滑水临界车速分析及可能采取的解决措施  

AN ANALYSIS ON THE CRITICAL SPEED MARKING THE OCCURANCE OF HYDROPLANING FOR WHEELED VEHICLES

作　　者：孔江生[1] 吕海涛[1] 朱天军[1] 

机构地区：[1]华北水利水电学院机电工程系,河北邯郸056021

出　　处：《兵工学报》2004年第3期315-317,共3页Acta Armamentarii

摘　　要：轮式车辆或起降的飞机在积水的跑道上行驶或滑行时 ,会因滑水而导致失去行驶方向 ,其危害是相当严重的。经过大量的实验分析 ,并在实验的基础上得出了滑水时的车速u =6 .34pkm/h ,p为轮胎的充气气压 (kPa) .本文以实验公式为依据 ,从水流的流速、动量方程、接地区斜楔内动压大小等因素出发 ,推导出了临界平衡条件即滑水时的临界车速。并得出了车轮轮胎抗压能力最薄弱处变形斜楔内动压的关系以及水深、胎压、胎宽及车速间的相互作用关系 。When a vehicle is running along a wet runway, the phenomenon of hydroplaning might happen,and when this occurs, the vehicle will lose its orientation in direction, leading to disasters. Upon this much experimental work has been done and empirical expressions for the critical speed marking the occurance of hydroplaning, such as the one given by horne: u=6.34p(u: km/h, p: tire pressure kPa). The phenomenon was analyzed based on experimental results and a new expression for the critical speed was developed. The expression is based on factors such as water flow, the momentum equation, and the pressure of tire uplifting the vehicle, finding out the weakness area of the tire, giving the relationship among water depth, tire pressure, tire width and the vehicle speed. The new expression submits a new way for the elimination of hydroplaning.

关 键 词：滑水 临界车速 轮胎压力 充气气压 水流 

分 类 号：U461.51[机械工程—车辆工程]