抗荷服充气过程的瞬态流固解耦数值模拟
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- 英文论文题名：A Transient and Decoupling Numerical Simulation Model of Anti-g Suit'Inflation Process
- 论文作者：张海波 ; 周昊 ; 田少平 ; 张巍 ; 彭华 ; 邹磊
- 英文论文作者：Zhang Haibo ; Zhou hao ; Tian Shaoping ; Zhang Wei ; Peng Hua ; Zou Lei ; AVIC Aerospace Life-Support Industries LTD.
- 年：2016
- 作者机构：航宇救生装备有限公司;
- 论文关键词：抗荷服 ; 抗荷调压器 ; 流体场 ; 结构场 ; 数值模拟
- 英文论文关键词：anti-g suit ; anti-g regulator ; fluid field ; structure field ; numerical simulation
- 会议召开时间：2016-10-31
- 会议录名称：探索 创新 交流（第7集）——第七届中国航空学会青年科技论坛文集（上册）
- 英文会议录名称：Discovery,Innovation and Communication——Proceedings of 7th CSAA Science and Technology Youth Forum
- 语种：中文
- 分类号：V244.3
- 学会代码：ZGHU
- 会议名称：探索 创新 交流（第7集）——第七届中国航空学会青年科技论坛
- 会议地点：中国广东中山
- 主办单位：中国航空学会
- 学会名称：中国航空学会
- 页数：9
- 文件大小：2499k
- 原文格式：O
- 会议级别：全国
摘要
"抗荷调压器—抗荷服"系统的动态特性是决定抗荷服抗荷效果的关键指标。本文采用流体场和结构场独立求解的解耦分析方法,利用专业流体分析软件Fluent和非线性结构分析软件Abaqus,建立了"人体—抗荷服—抗荷调压器"的仿真模型,对抗荷服充气过程进行了数值模拟,获得了抗荷囊内气体压力、气体质量、人体体表压力、抗荷囊体应力、衣面应力,以及抗荷服腹部和大腿部的周向膨胀率等体现抗荷服抗荷性能指标的重要仿真结果。数值模拟过程和仿真结果为提高抗荷服抗荷能力、舒适性和经济性提供了有利参考。
The dynamic nature of anti-g valve-suit system is the key indicator of anti-g effect.Fluid-structure decoupling method is adopted in this paper,and professional fluid analysis software Fluent and nonlinear analysis software Abaqus are used to establish the simulation model of human,anti-g suit and anti-g value and to do numerical simulation of the inflating process of the anti-g suit.Parameters such as pressures and gas masses in the anti-g-suit,pressures on human surface,stress of the anti-g suit and capsule are achieved.Expansion ration of the anti-g suit's belly and thigh in hoop direction are evaluated at the end of the inflatable.The numerical simulation process and results can provide beneficial reference for improving anti-g ability,comfort and economy of the anti-g-suit.
The dynamic nature of anti-g valve-suit system is the key indicator of anti-g effect.Fluid-structure decoupling method is adopted in this paper,and professional fluid analysis software Fluent and nonlinear analysis software Abaqus are used to establish the simulation model of human,anti-g suit and anti-g value and to do numerical simulation of the inflating process of the anti-g suit.Parameters such as pressures and gas masses in the anti-g-suit,pressures on human surface,stress of the anti-g suit and capsule are achieved.Expansion ration of the anti-g suit's belly and thigh in hoop direction are evaluated at the end of the inflatable.The numerical simulation process and results can provide beneficial reference for improving anti-g ability,comfort and economy of the anti-g-suit.
引文
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[9]张营营,张其林,周传志.PTFE膜材的单向拉伸性能[J].建筑材料学报,2010,13(4).
[10]Li Z,Kindig M.Kerrigan J W.Untaroiu C D,et al.Rib Fractures under Anterior-Posteriordynamic Loads;Experimental and Finite Element Study[J].Journal of Biomechanics,2010,43(2).
[2]耿喜臣,詹长录,颜桂定,等.一种新型囊式抗荷服的抗荷及实用性能[J].中华航空航天医学杂志,1999,10(2).
[3]耿喜臣,陈立君,颜桂定,等.新型抗荷系统抗荷性能的离心机评价[J].中华航空航天医学杂志,2005,16(4).
[4]Burns J W,Hill R C.Comparative Centrifuge Evaluation of the Air-Force Advanced Technology Anti-G Suit(ATAGS)and the Navy Enhanced Anti-G Lower Ensemble(WAGLE)[J].Safe,1994,24(1).
[5]郎需英,陈秀明.飞机抗荷系统仿真[J]航空精密制造技术,1994,30(6).
[6]蒋帆,杨春信.抗荷阀-抗荷服系统的动态响应模型[J].航空学报,2001,22(6).
[7]张来平,邓小刚,张涵信.动网格生成技术及非定常计算方法进展综述[J].力学进展,2010,40(4).
[8]修荣荣,徐明海,黄善波.网格单元形状对数值计算的影响[J].工程热物理学报,2004,25(2).
[9]张营营,张其林,周传志.PTFE膜材的单向拉伸性能[J].建筑材料学报,2010,13(4).
[10]Li Z,Kindig M.Kerrigan J W.Untaroiu C D,et al.Rib Fractures under Anterior-Posteriordynamic Loads;Experimental and Finite Element Study[J].Journal of Biomechanics,2010,43(2).