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为了对现有减速带的减速效果进行评价,采用实车试验的手段获取实际行车参数,研究在不同类型减速带作用条件下,车辆的振动、噪音警示效果,得到了振动加速度均方根值、噪音增量值与运行速度之间的关系。试验结果表明:运行速度与振动加速度均方根值、噪音增量值均呈线性关系;减速带的高度是影响振动警示作用的关键因素;A类减速带适用于低速路段,B类减速带适用于高速路段。
In order to evaluate the decelerating effect of the existing speed reducing belts, the actual driving parameters were obtained by the real vehicle test, the vibration and noise warning effects of the vehicle under different types of deceleration belts were studied, and the root mean square of vibration acceleration was obtained. The relationship between noise increment and speed. The experimental results show that the running speed is linear with the rms value of vibration acceleration and the increment of noise. The height of deceleration zone is the key factor that affects the warning of vibration. The deceleration zone of type A is suitable for low speed section and the deceleration zone of type B In the high-speed sections.