Simulation of Inflatable Deployment Characteristics of Folding Airbags for Underwater Unmanned Vehicle

被引：0
|
作者：
Sun P. [1 ]
Li B. [1 ]
Wen J. [2 ]
Zhang X. [1 ]
机构：
[1] School of Aeronautics, Northwestern Polytechnical University, Xi'an
[2] Institute of Systems Engineering, China Academy of Engineering Physics, Mianyang
来源：
Wen, Jinpeng (401wenjp@caep.cn) | 1600年 / China Ordnance Industry Corporation卷 / 41期
关键词：
Assisted floating; Finite element model; Folding airbag; Folding modeling; Inflatable deployment; Initial matrix method; Underwater unmanned vehicle;
D O I：
10.3969/j.issn.1000-1093.2020.12.020
中图分类号：
学科分类号：
摘要：
In order to further understand the inflation and deployment behavior of buoyancy assisted foldable airbag for underwater unmanned vehicle (UUV), the inflation and deployment characteristics of UUV annular foldable airbag are studied. The finite element model of annular folding airbag is established based on the initial matrix method. Based on the control volume method, finite element analysis software LS-DYNA is used to simulate the deployment of folding airbag. The validity of the method is verified by comparing with the ground experiment.Considering the different external pressure effects caused by different water depths, the influences of design parameters, such as inflation pressure, inflation pipe diameter, water depth and environmental heat exchange, on the deployment process of underwater foldable airbag are calculated and analyzed.The results show that the limit working depth increases linearly with the increase in inflation pressure, and the inflation time decreases with the increase in inflation diameter. The heat transfer between the environment and the deployment system mainly occurs between the airbag and the environment.After the airbag and the gas cylinder are inflated and balanced, the time of complete deployment of airbag decreases with the increase in the heat transfer coefficient. © 2020, Editorial Board of Acta Armamentarii. All right reserved.
引用
收藏
页码：2540 / 2549
页数：9
相关论文
共 19 条
  • [1] LU R X., Study of floating device of the training torpedo, Torpedo Technology, 8, 2, pp. 8-11, (2000)
  • [2] CHENG W X, CAI W J, YANG C W, Et al., Modeling and simulation of inflation process for torpedo inflatable collar, Torpedo Technology, 22, 2, pp. 87-90, (2014)
  • [3] YE H J, WANG X Y, ZHANG N., Simulation on underwater inflation process of annual bladder, Torpedo Technology, 23, 3, pp. 166-171, (2015)
  • [4] SALAMA M, KUO C P, LOU M., Simulation of deployment dyna-mics of inflatable structures, AIAA Journal, 38, 12, pp. 2277-2283, (2000)
  • [5] WANG J T, JOHNSON A R., Deployment simulation of ultra-lightweight inflatable structures, Proceedings of AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics and Materials Conference, (2002)
  • [6] LIENARD S, LEFEVER Y., Modeling and analysis of the deployment of a rolled inflatable beam using MSC-DYTRAN, Proceedings of the 46th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics & Materials Conference, (2005)
  • [7] WAN X M., The virtual research on airbag protection efficiency in vehicle frontal crash, (2006)
  • [8] MA C S, YUE H, HUANG S L, Et al., A study on airbag folding patterns for improving occupant protection effectiveness, Automotive Engineering, 27, 3, pp. 350-353, (2005)
  • [9] WEI J Z, DU X W, TAN H F, Et al., Simulation and experiment of deployment process of inflatable Z-folded tubes, Mechanics in Engineering, 31, 3, pp. 16-22, (2009)
  • [10] CHENG H., Research on folded flexible fabric modeling technology and numerical simulation of deployment process, (2013)
12