A novel method for evaluating load restraint assemblies to ensure the safety of railway freight transportation.

Autor: Zhang D; School of Transportation and Logistics, Southwest Jiaotong University, Chengdu, People's Republic of China.; National Rail Transit Electrification and Automation Engineering Technology Research Center (Hong Kong Branch), Hong Kong, People's Republic of China.; Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hong Kong, People's Republic of China., Wang SM; National Rail Transit Electrification and Automation Engineering Technology Research Center (Hong Kong Branch), Hong Kong, People's Republic of China.; Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hong Kong, People's Republic of China., Tang YY; School of Transportation and Logistics, Southwest Jiaotong University, Chengdu, People's Republic of China. yinyingtang@swjtu.cn.; National United Engineering Laboratory of Integrated and Intelligent Transportation, Southwest Jiaotong University, Chengdu, People's Republic of China. yinyingtang@swjtu.cn., Ni YQ; National Rail Transit Electrification and Automation Engineering Technology Research Center (Hong Kong Branch), Hong Kong, People's Republic of China.; Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hong Kong, People's Republic of China., Guo JW; Faculty of Business, City University of Macau, Macau, People's Republic of China., Peng QY; School of Transportation and Logistics, Southwest Jiaotong University, Chengdu, People's Republic of China.; National United Engineering Laboratory of Integrated and Intelligent Transportation, Southwest Jiaotong University, Chengdu, People's Republic of China.
Jazyk: angličtina
Zdroj: Scientific reports [Sci Rep] 2024 Feb 26; Vol. 14 (1), pp. 4612. Date of Electronic Publication: 2024 Feb 26.
DOI: 10.1038/s41598-024-54772-9
Abstrakt: The violent goods vibration during curve negotiation is a huge threat to the vehicle running safety. Qualified load restraint assemblies that can significantly suppress the cargo vibration are necessary. This study proposes a novel method for evaluating the essential restraint strength, focusing on the relative motion between cargo and wagon. In the beginning, as a comparison, current methods are used to calculate the necessary stiffness of lashings, which are adopted to restrain the cargo vibration on the wagon. Based on the data of the field test, the accuracy of the established wagon-cargo coupled dynamics model is validated. The loaded wagon model negotiates the curve under different running and loading conditions. The simulation results and analysis demonstrate effective strategies for suppressing the vibration of the cargo and reveal the necessary lashing stiffness. The comparison among the results of different evaluation methods shows that the stability of the cargo can be improved by optimizing the lashing stiffness with the method of dynamics simulations. We hope this study will make a positive contribution to the safety of railway freight transportation.
(© 2024. The Author(s).)
Databáze: MEDLINE
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