Study on Passenger Comfort Based on Human–Bus–Road Coupled Vibration

Abstract

Nowadays, the comfort of drivers and passengers is drawing more and more attention. The interaction between vehicles and the asphalt road can cause coupled vibration and reduce the comfort of passengers. Therefore, the research on human–vehicle–road coupled vibration and the comfort of passengers is of great importance. In this paper, the three-dimensional human–bus–road coupled vibration system is established, including the bus model, the parallel biomechanical human model with 2 degrees-of-freedom (DOF), and road surface roughness condition. The proposed coupled model was then used to study the dynamic response of the system and the comfort evaluation of the human body. In the comfort evaluation, the annoyance rate based method was proposed to consider the randomness of passenger vibration, the difference of the psychosensory vibration, and the fuzziness of evaluation indicators. Compared to the fuzzy evaluation based on the ISO 2631 standard, the proposed annoyance rate based method gives a quantitative evaluation of human comfort. Not only the degree of comfort can be evaluated, but the percentage of people feeling uncomfortable can also be obtained. Finally, parametric studies were conducted to investigate the effects of road surface roughness, interlayer bonding condition, bus weight, bus speed, and sitting position. It is found that the road surface roughness has the most significant effect on human comfort.

Research on the Reliability of a Core Control Unit of Highway Electromechanical Equipment Based on Virtual Sensor Data

“…This shows that the random vibration caused by vehicle–road coupling can spread along the road and affect the surrounding infrastructure [ 14 ]. This point is also mentioned in the research of Arabi [ 15 ] and Wang [ 16 ] through the establishment of a three-dimensional human–bus–road coupling vibration system; the analysis shows that the road vibration can affect human comfort. Currently, the main research direction of vehicle–road coupling vibration focuses on the damage of vehicle–road action on asphalt pavement and adjacent buildings, along with the influence of such vibrations on pedestrian comfort.…”

Driving Comfort Analysis Method of Highway Bridge Based on Human-Vehicle-Bridge Interaction

“…where the meaning of the subscript i and j is the same as that of the equation (13). K ij denotes the axis weighting factors and a 0 is the RMS value of the reference acceleration, that is, a 0 � 10 −6 m/s 2 .…”

“…Furthermore, variations in vibrations exist between the driver and the vehicle body, a facet not adequately addressed by current driving comfort assessment standards [11]. In recent years, scholars have delved into comprehensive research on interaction analysis models for passenger-vehicle-railway bridge systems [12,13]. For example, Wang et al simplifed passengers as a fve-degree-of-freedom spring-damping model, conducting a comparative analysis of passenger and train dynamic responses [14].…”

Ergonomic Design of Cab Structure for Wheeled Combine Harvester

“…Some scholars have also researched the impact of road excitation on driver comfort. Wang et al (2020) analyzed the effects of pavement roughness, interlayer bonding conditions, bus weight, bus speed, and seating on human comfort. They concluded that pavement roughness had the greatest impact on human comfort.…”