防浪板对排水型两栖车辆水动力学的影响研究

发布时间：2018-07-07 18:21

本文选题：兵器科学与技术 + 排水型　；参考：《兵工学报》2016年09期

【摘要】：防浪板是影响两栖车辆整车水上性能重要部件之一,为了研究防浪板对排水型两栖车辆水动力学的影响,建立了排水型两栖车辆流体力学计算模型。针对防浪板的形状、大小以及与车体的相对位置变化进行整车航行动力学仿真,综合分析了防浪板对整车航行阻力、升力以及纵向俯仰力矩的影响,并与试验数据进行了对比。研究结果表明:在形状方面,分段平板式防浪板具有弧形与平板式各自优点,是较佳的工程结构;在宽度上,随着宽度增加,阻力和升力变化不大,纵向恢复力矩增加较多,超过一定宽度后阻力急剧增加;在与车体相对距离方面,随着距离的增加,航行阻力增加,升力下降,纵向恢复力矩增幅较大;在防浪板与车体底平面夹角上,随着角度的增加,整车阻力和升力变化不大,但纵向恢复力矩增加显著。
[Abstract]:The anti-wave plate is one of the important components that affect the water performance of the amphibious vehicle. In order to study the effect of the anti-wave plate on the hydrodynamics of the draining amphibious vehicle, the hydrodynamic calculation model of the draining amphibious vehicle is established. Aiming at the shape, size and relative position of the anti-wave plate, the vehicle navigation dynamics simulation is carried out. The influence of the anti-wave plate on the navigation resistance, lift force and longitudinal pitching moment of the whole vehicle is comprehensively analyzed, and compared with the test data. The results show that the segmented plate has the advantages of arc and plate and is a better engineering structure in shape, and in width, the resistance and lift change little with the increase of width, and the longitudinal recovery torque increases more. The relative distance to the car body increases with the increase of distance, the lift decreases, and the longitudinal recovery torque increases greatly; on the plane angle between the anti-wave plate and the bottom of the car body, the drag increases sharply after a certain width, and the relative distance increases with the increase of the distance. With the increase of angle, the resistance and lift of the whole vehicle do not change much, but the longitudinal recovery torque increases significantly.
【作者单位】：中国北方车辆研究所;
【基金】：国家国防科技工业局国防基础科研计划重大项目(A0920131001)
【分类号】：U469.693

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