纵倾角对轻型轮式两栖车辆的阻力特性影响研究  

Analysis of the Effect of Trim Angle on the Resistance Characteristics for Wheeled Amphibious Vehicle

作　　者：剧冬梅[1,2] 项昌乐[1] 周鹏飞[1] 肖南溪 刘静[2] 

机构地区：[1]北京理工大学机械与车辆学院,北京100081 [2]中国兵器科学研究院,北京100089

出　　处：《兵工学报》2015年第1期19-26,共8页Acta Armamentarii

基　　金：总装备部预先研究项目(51314010302)

摘　　要：提高两栖车辆航速的有效途径之一是减小整车阻力,为了研究纵倾角对阻力特性的影响,采用数值计算的方法研究了轻型轮式高速两栖车辆水上航行的阻力特性,数值计算结果和试验取得了较好的一致。研究结果表明:当车体纵倾角较小时,随着航速的增加,阻力逐渐增大;当车体纵倾角较大时,随着航速的增加,阻力先增大后趋于稳定;当航速较小时,纵倾角对阻力影响较小;当航速较大时,随着纵倾角的增大,阻力先减小后增大;随着航速的增加,车体纵倾角的适航范围变小,但对阻力的影响幅度变大。One of the effective ways to increase the speed of amphibious vehicle is to reduce the overall resistance. In order to research the influence of trim angle on the resistance characteristics, a numerical calculation method is used to research the resistance characteristics of high speed wheeled amphibious ve- hicle. The numerical results are in good agreement with the experimental results. The research results show that the resistance increases with the increase in speed when the vehicle trim angle is small; it in- creases first and then tends to be stable with the increase in speed when the vehicle trim angle is bigger. When the speed is low, the trim angle has a small influence on longitudinal resistance; when the speed is higher, the resistance decreases first and then increases with the increase in trim angle. As speed increa- ses, the vehicle trim angle becomes smaller, but the resistance increases.

关 键 词：兵器科学与技术 高速两栖车辆 阻力特性 数值计算 

分 类 号：TJ811.6[兵器科学与技术—武器系统与运用工程]