滑板土壤间充气层的理论计算及其试验验证

采用气幕法可以有效地减少滑板在湿软土壤上的滑行阻力,其减阻效果取决于滑板土壤间充气层的压力、厚度和宽度等状态参数。文中提出了一种数学模型,从理论上预测了充气层的诸状态参数,并对理论预测结果进行了试验验证。理论计算和试验测量结果均表明:离充气孔越远,充气层厚度越薄;而随着流量的增加,充气层厚度和压力也增加。

The Theoretical Calculation and Its Experimental Verification of Airflow Layer Between Sliding Plate and Soil

It is efficient to decrease the resistance of sliding plate on moist and soft soil by airing method,and the rate of resistance decrease is dependent on the pressure, thickness and width of airflow layer between the sliding plate and the soil. A mathematical model is put forword which can be used to predict these parameters of the airflow layer,and it is verified by experiment. The results of both calculation and experiment show, that the farther from the air injecting hole, the thinner the airflow layer is. Also, the thickness and the pressure of the airflow layer increase with the increase of the discharge.