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兵工学报 ›› 2012, Vol. 33 ›› Issue (2): 129-133.doi: 10.3969/j.issn.1000-1093.2012.02.001

• 论文 •    下一篇

装甲车辆进排气格栅的气动特性试验研究与防护性能分析

李云龙1,2, 赵长禄1, 张付军1, 李欣2, 王湘卿2   

  1. (1.北京理工大学 机械与车辆学院国防动力系统重点实验室, 北京 100081;2.中国北方车辆研究所, 北京 100072)
  • 收稿日期:2010-03-16 修回日期:2010-03-16 上线日期:2014-03-04
  • 作者简介:李云龙(1979—), 男, 博士研究生
  • 基金资助:
    国家自然科学基金项目(51179157、51179158、50905165); 浙江省特种装备制造与先进加工技术重点实验室开发基金项目(2011EM010)

Aerodynamic Characteristics Experimental Study and Protective Performance Analysis for Intake and VentGrilles of Armored Vehicles

LI Yun-long1,2, ZHAO Chang-lu1, ZHANG Fu-jun1, LI Xin2, WANG Xiang-qing2   

  1. (1.School of Mechanical and Vehicular Engineering, Beijing Institute of Technology, Beijing 100081, China;2.China North Vehicle Research, Beijing 100072,China)
  • Received:2010-03-16 Revised:2010-03-16 Online:2014-03-04

摘要: 以几种典型结构的装甲车辆进排气格栅为研究对象,进行格栅气动性能试验研究,得出其气动特性试验关联式;对比分析了我国与美军装甲车辆进排气格栅的气动性能与防护性能,结果表明:美军车辆进排气格栅的防护性能较好,但气动性能较差。以最小的节流阻力,通过足够量的冷却空气,并获得最大的防护能力为格栅设计的宗旨,本文提出了开度系数作为评价格栅防护性能的无量纲参数,分析表明,在格栅材质和叶片厚度一定的条件下,开度系数值越小表示格栅的防护能力越强。

关键词: 流体力学, 格栅, 试验研究, 开度系数, 防护性能

Abstract: To study the experimental correlativity of aerodynamic characteristics of intake and vent grilles in armored vehicles, the aerodynamic performance experiments of grille were carried out based on some typical structures. The aerodynamic and protective performances of air intake and vent grilles in China and U.S. military armored vehicles were comparatively analyzed. The results show that the protective performance of intake and vent grilles in U.S. military armored vehicles is better, but their aerodynamic performance is lower. The aim of grille design is to get the maximum protective capability with minimum throttling pressure loss and enough cooling air mass flux. The grille opening coefficient as a dimensionless parameter was proposed to evaluate the grille leaf structure. It is shown from analysis that the smaller opening coefficient means the stronger protective capability on the basis of certain grille material and leaf thickness.

Key words: fluid mechanics, grille, testing study, opening coefficient, protective performance

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