磁流变限力安全带的设计原理

中国机械工程 ›› 2016, Vol. 27 ›› Issue (04): 503-507.

磁流变限力安全带的设计原理

赵晓昱;王晓聪;王岩松;汪佳农

上海工程技术大学,上海,201620

出版日期:2016-02-25 发布日期:2016-03-03
基金资助:
国家自然科学基金资助项目(51175320)

Design Principle of Magnetorheological Force Limited Seatbelt

Zhao Xiaoyu;Wang Xiaocong;Wang Yansong;Wang Jianong

Shanghai University of Engineering Science,Shanghai,201620

Online:2016-02-25 Published:2016-03-03
Supported by:

摘要/Abstract

摘要：

为了避免车用安全带在紧急锁止时对人体造成伤害，研究了一种可主动控制安全带约束力的磁流变限力器。介绍了限力器的控制原理和结构；运用磁饱和分析法探索了限力器阻尼力与外控电流的对应关系；根据人体胸部的安全承载能力，确立了限力器的限力极值,通过一算例验证了其可行性。该磁流变限力器与复合敏感式安全带锁止器配合,可实现智能控制且可以反复使用。

关键词: 安全带, 磁流变限力器, 胸部约束, 磁饱和分析, 阻尼力方程

Abstract:

An active limiter for seatbelt constrain force with MRF was proposed.This MRF force limiter was designed in order to avoid having a harmful effect on human body when seatbelt emergency locking.The control principles and structure for MRF force limiter were proposed.To research corresponding relationship between the limited damping force and external control current the magnetic saturation analysis method was adopted.Limiting value of limiter was set up according to chest load-carrying capability,and its feasibility was verified by a numerical example. The MRF force limiter can be used with emergency locking retractor. It can realize intelligent control and reuse.

Key words: seatbelt;magnetorheological , fluid(MRF) limiter;chest constrain, magnetic saturation analysis, damping force equation

中图分类号:

赵晓昱, 王晓聪, 王岩松, 汪佳农. 磁流变限力安全带的设计原理[J]. 中国机械工程, 2016, 27(04): 503-507.

Zhao Xiaoyu, Wang Xiaocong, Wang Yansong, Wang Jianong. Design Principle of Magnetorheological Force Limited Seatbelt[J]. China Mechanical Engineering, 2016, 27(04): 503-507.

参考文献

[1]安文姿.车用负泊松比安全带织带乘员保护效能研究[D].大连:大连理工大学,2013.

[2]李娅楠,毛秀娟,周细应.汽车安全带系统的新近进展 [J].汽车零部件,2012(10):80-83.

Li Yanan,Mao Xiujuan,Zhou Xiying.The Recent Progress of Car Seat Belt System[J].Automobile Parts,2012(10):80-83.

[3]Lee Dugyoung.Analysis of Electro-and Magneto-Rheological Flow Mode Dampers Using Herschel-Bulkleymodel[J].Smart Structures and Materials,2000,3989:244-255.

[4]赵晓昱,邢彦锋,华健,等.复合敏感紧急锁止式汽车安全带锁止性能的研究[J].汽车技术,2010(11):41-44.

Zhao Xiaoyu,Xing Yanfeng,Hua Jian,et al.The Study of the Emergency Locking Retractor for Vehicle Safety Belt Locking Performance[J].Automobile Technology,2010(11):41-44.

[5]欧进萍,关新春.磁流变耗能器及其性能[J].地震工程与工程振动,1998,18(3):74-81.

Ou Jinping,Guan Xinchun.Magnetorheological Fluid Dampers and Their Properties[J]. Earthquake Engineering and Engineering Vibration,1998,18(3):74-81.

[6]欧进萍.结构振动控制:主动/半主动和智能控制[M].北京:科学出版社,2003.

[7]Philips R W.Engineering Application of Fluids with Variable Yield Stress[D].Berkeley,Calif.:Dissertation of Cakifornia,1969.

[8]Makris N,Scott A B,Douglas P T.Electrorheological Damper with Annular Ducts for Seismic Protection Application[J].Smart Mater. Struct.,1996,5(5):551-564.

[9]徐海鹏,张红辉,余昭.单出杆磁流变阻尼器特性影响因素及其附加刚度研究[J].机械设计与研究,2011,27(6):37-39.

Xu Haipeng,Zhang Honghui,Yu Zhao.Research on the Influence Factors and Auxiliary Stiffness of Single-ended MR Damper[J].Machine Design and Research,2011,27（6）:37-39.

[10]Foret-Bruno J Y,Trosseille X,Le Coz J Y,et al.Thoracic Injury Risk in Frontal Car Crashwith Occupant Restrained with Belt Load Limiter[J].SAE Paper,983166.

[11]兵器工业无损检测人员技术资格鉴定考核委员会.常用钢材磁特性曲线速查手册[M].北京:机械工业出版社,2003.

[12]郑军.磁流变传动理论与实验研究[D].重庆:重庆大学,2008. [13]王大志.基于乘员保护的汽车正面碰撞结构设计与变形控制研究[D].北京:清华大学,2006.