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为了解决车辆路面纵剪力对路面损伤的评价、车辆纵振平顺性的描述等难题 ,提出了车辆纵振路面谱这一概念。路面不平造成了车辆垂向和纵向的振动 ,使它与垂向路面谱共同产生。定义了车辆纵振路面谱的数学表达方法 ,设计了用五轮仪测量纵振路面谱的试验 ,对青 -黄高速公路某段进行了实测。经数据回归分析 ,该路段垂向路面谱对应的路面级别为C级偏优 ,纵振路面谱为B级偏优。
In order to solve the problems such as the evaluation of pavement damage caused by vehicle pavement slips and the description of vehicle longitudinal vibration ride comfort, the concept of vehicle longitudinal vibration pavement spectrum is proposed. Uneven road surface caused by vertical and vertical vehicle vibration, so that it together with the vertical road surface spectrum. The mathematical expression of vehicle longitudinal vibration spectrum is defined. The experiment of measuring the longitudinal vibration spectrum of the road surface with a five-wheel measuring instrument is designed and a section of Qing-Huang Expressway is measured. The data regression analysis shows that the pavement level corresponding to the vertical pavement spectrum of this section is C-level preference and the longitudinal vibration spectrum is B-level preference.