Design and Optimization of Occupant Lower Limb Protection Device against Explosion Shock below Military Vehicle

doi:10.3969/j.issn.1000-1093.2021.12.003

Abstract

Abstract: For severe damage to the lower limbs of vehicle occupant caused by the explosion shock below vehicle，a vehicle occupant lower limb protection device was designed by combining the flexible floor and the explosion-proof foot pad. The protective performance of the lower limb protection device and the influence of design parameters on the protective performance are studied based on vehicle explosive simulation，and a preferable design is determined. Static stiffness analysis of the preferable design is made to determine if it can provide sufficient support in daily use. Multi-objective optimization is performed for the structure of lower limb protection device to obtain the optimal design. The vehicle explosion simulation and test were carried out to verify this design. The results show that the occupant lower limb protection device can effectively reduce the impact to the lower limbs and significantly improve the protection ability of the lower limbs.

Key words: militaryvehicle, underbobyexplosion, vehicleoccupant, lowerlimbprotectiondevice, numericalsimulation, multi-objectiveoptimization

CLC Number:

TJ810.2

SUN Xiaowang， ZHANG Jincheng， PENG Bing， ZHANG Jinkun， WANG Xianhui. Design and Optimization of Occupant Lower Limb Protection Device against Explosion Shock below Military Vehicle[J]. Acta Armamentarii, 2021, 42(12): 2555-2564.

References ［1］

［1］

石秉良，王显会，张云，等.军用车辆底部防护研究与发展综述[J].兵工学报，2016，37(10):1902-1914.SHI B L，WANG X H，ZHANG Y，et al.An overview of development and research on bottom protection capability of military vehicle[J].Acta Armamentarii，2016，37(10):1902-1914.(in Chinese)[2］ GRUJICIC M，ARAKERE G，NALLAGATLA H，et al.Computational investigation of blast survivability and off-road performance of an up-armoured high-mobility multi-purpose wheeled vehicle[J].Proceedings of the Institution of Mechanical Engineers，Part D:Journal of Automobile Engineering，2009，223(3):301-325.[3］ HENDERSON K A，BAILEY A M，CHRISTOPHER J J，et al.Biomechanical response of the lower leg under high rate loading[C]∥Proceedings of IRCOBI (International Research Council on the Biomechanics of Injury) Conference.Gothenburg， Sweden: International Research Council on Biomechanics of Injury，2013:13-24.[4］ RAMASAMY A，MASOUROS S D，NEWELL N，et al.In-vehicle extremity injuries from improvised explosive devices: current and future foci[J].Philosophical Transactions of the Royal Society B:Biological Sciences，2011，366(1562):160-170.[5］ RAMASAMY A，HILL A M，MASOUROS S，et al.Blast-related fracture patterns:a forensic biomechanical approach[J].Journal of the Royal Society Interface，2011，8(58):689-698.[6］ WEI R，WANG X H，ZHANG M，et al.Application of dimension reduction based multi-parameter optimization for the design of blast-resistant vehicle[J].Structural and Multidisciplinary Optimization，2017，56(4): 903-917.[7］李明星，王显会，周云波，等.基于神经网络的车辆抗冲击防护组件优化[J].爆炸与冲击，2020，40(2):107-115.LI M X，WANG X H，ZHOU Y B，et al.Research on optimization of vehicle anti-shock protection components based on neural network[J].Explosion and Shock Waves，2020，40(2):107-115.(in Chinese)[8］王显会，师晨光，周云波，等.车辆底部防护蜂窝夹层结构抗冲击性能分析[J].北京理工大学学报，2016，36(11):1122-1126.WANG X H，SHI C G，ZHOU Y B，et al. Impact resistance analysis of honeycomb sandwich structure for the vehicle bottom protection[J].Transactions of Beijing Institute of Technology，2016，36(11): 1122-1126. (in Chinese)[9］魏然，王显会，周云波，等.帕累托最优在车辆底部防护结构设计中的应用研究[J].兵工学报，2015，36(6):1061-1066.WEI R，WANG X H，ZHOU Y B，et al.Application of Pareto optimality in protective structure design of vehicle underbody[J].Acta Armamentarii，2015，36(6):1061-1066. (in Chinese)[10］ LANGDON G S，CURRY A，SIDDIQUI A. Improving the impulse transfer and response characteristics of explosion loaded compound angle V-plates[J].Thin-Walled Structures，2020，148：106609.[11］ AREPALLY S，GORSICH D，HOPE K，et al. Application of mathematical modeling in potentially survivable blast threats in military vehicles[R].Warren，MI，US: the U.S.Army Tank Automotive Research，Development and Engineering Center，2008.[12］ KULKARNI K B，RAMALINGAM J，THYAGARAJAN R. Evaluating the effectiveness of various blast loading descriptors as occupant injury predictors for underbody blast events[R].Warren，MI，US:the U.S. Army Tank Automotive Research，Development and Engineering Center，2013.[13］俞彤，王显会，周云波，等.爆炸环境下车辆地板加速度对乘员小腿损伤的影响[J].科学技术与工程，2018，18(21): 339-344. YU T，WANG X H，ZHOU Y B， et al. The effects of vehicle floor acceleration on the damage of occupant's tibia in explosive environment[J].Science Technology and Engineering，2018，18(21): 339-344. (in Chinese)[14］ Protection levels for occupants of armoured vehicles: NATO-STANDAG 4569[S].Brussels，Belgium: NATO Standardization Agency，2012.[15］ DOBRATZ B M. Properties of chemical explosives and explosive simulants[R].Livermore，CA，US: Lawrence Livermore Laboratory，1981.[16］ HALLQUIST J O.LS-DYNA keyword user's manual·Volumn Ⅱ: material models [M].Livermore，CA，US:Livermore Software Technology Corporation，2018.[17］ JOHNSON G R，COOK W H.A constitutive model and data for metals subjected to large strains，high strain rates and high temperatures[C]∥Proceedings of the 7th International Symposium on Ballistics. Hague，the Netherland: International Ballistics Society，1983:541-547.[18］ JOHNSON G R，COOK W H.Fracture characteristics of three metals subjected to various strains，strain rates，temperatures and pressures[J].Engineering Fracture Mechanics，1985，21(1):31-48. [19］赖宇阳.Isight参数优化理论与实例详解[M].北京:北京航空航天大学出版社，2012.LAI Y Y. Isight parameter optimization theory and detailed examples[M].Beijing:Beihang University Press，2012.(in Chinese)[20］ DEB K，AGRAWAL S，PRATAP A，et al.A fast elitist non-dominated sorting genetic algorithm for multi-objective optimization: NSGA-II[C]∥Proceedings of International Conference on Parallel Problem Solving from Nature. Berlin，Germany:Springer，2000.[21］李莉.基于遗传算法的多目标寻优策略的应用研究[D].无锡：江南大学，2008.LI L.Application research on multi-objectives optimization based on the genetic algorithm[D].Wuxi:Jiangnan University，2008. (in Chinese)[22］周涛，罗仁蔚.基于NSGA-Ⅱ快递智能仓库多目标优化问题研究[J].现代机械，2018（3）:100-104.ZHOU T，LUO R W. The multi-objective optimization research of express intelligent warehouse based on NSGA-II[J]. Modern Machinery，2018（3）:100-104. (in Chinese)

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