机体弹性对起落架载荷影响分析  

Analysis of Influence of Airframe Elasticity on Landing Gear Load

作　　者：张健 闫昱 童亚斌 ZHANG Jian;YAN Yu;TONG Yabin(XAC Commercial Aircraft Co.,Ltd.,Xi’an 710089,China)

机构地区：[1]西飞民用飞机有限责任公司,陕西西安710089

出　　处：《飞机设计》2021年第2期28-31,45,共5页Aircraft Design

摘　　要：基于ADAMS软件建立了不同起落架布局的含弹性机体的全机多体动力学模型,进行了全机着陆仿真分析,研究了不同起落架布局的飞机机体弹性对起落架地面载荷的影响:对大多数机翼起落架布局的飞机,机体弹性减缓了起落架载荷;而对于机身起落架布局的飞机,考虑机体弹性后,起落架载荷有可能增大,也有可能减小。不同的飞机构型、不同的缓冲器参数,机体弹性的影响规律可能会有不同,需要根据具体情况作具体分析,因此,在起落架地面载荷的设计过程中,考虑机体弹性的影响有重要意义。Based on ADAMS software,several full aircraft multi-body dynamic models with the elastic body were established,the simulation analysis of aircraft landing was carried out,and the influence of airframe elasticity on landing gear load were studied.For most aircrafts with the landing gear installed on the wing,the airframe elasticity decrease the gear load,and for aircraft with gear installed in the fuselage,the landing gear load may increase or decrease.Different aircraft different configuration and buffer parameters,the influence law could be different,which need to be analyzed specifically.Therefore,it is significant to consider the influence of airframe elasticity in the design of landing gear ground load.

关 键 词：全机多体动力学模型 机体弹性 起落架载荷 

分 类 号：V226[航空宇航科学与技术—飞行器设计]