基于加速度干扰的路面平整度评价与行车舒适性研究

公路路面平整度与行车舒适性密切相关。在分析路面平整度评价指标的基础上,提出了用垂直方向振动加速度干扰来评价公路路面的行车舒适性。结合路面的正弦波理论,建立垂直方向的振动加速度干扰模型,最后,通过实例仿真,将模型应用于行车舒适性评价,并分析路面振幅、波长与速度对加速度干扰及行车舒适性的影响。新模型的建立既能为行车舒适性提供准确的评价指标,达到定量分析的目的,又能在道路路面设计阶段提供一定的参数设计依据。

A Study on Evaluation of Pavement Roughness and Riding Comfort Based on Acceleration Noise Model

The highway pavement roughness is closely related to the riding comfort. Vibration acceleration noise of vertical direction is used to evaluate the riding comfort of highway pavement, based on the analysis of the evaluation index of pavement roughness. According to the sine wave theory of pavement, the vibration acceleration noise model of vertical direction is set up. Finally, the model is applied to the evaluation of riding comfort by case simulation. The influence ofSpavement amplitude, wavelength and speed on acceleration noise and riding comfort is analysed. The establishment of the new model not only can provide an accurate evaluation index for riding comfort, but also can provide a basis for the design of pavement.