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重型车辆通过不平整路面所引起的附加荷载的研究是活载作用下道路动力性能研究的内容之一。本报告讲述了适用于 I·C·T“ATLAS”电子计算机的程序,该程序用于车辆通过独立的不平整路面或已知实际纵断面的道路的动载研究。试验车辆通过下列假设进行模拟:1.车辆钢板弹簧和轮胎具有线性的荷载与变形关系。2.车辆悬挂减震器可以看成是库伦干摩阻及粘滞摩阻的组合。3.轮胎的阻尼作用可以忽略。4.车辆绕纵向水平轴的侧倾运动可忽略不计。
Research on the additional load caused by heavy vehicles passing uneven road surface is one of the contents of the study on road dynamic performance under live load. This report describes a program for an ICT “ATLAS” computer that is used for dynamic study of a vehicle passing a stand-alone uneven road or a road of known actual longitudinal section. The test vehicle is simulated with the following assumptions: 1. The vehicle leaf spring and tire have a linear load-deformation relationship. 2. Vehicle suspension shock absorber can be seen as a combination of coulomb friction and viscous friction. 3. Tire damping can be ignored. 4. The rolling motion of the vehicle about the longitudinal horizontal axis is negligible.