摘要针对实装空投试验存在耗费巨大、实施复杂等问题,采用有限元方法(finite element method,FEM)建立战车载人空投有限元仿真模型,分析其着陆缓冲适应性。通过实装空投试验对有限元模型进行校验,证明模型是可行的。对典型空投条件下的战车载人空投着陆缓冲过程进行计算,分析乘员在着陆冲击下的动力学特性和安全性。仿真结果表明:气囊缓冲系统可实现战车载人空投在着陆场海拔3000m以下地区、垂直着陆速度小于9m/s、纵向水平着陆速度小于8m/s、横向水平着陆速度小于6m/s情况下的有效缓冲,乘员头部、胸部和颈部各项伤害指标值均小于人体耐受限值,载人空投是安全的。
Abstract:Since it was very costly and complicated to implement airdrop test using real equipment, finite element method(FEM) was taken to build the simulation model of manned armored vehicle airdrop to analyze its landing buffering adaptability. The finite element model was verified by real equipment airdrop test, and the model was proved to be feasible. Through simulating calculation of the soft-landing buffering process of manned armored vehicle airdrop under typical airdrop conditions, an analysis was conducted towards the dynamic characteristics and safety of the crew under the impact of landing.The simulation results show that the airbag buffer system can help manned armored vehicle airdrop realize effective buffer under the circumstances of the landing ground at an altitude of 3000m below sea level, vertical landing velocity less than 9m/s, longitudinal horizontal landing speed less than 8m/s, horizontal speed less than 6m/s. The damage parameters of crew’s head, chest and neck are less than the tolerance limits of human body. Manned armored vehicle airdrop is safe.
付新华1,汪君1,陈勇2,陈雪阳1. 战车载人空投着陆缓冲过程仿真模型研究[J]. 振动与冲击, 2021, 40(24): 57-64.
FU Xinhua1,WANG Jun1,CHEN Yong2,CHEN Xueyang1. A study on soft-landing buffering process of manned armored vehicle airdrop. JOURNAL OF VIBRATION AND SHOCK, 2021, 40(24): 57-64.
[1] 王亚伟,杨春信,柯鹏. 货台空投系统气囊缓冲过程仿真[J]. 系统仿真学报,2007(14):3176-3179.
Wang Ya-wei, Yang Chun-xin, Ke Peng. Airbag Cushion Process Simulation for Cargo Airdrop System[J]. Journal of System Simulation, 2007(14):3176-3179.
[2] 衣敬强,郝贵祥,王红岩,等.高原条件下空投设备气囊系统缓冲过程研究[J]. 中国工程机械学报,2012(03):116-120.
Yi Jing-qiang, Hao Gui-xiang, Wang Hong-yan, et al. Cushioning precoss study on airbag system of on-plateau-airdropped equipments[J]. Chinese Journal of Construction Machinery, 2012(03):116-120.
[3] 孙晓伟.自落式缓冲气囊设计计算的一般方法[J].中航救生,2005(4):29-31.
Sun Xiao-wei. Method of self-charged cushion airbag design and computing[J]. China Aeronantical & Astronautical Life-support, 2005(4):29-31.
[4] 柯鹏,杨春信,孙晓伟,等.载人空投系统空投过程的运动特性分析[C].中国航空学会2009年环控暨人机工效学术交流会,2009.08, 417-421.
Ke Peng, Yang Chun-xin, Sun Xiao-wei, et al. Analysis of motion characteristics of manned airdrop system during airdrop process [C]. China Aeronautics Association 2009 environmental control and ergonomics Symposium, 2009.08, 417-421.
[5] 谭军,韩旭,刘鑫.载人防护缓冲气囊座椅的优化设计[J].振动与冲击,2011, 30(2): 222-225.
TAN Jun, HAN Xu, LIU Xin. Optimal design of airbag chair for manned airdrop protection [J]. Journal of vibration and shock, 2011, 30(2): 222-225.
[6] 刘鑫,张志勇.基于气囊缓冲的载人空降乘员防护装置优化设计[J]. 机械工程学报, 2012, 48(021):168-174.
Liu Xin, Zhang Zhi-yong. Optimal Design of Passenger's Protection Devices in Manned Airdrop Based on Airbag Cushion[J]. Journal of Mechanical Engineering, 2012, 48(021): 168-174.
[7] 李建阳,王红岩,芮强,等.空降车着陆冲击累积损伤评估方法研究[J].系统仿真学报,2014.1, 26(1):208-214.
LI Jian-yang, WANG Hong-yan, RUI Qiang , et al. Research on Cumulative Damage Assessment Method for Airborne Vehicle at Landing Based on Finite Element Analysis [J]. Journal of System Simulation, 2014.1, 26(1):208-214.
[8] 李云飞,曾祥国,廖异.基于修正Johnson-Cook模型的钦合金热钻塑性动态本构关系及有限元模拟[J].中国有色金属学报,2017.7, 27(7):1419-1425.
LI Yun-fei, ZENG Xiang-guo, LIAO Yi. Thermal-viscoplastic constitutive relation of Ti-6A1-4V alloy and numerical simulation by modified Johnson-Cook modal [J]. The Chinese Journal of Nonferrous Metals, 2017.7, 27(7):1419-1425.
[9] 洪煌杰,王红岩,李建阳,等.基于代理模型的空投装备气囊缓冲系统多目标优化[J].振动和冲击,2015, 34(3):215-220.
HONG Huang-jie, WANG Hong-yan, LI Jian-yang,et al. Multi-objective optimization of an airbag cushion system for airdropping equipment based on surrogate model [J]. JOURNAL OF VIBRATION AND SHOCK, 2015, 34(3):215-220.
[10] 高兴龙. 物伞流固耦合及多体系统动力学研究[D].国防科学技术大学博士论文,2016.
Gao Xinglong. Research on multibody dynamics and fluid-structure interaction of parachute-bodysystem [D]. Graduate School of National University of Defense Technology, 2016.