基于SPH算法的机翼油箱晃动分析  

An Analysis of Wing Fuel Tank Sloshing Based on SPH Algorithm

作　　者：赵博伟 赖辉 ZHAO Bowei;LAI Hui

机构地区：[1]成都飞机工业(集团)有限责任公司技术中心,四川成都610092

出　　处：《科技创新与应用》2022年第3期13-17,20,共6页Technology Innovation and Application

摘　　要：飞机在飞行过程中的不同工况下,随着大展弦比机翼自身结构上作用的燃油载荷增加,结构壁板会发生翘曲或者下陷等变形,造成结构破损,导致一定的燃油泄漏,从而对飞行产生不利影响。文章以机翼油箱为计算原型,采用SPH算法进行流固耦合动力仿真分析充液晃动,判断是否存在漏油隐患及油箱结构是否满足强度及刚度设计要求。Under different operating conditions of the aircraft during flight, with the increase of the fuel load acting on the wing structure with large aspect ratio, the structural panels will warp or sink, resulting in structural damage and fuel leakage,which will adversely affect the flight. In this paper, taking the wing fuel tank as the calculation prototype, the fluid-solid coupling dynamic simulation is carried out by using SPH algorithm to analyze the liquid-filled sloshing to determine whether there is a hidden danger of oil leakage and whether the structure of the fuel tank meets the design requirements of strength and stiffness.

关 键 词：SPH算法 机翼油箱 流固耦合 强度和刚度 

分 类 号：V221.91[航空宇航科学与技术—飞行器设计]