不同加载工况对腰椎响应指标影响研究

taptap点点手机网页 ›› 2025, Vol. 43 ›› Issue (1): 20-26.

不同加载工况对腰椎响应指标影响研究

芮向前 1 ，崔书瑞 2a ，石霄鹏 2b

1. 湖北航宇嘉泰飞机设备有限公司，湖北襄阳

441046；

2. taptap下载安装安卓 a. 安全科学与工程学院； b. 科技创新研究院，天津 300300

收稿日期:2024-10-24 修回日期:2025-01-16 出版日期:2025-04-09 发布日期:2025-04-09
作者简介:芮向前（1988— ），男，河南漯河人，工程师，学士，研究方向为飞机结构强度
基金资助:
天津市教委科研计划项目（2022KJ070）

Study on the influence of different loading conditions on lumbar response index

RUI Xiangqian1 , CUI Shurui 2a , SHI Xiaopeng2b

1. Jiatai Aircraft Equipment Co., Ltd., Xiangyang 441046, Hubei, China; 2a. College of Safety Science and Engineering;

2b. Innovation Research Institute of Science and Technology, CAUC, Tianjin, 300300, China

Received:2024-10-24 Revised:2025-01-16 Online:2025-04-09 Published:2025-04-09

摘要/Abstract

摘要：

腰椎载荷和动态响应指数（DRI, dynamic response index）是评估飞机应急着陆过程中乘员腰椎损伤的两种

常见腰椎响应指标。为明确这两种指标的差异，首先，本文建立了座椅-乘员有限元模型和乘员上肢集中参数

模型；其次，对座椅-乘员有限元模型和乘员上肢集中参数模型进行对比验证；最后，通过改变加载时间和

加载峰值对这两种腰椎响应指标进行变参分析。计算结果表明，采用地板加速度计算的 DRI 值较采用骨盆

加速度计算的 DRI 值更低，且当加载时间一定时，随着加载峰值的增加，DRI 值呈增长趋势；当加载峰值一

定时，随着加载时间的增加，DRI 值呈先增加后减小趋势；当速度变化量一定时，随着加载峰值的增加，DRI

值呈增长趋势。综上，通过梳理和分析 DRI 的作用原理，有助于促进乘员腰椎损伤判定标准的持续完善。

关键词:

动态响应指数（DRI）, 集中参数模型, 腰椎损伤

Abstract:

Lumbar load and dynamic response index (DRI) are two common lumbar response index used to assess passenger

lumbar injuries during emergency landing of aircraft. To elucidate the differences between these two metrics, firstly,

the seat-occupant finite element model and the occupant upper limb lumped parameter model were established in

this paper. Secondly, a comparative verification is conducted between the seat-occupant finite element model and

the occupant upper limb lumped parameter model. Finally, a parametric analysis was conducted on these two lumbar response index by changing the loading time and loading peak value. The results show that the DRI value calculated by floor acceleration is lower than that calculated by pelvic acceleration, and when the loading time is constant, the DRI value shows an increasing trend with the increase of loading peak value. When the loading peak value is constant, the DRI value shows the trend of increasing first and then decreasing with the increase of loading

time. When the speed change is constant, the DRI value shows an increasing trend with the increase of the loading

peak value. In summary, by sorting out and analyzing the principle of DRI, it is helpful to promote the continuous

improvement of the criteria for determining occupant lumbar injuries.

Key words:

dynamic response index (DRI), lumped parameter model, lumbar injury

中图分类号:

V223+ .2

芮向前 , 崔书瑞 a , 石霄鹏 b. 不同加载工况对腰椎响应指标影响研究[J]. taptap下载安装安卓学报, 2025, 43(1): 20-26.

RUI Xiangqian , CUI Shurui a , SHI Xiaopengb.

Study on the influence of different loading conditions on lumbar response index

[J]. Journal of Civil Aviation University of China, 2025, 43(1): 20-26.

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