某型飞机螺旋桨动密封结构设计及仿真  

Structural Design and Simulation of a Propeller Dynamic Seal of an Aircraft

作　　者：孙中冲 孙强 朱一西 房兴波[2] 高轶 SUN Zhongchong;SUN Qiang;ZHU Yixi

机构地区：[1]无锡职业技术学院,江苏无锡214121 [2]南京航空航天大学,南京210016 [3]上海茸科新型塑料制造有限公司,上海201611

出　　处：《科技创新与应用》2024年第32期40-42,46,共4页Technology Innovation and Application

基　　金：江苏省新能源汽车节能与电池安全工程研究中心项目(苏发改高技发[2022]1103号);江苏省产学研合作项目(BY2022719,BY20230730);江苏省高职院校青年教师企业实践培训项目(2023QYSJ112)。

摘　　要：变桨距螺旋桨是涡轮螺旋桨飞机的重要组成部分,其动密封系统性能直接影响着飞机运行的效率及安全。因此,开展螺旋桨桨根动密封系统的设计与研究具有重要工程实际意义。该文针对螺旋桨变桨距时的往复摆转运动特点,设计出一种橡塑组合密封结构,并采用数值仿真和试验测量相结合的手段,对该组合密封系统开展研究。最终的数值仿真和试验测试表明,所设计的橡塑组合密封系统符合螺旋桨动密封系统的使用要求,未产生泄漏情况,可有效提升螺旋桨密封系统的可靠性,具有重要的工程指导价值。Variable pitch propellers are an important part of turboprop aircraft,and the performance of their dynamic sealing system directly affects the efficiency and safety of aircraft operation.Therefore,carrying out the design and research of the propeller root dynamic sealing system has important engineering practical significance.In this paper,a rubber-plastic combined sealing structure is designed based on the characteristics of reciprocating swinging motion of the propeller when changing pitch,and the combined sealing system is studied by means of numerical simulation and experimental measurement.The final numerical simulation and experimental testing show that the designed rubber-plastic combination sealing system meets the use requirements of the propeller dynamic sealing system and produces no leakage,which effectively improves the reliability of the propeller sealing system and has important engineering guidance value.

关 键 词：螺旋桨 动密封系统 橡塑组合密封 结构设计 有限元仿真 

分 类 号：V235.12[航空宇航科学与技术—航空宇航推进理论与工程]