基于某型斜交航空轮胎爆破的仿真与误差分析  

Simulation and error analyses on a new test method of bias tire blowout in aircraft certification

作　　者：刘国锋 张琼 李杨 LIU Guo-feng;ZHANG Qiong;LI Yang(Anhui Sanlian University,Hefei 230601 China)

机构地区：[1]安徽三联学院机械工程学院,安徽合肥230601

出　　处：《新余学院学报》2020年第6期23-28,共6页Journal of Xinyu University

基　　金：安徽三联学院校级项目“飞机轮胎爆破载荷研究及舱内关键件安全性分析”(zjt20002)。

摘　　要：航空轮胎爆破不可避免地产生冲击碎片,导致现有的模拟试验无法测得距破口508 mm以内的压强分布。为真实模拟轮胎爆破过程,基于Fluent软件对某型斜交航空轮胎爆破开展仿真研究,分固定开口和可变开口两种模式进行仿真,并对两种模式的差异性进行了比较分析。分别从胎压释放时间、射流场分布特征、测点的压强三方面,与米其林公司轮胎爆破试验数据进行了对比,并对造成误差的原因进行了分析,证明了仿真结果的可靠性,为轮胎失效适航验证开拓了一种新的途径。The burst of aircraft tire inevitably produces impact fragments,which makes it impossible to measure the pressure distribution within 508 mm of the break by existing simulation tests.In this paper a certain type of bias aircraft tire burst simulation was carried out based on Fluent.In order to simulate the tire burst process,the tire burst process was simulated in two modes:fixed opening mode and variable opening mode.The simulation result was compared with the test data of Michelin company in pressure release time,jet field distribution characteristics and measured point pressure,respectively,then the causes of error were analyzed.The reliability of the simulation results was verified,which provides a new way for airworthiness verification of tire failure.

关 键 词：航空轮胎爆破 适航认证 流体仿真 误差分析 

分 类 号：TB122[理学—工程力学]