事故，因此对其密封结构参数进行分析具有重要意义。本文以往复密封作为研究对象，建立往复密封混合润滑模型，以摩擦力、反向泵回率及接触区接触压力最大值作为评价密封性能好坏的指标，分别改变油侧倾角、空气侧倾角，改变密封唇表面粗糙度，对密封结构进行参数化分析。