基于概率-概率盒混合模型的气囊座椅防护特性可靠性分析方法

doi:10.3901/JME.2022.24.324

机械工程学报 ›› 2022, Vol. 58 ›› Issue (24): 324-333.doi: 10.3901/JME.2022.24.324

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基于概率-概率盒混合模型的气囊座椅防护特性可靠性分析方法

刘鑫^1,2, 何泽波¹, 周振华¹, 胡林¹

1. 长沙理工大学工程车辆安全性设计与可靠性技术湖南省重点实验室长沙 410114;
2. 重庆大学机械传动国家重点实验室重庆 400044

收稿日期:2022-03-27 修回日期:2022-10-05 出版日期:2022-12-20 发布日期:2023-04-03
通讯作者: 刘鑫(通信作者),男,1981年出生,博士,教授,湖南省杰出青年科学基金获得者。主要研究方向为机械结构可靠性技术。;Email:lxym810205@163.com
作者简介:刘鑫(通信作者),男,1981年出生,博士,教授,湖南省杰出青年科学基金获得者。主要研究方向为机械结构可靠性技术。Email:lxym810205@163.com;何泽波,男,1997年出生,硕士研究生。主要研究方向为结构可靠性优化设计技术。Email:h1z1bo@163.com;周振华,男,1984年出生,博士,讲师。主要研究方向为机械结构优化设计方法。E-mail:jerry.chou@csust.edu.cn;胡林,男,1978年出生,博士,教授。主要研究方向为车辆动力学控制与智能化、交通事故深入调查及预防。E-mail:hulin@csust.edu.cn
基金资助:
国家自然科学基金（51775057）、湖南省杰出青年科学基金（2021JJ10040）、湖南省教育厅科学研究（20K008）和机械传动国家重点实验室开放基金（SKLMT-MSKFKT-202001）资助项目。

Hybrid Reliability Approach for Airbag Seat Protection Performance Based on Probability and Probability Box Models

LIU Xin^1,2, HE Zebo¹, ZHOU Zhenhua¹, HU Lin¹

1. Hunan Province Key Laboratory of Safety and Reliability Technology for Engineering Vehicle, Changsha University of Science and Technology, Changsha 410114;
2. The State Key Laboratory of Mechanical Transmissions, Chongqing University, Chongqing 400044

Received:2022-03-27 Revised:2022-10-05 Online:2022-12-20 Published:2023-04-03

摘要/Abstract

摘要： 针对不确定因素对载人空降气囊座椅防护性能的影响，提出一种基于概率-概率盒混合模型的气囊座椅防护特性可靠性分析方法。研制空降乘员气囊座椅，并建立相应的“假人-座椅”数值分析模型，通过开展装备落地碰撞试验对数值模型进行试验验证；然后，根据可靠性问题中的混合不确定性变量，在概率-概率盒混合模型基础上构建适用于气囊座椅防护特性的可靠性分析模型，并借助等概率变换和不确定性变量的区间分析将原始的双层嵌套的优化问题转化成单层优化问题，实现循环嵌套优化问题的解耦，从而提高可靠性指标的求解效率；最后，采用近似模型技术和隔代映射遗传算法完成对可靠性指标的高效求解。结果表明，该方法能有效对气囊座椅的防护特性进行可靠性评估，在装备空降技术领域具有一定的实际工程意义。

关键词: 气囊座椅, 载人空降, 混合模型, 可靠性分析

Abstract: Considering the influence of uncertainties on protection performance of airbag seat in manned airdrop, a hybrid reliability approach based on probability and probability box models is presented for the protection performance. Firstly, the airbag seat is developed and the numerical model of the "dummy-seat" is established, which is verified by the real equipment airdrop experiment. Then, according to the mixed uncertainty variables in the reliability problem, a reliability analysis model of airbag seat protection characteristics based on probability and probability box hybrid model is constructed. Through equal probability transformation and interval analysis of uncertain variables, the original double-layer nested optimization problem is transformed into a single-layer optimization problem to realize the decoupling of nested optimization problem. Based on this decoupling strategy, the efficiency of solving reliability index could be improved. Finally, the approximate model technology and intergeneration projection genetic algorithm (IP-GA) are adopted to obtained the reliability index. The results demonstrate that the proposed method could effectively evaluate the reliability of protection performance of airbag seat. The method can also be used in the field of other airdrop protections.

Key words: airbag seat, manned airdrop, hybrid model, reliability analysis

中图分类号:

V224

刘鑫, 何泽波, 周振华, 胡林. 基于概率-概率盒混合模型的气囊座椅防护特性可靠性分析方法[J]. 机械工程学报, 2022, 58(24): 324-333.

LIU Xin, HE Zebo, ZHOU Zhenhua, HU Lin. Hybrid Reliability Approach for Airbag Seat Protection Performance Based on Probability and Probability Box Models[J]. Journal of Mechanical Engineering, 2022, 58(24): 324-333.

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基于概率-概率盒混合模型的气囊座椅防护特性可靠性分析方法

Hybrid Reliability Approach for Airbag Seat Protection Performance Based on Probability and Probability Box Models

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