Pavement Surface Evaluation Interacting Vibration Characteristics of an Electric Mobility Scooter
Pavement Surface Evaluation Interacting Vibration Characteristics of an Electric Mobility Scooter
复制标题
电动滑板车路面相互作用振动特性评估
DOI：
10.1007/978-3-030-48679-2_83
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发表时间：
2020
期刊：
影响因子：
--
通讯作者：
Moriishi Kazushi
中科院分区：
文献类型：
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作者：
Tomiyama Kazuya;Moriishi Kazushi
电动代步车（EMS）是一种完全由电池驱动的个人小型车辆，正在成为一种越来越常见的助行器。为了确保EMS用户的可达性，人行道的路面状况是影响出行安全性和舒适性的重要因素之一。本研究探讨了评价人行道路面的要求，侧重于EMS的表面特性和振动响应之间的相互作用。因此，EMS由两个不同的共振频率8和30赫兹与megatexture和microtexture的表面性能，分别在3公里/小时的恒定速度。这一发现证明了EMS振动高度相关的平均剖面深度（MPD）诱导轴激励，但不是国际粗糙度指数（IRI）。根据路面-车辆相互作用的分析，本研究最后建议，测量的EMS加速度是能够估计MPD，这是一个很好的估计表面摩擦。
Electric mobility scooters (EMSs) which are solely battery-operated personal small vehicles are becoming an increasingly common way for a walking aid. To ensure the accessibility of EMS users, pavement surface condition of sidewalks is one of the important factors in terms of traveling safety and comfort. This study examines the requirements of evaluating sidewalk pavements by focusing on the interaction between surface properties and vibration responses of an EMS. As a result, the EMS consists of two distinctive resonance frequencies of 8 and 30 Hz associated with the megatexture and microtexture in the surface properties, respectively, at a constant speed of 3 km/h. This finding proves that the EMS vibration highly correlates with the Mean Profile Depth (MPD) inducing axle excitations but not the International Roughness Index (IRI). According to the pavement-vehicle interaction analysis, this study finally suggests that measuring acceleration of an EMS is capable of estimating MPD which is a good estimator of surface friction.