典型航空座椅/乘员系统水平冲击特性实验

doi:10.7527/S1000-6893.2022.26238

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典型航空座椅/乘员系统水平冲击特性实验

杨欢^1,2, 刘小川^1,2, 白春玉^1,2, 张宇^1,2, 惠旭龙^1,2

1. 中国飞机强度研究所, 西安 710065;
2. 结构冲击动力学航空科技重点实验室, 西安 710065

收稿日期:2021-08-17 修回日期:2022-03-15 出版日期:2022-06-15 发布日期:2022-03-11
通讯作者: 刘小川,E-mail:asri02@163.com E-mail:asri02@163.com
基金资助:
国家级科研项目

Experiment on longitudinal dynamic impact characteristics of typical aircraft seat/occupant system

YANG Huan^1,2, LIU Xiaochuan^1,2, BAI Chunyu^1,2, ZHANG Yu^1,2, XI Xulong^1,2

1. Aircraft Strength Research Institute of China, Xi'an 710065, China;
2. Aviation Key Laboratory of Science and Technology on Structures Impact Dynamics, Xi'an 710065, China

Received:2021-08-17 Revised:2022-03-15 Online:2022-06-15 Published:2022-03-11
Supported by:
National Scientific Research Project

摘要/Abstract

摘要： 为研究典型航空座椅/乘员系统的水平冲击特性和载荷传递规律，基于结构水平冲击实验台系统，综合考量脉冲波形、假人响应和座椅响应，模拟座椅/乘员系统水平动态冲击过程，测试和分析假人运动过程和运动轨迹、假人内部加速度和载荷响应、座椅结构典型部位加速度和典型部位应变等，并基于实验结果研究座椅/乘员系统动态冲击响应的变化规律。结果表明：假人头部运动显著，假人内部响应变化趋势与加速度脉冲波形相近，且假人骨盆加速度和腰椎载荷最大，受损概率最大；座椅和假人均具有两条载荷传递路径，载荷主要经过座椅后椅腿和假人腰椎部位；座椅结构整体处于弹性变形阶段，典型加速度的变化趋势与加速度脉冲波形相近，后椅腿及其与后椅管和扶手架连接处受载显著应变最大；座椅内部加速度和应变与对应标记点的Z向距离密切相关。

关键词: 水平冲击, 航空座椅, 假人, 载荷传递路径, 动态冲击响应

Abstract: This paper studies the longitudinal dynamic impact characteristics and the load transfer law of the typical aircraft seat/occupant system. With a comprehensive consideration of the pulse waveform, dummy response and seat response, the longitudinal dynamic impact process of the seat/occupant system is simulated based on the structure longitudinal dynamic crash test sled system to test and analyze the motion process and the trajectory of the dummy, the response of the internal acceleration and load of the dummy, and the acceleration and the strain of the typical part on the seat structure. The changing law of dynamic impact response of seat/occupant system is researched based on the experimental results. The results show that the dummy has significant head movement, the change trend of the dummy internal response is similar to the acceleration pulse waveform, and the pelvic acceleration and the lumbar spine load of the dummy are the largest, and the probability of the damage is the largest. Both the seat and the dummy have two load transfer paths, and the load mainly passes through the seat back leg and the dummy lumbar spine. The whole seat structure is in the elastic deformation stage, with the change trend of the typical acceleration being similar to the acceleration pulse waveform, and the seat back leg and the joint between the seat back tube and the armrest frame being subject to the greatest load and the maximum strain. The acceleration and the strain inside the seat are closely related to the Z-direction distance of the corresponding marking point.

Key words: longitudinal dynamic impact, aircraft seat, dummy, load transfer path, dynamic impact response

中图分类号:

V216.5⁺5

杨欢, 刘小川, 白春玉, 张宇, 惠旭龙. 典型航空座椅/乘员系统水平冲击特性实验[J]. 航空学报, 2022, 43(6): 526238.

YANG Huan, LIU Xiaochuan, BAI Chunyu, ZHANG Yu, XI Xulong. Experiment on longitudinal dynamic impact characteristics of typical aircraft seat/occupant system[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2022, 43(6): 526238.

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主管单位：中国科学技术协会主办单位：中国航空学会北京航空航天大学

典型航空座椅/乘员系统水平冲击特性实验

Experiment on longitudinal dynamic impact characteristics of typical aircraft seat/occupant system

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