Abstract: In?order?to?evaluate?the?riding?comfort?of?the?pavement?more?accurately,?the?weighted?root-mean-square?acceleration?of?the?passenger?is?selected?as?evaluation?index;?the?human-vehicle-road?system?is?simplified?into?a?three-degree-freedom?vibration?model?and?according?to?Newton＇s?law,the?vibration?differential?equations?are?established?and?solved?by?transfer?matrix?method.?As?a?result,?the?evaluation?method?for?pavement?roughness?based?on?human-vehicle-road?interaction?is?proposed.?The?analysis?results?show?that?the?evaluation?results?of?the?method?proposed?are?consistent?with?the?actual?conditions,?for?it?can?consider?the?impacts?of?pavement?types?and?highway?grades.?But?the?international?roughness?index,?the?power?spectral?density?and?the?standard?deviation?of?roughness?can＇t?describe?the?driving?comfort?well?under?partial?conditions.

Key words: pavement engineering , roughness , human-vehicle-road , evaluation method , weighted root-mean-square acceleration

摘要： 为了更准确地评价路面的行车舒适性,以乘客的竖向加权加速度均方根值作为平整度评价指标,将人-车- 路组成的系统简化成三自由度振动模型,依据牛顿法建立了振动微分方程,采用传递矩阵法对其进行了求解,进而 建立了考虑人-车-路相互作用的路面平整度评价方法。结果表明,该评价方法能考虑不同路面类型以及公路等 级的影响,对于不同等级路面的评价结果与实际情况一致,而国际平整度指数、功率谱密度和平整度标准差在部分 工况下不能很好地描述路面的舒适性。

关键词: 路面工程, 平整度, 人-车-路, 评价方法, 加权加速度均方根值