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车辆载荷引起的振动问题 ,不仅带来了由高振动引起的环境问题 ,同时也是岩盐公路破坏的主要因素。采用单自由度车辆模型模拟在不平整路面上行驶车辆的轮载力 ,将其作为岩盐公路路基所受到的荷载 ,运用通用有限元分析软件 ANSYS对岩盐公路路基进行瞬态动力学分析 ,并用该模型对盐湖公路 K5 89左右一段进行了实例计算 ,将计算结果与实测结果进行了对比 ,以验证该数值分析方法的有效性。
The vibration problem caused by the vehicle load not only brings about the environmental problems caused by the high vibration, but also is the main factor of rock salt highway damage. The single-degree-freedom vehicle model was used to simulate the vehicle’s wheel-load force on uneven road surface. The load of rocky-salt highway subgrade was used as load. By using the finite element analysis software ANSYS, transient dynamic analysis of rock salt highway subgrade was carried out. The model is used to calculate an example about the section of Salt Lake Highway K5 89, and the calculated results are compared with the measured results to verify the validity of the numerical method.