As side armor of military vehicles is weak and its design space is small, the side explosion protection performance of military vehicles faces bigger and bigger challenges.Here, a scientific and efficient study method for military vehicle side structure design was proposed.Taking a certain type of military vehicle as the study object, Latin hypercube test design, Kriging approximation model, and sequence optimization and reliability evaluation method were comprehensively applied to do reliability optimization design.Responses of the whole vehicle and passengers under impact of side blast were analyzed to find unreasonable places in design.The side structure was equipped with explosion-proof beam and energy-absorbing components, and restraint system was improved to improve the side blast protection performance of the original vehicle.Key factors of side wall and restraint system were chosen as design variables, the total mass of explosion-proof beam was taken as the design objective and occupant damage was taken as the constraint condition.The reliability optimization algorithm was used to do numerical optimization, and obtain the optimal design parameters.The optimized model was used to do simulation calculation again so as to verify the optimization scheme satisfying design requirements.It was shown that the study results can provide a design idea for vehicle side explosion protection and light-weight design.
Key words
side explosion protection /
light-weight /
Latin hypercube test design /
Kriging approximation model /
reliability optimization design
{{custom_keyword}} /
{{custom_sec.title}}
{{custom_sec.title}}
{{custom_sec.content}}
References
［1］彭兵.侧面爆炸环境下车身结构优化设计研究［D］.南京:南京理工大学, 2017.
［2］ADEGBIE K S, ALAO F I.Studies on the effects of interphase heat exchange during thermal explosion in a combustible dusty gas with general arrhenius reaction-rate laws［J］.Journal of Applied Mathematics, 2012(1):1-7.
［3］DONG Y P, LU Z H.Analysis and evaluation of an anti-shock seat with a multi-stage non-linear suspension for a tactical vehicle under a blast load［J］.Proceeding of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering, 2012,226(8):1037-1047.
［4］邹建胜.民机坠撞环境下乘员座椅/约束系统仿真分析及优化［D］.南京:南京航空航天大学, 2012.
［5］梅声远.汽车乘员约束系统稳健性设计理论与方法研究［D］.长沙:湖南大学, 2013.
［6］姚长海.乘用车侧面碰撞可靠性优化设计研究［D］.长沙:湖南大学, 2016
［7］LIU Yucheng.Crashworthiness design of thin-walled curved beams with box and channel cross sections［J］.International Journal of Crashworthiness, 2010, 15(4):413-423.
［8］LONG S Y.Takashi Deguchi design sensitivity study of passenger airbag shape to meet head restraint performance for different occupant size in frontal impact［C］//23rd International Technical Conference on the Enhanced Safety of Vehicles.Seoul: ESV,2013.
［9］王登峰, 卢放.基于多学科优化设计方法的白车身轻量化［J］.吉林大学学报(工学版), 2015, 45(1):29-37.
WANG Dengfeng, LU Fang.Body-in-white lightweight based on multidisciplinary design optimization［J］.Journal of Jilin University(Engineering and Technology Edition), 2015, 45(1):29-37.
［10］NATO. Procedures for evaluating the protection level of logistic and light armored vehicles［M］.
Brussels: NATO Standardization Organization, 2006.
［11］PANOWICZ R, SYBILSKI K, KOODZIEJCZYK D.Numerical analysis of effects of IED side explosion on crew of lightarmoured wheeled vehicle［J］.Journal of KONES, 2011, 18(4): 331-339.
［12］WANG C Y, ZOU S C, ZHAO W Z, et al.Multi-objective explosion-proof performance optimization of a novel vehicle door with negative Poisson’s ratio structure［J］.Structural and Multidisciplinary Optimization, 2018, 58(4): 1805-1822.
［13］姜乐.某车侧面碰撞安全性能研究［D］.锦州: 辽宁工业大学, 2018.
［14］SOBOL I M.Global sensitivity indices for nonlinear mathematical models and their Monte Carlo estimates
［J］.Mathematics and Computers in Simulation, 2001, 55(1/2/3): 271-280.
{{custom_fnGroup.title_en}}
Footnotes
{{custom_fn.content}}
PDF(2972 KB)
