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通过在电动两轮车的关键部位采用基于磁流变弹性体的阻尼处理来提高骑行者的舒适度。

Enhancement of rider comfort by magnetorheological elastomer based damping treatment at strategic locations of an electric two wheeler.

作者信息

Krishna Keerthan, Mahesha G T, Hegde Sriharsha, Shenoy B Satish

机构信息

Department of Aeronautical and Automobile Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, Karnataka, 576104, India.

出版信息

Sci Rep. 2024 Aug 29;14(1):20107. doi: 10.1038/s41598-024-70915-4.

DOI:10.1038/s41598-024-70915-4
PMID:39209954
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11362590/
Abstract

The vibrations generated in the two-wheeled vehicles like motorcycles due to road irregularities such as cracks, potholes, and bumps on the road cause discomfort for the rider as well as the pillion. These vibrations are reported to cause lower back pains, musculoskeletal effects, fatigue, and long-term health issues. Particularly, electric two-wheelers are more susceptible to these vibrations caused by the road and need attention. This paper presents an innovative technique for the reduction of vibrations at prominent locations in the electric two-wheeler to improve the rider's comfort. All measured accelerations are about vertical direction (along z-axis as per ISO 2631-1 standard). Passive and Semi-active damping treatments namely, Room temperature vulcanizing Silicone rubber and Magnetorheological elastomer (MRE) were applied on the test vehicle at strategic locations of vibration. Both were compared for their effectiveness in reducing the vibrations. Results showed that MRE based damping technique proved better vibration isolation at the strategic locations. The weighted root mean square acceleration as well as vibration dose values were found to decrease with the help of damping treatments thus improving the rider's overall comfort level.

摘要

两轮车辆（如摩托车）因道路裂缝、坑洼和颠簸等路面不平整产生的振动，会给骑手和后座乘客带来不适。据报道，这些振动会导致下背部疼痛、肌肉骨骼问题、疲劳以及长期健康问题。特别是，电动两轮车更容易受到路面引起的这些振动影响，需要引起关注。本文提出了一种创新技术，用于减少电动两轮车突出部位的振动，以提高骑手的舒适度。所有测量的加速度均为垂直方向（按照ISO 2631-1标准沿z轴方向）。在测试车辆的振动关键部位采用了被动和半主动阻尼处理方法，即室温硫化硅橡胶和磁流变弹性体（MRE）。对两者减少振动的效果进行了比较。结果表明，基于磁流变弹性体的阻尼技术在关键部位表现出更好的隔振效果。借助阻尼处理，加权均方根加速度以及振动剂量值均有所降低，从而提高了骑手的整体舒适度。

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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9445/11362590/fc563f4fe921/41598_2024_70915_Fig16_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9445/11362590/78f50f1e2f29/41598_2024_70915_Fig1_HTML.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9445/11362590/1d58d3a3d692/41598_2024_70915_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9445/11362590/06ea27873825/41598_2024_70915_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9445/11362590/89204922a40f/41598_2024_70915_Fig7_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9445/11362590/3d0ac2703c1e/41598_2024_70915_Fig8_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9445/11362590/b4b3521c7d0b/41598_2024_70915_Fig9_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9445/11362590/5cead48cffa6/41598_2024_70915_Fig10_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9445/11362590/df76ee73abd5/41598_2024_70915_Fig11_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9445/11362590/9e6fe20be5e6/41598_2024_70915_Fig12_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9445/11362590/b51add986e93/41598_2024_70915_Fig13_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9445/11362590/d9c4da83c1e7/41598_2024_70915_Fig14_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9445/11362590/063f7c5d0650/41598_2024_70915_Fig15_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9445/11362590/fc563f4fe921/41598_2024_70915_Fig16_HTML.jpg

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