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基于悬挂参数变化评估铁路客车乘坐舒适度。

Evaluation of Ride Comfort in a Railway Passenger Car Depending on a Change of Suspension Parameters.

机构信息

Department of Transport and Handling Machines, Faculty of Mechanical Engineering, University of Žilina, Univerzitná 8215/1, 010 26 Žilina, Slovakia.

Department of Fire Engineering, Faculty of Security Engineering, University of Žilina, St. 1. Mája, 010 26 Žilina, Slovakia.

出版信息

Sensors (Basel). 2021 Dec 6;21(23):8138. doi: 10.3390/s21238138.

DOI:10.3390/s21238138
PMID:34884142
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8662417/
Abstract

Ride comfort for passengers remains a pressing topic. The level of comfort in a vehicle can influences passengers' preferences for a particular means of transport. The article aims to evaluate the influence of changes in suspension parameters on the ride comfort for passengers. The theoretical background includes a description of the applied method for a creating the virtual model of an investigated vehicle as well as the method of evaluating the ride comfort. The ride comfort of the vehicle is assessed based on the standard method, which involves calculating the mean comfort method, i.e., ride comfort index in chosen points on a body floor. The ride comfort index (Mean Comfort Standard Method) requires the input of acceleration signals in three directions. The rest of the article offers the results of simulation computations. The stiffness-damping parameters of the primary and secondary suspension systems were changed at three levels and the vehicle was run on the real track section. The ride index was calculated for all three modifications of the suspension system in the chosen fifteen points of the body floor. It was found that lower values in the stiffness of the secondary suspension system lead to lower levels of ride comfort in the investigated railway passenger car; however, lower values in the stiffness-damping parameters of the primary suspension system did not decrease the levels of ride comfort as significantly.

摘要

乘客的乘车舒适度仍然是一个紧迫的问题。车辆的舒适度会影响乘客对特定交通工具的偏好。本文旨在评估悬架参数变化对乘客乘车舒适度的影响。理论背景包括对所研究车辆虚拟模型应用方法的描述，以及对乘车舒适度评估方法的描述。车辆的乘车舒适度是基于标准方法进行评估的，该方法包括计算平均舒适度方法，即车身地板上选定点的乘车舒适度指数。乘车舒适度指数（平均舒适度标准方法）需要输入三个方向的加速度信号。本文其余部分提供了模拟计算的结果。主悬架和副悬架系统的刚度-阻尼参数在三个水平上进行了更改，并且在真实的轨道段上对车辆进行了测试。在车身地板的十五个选定点上，计算了悬架系统所有三个修改版本的乘坐指数。结果发现，副悬架系统的刚度降低会导致所研究的铁路客车的乘车舒适度降低；然而，主悬架系统的刚度-阻尼参数降低对乘车舒适度的影响并不明显。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1735/8662417/9a8d9b538f16/sensors-21-08138-g014.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1735/8662417/54e355e72fc1/sensors-21-08138-g008.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1735/8662417/9a65f2769ea3/sensors-21-08138-g011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1735/8662417/cd1e192e41f3/sensors-21-08138-g012.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1735/8662417/38d7269b50f4/sensors-21-08138-g013.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1735/8662417/9a8d9b538f16/sensors-21-08138-g014.jpg

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