飞机动载作用下轮胎-积水道面相互作用分析  

An Analysis of Interaction on Tire-Wet Pavement under Aircraft Dynamic Load

作　　者：蔡靖[1,2] 沈詟 周宁 李岳 范怡飞[1] CAI Jing;SHEN Zhe;ZHOU Ning;LI Yue;FAN Yifei(School of Traffic Science and Engineering,Civil Aviation University of China,Tianjin 300300,China;Civil Aviation Airport Intelligent Construction and Industrialization Engineering Technology Research Center,Tianjin 300456,China)

机构地区：[1]中国民航大学交通科学与工程学院,天津300300 [2]民航机场智能建造与工业化工程技术研究中心,天津300456

出　　处：《空军工程大学学报》2025年第2期1-10,共10页Journal of Air Force Engineering University

基　　金：国家自然科学基金面上项目(52472369);民航机场智能建造与工业化工程技术研究中心开放课题(MHJGKFKT-01)。

摘　　要：基于起落架-轮胎-积水道面动力耦合仿真模型并考虑道面平整度影响,获得起飞、着陆阶段轮胎轮心动位移时程曲线,在此基础上运用有限元软件仿真分析着陆和起飞阶段动载作用下积水道面支撑力、接触面积及位移阻力的变化规律,从而获得动载作用下临界滑水速度的动载影响系数。研究结果表明:在起飞、着陆阶段,道面支撑力、轮胎与道面接触面积、位移阻力及临界滑水速度均较静载作用下有所降低。起飞阶段,道面支撑力与静载作用时相差较小,位移阻力较静载下降低0.3~3 kN,临界滑水速度降低值在5.5 km/h以内;着陆阶段,道面支撑力较静载降低5%~10%,对应位移阻力最大降幅达到50%,临界滑水速度存在急剧变化的情况,差值在5~9 km/h。综合上述临界滑水速度变化规律,定义动静载临界滑水速度比值为动载影响系数,不同滑行工况下该系数取值在0.95~0.99;鉴于着陆阶段飞机临界滑水速度降低较大,滑水风险更高,偏于安全将动载影响系数取为0.96。Based on the dynamic coupling simulation model of landing gear-tire-wet pavement in consideration of the influence of pavement flatness,the time history curves of tire wheel cardiac displacement at take-off and landing stages are obtained.On this basis,the finite element software is used to simulate and analyze the variation law of supporting force,contact area and displacement resistance of accumulated pavement under dynamic load at landing and takeoff stages,obtaining the dynamic load influence coefficient of critical hydroplaning speed under dynamic load.The results show that the pavement support force,contact area between tire and pavement,displacement resistance and critical hydroplaning speed are all lower than those under static load at take-off and landing stages.At take-off stage,the difference between pavement support force of dynamic and static load is small,the displacement resistance decreases by 0.3~3 kN compared with the static load,and the critical hydroplaning speed decreases within 5.5 km/h;At landing stage,the pavement support force is reduced by 5%~10%compared with the static load,and the corresponding displacement resistance is reduced to the maximum by 50%.The critical hydroplaning speed changes sharply,and the difference is between 5 and 9 km/h.Based on the above-mentioned change law of critical hydroplaning speed,the ratio of critical hydroplaning speed of dynamic and static load is defined as the influence coefficient of dynamic load,and the value of this coefficient is a range from 0.95 to 0.99 under different taxiing conditions;In view of the fact that the critical hydroplaning speed of the aircraft decreases greatly during the landing stage and the hydroplaning risk is higher,the dynamic load influence coefficient is taken as 0.96 for safety.

关 键 词：飞机动载作用 轮胎-道面相互作用 临界滑水速度 道面支撑力 位移阻力 动载影响系数 

分 类 号：V351[航空宇航科学与技术—人机与环境工程]