连续弹性体水载荷加载方案有限元分析  

Finite Element Analysis on Continuous Elastomer Loading Method of Water Load

作　　者：王海[1] 何月洲[1] 杜星[1] 郗亚琦 Wang Hai;He Yuezhou;Du Xing;Xi Yaqi(AVIC Aircraft Strength Research Institute,Aviation Technology Key Laboratory of Full Scale Aircraft Structure Static and Fatigue Test,Xi’an Shaanxi 710065,China;the Second Hospital of Weinan,Weinan Shaanxi 714000,China)

机构地区：[1]中国飞机强度研究所全尺寸飞机结构静力/疲劳航空科技重点实验室,陕西西安710065 [2]渭南市第二医院,陕西渭南714000

出　　处：《工程与试验》2020年第1期72-74,85,共4页Engineering and Test

摘　　要：当水上飞机着水时,机身船体会承受撞水载荷。在飞机结构强度试验中,按照适航规范中水载荷的试验要求,可以用静载荷模拟机身船体的水载荷。由于船体双曲面结构、水载荷分布复杂等特点,采用传统的离散集中力来加载存在结构局部损伤风险。针对上述试验风险,提出了连续弹性体水载荷的加载方法,建立两种机身船体受载模型进行有限元仿真,分析计算结果可为水上飞机着水情况试验提供参考。The fuselage hull bears the water impact load when seaplanes water landing,and the static load is used to simulate the water load in the structure strength test of seaplanes.Due to the complex distribution of water load and the hyperboloid structure of fuselage hull,there is a huge risk of structure local deformation disharmony when using traditional concentrated force loading methods in the test.For the above test risks,it is proposed that the continuous elastomer loading method of water load,and two loading models are analyzed by finite element method,and the comparison of results provides a reference for the water landing test of seaplanes.

关 键 词：水载荷 聚氨酯弹性体 加载方法 有限元分析 结构强度试验 

分 类 号：V216.1[航空宇航科学与技术—航空宇航推进理论与工程]