机械科学与技术2024，Vol.43Issue(4)：704-710,7.DOI:10.13433/j.cnki.1003-8728.20220256
航空安全带织带拉伸力学特性研究
Research on Tensile Mechanical Properties of Aircraft Seat Belt Webbing
摘要
Abstract
Aircraft seat belt is a key component to ensure the safety of passengers.In order to study the tensile mechanical properties of aircraft seat belt webbing,the tensile performance experiments of the AM SAFE seat belt webbing were carried out with the electronic universal testing machine under the loading rates of 6.35 mm/min,30 mm/min,152.4 mm/min,and the gauge segment sizes of 160 mm and 254 mm,and considering the influence of secondary loading.Moreover,three types of seat belt modeling methods,known as the segment belt,the finite element belt,the hybrid belt,were respectively used to simulate and compare the stretching process of seat belt webbing based on the experimental results.The results show that the hysteresis effect of the seat belt webbing is obvious,and the energy dissipation effect is significant;its tensile mechanical properties are little affected by the loading rate,but are greatly affected by the size of the gauge length,and are closely related to the loading times;all three modeling methods can better characterize the tensile mechanical properties of the seat belt webbing.关键词
航空安全带/力学特性/尺寸效应/二次加载/数值仿真Key words
aircraft seat belt/mechanical properties/size effect/secondary loading/numerical simulation分类
航空航天引用本文复制引用
杨欢,刘小川,张宇,惠旭龙,白春玉..航空安全带织带拉伸力学特性研究[J].机械科学与技术,2024,43(4):704-710,7.基金项目
民机专项科研项目(MJ-2017-F15) （MJ-2017-F15）
