Evaluation of Ride Comfort in a Railway Passenger Car Depending on a Change of Suspension Parameters
Ján Dižo,
Miroslav Blatnický,
Juraj Gerlici,
Bohuš Leitner,
Rafał Melnik,
Stanislav Semenov,
Evgeny Mikhailov,
Mariusz Kostrzewski
Affiliations
Ján Dižo
Department of Transport and Handling Machines, Faculty of Mechanical Engineering, University of Žilina, Univerzitná 8215/1, 010 26 Žilina, Slovakia
Miroslav Blatnický
Department of Transport and Handling Machines, Faculty of Mechanical Engineering, University of Žilina, Univerzitná 8215/1, 010 26 Žilina, Slovakia
Juraj Gerlici
Department of Transport and Handling Machines, Faculty of Mechanical Engineering, University of Žilina, Univerzitná 8215/1, 010 26 Žilina, Slovakia
Bohuš Leitner
Department of Fire Engineering, Faculty of Security Engineering, University of Žilina, St. 1. Mája, 010 26 Žilina, Slovakia
Rafał Melnik
Faculty of Computer Science and Food Science, Lomza State University of Applied Sciences, Akademicka 1, 18-400 Łomża, Poland
Stanislav Semenov
Department of Logistics and Traffic Safety, Educational and Scientific Institute of Transport and Building, Volodymyr Dahl East Ukrainian National University, Central Avenue 59A/403, 93400 Severodonetsk, Ukraine
Evgeny Mikhailov
Department of Logistics and Traffic Safety, Educational and Scientific Institute of Transport and Building, Volodymyr Dahl East Ukrainian National University, Central Avenue 59A/403, 93400 Severodonetsk, Ukraine
Mariusz Kostrzewski
Division of Construction Fundamentals of Transport Equipment, Faculty of Transport, Warsaw University of Technology, St. Koszykowa 75, 00-662 Warsaw, Poland
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 NMV in chosen points on a body floor. The NMV 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 NMV 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.
