College of Mechanical Engineering and Applied Electronics Technology, Beijing University of Technology, China.
Vehicle NVH and Refinement, Jaguar Land Rover, Gaydon, United Kingdom.
Appl Ergon. 2021 May;93:103354. doi: 10.1016/j.apergo.2021.103354. Epub 2021 Jan 28.
Ride comfort in vehicles can be affected by seat properties. While previous studies focused on the vertical whole-body vibration, this study was designed to understand the influence of the foam thickness at the seat pan and at the backrest on seat transmissibilities with fore-and-aft vibration. Twelve subjects sitting with or without a vertical backrest were exposed to random fore-and-aft vibration between 1 and 15 Hz with the magnitude of 0.5 ms r.m.s.. It was found that there was no significant difference in the primary resonance frequencies in the fore-and-aft in-line and vertical cross-axis transmissibilities to the seat pan and to the backrest. The resonance frequency in the fore-and-aft in-line transmissibilities to the seat pan and the backrest decreased with increasing thickness of foam at the seat pan and the backrest. Altering the thickness of foam at the seat pan was more effective than changing that at the backrest.
车辆的乘坐舒适性会受到座椅特性的影响。虽然之前的研究集中在垂直全身振动上，但本研究旨在了解座盆和靠背泡沫厚度对前后振动时座椅传递率的影响。12 名受试者或坐或不坐带垂直靠背的座椅，暴露于 1 至 15 Hz 随机前后振动，量级为 0.5 ms r.m.s.。结果发现，座盆和靠背前后轴向同线和垂直交叉轴向传递率的主共振频率没有显著差异。座盆和靠背前后轴向同线传递率的共振频率随着座盆和靠背泡沫厚度的增加而降低。改变座盆泡沫的厚度比改变靠背的厚度更有效。
